Therapeutic nanoparticles comprising a therapeutic agent and methods of making and using same
Abstract
The present disclosure generally relates to nanoparticles comprising a substantially hydrophobic acid and a therapeutic agent (1- (4 - {[4- (dimethylamino) piperidin-1-yl] carbonyl} phenyl) -3- [4- (4, 6-dimorpholin-4-yl-1,3,5-triazin-2-yl) phenyl] urea), or their pharmaceutically acceptable salts and a polymer. Other aspects include methods of making and using said nanoparticles.

Term
No projected expiry on record.
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13 claims: 6 independent, 7 dependent
- 1Una nanopartícula terapéutica que comprende;de 0.05 a 30 por ciento en peso de un ácido sustancialmente hidrófobo;de 0.2 a 25 por ciento en peso de un agente terapéutico;donde el pK a del agente terapéutico protonado es r de 1.0 unidades pKa mayor que el pK a del ácido hidrófrobo;y de 50 a alrededor de 99.75 por ciento en peso de un polímero seleccionado de copolímero de dibloque de ácido poli(láctico)—poli(etilen)ghcol o un copolímero de dibloque de poli(ácido láctico-ácido co-glicóhco)poli(etilen)ghcol y sus combinaciones, donde la nanopartícula terapéutica comprende de 10 a 30 por ciento en peso de poli(etilen)ghcol, donde el agente terapéutico es 1-(4-{[4-(dimetilamino)piperidin-1-il]carbonil}fenil)-3-[4-(4,6dimorfolin—4—¡I—1,3,5—triazin—2—il)fenil]urea o una de sus sales farmacéuticamente aceptables,en el que la sal farmacéuticamente aceptable es acetato, bencenosulfonato, benzoato, bicarbonato, dihidrocloruro, difosfato, hidrobromuro, hidrocloruro, lactato, maleato, mesilato, oleato, fosfato o ptoluenosulfonato
- 22 La nanopartícula terapéutica de acuerdo con la reivindicación 1, que comprende1-(4-{[4-(dimetilam¡no)p¡perid¡n-1-¡l]carbonil}fenil)-3-[4-(4,6dimorfolin-4-il-1,3,5—triazin—2—il)feníl]urea;y PLA-PEG (en una relación molar de 16 5) en una relación en peso de alrededor de 17 1-(4-{[4-(dimetilamino)piperidin-1-il]carbonil}fenil)-3-[4(4,6—dimorfolin—4—ii—1,3,5-triazin-2-il)fenil]urea PLA-PEG
- 3La nanopartícula terapéutica de acuerdo con la reivindicación 1, que comprende:189 1 —(4—{[4—(dimetilamino)piperidin—1 —il]carbonil}fenil)—3—[4—(4,6— dimorfolin-4-il-1,3,5—triazin—2—il)fenil]urea;y PLA-PEG (en una relación molar de 16:5) en una relación en peso de 1:14 de 1-(4—{[4-(dimetilamino)p¡perid¡n-1-il]carbonil}fenil)-3-[4-(4,65 dimorfolin—4—¡1—1,3,5—triazin—2—il)fenil]urea. PLA-PEG.
- 4La nanopartícula terapéutica de acuerdo con la reivindicación 1 que comprende' 1-(4-{[4-(dimet¡lamino)piper¡din-1-¡l]carbon¡l}fenil)-3-[4-(4,6dimorfolin—4—¡I—1,3,5—triazin—2—¡l)fenil]urea; 10 y PLA-PEG (en una relación molar de 16:5) en una relación en peso de 1 3 de 1 —(4—[[4—(dimetilamino)piperidin—1 —il]carbonil}fenil)—3—[4—(4,6— dimorfolin-4-il—1,3,5-tr¡azin-2-il)fenil]urea'PLA-PEG.
- 55 Una nanopartícula terapéutica que comprende' 0.2 a 25 por ciento en peso de un agente terapéutico; 15 un ácido sustancialmente hidrófobo, donde la relación molar del ácido sustanclalmente hidrófobo al agente terapéutico varía de 0 25:1 a 2 1 y donde el pKa del agente terapéutico protonado es de 1.0 unidades pKa mayor que el pK a del ácido hidrófrobo;y 50 a 99.75 por ciento en peso de un polímero seleccionado de 20 copolímero de dibloque de ácido poli(láctico)—poli(et¡len)glicol o un copolímero de dibloque de poli(ácido láctlco-ácido co—glicólico)—poli(et¡len)glicol y sus combinaciones, donde la nanopartícula terapéutica comprende de 10 a 30 por ciento en peso de poli(etilen)glicol, donde el agente terapéutico es 1-(4—{[4(dimetilamino)piper¡din-1-il]carbonil}fenil)-3-[4-(4,6-dimorfolin-4-¡l-1,3,525 triazin—2—¡l)fenil]urea o una de sus sales farmacéuticamente aceptables, En el que la sal farmacéuticamente aceptable es acetato, bencenosulfonato, benzoato, bicarbonato, dihidrocloruro, difosfato, hidrobromuro, hidrocloruro, 190 lactato, maleato, mesilato, oleato, fosfato o p-toluenosulfonato .
- 6Una nanopartícula terapéutica que comprende:un ácido sustanclalmente hidrófobo, un agente terapéutico;donde el pK a del agente terapéutico protonado es de 1.0 unidades pKa mayor que el pK a del ácido hidrófrobo;y un polímero seleccionado de copolímero de díbloque de ácido poh(láct¡co)-pol¡(etílen)ghcol o un copolímero de dibloque de poli(ác¡do láctico— ácido co—glicólico)—poli(etilen)glicol y sus combinaciones, donde el agente terapéutico es 1-(4-{[4-(d¡metilamino)p¡per¡din-1-¡l]carbon¡l}fenil)-3-[4-(4,6dimorfolin—4—il—1,3,5—triazin—2—¡l)fenil]urea o una de sus sales farmacéuticamente aceptables, En el que la sal farmacéuticamente aceptable es acetato, bencenosulfonato, benzoato, bicarbonato, dihidrocloruro, difosfato, hidrobromuro, hidrocloruro, lactato, maleato, mesilato, oleato, fosfato o ptoluenosulfonato
- 7Una nanopartícula terapéutica que comprende:un agente terapéutico;un ácido sustancialmente hidrófobo, donde la relación molar del ácido sustancialmente hidrófobo al agente terapéutico varía de 0.25:1 a 2:1 y donde el pKa del agente terapéutico protonado es de 1.0 unidades pKa mayor que el pK a del ácido hidrófrobo, y un polímero seleccionado de copolímero de dibloque de ácido poh(láctico)—poli(etilen)glicol o un copolímero de dibloque de poli(ácido lácticoácido co—glicólico)—poli(etilen)glicol y sus combinaciones, y, donde el agente terapéutico es 1-(4—{[4-(dimetilamino)piperidin-1-il]carbonil}fenil)-3-[4-(4,6dimorfoiin—4—il—1,3,5—triazin—2—ii)fenil]urea o una de sus sales farmacéuticamente aceptables, En el que la sal farmacéuticamente aceptable es acetato, bencenosulfonato, benzoato, bicarbonato, dihidrocloruro, difosfato, 191 hidrobromuro, hidrocloruro, lactato, maleato, mesilato, oleato, fosfato o ptoluenosulfonato.
- 8La nanopartícula terapéutica de la reivindicación 5 o 7, donde la relación molar del ácido sustancialmente hidrófobo al agente terapéutico es de 5 0.5-1 a 1.5:1.
- 9La nanopartícula terapéutica de la reivindicación 5 o 7, donde la relación molar del ácido sustancialmente hidrófobo al agente terapéutico es de 0 25:1 a 1.1.
- 10La nanopartícula terapéutica de la reivindicación 5 o 7, donde la 10 relación molar del ácido sustancialmente hidrófobo al agente terapéutico es de 0 75 1 a 1 25 1.
- 1111 La nanopartícula terapéutica de cualquiera de las reivindicaciones 1-10, donde el pK a del agente terapéutico protonado es de 2.0 unidades pKa mayor que el pK a del ácido hidrófrobo. 15 12 La nanopartícula terapéutica de cualquiera de las reivindicaciones 1-10, donde el pK a del agente terapéutico protonado es de 4 0 unidades pKa mayor que el pK a del ácido hidrófrobo 13. Una nanopartícula terapéutica que comprende:un par de iones hidrófobos que comprende un ácido hidrófrobo y agente 20 terapéutico;donde la diferencia entre el pKa del agente terapéutico protonado y el ácido hidrófrobo es de 1.0 unidades pKa o mayor;y de 50 a 99.75 por ciento en peso de un copolímero de dibloque de ácido poli(láctico)-poh(etilen)glicol, donde el copolímero de ácido poli(láctico)poli(etilen)glicol tiene un peso molecular promedio en número de 15 kDa a 20 25 kDa de poli(ácido láctico) y un peso molecular promedio en número de 4 kDa a 6 kDa de poli(et¡len)glicol, donde el agente terapéutico es 1-(4-{[4(d¡metilamino)piperidin—1—¡l]carbonil}fenil)—3—[4—(4,6—dimorfohn—4—il—1,3,5— 192 triazin-2-il)fenil]urea o una de sus sales farmacéuticamente aceptables, En el que la sal farmacéuticamente aceptable es acetato, bencenosulfonato, benzoato, bicarbonato, dihidrocloruro, difosfato, hidrobromuro, hidrocloruro, lactato, maleato, mesilato, oleato, fosfato o p-toluenosulfonato. 5 14 La nanopartícula terapéutica de la reivindicación 13, donde la diferencia entre el pKa del agente terapéutico protonado y el ácido hidrófrobo es de 2.0 unidades pKa 15. La nanopartícula terapéutica de ia reivindicación 13, donde la diferencia entre el pKa del agente terapéutico protonado y el ácido hidrófrobo 10 es de 4.0 unidades pKa 16. La nanopartícula terapéutica de cualquiera de las reivindicaciones 1-4, 6 o 11-15, que comprende de 0 05 a 20 por ciento en peso del ácido hldrófrobo. 17. La nanopartícula terapéutica de cualquiera de las reivindicaciones 15 1-16, donde el ácido sustanclalmente hidrófobo tiene un logP que varía de 2 a 18 La nanopartícula terapéutica de cualquiera de las reivindicaciones 1-16, donde el ácido sustancialmente hidrófobo tiene un logP que varía de 4 a 20 19. La nanopartícula terapéutica de cualquiera de las reivindicaciones 1-18, donde el ácido sustancialmente hidrófobo tiene un pK a en agua de -1 0 a 5.0. 20. La nanopartícula terapéutica de cualquiera de las reivindicaciones 1-18, donde el ácido sustancialmente hidrófobo tiene un pK a en agua de 2 0 a 25 5 0 21. La nanopartícula terapéutica de cualquiera de las reivindicaciones 1-20, donde el ácido sustancialmente hidrófobo y el agente terapéutico forman 193 un par de iones hidrófobos en la nanopartícula terapéutica. 22 La nanopartícula terapéutica de cualquiera de las reivindicaciones 1-21, donde el ácido hidrófrobo es un ácido graso. 23. La nanopartícula terapéutica de la reivindicación 22, donde el ácido graso es un ácido graso saturado seleccionado del grupo que consiste en;ácido caproico, ácido enántico, ácido caprílico, ácido pelargónico, ácido cáprico, ácido undecanoico, ácido láurico, ácido tridecílico, ácido mirístico, ácido pentadecílico, ácido palmítico, ácido margárico, ácido esteárico, ácido nonadecílico, ácido araquídico, ácido heneicosílico, ácido behénico, ácido tricosílico, ácido lignocérico, ácido pentacosílico, ácido cerótico, ácido heptacosílico, ácido montámco, ácido nonacosílico, ácido melísico, ácido henatriacontíhco, ácido lacceroico, ácido psílico, ácido gédico, ácido ceroplástico, ácido hexatriacontílico, y sus combinaciones. 24. La nanopartícula terapéutica de la reivindicación 22, donde el ácido graso es un ácido graso omega-3 seleccionado del grupo que consiste en: ácido hexadecatrienoico, ácido alfa-linolénico, ácido estearidónico, ácido eicosatrienoico, ácido eicosatetraenoico, ácido eicosapentaenoico, ácido heneicosapentaenoico, ácido docosapentaenoico, ácido docosahexaenoico, ácido tetracosapentaenoico, ácido tetracosahexaenoico, y sus combinaciones. 25. La nanopartícula terapéutica de la reivindicación 22, donde el ácido graso es un ácido graso omega-6 seleccionado del grupo que consiste en. ácido linoleico, ácido gamma-hnolénico, ácido eicosadienolco, ácido dlhomo-gamma-linolénico, ácido araquidónico, ácido docosadienoico, ácido adrénico, ácido docosapentaenoico, ácido tetracosatetraenoico, ácido tetracosapentaenoico, y sus combinaciones. 26. La nanopartícula terapéutica de la reivindicación 22, donde el ácido graso es un ácido graso omega-9 seleccionado del grupo que consiste 194 en. ácido oleico, ácido eicosenoico, ácido Mead, ácido erúcico, ácido nervónico, y sus combinaciones. 27 La nanopartícula terapéutica de la reivindicación 26, donde el ácido graso es ácido oleico. 28 La nanopartícula terapéutica de la reivindicación 27, donde la relación en peso de 1—(4—{[4—(d¡metilamino)piper¡din—1—il]carbonil}fenil)—3—[4— (4,6—dimorfolin—4—il—1,3,5—triazin—2—il)fen¡l]urea un ácido oleico es de 6:1. 29 La nanopartícula terapéutica de la reivindicación 22, donde el ácido graso es un ácido graso pollinsaturado seleccionado del grupo que consiste en: ácido ruménico, ácido α-caléndico, ácido β-caléndico, ácido jacárico, ácido α-eleosteárico, ácido β-eleoesteárico, ácido catálpico, ácido punícico, ácido rumelénico, ácido α-parinárico, ácido β-parinárico, ácido bosseo pentaenoico, ácido pinolénico, ácido podocárpico, y sus combinaciones. 30 La nanopartícula terapéutica de cualquiera de las reivindicaciones 1-22, donde el ácido hldrófrobo es un ácido biliar. 31 La nanopartícula terapéutica de la reivindicación 30, donde el ácido biliar es seleccionado del grupo que consiste en ácido quenodesoxicólico, ácido ursodesoxicólico, ácido desoxicólico, ácido hicólico, ácido betamuricólico, ácido cólico, ácido litocólico, un ácido biliar conjugado con aminoácido, y sus combinaciones. 32 La nanopartícula terapéutica de la reivindicación 31, donde el ácido biliar es ácido cólico. 33 La nanopartícula terapéutica de la reivindicación 31, donde el ácido biliar conjugado con aminoácido es un ácido biliar conjugado con glicina o un ácido biliar conjugado con taurina. 34. La nanopartícula terapéutica de cualquiera de las reivindicaciones 195 1-21, donde el ácido hidrófrobo es seleccionado del grupo que consiste en ácido dioctil sulfosuccínico, ácido 1-hidroxi-2-naftoico, ácido dodecilsulfúrico, ácido naftaleno-1,5-disulfónico, ácido naftaleno-2-sulfónico, ácido pamoico, ácido undecanoico, y sus combinaciones. 5 35. La nanopartícula terapéutica de la reivindicación 34, donde el ácido hidrófrobo es ácido pamoico. 36. La nanopartícula terapéutica de la reivindicación 35, donde la relación en peso de 1—(4—{[4—(dimetiíam¡no)p¡per¡d¡n—1—iI]carbon¡I}fen¡l)—3—[4— (4,6—dimorfolin—4—il—1,3,5—triazin—2—il)fenii]urea a ácido pamoico es de 1 8:1 10 37. La nanopartícula terapéutica de cualquiera de las reivindicaciones 1-36, que comprende de 1 a 20 por ciento en peso del agente terapéutico. 38. La nanopartícula terapéutica de cualquiera de las reivindicaciones 1-36, que comprende de 2 a 20 por ciento en peso del agente terapéutico 39. La nanopartícula terapéutica de cualquiera de las reivindicaciones 15 1-36, que comprende de 4 a 20 por ciento en peso del agente terapéutico. 40. La nanopartícula terapéutica de cualquiera de las reivindicaciones 1-36, que comprende de 5 a 20 por ciento en peso del agente terapéutico. 41 La nanopartícula terapéutica de cualquiera de las reivindicaciones 1-36, donde el ácido hidrófrobo tiene un peso molecular de 200 Da y 800 Da. 20 42 La nanopartícula terapéutica de cualquiera de las reivindicaciones 1-41, donde el copolímero de ácido poh(láctico)—poh(et¡len)ghcol tiene una fracción de peso molecular promedio en número de ácido poli(láctico) de 0 6 a 0 95. 43 La nanopartícula terapéutica de cualquiera de las reivindicaciones 25 1-41, donde el copolímero de ácido poli(láctico)-poh(etilen)glicol tiene una fracción de peso molecular promedio en número de ácido poli(láctico) de 0 6 a 0 8. 196 44. La nanopartícula terapéutica de cualquiera de las reivindicaciones 1-41, donde el copolímero de ácido poh(láctico)-poli(etilen)glicol tiene una fracción de peso molecular promedio en número de ácido poli(láctico) de 0.75 a 0.85 5 45. La nanopartícula terapéutica de cualquiera de las reivindicaciones 1—41, donde el copolímero de ácido poli(láctico)-poli(etilen)glicol tiene una fracción de peso molecular promedio en número de ácido poli(láctico) de 0.7 a 0.9 46. La nanopartícula terapéutica de cualquiera de las reivindicaciones 10 1-45, donde la nanopartícula terapéutica comprende de 10 a 25 por ciento en peso de poh(etiien)glicol. 47 La nanopartícula terapéutica de cualquiera de las reivindicaciones 1-45, donde la nanopartícula terapéutica comprende de 10 a 20 por ciento en peso de poli(etilen)glicol. 15 48. La nanopartícula terapéutica de cualquiera de las reivindicaciones 1-45, donde la nanopartícula terapéutica comprende de 15 a 25 por ciento en peso de poli(etiien)glicol. 49. La nanopartícula terapéutica de cualquiera de las reivindicaciones 1-45, donde la nanopartícula terapéutica comprende de 20 a 30 por ciento en 20 peso de poli(etilen)ghcol. 50 La nanopartícula terapéutica de cualquiera de las reivindicaciones 1-49, donde el copolímero de ácido poli(láctico)—poli(etilen)glicol tiene un peso molecular promedio en número de 15 kDa a 20 kDa de poli(ácido láctico) y un peso molecular promedio en número de 4 kDa a 6 kDa de poli(etilen)glicol. 25 51. La nanopartícula terapéutica de cualquiera de las reivindicaciones 1-50, que además comprende de 0.2 a 30 por ciento en peso de copolímero de ácido poli(láctico)—poh(etilen)glicol funcionahzado con un ligando de 197 direccionamiento. 52. La nanopartícula terapéutica de cualquiera de las reivindicaciones 1-50, que además comprende de 0.2 a 30 por ciento en peso de copolímero de ácido poh(láct¡co)-ác¡do co—poli(glicólico)—poli(etilen)glícol funcionalizado con 5 un ligando de direccionamiento. 53 La nanopartícula terapéutica de la reivindicación 51 o 52, donde el ligando de direccionamiento está covalentemente ligado al poli(et¡len)glicol 54 La nanopartícula terapéutica de cualquiera de las reivindicaciones 1-53, donde el ácido hldrófrobo es un pohelectrólito 10 55. La nanopartícula terapéutica de la reivindicación 54, donde el polielectrólíto es seleccionado del grupo que consiste en un poli(ácido estireno sulfómco), políácido pohacrílíco y ácido pohmetacrílico 56 La nanopartícula terapéutica de cualquiera de las reivindicaciones 1-55, donde el ácido sustancíalmente hidrófobo es una mezcla de dos o más 15 ácidos sustancialmente hidrófobos. 57. La nanopartícula terapéutica de la reivindicación 56, que comprende una mezcla de dos ácidos sustancialmente hidrófobos. 58. La nanopartícula terapéutica de la reivindicación 57, donde los dos ácidos sustancialmente hidrófobos son ácido oleico y ácido cólico. 20 59. La nanopartícula terapéutica de la reivindicación 56, que comprende una mezcla de tres ácidos sustancialmente hidrófobos. 60 La nanopartícula terapéutica de la reivindicación 56, que comprende una mezcla de cuatro ácidos sustancialmente hidrófobos. 61 La nanopartícula terapéutica de la reivindicación 56, que 25 comprende una mezcla de cinco ácidos sustancíalmente hidrófobos. 62 Una nanopartícula terapéutica preparada por el proceso que comprende las etapas de: 198 la emulsión de una primera fase orgánica que comprende un primer polímero, un agente terapéutico y un ácido sustancialmente hidrófobo, de modo de formar una fase de emulsión;Enfriamiento de la fase de emulsión a una temperatura de 0 ° C a 10 ° C, formando de este modo una fase de enfriamiento rápido;la filtración de la fase apagada a fin de recuperar las nanopartículas terapéuticas, donde el agente terapéutico es 1-(4-{[4-(dimetilamino)piper¡d¡n1 —il]carbonil}fen¡I)—3—[4—(4,6—dimorfolin—4—il—1,3,5-triazin-2-il)fenil]urea o una de sus sales farmacéuticamente aceptables, En el que la sal farmacéuticamente aceptable es acetato, bencenosulfonato, benzoato, bicarbonato, dihidrocloruro, difosfato, hidrobromuro, hidrocloruro, lactato, maleato, mesilato, oleato, fosfato o ptoluenosulfonato. 63 La nanopartícula terapéutica de la reivindicación 62, donde el ácido hidrófrobo es un ácido graso. 64. La nanopartícula terapéutica de la reivindicación 63, donde el ácido graso es un ácido graso saturado seleccionado del grupo que consiste en: ácido caproico, ácido enántico, ácido caprílico, ácido pelargónico, ácido cáprico, ácido undecanoico, ácido láurico, ácido tridecílico, ácido mirístico, ácido pentadecílico, ácido palmítico, ácido margárico, ácido esteárico, ácido nonadecílico, ácido araquídico, ácido heneicosílico, ácido behénico, ácido tricosílico, ácido lignocérico, ácido pentacosílico, ácido cerótico, ácido heptacosílico, ácido montánico, ácido nonacosíhco, ácido melísico, ácido henatriacontílico, ácido lacceroico, ácido psílico, ácido gédico, ácido ceroplástico, ácido hexatriacontílico, y sus combinaciones. 65. La nanopartícula terapéutica de la reivindicación 63, donde el ácido graso es un ácido graso omega-3 seleccionado del grupo que consiste en- ácido hexadecatrienoico, ácido alfa—hnoiémco, ácido estearidónico, ácido 199 eicosatrienoico, ácido eicosatetraenoico, ácido eicosapentaenoico, ácido heneicosapentaenoico, ácido docosapentaenoico, ácido docosahexaenoico, ácido tetracosapentaenoico, ácido tetracosahexaenoico, y sus combinaciones. 66 La nanopartícula terapéutica de la reivindicación 63, donde el 5 ácido graso es un ácido graso omega-6 seleccionado del grupo que consiste en. ácido hnoleico, ácido gamma-linolénico, ácido eicosadienoico, ácido dihomo-gamma-linolénico, ácido araquidómco, ácido docosadienoico, ácido adrénico, ácido docosapentaenoico, ácido tetracosatetraenoico, ácido tetracosapentaenoico, y sus combinaciones. 10 67. La nanopartícula terapéutica de la reivindicación 63, donde el ácido graso es un ácido graso omega-9 seleccionado del grupo que consiste en' ácido oleico, ácido eicosenoico, ácido Mead, ácido erúcico, ácido nervónico, y sus combinaciones. 68 La nanopartícula terapéutica de la reivindicación 67, donde el 15 ácido graso es ácido oleico. 69 La nanopartícula terapéutica de la reivindicación 63, donde el ácido graso es un ácido graso polnnsaturado seleccionado del grupo que consiste en' ácido ruménico, ácido α-caléndico, ácido β-caléndico, ácido jacárico, ácido a-eleosteárico, ácido β-eleoesteárico, ácido catálpico, ácido 20 punícico, ácido rumelénico, ácido α-parinárico, ácido β-parinánco, ácido bosseo pentaenoico, ácido pinolémco, ácido podocárpico, y sus combinaciones. 70. La nanopartícula terapéutica de la reivindicación 62, donde el ácido hidrófrobo es un ácido biliar. 25 71. La nanopartícula terapéutica de la reivindicación 70, donde el ácido biliar es seleccionado del grupo que consiste en ácido quenodesoxicólico, ácido ursodesoxicólico, ácido desoxicólico, ácido hicólico, ácido beta200 muricólico, ácido cólico, ácido litocólico, un ácido biliar conjugado con aminoácido, y sus combinaciones. 72. La nanopartícula terapéutica de la reivindicación 71, donde el ácido biliar es ácido cólico 5 73 La nanopartícula terapéutica de la reivindicación 71, donde el ácido biliar conjugado con aminoácido es un ácido biliar conjugado con glicina o un ácido biliar conjugado con taurina 74. La nanopartícula terapéutica de la reivindicación 62, donde el ácido hldrófrobo es seleccionado del grupo que consiste en ácido dloctll 10 sulfosuccínlco, ácido 1-h¡droxl-2-naftolco, ácido dodecilsulfúrlco, ácido naftaleno-1,5-dlsulfónlco, ácido naftaleno-2-sulfónlco, ácido pamoico, ácido undecanoico, y sus combinaciones. 75 La nanopartícula terapéutica de la reivindicación 74, donde el ácido hldrófrobo es ácido pamoico 15 76. La nanopartícula terapéutica de cualquiera de las reivindicaciones 62-75, donde el ácido hldrófrobo tiene un peso molecular de 200 Da y 800 Da 77. La nanopartícula terapéutica de cualquiera de las reivindicaciones 62-76, donde el primer polímero es copolímero de ácido poli(láctico)— poh(etilen)ghcol. 20 78 La nanopartícula terapéutica de cualquiera de las reivindicaciones 62-76, donde el primer polímero es copolímero de ácido poli(láctico)—ácido copoli(glicólico)—pol¡(etilen)gl¡col. 79 La nanopartícula terapéutica de cualquiera de las reivindicaciones 62-78, donde el ácido sustanclalmente hidrófobo es una mezcla de dos o más 25 ácidos sustanclalmente hidrófobos. 80. La nanopartícula terapéutica de la reivindicación 79, que comprende una mezcla de dos ácidos sustancialmente hidrófobos 201 81 La nanopartícula terapéutica de la reivindicación 79, que comprende una mezcla de tres ácidos sustancialmente hidrófobos. 82 La nanopartícula terapéutica de la reivindicación 79, que comprende una mezcla de cuatro ácidos sustancialmente hidrófobos. 5 83 La nanopartícula terapéutica de la reivindicación 79, que comprende una mezcla de cinco ácidos sustancialmente hidrófobos. 84 La nanopartícula terapéutica de cualquiera de las reivindicaciones 1, 5-77, o 79-83 donde el polímero es PLA-PEG, y la relación molar de PLAPEG es 5:1. 10 85 Una nanopartícula terapéutica preparada por el proceso que comprende las etapas de la combinación de una primera fase orgánica con una primera solución acuosa para formar una segunda fase, la emulsión de la segunda fase a una temperatura de de 0 0 C a 10 ° C, 15 fin de formar una fase de emulsión, donde la fase de emulsión comprende un primer polímero, agente terapéutico, y un ácido sustancialmente hidrófobo;el apagado de la fase de emulsión de modo de formar una fase apagada, y la filtración de la fase apagada a fin de recuperar las nanopartículas 20 terapéuticas, donde el agente terapéutico es 1-(4-{[4-(d¡met¡lamino)p¡per¡din1—¡l]carboml}fen¡l)—3-[4-(4,6-dimorfolin- 4—il—1,3,5-triazin-2-¡l)fenil]urea, la primera fase orgánica comprende el agente terapéutico y ácido pamoico en una relación en peso de agente terapéutico a ácido pamoico de 11.1, y PLA-PEG (en una relación molar de 16.5) en una relación en peso de agente terapéutico 25 a PLA-PEG de 1.3, en un solvente orgánico que comprende bencil alcohol y etil acetato en una relación en peso de bencil alcohol a etil acetato de 1 25;y la primera solución acuosa comprende un polioxietileno (100) estearil éter disuelto 202 en bencil alcohol en una relación en peso de 0.005:1, y la combinación de la primera fase orgánica y la primera fase acuosa en una relación en peso de 1:5 para formar una segunda fase;la emulsión de la segunda fase de allí formada, y el apagado de la fase de emulsión con ácido cítrico, 0,1 M, en solución 5 acuosa a pH 4.5;y la concentración del producto resultante. 86 Una nanopartícula terapéutica de 1—(4—{[4— (d¡metilamino)piperid¡n-1-¡l]carbonil}fenil)-3-[4-(4,6-d¡morfohn-4-il-1,3,5triazin-2-il)feml]urea o su sal farmacéuticamente aceptable, En el que la sal farmacéuticamente aceptable es acetato, bencenosulfonato, benzoato, bicarbonato, 10 dihidrocloruro, difosfato, hidrobromuro, hidrocloruro, lactato, maleato, mesilato, oleato, fosfato o p-toluenosulfonato. 87. Una nanopartícula terapéutica que comprende un agente terapéutico o una de sus sales farmacéuticamente aceptables y un polímero 15 seleccionado de copolímero de dibloque de ácido poli(láctico)—poli(etilen)ghcol o un copolímero de dibloque de poli(ác¡do láctico-ácido co-glicólico)poii(etilen)glicol y sus combinaciones, donde el agente terapéutico es 1-(4-{[4(dimetilamino)piperid¡n—1 —il]carbonil}fenil)—3—[4—(4,6—dimorfolin—4—il—1,3,5— triazin—2—¡l)fen¡l]urea o una de sus sales farmacéuticamente aceptables, En el 20 que la sal farmacéuticamente aceptable es acetato, bencenosulfonato, benzoato, bicarbonato, dihidrocloruro, difosfato, hidrobromuro, hidrocloruro, lactato, maleato, mesilato, oleato, fosfato o p-toluenosulfonato. 88. La nanopartícula terapéutica de cualquiera de las reivindicaciones 25 1-61, 86, o 87, donde se presenta adicionalmente un ligando de dlreccionamiento, que es PLA-PEG-GL, donde GL tiene la siguiente estructura: 203 89 La nanopartícula terapéutica de acuerdo con cualquiera de las reivindicaciones 1-61 o 86-88, que además comprende un solubilizador. 90. La nanopartícula terapéutica de acuerdo con la reivindicación 89, 5 donde el solubilizador es polisorbato 80 91. La nanopartícula terapéutica de la reivindicación 89, donde el solubilizador es pohoxietileno (100) estearil éter. 92. La nanopartícula terapéutica de cualquiera de las reivindicaciones 1-91, donde el agente terapéutico es 1-(4-{[4-(dimetilamino)piperidin-110 il]carbonil}fenil)—3—[4—(4,6—dimorfolin—4—il—1,3,5—triazin—2—il)fenil]urea. 93. Un proceso para la preparación de una nanopartícula terapéutica, que comprende las etapas de' la combinación de una primera fase orgánica con una primera solución 15 acuosa para formar una segunda fase;la emulsión de la segunda fase a fin de formar una fase de emulsión, donde la fase de emulsión comprende un primer polímero, agente terapéutico y un ácido sustancialmente hidrófobo;el apagado de la fase de emulsión a una temperatura deO ° C a 10 °C de 20 modo de formar una fase apagada;y la filtración de la fase apagada a fin de recuperar las nanopartículas terapéuticas, donde el agente terapéutico es 1-(4-{[4-(d¡metilam¡no)p¡peridin1 —il]carbonil}fenil)—3—[4—(4,6—dimorfolin—4—il—1,3,5-triazin-2-il)feml]urea o una de sus sales farmacéuticamente aceptables, En el que la sal 25 farmacéuticamente aceptable es acetato, bencenosulfonato, benzoato, 204 bicarbonato, dihidrocloruro, difosfato, hidrobromuro, hidrocloruro, lactato, maleato, mesilato, oleato, fosfato o p-toluenosulfonato 94 El proceso de la reivindicación 93, que además comprende la 5 combinación del agente terapéutico y el ácido sustancialmente hidrófobo en la segunda fase antes de la emulsión de la segunda fase 95. El proceso de la reivindicación 94, donde el agente terapéutico y el ácido sustancialmente hidrófobo forman un par de iones hidrófobos antes de la emulsión de la segunda fase. 10 96 El proceso de la reivindicación 94, donde el agente terapéutico y el ácido sustancialmente hidrófobo forman un par de iones hidrófobos antes o durante la emulsión de la segunda fase. 97 El proceso de la reivindicación 94, que además comprende la combinación del agente terapéutico y el ácido sustancialmente hidrófobo en la 15 segunda fase en forma sustancialmente concurrente con la emulsión de la segunda fase 98. El proceso de la reivindicación 94, donde el primera fase orgánica comprende el agente terapéutico, y la primera solución acuosa comprende el ácido sustancíalmente hidrófobo 20 99 El proceso de cualquiera de las reivindicaciones 93-98, donde el agente terapéutico, cuando es protonado, tiene un primer pK a , el ácido sustancíalmente hidrófobo tiene un segundo pK a , y la fase de emulsión es apagada con una solución acuosa que tiene un pH igual a una unidad pKa entre el primer pK a y el segundo pK a . 25 100. El proceso de la reivindicación 99, donde la fase apagada tiene un pH igual a una unidad pKa entre el primer pK a y el segundo pK a . 101. El proceso de cualquiera de las reivindicaciones 93-100, donde el 205 agente terapéutico, cuando es protonado, tiene un primer pK a , el ácido sustanclalmente hidrófobo tiene un segundo pK a , y la primera solución acuosa tiene un pH igual a una unidad pKa entre el primer pK a y el segundo pK a . 102. El proceso de cualquiera de las reivindicaciones 99-101, donde el 5 pH es Igual a una unidad pKa que es equidistante entre el primer pK a y el segundo pK a 103. El proceso de cualquiera de las reivindicaciones 93-102, donde el agente terapéutico es 1—(4—{[4—(dimet¡lamino)p¡per¡d¡n—1—il]carbonil}fenil)—3— [4—(4,6—dimorfolin—4—¡I—1,3,5-triazin- 2-il)fenil]urea. \GEUE Oí IC 1/13 ‘LOS POLÍMEROS INCLUYEN PLGA.-PEG, PLGA, PLA-PEG, PLA Y PLA-PEG-LIGANDO EMULSION GRUESA EMULSION FINA SOLUCION APAGADO AGUA FRÍA TWEEN 80 APAGADO DE PARTÍCULA APAGADO AGUA FRIA PARTICULAS ENDURECIDAS FILTRACION FLUJO TANGENCIAL ULTRAFILTRACION/DIAFILTR ACIÓN PARTICULAS PURIFICADAS PARTICULAS ESTERILES AGUA SACAROSA SUSPENSION DE PARTÍCULA FINAL FORMULACION FINAL VIALES PARA CONGELAMIENTO O LIOFILIZACIÓN FIG. 1 RUIZ SOTOLONGO MARIA LOURDES AGENTE OFICIAL 2/13 Ν ϋ LL 3/13 FIG. 2B MAR , AGENTE OF ' cb CHL 4/13 LIBERACIÓN IN VITRO DE AGENTE TERAPEUTICO DE FORMULACIONES A, B C oavusan ooun^dvuai 3±N3ov % 5/13 oo o co 3 ex «M LLI a» o o O LLI oc ω O o H O LLI Q. qc LLI H LLI ίο o o LL X •O o _i O O CQ 2 2 O -O O o 5 5 O O o: lli 5 g g 2^000 LL LL LL o ex (iiwon) ooi±n3dvya± aiNaov onoo LLI O'' O (Ώ LLI CC CQ O o o LL 100000 (iwon) ooiinadvyai 3±N3ov onoo FIG. 4 yGEIOE ÜF ICIAl 6/13 FIG. 5 OOVH3an OOI±n3dVy31 31N3OV % i l·' 7/13 LIBERACION IN VITRO PARA LOTES DE FORMULACION C APAGADOS EN REGULADOS DE ÁCIDO CÍTRICO, pH 4,5 oavaaan ooun^dvaai sínsov % FIG. 6 8/13 (είΛΙΙΛί) ΊνΗΟΑΠΙ Ν3ΙΛΙΠΊΟΑ FIG. 7 9/13 PORCENTAJE INHIBICION (pS6RP) MEDIA VOLUMEN TUMORAL (MM3) LIBERACION VELOZ (BA) CONTROL VEHICULO IA AHI 10 mg/kg formulación A 2 mg/kg formulación A 10 mg/kg formulación A 25 mg/kg 9/1OPR ». r ·· r ! ¡ J ! | ! p r ! J ! p ( p 32 36 40 44 48 52 56 60 64 68 72 76 80 84 88 92 96 ÚLTIMO DlA DOSIFICACIÓN Q4D DÍA POSIMPLANTE TUMORAL pS6 FIG. 8A 10/13 LIBERACIÓN MEDIA (OLEICO/TFA) PORCENTAJE INHIBICIÓN (pS6RP) MEDIA VOLUMEN TUMORAL (MM3) -W· CONTROL VEHÍCULO IA AHI 1U mg/kg Ά- formulación B 2 mg/kg formulación B 10 mg/kg formulación B 25 mg/kg 8/10PR 2/1 OCR 2.5002.2502,0001,750 1.5001.2501,000750500250032 36 40 44 48 52 56 60 64 68 72 76 80 84 88 92 96 A DÍA POSIMPLANTE TUMORAL FIG. 8B sotolo neo k LOURDES 11/13 LIBERACIÓN LENTA (PAMOATO) PORCENTAJE INHIBICIÓN (pS6RP) MEDIA VOLUMEN TUMORAL (MM3) 2.500 n 2.250 2,000 1,750 1.500 1.250 1,000 750 500 250 CONTROL VEHÍCULO TA API 10 mg/kg formulación q 1 o mg/kg FORMULACION q 25 mg/kg 4/10 PR Í'íí i ι i rm i i ι τ ι i 't i i ι i i 32 36 40 44 48 52 56 60 64 68 72 76 80 84 88 92 96 A DÍA POSIMPLANTE TUMORAL ÚLTIMO DÍA DOSIFICACIÓN FIG. 8C Tli i Z 3CTICL0 H3é MARI A LOOR 3 AGENTE OFICIAL
- 1212/13 Di O s D I2 LU 1600 1400 12001000800 600 400 200 LIBERACIÓN MEDIA (FORMULACIÓN Β) Ό vehículo n/a mg/kg PO/IV SID/Q4D BPD901+API 1/10 mg/mk PO/IV SID/Q4D -A-PD901 +formulación B 1 /10 mg/kg PO/IV SID/Q4D •♦-PD901 + formulación B 1/25 mg/kg PO/IV SID/Q4D VPD901 + formulación B 1 /50 mg/kg PO/IV SID/Q4D, •O-PD901 solo 1 mg/kg PO SID 32%(1+10API) 38%{1+1Q) 49% 901 • 69 %(1+2 5) V 95%(1+50) 16 20 22^ 26 DÍAS POSIMPLANTE DE CÉLULAS 1600 4400 4 1200 1000 800 600 400 LIBERACIÓN LENTA (FORMULACIÓN C) O vehículo n/a mg/kg PO/IV SID/Q4D B PD901+API 1/10 mg/mk PO/IV SID/Q4D A- PD901+ formulaciónc 1/10 mg/kg PO/IV SID/Q4D PD901+ formulación^ 1 / 25 mg/kg PO/IV SID/Q4D -V PD901 + FORMULACIÓNC 1 / 50 mg/kg PO/IV SID/Q4D_ -Ó-PD901 solo 1 mg/kg POSID T 66%(1+50) 72%(1+25) 1Q32%(1+1O API) ψ 49% 901 53%(1+10) 200 22^ 26^ 20 2Z|' 26 DÍAS POSIMPLANTE TUMORAL FIG. 9
- 1313/13 (1LU/3U) VNimSNI 00 LD CM Q4D X 4 GLUCOSA/INSULINA
Independent claims13
791 paragraphs in 43 sections, as filed
THERAPEUTIC NANOPARTICLES THAT INCLUDE A THERAPEUTIC AGENT AND A HYDROPHOBIC ACID, LABORATION METHODS AND USES OF THE SAME
RELATED APPLICATIONS
This application claims the benefit of the Provisional Application of the United States 61 / 953,628, filed on March 14, 2014, incorporated in this application by reference in its entirety.
BACKGROUND
Systems that supply certain drugs to a patient (for example, directed at a particular type of cell or tissue, or directed at a specific diseased tissue, but not normal tissue) or that control the release of drugs have long been recognized. as beneficial
For example, therapeutic agents that include an active drug and that, for example, target a particular tissue or cell type, or that target a specific diseased tissue, but not normal tissue, can reduce the amount of the drug. in tissues of the organism to which they are not directed. This is particularly important when treating a condition such as cancer, where it is desirable that a cytotoxic dose of the drug be delivered to the cancer cells, without killing the surrounding non-cancerous tissue. Effective drug targeting can reduce undesirable, and sometimes life-threatening, side effects common in cancer therapy. In addition, said therapeutic agents may allow the drugs to reach certain tissues that otherwise could not reach.
Therapeutic agents that offer controlled release and / or targeted therapy must also be able to deliver an effective amount of drug, which is a known limitation in other nanoparticle delivery systems. For example, it may be a challenge to prepare nanoparticle systems that have an appropriate amount of drug associated with each nanoparticle, while maintaining the size of the nanoparticles sufficiently small so as to have convenient delivery properties.
Therapeutic agents that contain at least one basic nitrogen atom (i.e., therapeutic agents that contain protonable nitrogen) represent an important group of therapeutic agents. However, nanoparticle formulations of this class of drugs are often hampered by undesirable ones. properties, for example, the unfavorable profiles of sudden release and the deficient load of drug
Accordingly, there is a need to formulate nanoparticle therapeutic agents and methods for making said nanoparticles that are capable of delivering therapeutic levels of therapeutic agents containing protonable nitrogen for the treatment of diseases such as cancer, while at the same time , reduce side effects in the patient.
SYNTHESIS
The present invention relates to a therapeutic nanoparticle of the therapeutic drug, 1- (4 - ([4- (dimethylamino) piperidin-1-yl] carbonyl} phenyl) -3- [4 (4,6-dimorfohn-4-¡ I — 1,3,5 — triazin — 2 — yl) phenyl] urea or its pharmaceutically acceptable salts More specifically, The present invention relates to a therapeutic nanoparticle comprising 1- (4 - {[4- (dimethylamine) piperidm-1yl] carbonyl} phenyl) -3- [4- (4,6-dimorfolin-4-yl- 1,3,5-triazin-2-yl) phenyl] urea or its pharmaceutically acceptable salts and further comprising a substantially hydrophobic acid Additionally, The present invention relates to a therapeutic nanoparticle comprising 1- (4 - {[4 (dimethylamino) piperidin-1-yl] carbonyl} phenyl) -3- [4- (4,6-dimorfohn-4-yl-1 , 3,5— triazin-2-yl) feml] urea or its pharmaceutically acceptable salts, a substantially hydrophobic acid, and a polymer selected from polyplactic acid diblock copolymer — poll (ethylene) ghcol, a diblock copolymer of poly (lactic acid-co-glycol acid) - poly (ethylene) glycol and combinations thereof, where the therapeutic nanoparticle comprises about 10 to about 30 percent by weight of poh (ethylene) glycol. The present invention further relates to a pharmaceutical composition comprising said nanoparticles, which include a plurality of said nanoparticles, and a pharmaceutically acceptable excipient. In addition, the present invention relates to a therapeutic nanoparticle comprising about 0.05 to about 30 percent by weight of a substantially hydrophobic acid, about 0 to about 25 percent by weight of 1- (4 - {[ 4- (dimethylamino) piperidin-1yl] carbonyl} phenol) —3— [4— (4,6-dimorfolln-4-yl-1,3,5-trlazin-2-yl) phenyl] urea or one of its pharmaceutically acceptable salts and about 50 to about
99.75 percent by weight of a copolymer selected from diblock copolymer of poh (lactic) -poh (ethylene) ghcol diblock, a diblock copolymer of poly (lactic acid-co-glycolic acid) —poly (ethylene) ghcol and combinations thereof , where the therapeutic nanoparticle comprises about 10 to about 30 percent by weight poh (etllen) glycol, as well as a pharmaceutical composition comprising the therapeutic nanoparticle and a pharmaceutically acceptable excipient. The present invention further relates to a therapeutic nanoparticle comprising about 0.05 to about 30 percent by weight of a substantially hydrophobic acid, about 0 to about 20 percent by weight of 1- (4 - {[4 - (dlmethylamine) pperidin-14 il] carbonyl} phenyl) —3— [4— (4,6-dimorfolin-4-yl-1,3,5-triazin-2-yl) phenyl] urea one of its pharmaceutically acceptable salts, and about 50 to about
99.75 percent by weight of a copolymer selected from poly (lactic acid) diblock copolymer - poly (ethylene) glycol, a copolymer of poly (lactic acid - glycolic acid) copolymer - poly (ethylene) glycol and combinations thereof, wherein the therapeutic nanoparticle comprises about 10 to about 30 percent by weight of poly (ethylene) glycol, as well as a pharmaceutical composition comprising the therapeutic nanoparticle and a pharmaceutically acceptable excipient
Polymeric nanoparticles including the therapeutic agent, 1- (4 - {[4- (dimethylamino) piperidin-1-yl] carbonyl) phenyl) -3- [4 (4,6-dimorfohn) are described in this application. —4 — H — 1,3,5 — triazin — 2 — yl) phenyl] urea or one of its pharmaceutically acceptable salts. This compound is basic, and is a therapeutic agent that contains protonable nitrogen, as defined below.
Methods of elaboration and use of said therapeutic nanoparticles are further described in the present application.
In one aspect, a therapeutic nanoparticle is provided. In this aspect, the therapeutic nanoparticle comprises about 0.05 to about 30 percent by weight of a substantially hydrophobic acid, about
0.2 to about 25 percent by weight of 1- (4 - {[4- (dimethylamino) piperidin1 —11] carbonyl} phenyl) —3— [4— (4.6 — dimorfolin — 4 — yl — 1.3 , 5-triazin-2-l) feml] urea or a pharmaceutically acceptable salt thereof, where the pK value<sub>to</sub> of the protonated form of the therapeutic agent is at least about 10 pKa units greater than pK<sub>to</sub> of hydrophobic acid, and about 50 to about
99.75 percent by weight of a copolymer selected from poly (lactic acid) -poly (ethylene) glycol acid diblock copolymer, a copolymer of poly (lactic acid-co-glycolic acid) -poly (ethylene) glycol and combinations thereof , where the therapeutic nanoparticle comprises about 10 to about 30 percent by weight poh (ethylene) glycol. In one embodiment, the therapeutic nanoparticle comprises about 0.05 to about 30 percent by weight of a substantially hydrophobic acid, about 0 to about 20 percent by weight of 1— (4 - {[4— ( dimethylamino) piperidin-1-yl] carbonyl} phenyl) -3- [4- (4,6-dimorfohn-4-yl-1,3,5-trlazin-2-yl) phenyl] urea or a pharmaceutically salt thereof acceptable, where the pK value<sub>to</sub> of the protonated form of the therapeutic agent is at least about 10 pK units<sub>to</sub> greater than pK<sub>to</sub> of hydrophobic acid, and about 50 to about
99.75 percent by weight of a copolymer selected from poly (lactic acid) diblock copolymer — poh (etllen) glycol, poly (lactic acid-co-glycolic acid) diblock copolymer — poly (ethylene) glycol and its combinations, where the therapeutic nanoparticle comprises about 10 to about 30 percent by weight poly (ethylene) glycol
In certain embodiments, the therapeutic nanoparticle comprises
1— (4— £ [4— (dimethylamine) piperidin — 1 — il] carbon¡l} phenyl) —3— [4— (4,6 — dimorfohn — 4 — il—
1,3,5-triazin-2-yl) feml] urea and PLA-PEG (in a molar ratio of 16 5) in a weight ratio of about 17 (therapeutic agent: PLA-PEG). In certain embodiments, the therapeutic nanoparticle comprises 1— (4 - {[4— (dimethylamino) plperidin — 1 —yl] carbonyl} feml) —3— [4— (4,6 — dlmorfohn — 4 — il — 1 , 3,5— triazin-2-yl) feml] urea and PLA-PEG (in a molar ratio of 16 5) in a weight ratio of about 1.5 (therapeutic agent PLA-PEG) In certain embodiments, The therapeutic nanoparticle comprises 1— (4 - {[4— (dimethylamine) pperidin-1-yl] carboml} phenol) -3- [4- (4,6-dimorfohn-4-yl-1 , 3,5— triazin-2-yl) feml] urea and PLA-PEG (in a molar ratio of 16 5) in a weight ratio of about 1.4 (therapeutic agent. PLA-PEG) In certain embodiments, The therapeutic nanoparticle comprises 1— (4 - {[4— (dimethylamino) piperidin — 1 —r [] carbonyl} feml) —3— [4— (4,6 — dimorfolin — 4 — yl — 1,3,5triazin- 2-yl) phenyl] urea and PLA-PEG (in a molar ratio of 16 5) in a weight ratio of about 1:14 (therapeutic agent PLA-PEG) In certain embodiments, The therapeutic nanoparticle comprises 1- (4 {[4— (dimethylamino) piperldin-1-yl] carbonyl} feml) —3— [4— (4,6-dimorfolln-4-yl-1,3,5- triazin— 2-yl) phenol] urea and PLA-PEG (in a molar ratio of 16 5) in a weight ratio of about 1.3 (therapeutic agent. PLA-PEG)
In another aspect, the therapeutic nanoparticle comprises a substantially hydrophobic acid, where the molar ratio of the substantially hydrophobic acid to the mentioned therapeutic agent ranges from about 0 25Ί to about 2: 1, about 0 2 to about 25 percent by weight of the mentioned therapeutic agent, where the pK<sub>to</sub> of the protonated therapeutic agent is at least about 10 pKa units greater than pK<sub>to</sub> of the hydrophobic acid, and about 50 to about 99 to 75 percent by weight of a polymer selected from poh (lactic acid) diblock copolymer - poly (ethylene) glycol, poly diblock copolymer (lactic acid) coglycolic acid) - poly (ethylene) glycol and combinations thereof, where the therapeutic nanoparticle comprises about 10 to about 30 percent by weight poh (ethylene) g [icol. In one embodiment, the therapeutic nanoparticle comprises a substantially hydrophobic acid, where the molar ratio of the substantially hydrophobic acid to the therapeutic agent mentioned above varies from about 0.25: 1 to about 2.1; about 0 2 to about 20 percent by weight of the aforementioned therapeutic agent, where the pK value<sub>to</sub> of the protonated therapeutic agent is at least about 10 pK units<sub>to</sub> greater than pK<sub>to</sub> of the hydrophobic acid, and about 50 to about 99.75 weight percent of a polymer selected from poly (lactic acid) diblock copolymer -poh (ethylene) glycol, poly (lactic acid-co-glycolic acid diblock copolymer) copolymer ) - poly (ethylene) glycol and combinations thereof, where the therapeutic nanoparticle comprises about 10 to about 30 percent by weight poh (ethylene) glycol
In certain embodiments, the therapeutic nanoparticle comprises a substantially hydrophobic acid and the aforementioned therapeutic agent, where the pK<sub>to</sub> of the protonated therapeutic agent is at least about 1.0 pKa units greater than pK<sub>to</sub> of the hydrophobic acid, and a polymer selected from poly (lactic) diblock copolymer - poly (ethylene) glycol or a diblock copolymer from poh (lactic acid - coghcolic acid) - pol i (ethylene) g I icol and combinations thereof .
In some embodiments, the therapeutic nanoparticle comprises the aforementioned therapeutic agent, a substantially hydrophobic acid, where the molar ratio of the substantially hydrophobic acid to the therapeutic agent ranges from about 0 25Ί to about 2 1 and where the pK<sub>to</sub> of the protonated therapeutic agent is at least about 10 pKa units greater than pK<sub>to</sub> of the hydrophobic acid, and a polymer selected from poly (lactic acid) diblock copolymer - poly (ethylene) glycol or a poly (lactic acid - co-glycol acid) diblock copolymer - 20 poh (ethylene) glycol and combinations thereof.
In some embodiments, the molar ratio of the substantially hydrophobic acid to the mentioned therapeutic agent is about 0.5: 1 to about 1.5.1 In certain embodiments, the molar ratio of the substantially hydrophobic acid to the mentioned therapeutic agent is about 0.75 1 to about 1 25.1. In certain embodiments, the molar ratio of the substantially hydrophobic acid to the mentioned therapeutic agent is about 0.25 1 to about 1Ί.
In certain embodiments, the pK<sub>to</sub> of the protonated form of the aforementioned therapeutic agent is at least about 2 0 pKa units greater than pK<sub>to</sub> of hydrophobic acid In other embodiments, pK<sub>to</sub> of the protonated form of the aforementioned therapeutic agent is at least about 4.0 pKa units greater than pK<sub>to </sub>of hydrophobic acid.
In another aspect, the therapeutic nanoparticle comprises a pair of hydrophobic ions comprising a hydrophobic acid and the aforementioned therapeutic agent; where the difference between pK<sub>to</sub> of the protonated form of the aforementioned therapeutic agent and the hldrophobic acid is at least about 1.0 pKa units, and about 50 to about 99.75 weight percent of a poly (lactic acid) diblock copolymer. ethylene) glycol, where the copolymer of poly (lactic acid) - poll (ethylene) glycol has a number average molecular weight of about
fifteen kDa at about 20 kDa of poll (lactic acid) and a number average molecular weight of about 4 kDa to about 6 kDa of poly (ethylene) glycol In certain embodiments of this aspect of the invention, the difference between the pK<sub>to</sub> of the protonated form of the aforementioned therapeutic agent and hldrophobic acid is at least about 2 0 pKa units In other embodiments, the difference between pK<sub>to</sub> of the protonated form of the aforementioned therapeutic agent and the hldrophobic acid is at least about 4 0 pKa units.
In certain embodiments, the therapeutic nanoparticle comprises about 0.05 to about 20 percent by weight of the hydrophobic acid
In some embodiments, the substantially hydrophobic acid has a P log of about 2 to about 8, where P is the octanol / water partition coefficient of the hydrophobic acid. In some embodiments, the substantially hydrophobic acid has a P log of about 4 to about 8 In some embodiments, the substantially hydrophobic acid has a P log of about 2 to about 7
In some embodiments, the substantially hydrophobic acid has a pK<sub>to</sub> in water from around -1.0 to around 5.0. In other embodiments, the substantially hydrophobic acid has a pK<sub>to</sub> in water from about 2.0 to about 5 0.
In certain embodiments, the substantially hydrophobic acid and the therapeutic agent mentioned above form a pair of hydrophobic ions in the therapeutic nanoparticle.
In some embodiments, the hydrophobic acid is a fatty acid.
For example, in certain embodiments, the fatty acid is a saturated fatty acid, which includes, without limitation, caproic acid, enanthic acid, caprylic acid, pelargromic acid, capric acid, undecanoic acid, lauric acid, tridecylic acid, myristic acid , pentadecyl acid, palmitic acid, margaric acid, stearic acid, nonadecyclic acid, arachidic acid, heneicosyl acid, behemic acid, tricosyclo acid, lignoceric acid, pentacosyl acid, cerotic acid, Heptacosyl acid, montámco acid, nonacosíhco acid, melisic acid, henatriacontilic acid, lacceroic acid, psilic acid, gedic acid, ceroplastic acid, hexatriacontilic acid, or combinations thereof. In other embodiments, the fatty acid is an omega-3 fatty acid, which includes, without limitation, hexadecatrienoic acid, alpha-linolenic acid, stearidomic acid, eicosatrienoic acid, eicosatetraenoic acid, eicosapentaenoic acid, heneicosapentaenoic acid, docosapentaenoic acid, acid docosahexaenoic acid, tetracosapentaenoic acid, tetracosahexaenoic acid, or combinations thereof In still other embodiments, the fatty acid is an omega-6 fatty acid, which includes, without limitation, linoleic acid, gamma-linolemic acid, eicosadienoic acid, dihomo-gamma-linolenic acid, arachidonic acid, docosadienoic acid, adrenic acid, docosapentaenoic acid, tetracosatetraenoic acid, tetracosapentaenoic acid, or combinations thereof In certain other embodiments, Fatty acid is an omega-9 fatty acid, which includes, without limitation, oleic acid, eicosenoic acid, Mead acid, erucic acid, nerve acid, or combinations thereof. In other embodiments, the fatty acid is a polyunsaturated fatty acid, which includes, without limitation, rumenic acid, α-calendic acid, β-caléndic acid, jaccharic acid, aeolostearic acid, β-eleostearic acid, cathalic acid, punic acid , rumelemic acid, α-parinic acid, β-parinic acid, bossa pentaenoic acid, pinollenic acid, podocarpic acid, or combinations thereof
In certain embodiments, the hydrophobic acid is a bile acid
For example, in some embodiments, the bile acid includes, without limitation, chenodeoxycholic acid, ursodeoxycholic acid, deoxycholic acid, hicolic acid, beta-muricolic acid, colic acid, lithocholic acid, an amino acid conjugated bile acid, or combinations thereof. . In some embodiments, the bile acid is colic acid. In other embodiments, the amino acid conjugated bile acid is a glycine conjugated bile acid, or a taurine conjugated bile acid
In certain embodiments, the hydrophobic acid includes without limitation, dioctyl sulfosuccinic acid, 1-hydroxy-2-naphthoic acid, dodecyl sulfuric acid, naphthalene-1,5-disulfonic acid, naphthalene-2-sulphomic acid, pamoic acid, undecanoic acid , or their combinations
In other embodiments, the hydrophobic acid has a molecular weight of between about 200 Da and about 800 Da
In certain embodiments, the hydrophobic acid is pamoic acid. In other embodiments, the hydrophobic acid is oleic acid. In some embodiments, the weight ratio of 1- (4 - {[4- (dimethylamino) piperidin1-yl ] carbonyl} phenyl) —3— [4— (4,6-dimorfolin-4-yl-1,3,5-triazin-2-yl) phenyl] urea an oleic acid is about 6Ί. In some embodiments, the weight ratio of 1— (4 - {[4— (d¡met¡lamino) p¡per¡din — 1-yl] carbonyl} phenyl) —3— [4— (4, 6— dimorfolin — 4-11-1,3,5 — triazin — 2 —l) phenol] urea to pamoic acid is about 1 8: 1.
In some embodiments, the therapeutic nanoparticle comprises about 1 to about 20 percent by weight of the therapeutic agent mentioned above. In other embodiments, the therapeutic nanoparticle comprises about 1 to about 15 percent by weight of the agent. Therapeutic mentioned above. In other embodiments, the therapeutic nanoparticle comprises about 2 to about 20 percent by weight of the therapeutic agent mentioned above. In other embodiments, the therapeutic nanoparticle comprises about 2 to about 15 percent by weight of the therapeutic agent mentioned above. Even in other embodiments, the therapeutic nanoparticle comprises about 4 to about 20 percent by weight of the therapeutic agent mentioned above. Even in other embodiments, the therapeutic nanoparticle comprises about 4 to about 1.5 percent by weight of the therapeutic agent mentioned above. In certain other embodiments, the therapeutic nanoparticle comprises about 5 to about 20 percent by weight of the therapeutic agent mentioned above. In certain other embodiments, the therapeutic nanoparticle comprises about 5 to about 10 percent by weight of the therapeutic agent mentioned above.
In some embodiments, the therapeutic nanoparticle substantially retains the therapeutic agent for at least 1 minute when placed in a phosphate regulator solution at 37 ° C. In certain embodiments, the therapeutic nanoparticle substantially immediately releases less than about 30% of the therapeutic agent when placed in a phosphate regulator solution at 37 ° C. In certain other embodiments, the therapeutic nanoparticle releases about 10 to about 45% of the therapeutic agent for about 1 hour when placed in a phosphate regulator solution at 37 ° C. In some embodiments, the therapeutic nanoparticle releases about 0.01 to about 15% of the therapeutic agent for about 4 hours when placed in a phosphate regulator solution at 37 ° C. In some embodiments, the therapeutic nanoparticle releases about 0.01 to about 15% of the therapeutic agent for about 10 hours when placed in a phosphate regulator solution at 37 ° C. In some embodiments, the therapeutic nanoparticle releases about 0 01 to about 25% of the therapeutic agent for about 20 hours when placed in a phosphate regulator solution at 37 ° C In some embodiments, The therapeutic nanoparticle releases about 1 to about 40% of the therapeutic agent for about 40 hours when placed in a phosphate regulator solution at 37 ° C. Even in other embodiments, the therapeutic nanoparticle has a release profile that is substantially the same as a release profile for a control nanoparticle that is substantially equal to the therapeutic nanoparticle, except that it does not contain a fatty acid or bile acid.
In certain embodiments, the poly (lactic) poly (ethylene) ghcol copolymer has a number average molecular weight fraction of poh (lactic acid) from about 0 6 to about 0 95 In certain other embodiments , the copolymer of poly (lactic acid) -poly (ethylene) ghcol has a fraction of average molecular weight in number of poh (lactic acid) from about 0 6 to about 0.8 Even in other embodiments, the poly (lactic) -poly (ethylene) glycol copolymer has a number average molecular weight fraction of poh (lactic) acid from about 0 75 to about 0.85 In other embodiments, the copolymer of poly ( lactic acid) —poly (ethylene) glycol has a fraction of average molecular weight in number of poh (lactic acid) from about 0.7 to about 0 9
In certain embodiments, the therapeutic nanoparticle comprises about 10 to about 25 percent by weight of poly (ethylene) ghcol. In certain other embodiments, the therapeutic nanoparticle comprises about 10 to about 20 percent by weight of poly (ethylene) glycol. Even in other embodiments, the therapeutic nanoparticle comprises about 15 to about 25 percent by weight. of poh (ethylene) ghcol In other embodiments, the therapeutic nanoparticle comprises about 20 to about 30 percent by weight of poly (ethylene) glycol
In certain embodiments, the poly (lactic) -poly (ethylene) glycol copolymer has a number average molecular weight of about
fifteen kDa at about 20 kDa poll (lactic acid) and a number average molecular weight of about 4 kDa at about 6 kDa of poh (ethylene) ghcol
In some embodiments, the therapeutic nanoparticle further comprises about 0.2 to about 30 percent by weight copolymer of poly (lactic) acid - poly (ethylene) glyccol functionalized with a targeting ligand. In other forms. of realization, The therapeutic nanoparticle further comprises about 0 2 to about 30 percent by weight of copolymer of poh (lactic) acid-co-poly (glycol) - poly (ethylene) glycol functionalized with a targeting ligand. In certain embodiments , the targeting ligand is covalently linked to poh (ethylene) glycol.
In certain embodiments, the hydrophobic acid is a pohelectrolyte 5 For example, in some embodiments, the pohelectrolyte includes, without limitation, poly (styrene sulfomic acid), polyacrylic acid, polymethacrylic acid, or combinations thereof
In certain embodiments, a therapeutic nanoparticle contemplated further comprises a mixture of two or more substantially hydrophobic acids For example, in some embodiments, a therapeutic nanoparticle contemplated comprises a mixture of two substantially hydrophobic acids, a mixture of three substantially hydrophobic acids , a mixture of four substantially hydrophobic acids, or a mixture of five substantially hydrophobic acids In some embodiments, the mixture of substantially hydrophobic acids comprises oleic acid and colic acid. In other embodiments, the mixture of two substantially hydrophobic acids are oleic acid and colic acid.
In another aspect, the therapeutic nanoparticle is prepared by means of the emulsion of a first organic phase comprising a first polymer, the aforementioned therapeutic agent, and a substantially hydrophobic acid, so as to form an emulsion phase; the shutdown of the emulsion phase, so as to form an off phase, and finally, the filtration of the off phase to recover the therapeutic nanoparticles
In some embodiments, the hydrophobic acid used in the preparation of the therapeutic nanoparticle is a fatty acid. For example, in certain embodiments, the fatty acid used in the preparation of the therapeutic nanoparticle is a saturated fatty acid that includes, without limitation, caproic acid, enanthic acid, caprylic acid, pelargonic acid, capric acid, undecanoic acid, acid. lauric, tridecylic acid, myristic acid, pentadecyl acid, palmitic acid, margaric acid, stearic acid, nonadecyl acid, arachidic acid, heneicosyl acid, behemic acid, trlcosyl acid, Lignoceric acid, pentacosyl acid, cerotic acid, heptacosyl acid, montanic acid, nonacosylic acid, melisic acid, henatriacontyl acid, lacceroic acid, psilic acid, gedic acid, ceroplast acid, hexatriacontyl acid, or combinations thereof. In other embodiments, the fatty acid used in the preparation of the therapeutic nanoparticle is an omega-3 fatty acid that includes, without limitation, hexadecatrienoic acid, alpha-linolemic acid, stearidonic acid, eicosatrienoic acid, eicosatetraenoic acid, eicosapentaenoic acid, heneicosapentaenoic acid, docosapentaenoic acid, docosahexaenoic acid, tetracosapentaenoic acid, tetracosahexaenoic acid, or combinations thereof
Even in other embodiments, the fatty acid used in the preparation of the therapeutic nanoparticle is an omega-6 fatty acid that includes, without limitation, linoleic acid, gamma-linolemic acid, eicosadienoic acid, dihomo-gamma-linolenic acid, acid arachidonic, docosadienoic acid, adrémic acid, docosapentaenoic acid, tetracosatetraenoic acid, tetracosapentaenoic acid, or combinations thereof In certain other embodiments, The fatty acid used in the preparation of the therapeutic nanoparticle is an omega-9 fatty acid that includes, without limitation, oleic acid, eicosenoic acid, Mead acid, erucic acid, nerve acid, or combinations thereof. In other embodiments, the acid Fat used in the preparation of the therapeutic nanoparticle is a polyunsaturated fatty acid that includes, without limitation, rumenic acid, α-caléndic acid, β-caléndic acid, jaccharic acid, α-elewestaric acid, β-eleoesteánco acid, catálpico acid, punic acid, rumelenic acid, a-parináric acid, βparinárico acid, bosseo pentaenoic acid, pylemolic acid, podocárpico acid, or combinations thereof
In certain embodiments, the hydrophobic acid used in the preparation of the therapeutic nanoparticle is a bile acid that includes, without limitation, chenodeoxycholic acid, ursodeoxycholic acid, deoxycholic acid, hicolic acid, beta-muricolic acid, colic acid, lithocolic acid, a bile acid conjugated with amino acid, or combinations thereof. In some embodiments, the bile acid is colic acid. In other embodiments, the amino acid conjugated bile acid is a glycine conjugated bile acid or a taurine conjugated bile acid.
In certain embodiments, the hydrophobic acid used in the preparation of the therapeutic nanoparticle includes, without limitation, dioctyl sulfosuccinic acid, 1-hydroxy-2-naphthoic acid, dodecylsulfuric acid, naphthalene-1,5-disulfonic acid, naphthalene acid. 2-sulfonic acid, pamoic acid, undecanoic acid, or combinations thereof.
In other embodiments, the hydrophobic acid used in the preparation of the therapeutic nanoparticle has a molecular weight of between about 200 Da and about 800 Da
In certain embodiments, the hydrophobic acid used in the preparation of the therapeutic nanoparticle is pamoic acid. In other embodiments, the hydrophobic acid used in the preparation of the therapeutic nanoparticle is oleic acid. In some embodiments, the weight ratio of 1- (4 - {[4- (dimethylamino) piperidin-1-yl] carbonyl} phenyl) -3- [4- (4,625 dimorpholin-4-yl-1,3,5-triazin —2 — yl) phenyl] urea an oleic acid used in the preparation of the therapeutic nanoparticle is about 6 1 In some embodiments, the weight ratio of 1- (4 - {[4- (dimethylamino) piperidin17)
1— 1] carboml} phenol) —3- [4- (4,6-dimorfolin-4-yl-1,3,5-triazin-2-yl) feml] urea a pamoic acid used in the preparation of The therapeutic nanoparticle is around 1 8Ί. In some embodiments, the weight ratio of 1 (4 - {[4- (dimethylamino) pperperdn-1-1] carbonyl} phenyl) -3- [4- (4, 6-dimorfohn-4-yl5 1,3,5-triazin-2-yl) phenyl] urea an oleic acid used in the preparation of the therapeutic nanoparticle is 6.1. In some embodiments, the weight ratio of 1- (4 - {[4- (dimethylamino) piperidin-1-yl] carbonii} phenyl) -3- [4- (4,6-dimorfohn-4-yl-1, 3,5-triazin-2-yl) phenyl] urea a pamoic acid used in the preparation of the therapeutic nanoparticle is 1.8.1
In certain embodiments, the first polymer used in the preparation of the therapeutic nanoparticle is copolymer of poly (lactic acid) -poh (ethylene) glycol. In other embodiments, the first polymer is copolymer of poly (lactic acid) co-poh (glycohco) -poly (ethylene) glycol acid In certain embodiments, the copolymer of poly (lactic acid) - poly (ethylene) glycol has a number average molecular weight fraction of poly (lactic acid) from about 0.6 to about 0 95 In certain other embodiments, the poh (lactic) -poly (ethylene) ghcol acid copolymer has a number average molecular weight fraction of poly (lactic acid) from about 0.6 to about 0 8 Even in other embodiments, the poly acid copolymer (Lactic) —poly (ethylene) ghcol has a number average molecular weight fraction of poly (lactic acid) from about 0.75 to about 0.85 In other embodiments, the copolymer of poh (lactic) acid - poh (ethylene) glycol has a fraction of average molecular weight in number of poly (lactic acid) from about 0 7 to about 0.9
In certain embodiments, the therapeutic nanoparticle is prepared using about 10 to about 25 weight percent poly (ethylene) glycol. In certain other embodiments, about 10 to about 20 percent by weight of poly (ethylene) ghcol is used. Even in other embodiments, about 15 to about 25 percent by weight of poly ( etllen) glycol. In other embodiments, they are used around
twenty at about 30 percent by weight pol¡ (ethylene) ghcol
In certain embodiments, the poly (lactic) -poly (ethylene) glycol copolymer used in the preparation of the therapeutic nanoparticle has a number average molecular weight of about 15 kDa to about 20 kDa of poly (lactic acid) ) and a number average molecular weight of about 4 kDa to about 6 kDa of poly (ethylene) glycol
In some embodiments, the therapeutic nanoparticle is prepared by the additional operation of about 0 2 to about 30 percent by weight copolymer of poly (ethylene) glycol poh (lactic acid) copolymer with a dilution ligand. In other embodiments, the therapeutic nanoparticle is prepared by means of the additional functionalization of about 0.2 to about 30 percent by weight copolymer of poly (lactic) acid co-poh (ghcóhco) poh (et¡) len) glycol with a directional ligand. In certain embodiments, the targeting ligand is covalently linked to poly (ethylene) ghcol
In certain embodiments, the hydrophobic acid used in the preparation of the therapeutic nanoparticle is a polyelectrolyte. For example, in some embodiments, the polyelectrolyte includes, without limitation, a pol¡ (styrene sulphomic acid), dichloric acid, polymetacrylic acid , or their combinations.
In certain embodiments, the therapeutic nanoparticle is prepared using a mixture of two or more substantially hydrophobic acids For example, in some embodiments, a mixture of two substantially hydrophobic acids, a mixture of three substantially hydrophobic acids, a mixture of four substantially hydrophobic acids, or a mixture of five substantially hydrophobic acids can be used to prepare a therapeutic nanoparticle. In some embodiments, the mixture of substantially hydrophobic acids comprises oleic acid and colic acid. In other embodiments, the mixture of two substantially hydrophobic acids are oleic acid and colic acid.
In certain embodiments, the therapeutic nanoparticle comprises the PLA-PEG polymer, and the PLA-PEG molar ratio is about 5 1
In some embodiments, a therapeutic nanoparticle is prepared by the process of combining a first organic phase with a first aqueous solution to form a second phase, the emulsion of the second phase in order to form an emulsion phase, where the emulsion phase comprises a first polymer, therapeutic agent, and a substantially hydrophobic acid, the quenching of the emulsion phase so as to form a muted phase, and filtration of the quenched phase in order to recover the therapeutic nanoparticles, where the therapeutic agent is 1- (4 - {[4 (dimethylamino) piperidln-1 — 1] carbonyl} phenol) —3— [ 4— (4,6-dimorfohn-4-yl-1,3,5-triazin-2-1l) phenol] urea, the first organic phase comprises the therapeutic agent and pamoic acid in a weight ratio of agent therapeutic to pamoic acid of about 11: 1, and PLA-PEG (in a molar ratio of 16 5) in a weight ratio of therapeutic agent to PLA-PEG of about 13, in an organic solvent comprising benzll alcohol and ethyl acetate in a weight ratio of benzyl alcohol to ethyl acetate of about 1 25, and the first aqueous solution comprises a polyoxyethylene (100) stearyl ether dissolved in benzyl alcohol in a weight ratio of 0.005 1, and the combination of the first organic phase and the first aqueous phase in a weight ratio of about 1: 5 to form a second phase; and the emulsion of the second phase formed therein and the quenching of the emulsion phase with citric acid, 0 1 M, in aqueous solution at pH 4.5, and the concentration of the resulting product
In other embodiments, the therapeutic nanoparticle comprises the aforementioned therapeutic agent or a pharmaceutically acceptable salt thereof and a polymer selected from the copolymer of diblock cop (lactic acid) - poly (ethylene) glycol or a diblock copolymer of poly (acid lactic acid co-glycolic) - poly (ethylene) glycol and its combinations.
In certain embodiments, the therapeutic nanoparticle has an additionally present targeting ligand, and the ligand is PLAPEG-GL, where GL has the following structure:
<img file="CU20160135A7_D0001.tif" />
In some embodiments, the therapeutic nanoparticle further comprises a solubiliser. In certain embodiments, the solubilizer is polysorbate 80 In other embodiments, the solubilizer is polloxyethylene (100) stearyl ether.
In certain embodiments, the therapeutic nanoparticle comprises the therapeutic agent 1 - (4 - {[4— (dimethylamino) piperidin-1 — l] carbonyl} phenyl) —3— [4— (4,6-dimorfohn-4 -il-1,3,5-triazin-2-¡l) fenll] urea, pamoic acid in a weight ratio of therapeutic agent to pamoic acid of about 1 8 1, PLAPEG (in a molar ratio of 16 5) in a weight ratio of therapeutic agent to PLA-PEG of about 1 3, and PLA-PEG-GL in a weight ratio of PLA-PEG to PLA-PEG-GL of about 44: 1. In other embodiments, the therapeutic nanoparticle additionally comprises a solubilizer. In certain of said embodiments, the solubilizer is polyoxyethylene (100) stearyl ether.
In certain embodiments, the therapeutic nanoparticle comprises therapeutic agent 1— (4 - {[4— (dimethylamino) piperidin-1-yl] carbonyl} phenyl) —3— [4— (4,6-dimorfolin-4— il — 1,3,5 — triazin — 2 — ¡l) phenyl] urea, oleic acid in a weight ratio of therapeutic agent to oleic acid of about 6 1, PLA-PEG (in a 16.5 molar ratio) in a weight ratio of therapeutic agent to PLA-PEG of about 1: 7, and PLA-PEG-GL in a weight ratio of PLA-PEG to PLA-PEG-GL of about 46: 1. In some embodiments, the therapeutic nanoparticle additionally comprises colic acid. In other embodiments, the therapeutic nanoparticle additionally comprises a solubilizer. In certain of said embodiments, the solubilizer is polysorbate 80.
In yet another aspect, a pharmaceutical composition is provided comprising a therapeutic nanoparticle described in this application and a pharmaceutically acceptable excipient. The pharmaceutical composition may comprise a plurality of therapeutic nanoparticles contemplated
In certain embodiments, the pharmaceutical composition further comprises a saccharide. For example, in some embodiments, the saccharide is a disaccharide selected from the group consisting of sucrose or trehalose, or one of mixtures thereof.
In certain embodiments, the pharmaceutical composition further comprises a cyclodextrin. For example, in some embodiments, cyclodextrin includes, without limitation, a-cyclodextrin, β-cyclodextrma, γ25 cyclodextrin, heptakis- (2,3,6-tri -O-benzyl) ^ - cyclodextrin, heptakis- (2,3,6tri-O-benzo¡IH3-cyclodextrin, or mixtures thereof.
In another aspect, a method of treating cancer is provided in a subject in need thereof. The method comprises the administration, to the subject, of a therapeutically effective amount of a pharmaceutical composition as described in the present application. In some embodiments, the cancer is chronic myelogenous leukemia. In certain embodiments, the cancer includes, without limitation, chronic myelomonocytic leukemia, hypereosinophilic syndrome, renal cell carcinoma, hepatocellular carcinoma, acute acute lymphoblastic leukemia for the Philadelphia chromosome, non-small cell lung cancer, pancreatic cancer, breast cancer, a solid tumor, mantle cell lymphoma, gastrointestinal stromal tumor, or head and neck cancer. In some embodiments, the cancer is breast cancer.
In yet another aspect, a method of treating a gastrointestinal stromal tumor is provided in a subject in need thereof by administering, to the subject, a therapeutically effective amount of a pharmaceutical composition as described in this application.
In still another aspect, a process for the preparation of a therapeutic nanoparticle is provided, the process comprises the combination of a first organic phase with a first aqueous solution to form a second phase, the emulsion of the second phase in order to form a phase of emulsion, where the emulsion phase comprises a first polymer, the aforementioned therapeutic agent, and a substantially hydrophobic acid, followed by shutting down the emulsion phase, so as to form an off phase, and finally, filtration of the off phase in order to recover the therapeutic nanoparticles.
In some embodiments, the process further comprises the combination of the aforementioned therapeutic agent and the substantially hydrophobic acid in the second phase before the emulsion of the second phase. In certain embodiments, the aforementioned therapeutic agent and the substantially hydrophobic acid they form a pair of hydrophobic ions before the emulsion of the second phase. In certain other embodiments, the aforementioned therapeutic agent and the substantially hydrophobic acid form a pair of hydrophobic ions during the emulsion of the second phase. In certain embodiments, the process further comprises the combination of the aforementioned therapeutic agent and the substantially hydrophobic acid in the second phase in substantially concurrent manner with the emulsion of the second phase For example, in some embodiments, the first organic phase it comprises the mentioned therapeutic agent, and the first aqueous solution comprises the substantially hydrophobic acid.
In some embodiments, the aforementioned therapeutic agent, when protonated, has a first pK<sub>to</sub>, the substantially hydrophobic acid has a second pK<sub>to</sub>, and the emulsion phase is quenched with an aqueous solution that has a pH equal to one unit of pK<sub>to </sub>between the first pK<sub>to</sub> and the second pK<sub>to</sub> For example, in certain embodiments, the off phase has a pH equal to one unit of pK<sub>to</sub> between the first pK<sub>to</sub> and the second pK<sub>to</sub>. In other embodiments, the aforementioned therapeutic agent, when protonated, has a first pK<sub>to</sub>, the substantially hydrophobic acid has a second pK<sub>to</sub>, and the first aqueous solution has a pH equal to one unit of pK<sub>to</sub> between the first pK<sub>to</sub> and the second pK<sub>to</sub>. In certain other embodiments, the pH is equal to one unit of pK<sub>to</sub> which is approximately equidistant between the first pK<sub>to</sub> and the second pK<sub>to</sub>.
In some embodiments, the aforementioned therapeutic agent, when protonated, has a first pK<sub>to</sub>, the substantially hydrophobic acid has a second pK<sub>to</sub>, and the emulsion phase is quenched with an aqueous solution that has a pH equal to one unit of pK<sub>to</sub> between the first pK<sub>to</sub> and the second pK<sub>to</sub> For example, in certain embodiments, the off phase has a pH equal to one unit of pK<sub>to</sub> between the first pK<sub>to</sub> and the second pK<sub>to</sub> In other embodiments, the aforementioned therapeutic agent, when protonated, has a first pK<sub>to</sub>, the substantially hydrophobic acid has a second pK<sub>to</sub>, and the first aqueous solution has a pH equal to one unit of pK<sub>to</sub> between the first pK<sub>to</sub> and the second pK<sub>to</sub>. In certain other embodiments, the pH is equal to one unit of pK<sub>to</sub> which is equidistant between the first pKa and the second pK<sub>to</sub>
In another aspect, a therapeutic nanoparticle is provided as described in the present application for use as a medicament in a subject.
In yet another aspect, a therapeutic nanoparticle is provided as described in the present application for use in the production of an antlprollferativ effect in a subject.
In yet another aspect, a therapeutic nanoparticle is provided as described in the present application for use in a subject as an anti-invasive agent in containment and / or treatment of a solid tumor disease.
In yet another aspect, the use of a therapeutic nanoparticle is provided as described in the present application in the prevention or treatment of cancer in a subject.
In yet another aspect, a therapeutic nanoparticle is provided as described in the present application for use in the prevention or treatment of cancer in a subject.
In yet another aspect, the use of a therapeutic nanoparticle 5 is described as described in the present application in the preparation of a medicament for the prevention or treatment of cancer in a subject.
In yet another aspect, the use of a therapeutic nanoparticle is provided as described in the present application for the production of an antiprohferatlvo effect in a subject.
In yet another aspect, the use of a therapeutic nanoparticle is provided as described in the present application in the preparation of a medicament for use in the production of an antiproliferative effect in a subject.
In yet another aspect, the use of a therapeutic nanoparticle is provided as described in the present application in the preparation of a medicament for use in a subject as an anti-invasive agent in the containment and / or treatment of a solid tumor disease.
In yet another aspect, a method is provided for the production of an antiprohferative effect on a subject in need of such treatment, which comprises the administration, to said subject, of an effective amount of a therapeutic nanoparticle as described in the present application.
In yet another aspect, a method is provided for the production of an anti-invasive effect by containment and / or treatment of a solid tumor disease in a subject in need of such treatment, which comprises administering, to said subject, a quantity Effective of a therapeutic nanoparticle as described in the present application.
In yet another aspect, a therapeutic nanoparticle is provided as described in the present application for use in the prevention or treatment of a solid tumor disease in a subject.
In yet another aspect, the use of a therapeutic nanoparticle 5 is described as described in the present application in the preparation of a medicament for use in the prevention or treatment of a solid tumor disease in a subject.
In yet another aspect, a method is provided for the prevention or treatment of a solid tumor disease in a subject in need of such treatment, which comprises the administration, to said subject, of an effective amount of a therapeutic nanoparticle as described in the present application
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a flow chart for an emulsion process for the formation of a disclosed nanoparticle.
Figures 2A and 2B show flow charts for a disclosed emulsion process.
Figure 3 depicts the in vitro nanoparticle release profiles of three formulations as described in this application identified below as Formulations A, B and C, respectively, where each comprises 1- (4 - {[4 (dimethylamino) piperidin — 1 —yl] carbonyl} phenyl) —3— [4— (4,6 — dimorfohn — 4 — il —- 1,3,5triazin-2-yl) feml] urea. Error bars Indicate the standard deviation
Water bath temperature = 37 ° C
Figure 4 represents the pharmacokinetics of the nanoparticles of three formulations as described in this application and identified as the
Formulations A, B and C, respectively, where each comprises 1- (4 {[4— (dimethylamino) plperidin-1-yl] carbonyl} phenyl) -3- [4- (4,6-dimorfolln-4-yl —1,3,5— trlazin-2-yl) fenll] urea, in Wistar Han rats; (a) shows the pharmacokinetics of the nanoparticle in relation to free therapeutic agent, while (b) shows the same information with the omitted free therapeutic agent.
Figure 5 represents the in vitro release profiles of the
Formulation A of the drug 1- (4 - {[4- (dlmethylamine) piperidin-1l] carbonyl} phenyl) —3— [4— (4,6 — dimorfolln — 4 — yl — 1,3,5 —Triazin — 2 — ¡) phenyl] urea Error bars indicate standard deviation Water bath temperature =
37 ° C
Figure 6 depicts the in vitro release profiles of Formulation C of the drug 1- (4 - {[4- (dimethylamino) piperidin-1l] carbonyl} phenyl) —3— [4— (4,6 — dimorfolln —4 — il — 1,3,5 — triazin — 2 — ¡) phenyl] urea using a citric acid regulated quench, pH 4 5.
Figure 7 represents a study of xenograft programming
MDAMB361 in female SCID / bg rats dosed with nanoparticles of Formulation B or 1— (4 — [4— (dimethylamino) pperperdin — 1 — l] carbonyl} phenyl) —3— [4— (4,6 — dimorfolln — 4 — il — 1,3,5 — triazin — 2 — il) phenol] urea (API (Active Pharmaceutical Ingredient, according to its acronym in English) naked), once every 8 days , compared to once every 4 days.
Figures 8A, 8B and 8C represent a study of MDAMB361 xenograft programming in female SCID / bg mice dosed with nanoparticles of Formulation A, B, or C or naked API, once every 8 days, compared with once every 4 days , and in vivo modulation studies of pS6 with nanoparticles of Formulation A, B or C or 1- (4 - {[4 (d? melamine) pperperine-1-1] carbon} phenyl) -3- [4- (4,6-dimorfohn-4-yl-1,3,5— triazin-2-yl) phenyl] urea (naked API) TA - therapeutic agent
Figure 9 depicts a tumor growth inhibition study of the WM266-4 model with female nu / nu mice treated with Formulation B or C nanoparticles or 1— (4 - {[4— (dimethylamino) piperidin-1 —Il] carbonyl} phenyl) -
3— [4— (4,6 — dlmorfolin — 4 — I — 1,3,5 — triazin — 2 — yl) phenyl] urea (naked API) TA = therapeutic agent.
Figure 10 depicts an analysis of glucose and insulin levels in mice or rats after treatment with nanoparticles of Formulation B or C or 1— (4 - {[4— (dimethylamino) piperine-1-yl ] carbonyl} phenyl) —3— [4— (4,6— d¡morfohn-4-yl-1,3,5-triazin-2-yl) feml] urea (bare API)
DETAILED DESCRIPTION
Definitions.
The definitions set forth in this application are intended to clarify terms used throughout the application.
The term of the / in this application means the entire application
Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by the person skilled in the art to which these inventions belong. While methods and materials similar or equivalent to those as described in this application may be used, in the implementation or evaluation of the inventions, suitable methods and materials are described below. Materials, methods and examples are illustrative only, and They are not intended to be limiting All publications, patents and other documents mentioned in this application are incorporated by reference in their entirety.
Each embodiment of the inventions as described in this application can be taken alone or in combination with any one or more other embodiments of the inventions.
Throughout this application, the word “a” or “a” shall be understood in a way that implies the inclusion of one or more members modified by the article “a” or “a”
Throughout this application, the word "comprise" or variations such as "comprises" or "comprising / n" shall be understood to imply the inclusion of an established member or group of Members, but not the exclusion of any other member or group of members
Throughout the application, when the compositions are described so that it has, that includes, or that comprises specific components, it is contemplated that the compositions may also consist essentially of, or consist of, the aforementioned components. Similarly, when the methods or processes are described so that they have, that include, or that comprise specific process steps, the processes can also consist essentially of, or consist of, the processing steps cited in addition, it should be understood that the order of the stages, or the order to perform certain actions, is immaterial as long as the compositions and methods as described in this application remain operable. two or more stages or actions can be conducted simultaneously
The term "or" as used in the present application should be understood to mean "and / or", unless the context clearly indicates otherwise.
The term "alkoxy" refers to an alkyl group, preferably, a lower alkyl group, which has a bound oxygen. Representative alkoxy groups include methoxy, ethoxy, propoxy, fer-butoxy and the like.
Furthermore, the term alkyl (or lower alkyl), as in the present application, is intended to include both unsubstituted and substituted alkyls, where the latter refers to alkyl moieties that have substituents that replace a hydrogen in one or more carbons from the hydrocarbon spin. Such substituents, if not otherwise specified, may include, for example, a halogen, a hydroxy, a carbonyl (such as a carboxyl, an alkoxycarbonyl, a formyl, or an acyl), a thiocarbomlo (such as a thioester, a thioacetate, or a thioformate), an alkoxy, a phosphoryl, a phosphate, a phosphonate, a phosflinate, an amino, an amido, an amidine, an imine, a cyano, a nitro, an azido, a sulfhydryl, an alkylthio, a sulfate, a sulphonate, a sulfamoyl, a sulfonamido, a sulfonyl, a heterocyclyl, an aralkyl, or an aromatic moiety Those skilled in the art will understand that substituted moieties in the hydrocarbon chain may themselves be substituted, if appropriate. For example, the substituents of a substituted alkyl may include substituted and unsubstituted forms of amino, azido, imlno, amido, phosphoryl (which includes phosphonate and phosphinate), sulfonyl (which includes sulfate, sulfonamido, sulfamoyl and sulfonate), silyl, like ethers, alkylthyl, carbonyls (including ketones, aldehydes, carboxylates and esters), -CF<sub>3</sub>, -CN and the like
The term "C<sub>x</sub>_, ”When used in conjunction with a chemical moiety, such as acyl, acyloxy, alkyl, alkenyl, alkynyl or alkoxy, is intended to include groups containing xai carbons in the chain. For example, the term" Cx_, "alkyl" refers to saturated, substituted or unsubstituted hydrocarbon groups, including straight chain alkyl groups and branched alkyl groups containing xai carbons in the chain, which include haloalkyl groups such as trifluoromethyl and 2,2,2-trifluoroethyl, etc. C<sub>or</sub> alkyl indicates a hydrogen where the group is in a terminal position, a bond, if internal
The term "amide", as used in the present application, refers to a group
<img file="CU20160135A7_D0002.tif" />
where every R<sup>30</sup> independently represents a hydrogen or hydrocarbon group, or two R<sup>30</sup> they are taken together with the N atom to which they are attached to complete a heterocycle having 4 to 12 atoms in the ring structure.
The term "aryl" as used in the present application includes aromatic groups of a single ring, substituted or unsubstituted, where each atom of the ring is carbon Preferably, the ring is a 5 to 7 member ring, more preferably, a ring of 6 members. The term "aryl" also includes polycyclic ring systems that have two or more cyclic rings in which two or more carbons or heteroatoms are common to two adjacent rings, where at least one of the rings is aromatic, for example, the other Cyclic rings can be cycloalkyl, cycloalkenyl, cycloalkyl, aryl, heteroaryl, and / or heterocyclyl.
The terms "arylalkyl" or "aralkyl," as used in the present application, refer to an alkyl group substituted with an aryl group.
The term "azido" is recognized in the art, and refers to the group —N = N<sup>+</sup>= N ".
The term "carboxy", as used in the present application, refers to a group represented by the formula -CO2H.
The terms "halo" and "halogen" as used herein mean halogen and include chlorine, fluorine, bromine and iodine.
The term "hydrocarbyl," as used in the present application, refers to a group that is linked through a carbon atom that does not have a substituent = O or = S, and usually has at least one carbon bond. -hydrogen and a primarily carbon backbone, although it may optionally include heteroatoms. Therefore, the groups such as methyl, ethoxyethyl, 2-pyridyl and trifluoromethyl are considered hydrocarbyl for the purposes of this application, although substituents such as acetyl (which has a substituent = O in the carbon bond) and ethoxy ( it is bound through oxygen, not carbon) they are not. Hydrocarbyl groups include, without limitation, aryl, carbocycle, heterocyclyl, alkyl, alkenyl, alkynyl and combinations thereof.
The term "hydroxy", as used in the present application, refers to a group -OH.
The term "substituted" refers to residues that have substituents that replace a hydrogen in one or more carbons of the backbone. It will be understood that the "substitution" or "substituted with" includes the implicit condition that said substitution is in accordance with the allowed valence of the substituted atom and the substituent, and that the substitution achieves a stable compound, for example, which does not spontaneously undergo the transformation, such as by redisposting, cycling, elimination, etc. As used in the present application, the term "substituted" is contemplated so as to include all allowable substituents of organic compounds. In a broad aspect, permissible substituents include acyclic and cyclic, branched and unbranched, carbocyclic and heterocyclic, aromatic and non-aromatic substituents of organic compounds. The permissible substituents may be one or more, the same or different for the appropriate organic compounds. For the purposes of this application, heteroatoms such as nitrogen may have hydrogen substituents and / or any permissible substituent of organic compounds, as described in this request, which satisfy the valences of the heteroatoms.
Substituents may include any substituent as described in this application, for example, without limitation, a halogen, a hydroxyl, a carbonite (such as a carboxyl, an alkoxycarbonyl, a formula, or an acyl), a thiocarbomlo (such as a thioester, a thioacetate, or a thioformate), an alkoxy, a phosphorite, a phosphate, a phosphonate, a phosphinate, an amino, an amido, an amidine, an imine, a cyano, a nitro, an azido, a sulfhydryl, a alkylthio, a sulfate, a sulphonate, a sulfamoyl, a sulfonamido, a sulfomlo, a heterocyclyl, an aralkyl, or an aromatic moiety. Those skilled in the art will understand that the substituents may themselves be substituted, if appropriate. Unless specifically established as "unsubstituted", it is understood that references to chemical moieties in this application include substituted variants. For example, the reference to an "aryl" moiety or group implicitly includes both substituted and unsubstituted variants.
The terms "optional" or "opclonally" mean that the circumstance subsequently described may or may not occur, so that the request includes cases where the circumstance occurs, and cases where it does not occur. For example, the phrase "opclonally substituted" means that a non-hydrogen substituent may or may not be present in a given atom, and consequently, the application includes structures where a non-hydrogen substituent is present and structures where a non-hydrogen substituent is not present.
The terms "healthy" and "normal" are used interchangeably in this application to refer to a subject or a particular tissue or cell that is devoid (at least the detection limit) of a disease
Unless otherwise indicated, the term "basic therapeutic agent 5" or "therapeutic agent" refers to therapeutic agent 1— (4 - {[4— (dimethylamino) piperidin-1 — 1] carbonyl} phenyl) - 3— [4— (4,6-dimorfoim-4-yl-1,3,5triazln-2-l) phenol] urea or a pharmaceutically acceptable salt thereof It has the structure set forth below.
<img file="CU20160135A7_D0003.tif" />
<img file="CU20160135A7_D0004.tif" />
It is described in United States Patent No. 8,039 469, the contents of which are incorporated by reference. The calculated log of the salt octanol partition coefficient (clogP) - 1.24 (calculated partition coefficient) The logD, the distribution constant, at pH 6 5 = 0.212, while logD at pH 7 4 = 1 08. As indicated above, it is a base It is a therapeutic agent that contains protonable nitrogen. As used in the present application, a "protonable nitrogen-containing therapeutic agent" includes any pharmaceutically active agent that contains at least one nitrogen-containing functional group that is capable of being protonated. In other words, the therapeutic agent has an atom of nitrogen over this, having a single pair of electrons that could potentially accept a proton. pKa refers to the acid dissociation constant on a logarithmic scale of the corresponding protonated form of the therapeutic agent. In other words, if a proton (H +) occurs in the atoms. of nitrogen where there is an indicated arrow, the therapeutic agent will have the pKa indicated below
ACD- 5.85 t 6.7
<img file="CU20160135A7_D0005.tif" />
Ύ
ACD-9.06
The pKa information for nitrogen plus 5 basic (lower) and one less basic nitrogen, but still protonable (higher) is shown above.
ACD is a number calculated using conventional techniques known in the art, such as those described in the reference of Liao CZ, Nicklaus MC. Comparison of nine programs predicting pK (a) values of pharmaceutical substances ”J Chem. Inform. Model 49 (12): 2801-2812, 2009. It should be understood that the therapeutic agent pKa refers to its protonated form. The therapeutic agent of the present invention possesses one or more chiral centers, and the present invention includes each enantiomer separated from said compounds, as well as mixtures of enantiomers when there are multiple chiral centers, the invention includes each combination, as well as its mixtures. All chiral, diastereomeric and racemic forms of a structure are proposed, unless the specific stereochemistry or Isomeric form is specifically indicated It is well known in the art how to prepare optically active forms, such as by solving racemic forms or by synthesis from optically active starting materials
The term "substantially", when used in reference to a compound such as "hydrophobic acid", refers to the compound present in at least 1% by weight, or refers to a hydrophobic acid with a logP greater than 2. A Hydrophobic acid with a logP greater than 2 has a greater tendency to partition in the organic phase.
The term "hydrophobic acid" refers to a lipophilic acid having a log of
-7 or higher, that is, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
12, 13, 14, 15, 16.
The nanoparticles as described in this application may also contain pharmaceutically acceptable salts of the therapeutic agent. Representative "pharmaceutically acceptable salts" include, without limitation, water-soluble and water-insoluble salts, such as acetate, aluminum, ammonate (4,4-diaminoestylbenzene-2,2-disulfonate), benzathine (N, Ndlbenzylethylenediamine salts) ), benzenesulfonate, benzoate, bicarbonate, bismuth, bisulfate, bltartrate, borate, bromide, butlrate, calcium, calcium edetate, camsylate (camphorsulfonate), carbonate, chloride, choline, citrate, clavulariate, diethanolamine, dichlorohydrate, diphosphate, edetate, edisilate (camphor sulfulfonate), enamel (ethanesulfonate), ethylenedlamine, fumarate, gluceptate (glucoheptonate), gluconate, glucuronate, glutamate, hexafluorphosphate, hexylresorcinate, hydrabamine (N, Ν'-bis) ethyl (bis) -a (bis) , hydrobromide, hydrochloride, hydroxynaphthoate, 1-hydroxy-2-naphthoate, 3-hydroxy-2-naphthoate, iodide, isothionate (2-hydroxethanesulphonate), lactate, lactobionate, laurate, lauryl sulfate, lithium, magnesium, malate maleate mandelate meglumine (1-deoxy-1- (methylamino) 5 D-glucitol), mesylate, methyl bromide, methylnitrate, methyl sulfate, mucate, napsylate, nitrate, N-methylglucamine ammonium salt, oleate, oxalate, palmitate, pamoate (4 , 4'-metllenbis-3-hydroxy-2-naphthoate, or embonate), pantothenate, phosphate, picrate, polygalacturonate, potassium, propionate, p-toluenesulfonate, sahcylate, sodium, stearate, subacetate, succinate, sulfate, sulphosalicylate, suramate, tanato, tartrate, teoclate (8-chloro-3,7-dihydro-1,3-dimethyl-1H-purine-2,6dione), triethiodide, tromethamine (2-amine-2- (hydroxymethyl) -1,3-propanediol) valerate and zinc
When used in this application below, unless otherwise indicated,% is% by weight.
Polymeric nanoparticles that include the basic therapeutic agent and methods for the elaboration and use of said therapeutic nanoparticles are described in this application.
In some embodiments, the inclusion (i.e., softening) of a substantially hydrophobic acid (for example, a fatty acid and / or a billiard acid) in a disclosed nanoparticle, and / or its inclusion in a nanoparticle preparation process It can achieve nanoparticles that include enhanced drug loading. Additionally, in certain embodiments, the nanoparticles that include and / or are prepared in the presence of the hydrophobic acid may exhibit improved controlled release properties. For example, the disclosed nanoparticles may release the therapeutic agent more slowly, as compared to prepared nanoparticles. in the absence of hydrophobic acid
Without wishing to limit itself to any theory, it is believed that disclosed nanoparticle formulations that include a hydrophobic acid (e.g., fatty acid and / or bile acid) have significantly improved formulation properties (e.g., drug loading and / or profile release) through the formation of a pair of hydrophobic ions (HIP), between the therapeutic agent on the single pair of electrons in one or more of the nitrogen atoms on the therapeutic agent indicated above, for example, on the amine moiety and an acid. As used in the present application, a HIP is a pair of oppositely charged ions held together by the Coulomb attraction. In addition, without wishing to be limited to any theory, in some embodiments, HIP can be used to increase the hydrophobicity of the therapeutic agent. that contains lomzables groups (for example, amines) When the therapeutic agent has greater hydrophobicity, this is beneficial for nanoparticle formulations, since the formation of HIP is achieved, which can provide greater solubility of the therapeutic agent in organic solvents. The formation of HIP, contemplated in this application, can produce nanoparticles that have, for example, greater drug loading. The slower release of the therapeutic agent from the nanoparticles can also occur, for example, in some embodiments, due to a decrease. in the solubility of the therapeutic agent in aqueous solution. Additionally, the complexing of the therapeutic agent with large hydrophobic contralons may slow the diffusion of the therapeutic agent within the pohmeric matrix. Conveniently, the formation of HIP occurs without the need for covalent conjugation of the hydrophobic group to the therapeutic agent.
Without wishing to limit itself to any theory, it is believed that the concentration of HIP affects the drug load and the release rate of the nanoparticles contemplated. For example, the concentration of HIP can be increased by increasing the magnitude of the difference between pK<sub>to </sub>of the protonated form of the therapeutic agent and pK<sub>to</sub> of the hydrophobic acid, as described in more detail below. Furthermore, without wishing to limit itself to any theory, it is believed that the conditions for ion pair formation affect drug loading and the release rate of the contemplated nanoparticles.
The nanoparticles disclosed in this application include one, two, three or more biocompatible and / or biodegradable polymers. For example, a contemplated nanoparticle may include about 35 to about 99.75 percent by weight in some embodiments; about 50 to about 99 75 percent by weight, in some other embodiments, about 50 to about 99.5 percent by weight, in some embodiments, about 50 to about 99 percent by weight even in other embodiments, about 50 to about 98 percent by weight in additional embodiments; about 50 to about 97 percent by weight in still other embodiments; about 50 to about 96 percent by weight in additional embodiments, about 50 to about 95 percent by weight in other embodiments, about
fifty at about 94 percent by weight even in other embodiments, about 50 to about 93 percent by weight in other embodiments; about 50 to about 92 percent by weight even in other embodiments, about 50 to about 91 percent by weight, in some embodiments, about 50 to about 90 percent by weight; in some embodiments, about 50 to about 85 percent by weight, in some embodiments, about 60 to about 85 percent by weight; in some embodiments, about 65 to about 85 percent by weight, and in some embodiments, about 50 to about 80 percent by weight, of one or more block copolymers that include a biodegradable polymer and poly (ethylene glycol) (PEG), and about 0 to about 50 percent by weight of a biodegradable homopolymer
In some embodiments, a contemplated nanoparticle may include 35 to 99.75 percent by weight in some embodiments, 50 to
99.75 percent by weight, in some other embodiments, 50 to 99 5 percent by weight, in some embodiments, 50 to 99 percent by weight even in other embodiments; 50 to 98 percent by weight in additional embodiments; 50 to 97 percent by weight in still other embodiments; fifty at 96 percent by weight in additional embodiments, 50 to 95 percent by weight in other embodiments, 50 to 94 percent by weight even in other embodiments, 50 to 93 percent by weight in other embodiments realization; fifty at 92 percent by weight even in other embodiments, 50 to 91 percent by weight, in some embodiments, 50 to 90 percent by weight, in some embodiments, 50 to 85 percent by weight, in some embodiments, 60 to 85 percent by weight, in some embodiments, 65 to 85 percent by weight; and in some embodiments, 50 to 80 percent by weight of one or more block copolymers that include a biodegradable polymer and poly (ethylene glycol) (PEG), and 0 to 50 percent by weight of a biodegradable homopolymer.
In some embodiments, the disclosed nanoparticles may include about 0.2 to about 35 percent by weight, about 0.2 to about 25 percent by weight, about 0.2 to about 20 percent by weight, about 0 2 to about 10 percent by weight, about 0 2 to about 5 percent by weight, about 0 5 to about 5 percent by weight, about 0 75 to about 5 percent by weight, about 1 to about 5 percent by weight, about 2 to about 5 percent by weight, about 3 to about 5 percent by weight, about 1 to about 20 percent by weight, about 2 to about 20 percent by weight, about 3 to about 20 percent by weight, about 5 to about 20 percent by weight, about 1 to about 15 percent by weight, about 2 to about 15 percent by weight, about 3 to about 15 percent by weight, about 4 to about 15 percent by weight, about 5 to about 15 percent by weight, about 1 to about 10 percent by weight, about 2 to about 10 percent by weight, about 3 to about 10 percent by weight, about 4 to about 10 percent by weight, about 5 to about 10 percent by weight, about 10 to about 30 percent by weight, or about 15 to about 25 percent by weight of the therapeutic agent. In some embodiments, the disclosed nanoparticles include about 0 2, about 0 3, about 0 4, about 0 5, about 0 6, about 0.7, about 0.8, about 0 9, about 1, about 2, about 3, about 4, about 5, about 6, about 7, about 8, about
9, about 10, about 11, about 12, about 13, about 14, about 15, about 16, about 17, about 18, about 19, about 20, about 21, about 22, about 23, about 24, about 25, about 26, about 27, about 28, about 29, or about 30 percent by weight of the therapeutic agent.
In certain embodiments, the disclosed nanoparticles may include 0 2 to 35 percent by weight, 0.2 to 25 percent by weight, 0 2 to 20 percent by weight, 0 2 to 10 percent by weight, 0.2 to 5 percent weight percent, 0 5 to 5 percent by weight, 0.75 to 5 percent by weight, 1 to 5 percent by weight, 2 to 5 percent by weight, 3 to 5 percent by weight, 1 to 20 percent by weight, 2 to 20 percent by weight, 3 to 20 percent by weight, 5 to 20 percent by weight, 1 to 15 percent by weight, two at 15 percent by weight, 3 to 15 percent by weight, 4 to 15 percent by weight, 5 to 15 percent by weight, 1 to 10 percent by weight, 2 to 10 percent by weight, 3 to 10 percent by weight, 4 to 10 percent by weight, 5 to 10 percent by weight, 10 to 30 percent by weight, or 15 to 25 percent by weight of the therapeutic agent. In some embodiments, the disclosed nanoparticles include 0 2, 0.3, 0 4, 0 5, 0.6, 0.7, 0 8, 0 9, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 , 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, or 30 percent by weight of therapeutic agent.
In certain embodiments, the disclosed nanoparticles comprise a hydrophobic acid (for example, a fatty acid and / or bile acid) and / or are prepared by a process that includes a hydrophobic acid. Such nanoparticles may have a higher drug load than nanoparticles prepared by a process without a hydrophobic acid For example, drug loading (for example, by weight) of the disclosed nanoparticles prepared by a process comprising the hydrophobic acid may be between about 2 times and about 10 times higher, or even more, than the disclosed nanoparticles prepared by a process without the hydrophobic acid In some forms of embodiment, the drug loading (by weight) of the disclosed nanoparticles prepared by a first process comprising the hydrophobic acid can be at least about 2 times higher, at least about 3 times higher, at least about 4 times higher, at least about 5 times higher, or at least about 10 times higher than the disclosed nanoparticles prepared by a second process, where the second process is identical to the first process, except that the second process does not include hldrophobic acid
In certain embodiments, the drug loading (for example, by weight) of the disclosed nanoparticles prepared by a process comprising the hydrophobic acid may be 2 to 10 times higher, or even more, than the disclosed nanoparticles prepared by a process without hldrophobic acid In some embodiments, The drug load (by weight) of the disclosed nanoparticles prepared by a first process comprising hldrophobic acid may be at least 2 times higher, at least 3 times higher, at least 4 times higher, so at least 5 times higher, or at least 10 times higher than the disclosed nanoparticles prepared by a second process, where the second process is identical to the first process, except that the second process does not include hldrophobic acid.
Any suitable hydrophobic acid is contemplated. In some embodiments, the hydrophobic acid may be a carboxylic acid (for example, a monocarboxylic acid, a dicarboxylic acid, tricarboxylic acid, or the like), a sulfinic acid, a sultanic acid, or a sulphomic acid. In some cases, a Hldrophobic acid contemplated may include a mixture of two or more acids. For example, in certain embodiments, the hydrophobic acid may comprise a mixture of two substantially hydrophobic acids, in some embodiments, a mixture of three substantially hydrophobic acids, in some embodiments, a mixture of four substantially hydrophobic acids, or in some embodiments, five substantially hydrophobic acids. In some embodiments, the mixture of substantially hydrophobic acids comprises oleic acid and colic acid. In other embodiments, the mixture of two hydrophobic acids is oleic acid and colic acid.
In some cases, a salt of a hydrophobic acid can be used in a formulation
For example, a disclosed carboxylic acid may be an aliphatic carboxylic acid (for example, a carboxylic acid having a cyclic or acyclic hydrocarbon chain, branched or unbranched) The disclosed carboxylic acids, in some embodiments, may be substituted with one or more functional groups that include, without limitation, halogen (ie, F, Cl, Br, and I), suiphonyl, nitro and oxo In certain embodiments, a disclosed carboxylic acid may be unsubstituted
Examples of carboxylic acids may include a substituted or unsubstituted fatty acid (eg, C fatty acid<sub>6</sub>-C<sub>5</sub>o) In some cases, the fatty acid may be a C10-C20 fatty acid · In other cases, the fatty acid may be a C15-C20 fatty acid The fatty acid in some cases may be saturated In other embodiments, the fatty acid can be unsaturated
For example, the fatty acid can be a monounsaturated fatty acid or a polyunsaturated fatty acid. In some embodiments, a double bond of an unsaturated fatty acid group may occur in the cis conformation. In some embodiments, a double bond of an unsaturated fatty acid may occur in the trans configuration. Unsaturated fatty acids include, without limitation, omega-3, omega-6, or omega-9 fatty acids.
Non-limiting examples of saturated fatty acids include caproic acid, enanthic acid, caprihco acid, pelargonic acid, capric acid, undecanoic acid, lauric acid, tridecanoic acid, myristic acid, pentadecanoic acid, palmitic acid, margaric acid, stearic acid, nonadecanoic acid, arachidic acid, heneicosanoic acid, behenic acid, tricosanoic acid, lignoceric acid, pentacosanoic acid, cerotic acid, heptacosanoic acid, montanic acid, nonacosanoic acid, melisic acid, henatriacontanoic acid, lacceroic acid, psilic acid, gedic acid, ceroplastic acid, hexatriacontanoic acid, or combinations thereof
Non-limiting examples of unsaturated fatty acids include hexadecatrienoic acid, alpha-hnolémic acid, stearidomic acid, eicosatrienoic acid, eicosatetraenoic acid, eicosapentaenoic acid, heneicosapentaenoic acid, docosapentaenoic acid, docosahexaenoic acid, tetracosapene-acidic acid, tetracosapene-acidic acid, tetracosapene-acidic acid, tetracosapene-acidic acid, tetracosapene-acidic acid, tetracosapeneic acid linolenic acid, eicosadienoic acid, dihomo-gamma-linolemic acid, arachidonic acid, docosadienoic acid, adremic acid, docosapentaenoic acid, tetracosatetraenoic acid, tetracosapentaenoic acid, oleic acid (pK<sub>to</sub> = ~ 4-5, logP = 6 78), eicosenoic acid, Mead acid, erucic acid, nerve acid, rumenic acid, α-caléndic acid, β-calendic acid, jaccharic acid, α-eleostearic acid, β-eleostearic acid, catálpico acid , punic acid, rumelenic acid, a-parinic acid, βparinic acid, bosseo pentaenoic acid, pinollenic acid, podocarpic acid, palmitoleic acid, vaccidic acid, gadoleic acid, erucic acid, or combinations thereof
Other non-limiting examples of hydrophobic acids include aromatic acids such as 1-hldroxy-2-naphtholco acid (i.e. xinafoic acid) (pK<sub>to</sub> = ~ 2-3, log P = 2 97), naphthalene-1,5-disulfomic acid (pK<sub>to</sub> = -2, logP = 1 3), naphthalene-2-sulfonic acid (pK<sub>to</sub> = -1.8; logP = 2.1), pamolco acid (pK<sub>to </sub>= 2 4, logP = 6 17), cinnamic acid, femlacetic acid, (±) -camphor-10sulfomic acid, dodecylbenzenesulfonic acid (pK<sub>to</sub> = -1 8; logP = 6 6), or combinations thereof Other non-limiting examples of hydrophobic acids include dodecylsulfuric acid (pK<sub>to</sub> =
-0 09, logP = 4.5), dioctyl sulfosuccinic acid (i.e. docusate acid) (pK<sub>to</sub> =
-0.8, logP = 5.2), dioleoyl phosphatidic acid (pK<sub>to</sub> = ~ 2), or Vitamin D<sub>3</sub>-sulfate (pK<sub>to</sub> = -1.5).
In some embodiments, the hydrophobic acid may be a bile acid Non-limiting examples of bile acids include chenodeoxycholic acid, ursodeoxycholic acid, deoxycholic acid (pK<sub>to</sub> = 4 65, logP = 3 79), hicolic acid, beta-muricolic acid, colic acid (pK<sub>to</sub> = ~ 4 5, logP 2 48), taurocolic acid, cholesteryl sulfate acid (pK<sub>to</sub> = -1.4), htocóhco acid, an amino acid conjugated bile acid, or combinations thereof An amino acid conjugated bile acid can be conjugated with any suitable amino acid In some embodiments, the amino acid conjugated bile acid is a glycine conjugated bile acid or a bile acid conjugated with taurine
In certain cases, the hydrophobic acid may be a pohelectrolyte. For example, the pohelectrolyte can be a pohsulfomic acid (for example, poly (styrene sulfomic acid) or dextran sulfate) or a pohcarboxylic acid (for example, polyacrylic acid or pohmetacrylic acid).
In some cases, a contemplated hydrophobic acid may have a molecular weight of less than about 1000 Da, in some embodiments, less than about 500 Da, in some embodiments, less than about 400 Da, in some forms of embodiment, less than about 300 Da, in some embodiments, less than about 250 Da, in some embodiments, less than about 200 Da, and in some embodiments, less than about 150 Da. In some cases, the hydrophobic acid may have a molecular weight of between about
100 Da and about 1000 Da, in some embodiments, between about 200 Da and about 800 Da, in some embodiments, between about 200 Da and about 600 Da, in some embodiments, between about 100 Da and about 300 Da, in some embodiments, between about 200 Da and about 400 Da, in some embodiments, between about 300 Da and about 500 Da, and in some embodiments, between about 300 Da and about 1000 Da In certain embodiments, a contemplated acid may have a molecular weight greater than about 200 kDa, in some embodiments, greater than about 300 Da, in some embodiments, greater than about 400 Da, and in some embodiments, greater than about 500 Da. In certain embodiments, the
The release rate of a therapeutic agent from a nanoparticle can be decreased by increasing the molecular weight of the hydrophobic acid used in the nanoparticle formulation.
In some cases, a contemplated hydrophobic acid may have a molecular weight of less than 1000 Da, in some embodiments, less than
500 It gives, in some embodiments, less than 400 Da, in some embodiments, less than 300 Da, in some embodiments, less than 250 Da, in some embodiments, less than 200 Da, and in some forms of embodiment, less than 150 Da In some cases, the hydrophobic acid may have a molecular weight of between 100 Da and 1000 Da, in some embodiments, between 200 Da and 800 Da, in some embodiments, between 200 Da and 600 Da, in some embodiments, between 100 Da and 300 Da, in some embodiments, between 200 Da and 400 Da, in some embodiments, between 300 Da and 500 Da, and in some embodiments, between 300 Da and 1000 Da. In certain embodiments, a contemplated acid may have a molecular weight greater than 200 kDa, in some embodiments, greater than 300 Da, in some embodiments, greater than 400 Da, and in some embodiments, greater than 500 Da
In some embodiments, a hydrophobic acid may be selected, at least in part, based on the concentration of the acid. For example, the hydrophobic acid may have an acid-in-water dissociation constant (pK<sub>to</sub>) from about -5 to about 7, in some embodiments, about -3 to about 5, in some embodiments, about -3 to about 4, in some embodiments, about - 3 to about 3 5, in some embodiments, about -3 to about 3, in some embodiments, about -3 to about 2, in some embodiments, about -3 to about 1, in some embodiments, about -3 to about 0 5, in some embodiments, about -1 0 to about 5.0, in some embodiments, about -0 5 to about 0.5, in some embodiments, about 1 to about 7, in some embodiments, about 2 to about 7, in some embodiments, about 2.0 to about 5 0, in some embodiments, about 3 to about 7, in some embodiments, about 4 to about 6, in some embodiments, about 4 to about 5.5, in some embodiments, about 4 to about 5, and in some embodiments, about 4-5 to about 5, determined at 25 ° C In some embodiments, the acid may have a pK<sub>to</sub> from less than about 7, less than about 5, less than about 3.5, less than about 3, less than about 2, less than about 1, or less than about 0, determined at 25 ° C.
In some embodiments, the hydrophobic acid may have an acid dissociation constant in water (pK<sub>to</sub>) from -5 to 7, in some embodiments, -3 to 5, in some embodiments, -3 to 4, in some embodiments, -3 to 3.5, in some embodiments, -3 to 3 , in some embodiments, -3 to 2, in some embodiments, -3 to 1, in some embodiments, -3 to 0.5, in some embodiments, -10 to 5 0, in some embodiments embodiment, -0 5 to 0 5, in some embodiments, 1 to 7, in some embodiments, 2 to 7, in some embodiments, 2.0 to 5 0, in some embodiments, 3 to 7, in some embodiments, 4 to 6, in some embodiments, 4 to 5.5, in some embodiments, 4 to 5 , and in some embodiments, 4 5 to 5, determined at 25 ° C In some embodiments, the acid may have a pK<sub>to</sub> less than 7, less than 5, less than
3.5, less than 3, less than 2, less than 1, or less than 0, determined at 25 ° C
In certain embodiments, the hydrophobic acid can be selected, at least in part, based on the difference between pK<sub>to</sub> of hydrophobic acid and pK<sub>to</sub> of the protonated therapeutic agent For example, in some cases, the difference between pK<sub>to</sub> of hydrophobic acid and pK<sub>to</sub> of the protonated therapeutic agent can be between about 1 unit of pK<sub>to</sub> and around 15 pK units<sub>to</sub>, in some embodiments, enter about 1 unit of pK<sub>to</sub> and about 10 pK units<sub>to</sub>, in some embodiments, enter about 1 unit of pK<sub>to</sub> and about 5 pK units<sub>to</sub>, in some embodiments, enter about 1 unit of pK<sub>to</sub> and about 3 pK units<sub>to</sub>, in some embodiments, enter about 1 unit of pK<sub>to</sub> and about 2 pK units<sub>to</sub>, in some embodiments, between about 2 pK units<sub>to</sub> and about 15 pK units<sub>to</sub>, in some embodiments, between about 2 pK units<sub>to</sub> and about 10 pK units<sub>to</sub>, in some embodiments, between about 2 pK units<sub>to</sub> and about 5 pK units<sub>to</sub>, in some embodiments, between about 2 pKa units and about 3 pKa units, in some embodiments, between about 3 pKa units and about 15 pK<sub>to </sub>units, in some embodiments, between about 3 pKa units and about 10 pKa units, in some embodiments, between about 3 pKa units and about 5 pKa units, in some embodiments, between about 4 pKa units and about 15 pKa units, in some embodiments, between about 4 pKa units and about 10 pKa units, in some embodiments, between about 4 pKa units and about 6 pKa units, in some embodiments, between about 5 pKa units and about 15 pKa units, in some embodiments, between about 5 pKa units and about 10 pKa units , in some embodiments, between about 5 pKa units and about 7 pKa units, in some embodiments, between about 7 pKa units and about 15 pKa units, in some embodiments, between about 7 pKa units and about 9 pKa units, in some embodiments, between about 9 pKa units and about 15 pKa units, in some embodiments, between about 9 pKa units and about 11 pKa units , in some embodiments, between about 11 pKa units and about 13 pKa units, and in some embodiments, between about 13 pKa units and about 15 pKa units, determined at 25 ° C.
In certain embodiments, the difference between pK<sub>to</sub> of hydrophobic acid and pK<sub>to</sub> of the protonated therapeutic agent may be between 1 pKa unit and 15 pKa units, in some embodiments, between 1 pKa unit and
10 pKa units, in some embodiments, between 1 pKa unit and 5 pKa units, in some embodiments, between 1 pKa unit and 3 pKa units, in some embodiments, between 1 pKa unit and 2 pKa units, in some embodiments, between 2 pKa units and 15 pKa units, in some embodiments, between 2 pKa units and 10 pKa units, in some embodiments, between 2 pKa units and 5 pKa units, in some embodiments, between 2 pKa units and 3 pKa units, in some embodiments, between 3 pKa units and 15 pKa units, in some embodiments, between 3 pKa units and 10 pKa units, in some embodiments, between 3 pKa units and 5 pKa units, in some embodiments, between 4 pKa units and 15 pKa units, in some embodiments, between 4 pKa units and 10 pKa units, in some embodiments, between 4 pKa units and 6 pKa units, in some embodiments, between 5 pKa units and 15 pKa units, in some embodiments, between 5 pKa units and 10 pKa units, in some embodiments, between 5 pKa units and 7 pKa units, in some embodiments , between 7 pKa units and 15 pKa units, in some embodiments, between 7 pKa units and 9 pKa units, in some embodiments, between 9 pKa units and 15 pKa units, in some embodiments, between 9 pKa units and 11 pKa units, in some embodiments, between 11 pKa units and 13 pKa units, and in some embodiments, between 13 pKa units and 15 pKa units, determined at 25 ° C.
In some cases, the difference between pK<sub>to</sub> of hldrófrobo acid and pK<sub>to</sub> of the protonated therapeutic agent may be at least about 1 pKa unit, in some embodiments, at least about 2 pKa units, in some embodiments, at least about 3 pKa units, in some embodiments , at least about 4 pKa units, in some embodiments, at least about 5 pKa units, in some embodiments, at least about 6 pKa units, in some embodiments, at least about 7 pKa units, in some embodiments, at least about 8 pKa units, in some embodiments, at least about 9 pKa units, in some embodiments, at least about 10 pKa units, and in some embodiments, at least about 15 pKa units, determined at 25 ° C.
In some embodiments, the difference between pK<sub>to</sub> of hydrophobic acid and pK<sub>to</sub> of the protonated therapeutic agent may be at least 1 pKa unit, in some embodiments, at least 2 pKa units, in some embodiments, at least 3 pKa units, in some embodiments, at least 4 units pKa, in some embodiments, at least 5 pKa units, in some embodiments, at least 6 pKa units, in some embodiments, at least 7 pKa units, in some embodiments, at least 8 pKa units, in some embodiments, at least 9 pKa units, in some embodiments, at least 10 pKa units, and in some embodiments, at least 15 pKa units, determined at 25 ° C.
In some embodiments, the hydrophobic acid may have a logP of between about 2 and about 15, in some embodiments, between about 5 and about 15, in some embodiments, between about 5 and about of 10, in some embodiments, between about 2 and about 8, in some embodiments, between about 4 and about 8, in some embodiments, between about 2 and about 7, or in some embodiments, between about 4 and about 7 In some cases, the hydrophobic acid may have a logP greater than about 2, greater than about 4, greater than about 5, or greater than about 6
In some embodiments, the hydrophobic acid may have a logP of between 2 and 15, in some embodiments, between 5 and 15, in some embodiments, between 5 and 10, in some embodiments, between 2 and 8, in some embodiments, between 4 and 8, in some embodiments, between 2 and 7, or in some embodiments, between 4 and 7 In some cases, the hydrophobic acid may have a logP greater than 2, greater than 4, greater than 5, or greater than 6
In some embodiments, a contemplated hydrophobic acid may have a convenient phase transition temperature, for example, to improve the properties of therapeutic nanoparticles. For example, the hydrophobic acid may have a melting point of less than about 350 ° C, in some cases, less than 300 ° C, in some cases, less than about 100 ° C, and in some cases, less than about 50 ° C In certain embodiments, The hydrophobic acid may have a melting point of between about 5 ° C and about 25 ° C, in some cases, between about 15 ° C and about 50 ° C, in some cases, between about 30 ° C and about 100 ° C, in some cases, between about 75 ° C and about 150 ° C, in some cases, between about 125 ° C and about 200 ° C, in some cases, between about 150 ° C and around 250 ° C, in some cases, between about 200 ° C and about 300 ° C, and in some cases, between about 250 ° C and about 350 ° C In some cases, hldrophobic acid may have a melting point of less than about 15 ° C, in some cases, less than about 10 ° C , or in some cases, less than about 0 ° C. In certain embodiments, the hldrophobic acid may have a melting point between about -30 ° C and about 0 ° C or in some cases, between about -20 ° C and about -10 ° C
In some embodiments, the hldrophobic acid may have a melting point of less than 350 ° C, in some cases, less than 300 ° C, in some cases, less than 100 ° C, and in some cases, less than 50 ° C In certain embodiments, the hldrophobic acid may have a melting point between 5 ° C and 25 ° C, in some cases, between 15 ° C and 50 ° C, in some cases, between 30 ° C and 100 ° C, in some cases, between 75 ° C and 150 ° C, in some cases, between 125 ° C and 200 ° C, in some cases, between 150 ° C and 250 ° C, in some cases, between 200 ° C and 300 ° C, and in some cases, between 250 ° C and 350 ° C In some cases, hldrófrobo acid may have a melting point of less 15 ° C, in some cases, less than 10 ° C, or in some cases, less than 0 ° C. In certain embodiments, the hldrophobic acid may have a melting point between -30 ° C and 0 ° C, or in some cases, between -20 ° C and -10 ° C.
For example, the hydrophobic acid for use in the methods and nanoparticles disclosed in this application can be selected, at least in part, based on the solubility of the therapeutic agent in a solvent comprising the acid. For example, in some embodiments, according to the solvent, the therapeutic agent dissolved in a solvent comprising the acid may have a solubility of between about 15 mg / ml and about 200 mg / ml, between about 20 mg / ml and about 200 mg / ml, between about 25 mg / ml and about 200 mg / ml, between about 50 mg / ml and about 200 mg / ml, between about 75 mg / ml and around 200 mg / ml, between about 100 mg / ml and about 200 mg / ml, between about 125 mg / ml and about 175 mg / ml, between about 15 mg / ml and about 50 mg / ml, between about 25 mg / ml and about 75 mg / ml In some embodiments, The therapeutic agent dissolved in a solvent containing hldrophobic acid may have a solubility greater than about 10 mg / ml, greater than about 50 mg / ml, or greater than about 100 mg / ml. In some embodiments, the therapeutic agent dissolved in a solvent containing the hydrophobic acid (for example, a first solution consisting of the therapeutic agent, solvent and hydrophobic acid) may have a solubility of at least about 2 times greater , in some embodiments, at least about 5 times greater, in some embodiments, at least about 10 times greater, in some embodiments, at least about 20 times greater, in some embodiments, about 2 times to about 20 times greater or in some embodiments, about 10 times to about 20 times greater, than when the therapeutic agent is dissolved in a solvent that does not contain the hydrophobic acid (for example, a second solution consisting of the therapeutic agent and the solvent)
In some embodiments, according to the solvent, the therapeutic agent dissolved in a solvent comprising the acid may have a solubility of between 15 mg / ml and 200 mg / ml, between 20 mg / ml and 200 mg / ml, between 25 mg / ml and 200 mg / ml, between 50 mg / ml and 200 mg / ml, between 75 mg / ml and 200 mg / ml, between 100 mg / ml and 200 mg / ml, between 125 mg / ml and 175 mg / ml, between 15 mg / ml and 50 mg / ml, between 25 mg / ml and 75 mg / ml In some embodiments, The therapeutic agent dissolved in a solvent containing the hydrophobic acid may have a solubility greater than 10 mg / ml, greater than 50 mg / ml, or greater than 100 mg / ml. In some embodiments, the therapeutic agent dissolved in a solvent containing the hydrophobic acid (for example, a first solution consisting of the therapeutic agent, solvent and hydrophobic acid) may have a solubility at least 2 times greater, in some embodiments, at least 5 times greater, in some embodiments, at least 10 times greater, in some embodiments, at least 20 times greater, in some embodiments, two times 20 times greater or in some embodiments, 10 times 20 times greater, than when the therapeutic agent is dissolved in a solvent that does not contain the hydrophobic acid (for example, a second solution consisting of the therapeutic agent and the solvent)
In some cases, the concentration of hydrophobic acid in a drug solution (i.e., the therapeutic agent solution) may vary from about 1 percent by weight to about 30 percent by weight, in some embodiments, of about 2 percent by weight to about 30 percent by weight, in some embodiments, from about 3 percent by weight to about 30 percent by weight, in some embodiments, from about 4 percent by weight to about 30 percent by weight, in some embodiments, from about 5 percent by weight to about 30 percent by weight, in some embodiments, from about 6 percent by weight to about 30 percent by weight, in some embodiments, from about 8 percent by weight to about 30 percent by weight, in some embodiments, from about 10 percent by weight to about 30 percent by weight, in some embodiments, from about 12 percent by weight to about 30 percent by weight, in some embodiments, from about 14 percent by weight to about 30 percent by weight, in some embodiments, from about 16 percent by weight to about 30 percent by weight, in some embodiments, from about 1 percent by weight to about 5 percent by weight, in some embodiments, from about 3 percent by weight to about 9 percent by weight, in some embodiments, from about 6 percent by weight to about 12 percent by weight, in some embodiments, from about 9 percent by weight to about 15 percent by weight, in some embodiments, from about 12 percent by weight to about 18 percent by weight, and in some embodiments, from about 15 percent by weight to about 21 percent by weight In certain embodiments, the acid concentration hydrophobic in a drug solution may be about 1 percent by weight or greater, in some embodiments, about 2 percent by weight or greater, in some embodiments, about 3 percent by weight or greater, in some embodiments, about 5 percent by weight or greater, in some embodiments, about 10 percent by weight or greater, in some embodiments, about 15 percent by weight or greater, and in some embodiments, about 20 percent by weight or greater
In some cases, the concentration of hydrophobic acid in a drug solution (i.e., the therapeutic agent solution) may vary from 1 percent by weight to 30 percent by weight, in some embodiments, from 2 percent in weight at 30 percent by weight, in some embodiments, from 3 percent by weight to 30 percent by weight, in some embodiments, from 4 percent by weight to 30 percent by weight, in some forms of realization, from 5 percent by weight to 30 percent by weight, in some embodiments, from 6 percent by weight to 30 percent by weight, in some embodiments, from 8 percent by weight to 30 percent by weight , in some embodiments, from 10 percent by weight to 30 percent by weight, in some embodiments, from 12 percent by weight to 30 percent by weight, in some embodiments, from 14 percent by weight weight at 30 percent by weight, in some embodiments, from 16 percent by weight to 30 percent by weight, in some embodiments, from 1 percent by weight to 5 percent by weight, in some embodiments, from 3 percent by weight to 9 percent by weight , in some embodiments, from 6 percent by weight to 12 percent by weight, in some embodiments, from 9 percent by weight to 15 percent by weight, in some embodiments, from 12 percent by weight. weight to 18 percent by weight, and in some embodiments, from 15 percent by weight to 21 percent by weight In certain embodiments, the concentration of hldrophobic acid in a drug solution may be 1 percent by weight or greater, in some embodiments, 2 percent by weight or greater, in some embodiments, 3 percent by weight or greater, in some embodiments, 5 percent by weight or greater, in some embodiments, 10 percent by weight or greater, in some embodiments, fifteen weight percent or greater, and in some embodiments, 20 weight percent or greater.
In certain embodiments, the molar ratio of hldrophobic acid to a therapeutic agent (for example, imcially during the formulation of the nanoparticles and / or in the nanoparticles) may vary from about 0 25.1 to about 6.1, in some embodiments , from about 0 25 1 to about 5: 1, in some embodiments, from about 0 25 1 to about 4Ί, in some embodiments, from about 0 25 1 to about 3 1, in some embodiments, from about 0 25 1 to about 2: 1, in some embodiments, from about 0 25.1 to about 1.5Ί, in some embodiments, from about 0 25Ί to about 1: 1, in some embodiments, from about 0 25 1 to about 0.5 1, in some embodiments, from about 0 5 1 to about 6Ί, in some embodiments, from about 0 5.1 to about 5 1, in some embodiments, from about 0 5 1 to about 4: 1, in some embodiments, from about 0 5 1 to about 3Ί, in some embodiments, from about 0 5Ί to about 2.1, in some forms of embodiment, from about 0.5.1 to about 1.5: 1, in some embodiments, from about 0 5 1 to about 1: 1, in some embodiments, from about 0 5 1 to about 0 75.1, in some embodiments, from about 0 75.1 to about 2 1, in some embodiments, from about 0 75 1 to about 1.5: 1, in some embodiments, from about 0 75.1 to about 1 25: 1, in some embodiments, from about 0 9 1 to about 1 1 1, in some embodiments, from about 0 95 1 to about 1 05: 1, in some embodiments, about 1 1, in some embodiments, from about 0 75 1 to about 1.1, in
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some embodiments, from about 3: 1 to about 5 1, and in some embodiments, from about 4: 1 to about 6 1
In certain embodiments, the molar ratio of hydrophobic acid to a therapeutic agent (for example, imcially during the formulation of the nanoparticles and / or the nanoparticles) may vary from 0.25 1 to 61, in some embodiments, from 0 25.1 to 5.1, in some embodiments, from 0.25: 1 to 4Ί, in some embodiments, from 0 25 1 to 3 1, in some embodiments, from 0.25: 1 to 2.1, in some embodiments, from 0.25: 1 to 1 5Ί, in some embodiments, from 0 25.1 to 1.1, in some embodiments, from 0.25: 1 to 0 5.1, in some embodiments, from 0 5: 1 to 6.1, in some embodiments, from 0.5.1 to 5 1, in some embodiments, from 0 5.1 to 4 1, in some embodiments, from 0.5.1 to 3: 1, in some embodiments, from 0 5 1 to 2 1, in some embodiments embodiment, from 0.5: 1 to 1.5: 1, in some embodiments, from 0 5.1 to 1: 1, in some embodiments, from 0 5 1 to 0 75 1, in some embodiments, from 0.75: 1 to 2: 1, in some embodiments, from 0 75.1 to 1 5Ί, in some embodiments, from 0 75 1 to 1 25 1, in some embodiments, from 0 9.1 to 1.1.1, in some embodiments, from 0.95: 1 to 1 05.1, in some embodiments, 1.1, in some embodiments, from 0.75.1 to 1 : 1, in some embodiments, from 1: 1 to 6.1, in some embodiments, from 11 to 5 1, in some embodiments, from 1: 1 to 4 1, in some embodiments, from 1.1 to 3.1, in some embodiments, from 1.1 to 2.1, in some embodiments, from 1.1 to 1 5Ί, in some embodiments, from 1 5 1 to 6 1, in some embodiments, from 1.51 to 5Ί, in some embodiments, from 1 5 1 to 4.1, in some embodiments, from 1 5 1 to 3 1, in some embodiments, from 2.1 to 6.1, in some embodiments, from 2: 1 to 4Ί, in some embodiments, from 3: 1 to 6 1, in some embodiments, from 31 to 51, and in some embodiments, from 4Ί to 6 1
In some cases, the initial molar ratio of hydrophobic acid a therapeutic agent (i.e., during the formulation of the nanoparticles) may be different from the molar ratio of hydrophobic acid a therapeutic agent in the nanoparticles (i.e., after removal of the non-encapsulated hydrophobic acid and therapeutic agent) In other cases, the initial molar ratio of hydrophobic acid a therapeutic agent (i.e., during the formulation of the nanoparticles) a therapeutic agent in the nanoparticles can be essentially equal to the molar ratio of hydrophobic acid (i.e., after the removal of non-encapsulated hydrophobic acid and therapeutic agent)
In one embodiment, when the nanoparticle contains the hydrophobic acid, the nanoparticle comprising the therapeutic agent, 1- (4 - {[4 (dlmethylamino) peridin-1-yl] carbonyl) phenyl) -3— [4— (4,6-dimorfolin-4-yl-1,3,5-triazin-2-l) phenyl] urea, can form a salt with the hydrophobic acid. In other words, the hydrophobic acid associated with the therapeutic agent is the pharmaceutically acceptable salt. Therefore, in one embodiment, the present invention relates to a therapeutic nanoparticle comprising therapeutic agent or a pharmaceutically acceptable salt thereof and a polymer selected from poly (lactic acid) -poly (ethylene) glycol diblock copolymer. or a copolymer of poh diblock (lactic acid-co-glycolic acid) -poly (ethylene) glycol and combinations thereof, where the therapeutic agent is - (4 - {[4— (d? melamine) piperidin-1-yl] carboml} phenyl) -3- [4- (4,6-dimorfolin-4-yl
1,3,5-triazin-2-yl) phenyl] urea.
In some cases, a solution containing the therapeutic agent can be prepared, separately from a solution containing the polymer, and the two solutions can then be combined before the nanoparticle formulation. For example, in an embodiment, a first solution contains the therapeutic agent and hydrophobic acid, and a second solution contains the polymer and, optionally, the hydrophobic acid Formulations where the second solution does not contain the hydrophobic acid may be convenient, for example, to minimize the amount of hydrophobic acid used in a process, or in some cases, to minimize the contact time between the hydrophobic acid and, for example, a polymer that can be degraded in the presence of the hydrophobic acid. In other cases, a single solution can be prepared containing the therapeutic agent, polymer and hydrophobic acid
In some embodiments, the pair of hydrophobic ions may be formed prior to the formulation of the nanoparticles. For example, a solution containing the pair of hydrophobic ions may be prepared prior to the formulation of the contemplated nanoparticles (for example, by preparing a solution containing adequate amounts of the therapeutic agent and the hydrophobic acid) In other embodiments, The pair of hydrophobic ions can be formed during the formulation of the nanoparticles. For example, a first solution containing the therapeutic agent and a second solution containing the hydrophobic acid can be combined during a process step for the preparation of the nanoparticles (e.g., before emulsion formation and / or during emulsion formation) In certain embodiments, The pair of hydrophobic ions can be formed before encapsulation of the therapeutic agent and hydrophobic acid in a contemplated nanoparticle. In other embodiments, the pair of hydrophobic ions can be formed in the nanoparticle, for example, after encapsulation of the therapeutic agent and hydrophobic acid.
In certain embodiments, the hydrophobic acid may have a solubility of less than about 2 g per 100 ml of water or less, in some embodiments, about 1 g per 100 ml of water or less, in some forms of embodiment, about 100 mg per 100 ml of water or less, in some embodiments, about 10 mg per 100 ml of water or less, and in some embodiments, about 1 mg per 100 ml of water or less , determined at 25 ° C. In other embodiments, the hydrophobic acid may have a solubility ranging from about 1 mg per 100 ml of water to about 2 g per 100 ml of water, in some embodiments, of about 1 mg per 100 ml. of water to about 1 g per 100 ml of water, in some embodiments, from about 1 mg per 100 ml of water to about 500 mg per 100 ml of water, and in some embodiments, from about 1 mg per 100 ml of water to about 100 mg per 100 ml of water, determined at 25 ° C In some embodiments, the hydrophobic acid may be essentially insoluble in water at 25 ° C.
In certain embodiments, the hydrophobic acid may have a solubility of less than 2 g per 100 ml of water or less, in some embodiments, 1 g per 100 ml of water or less; in some embodiments, 100 mg per 100 ml of water or less, in some embodiments, 10 mg per 100 ml of water or less, and in some embodiments, 1 mg per 100 ml of water or less, determined at 25 ° C In other embodiments, the hydrophobic acid may have a solubility ranging from 1 mg per 100 ml of water to 2 g per 100 ml of water; in some embodiments, from 1 mg per 100 ml of water to 1 g per 100 ml of water, in some embodiments, from 1 mg per 100 ml of water to 500 mg per 100 ml of water, and in some forms of embodiment, from 1 mg per 100 ml of water to 100 mg per 100 ml of water, determined at 25 ° C. In some embodiments, the hydrophobic acid may be essentially water soluble at 25 ° C
In some embodiments, the disclosed nanoparticles may be essentially free of the hydrophobic acid used during the preparation of the nanoparticles. In other embodiments, the disclosed nanoparticles may comprise the hydrophobic acid. For example, in some embodiments, the acid content in the disclosed nanoparticles may vary from about 0.05 percent by weight to about 35 percent by weight, in some embodiments, from about 0.05 percent by weight to about 30 percent by weight, in some embodiments, from about 0 05 percent by weight to about 20 percent by weight, in some embodiments, from about 0 5 percent by weight to about 30 percent by weight, in some embodiments, from about from 1 percent by weight to about 30 percent by weight, in some embodiments, from about 2 percent by weight to about 30 percent by weight, in some embodiments, from about 3 percent by weight to about 30 percent by weight, in some embodiments, from about 5 percent by weight to about 30 percent by weight, in some embodiments, from about 7 percent by weight to about 30 percent by weight, in some embodiments, from about 10 percent by weight to about 30 percent by weight, in some embodiments, from about 15 percent by weight to about 25 percent by weight, in some embodiments, from about 15 percent by weight to about 30 percent by weight, in some embodiments, from about 20 percent by weight to about 30 percent by weight, in some embodiments, from about 0 05 percent by weight to about 0 5 percent by weight, in some embodiments, from about 0.05 percent by weight to about 5 percent by weight, in some embodiments, from about 1 percent by weight to about 5 percent by weight, in some embodiments, from about 3 percent by weight to about 10 percent by weight, in some embodiments, from about 1 percent by weight to about 10 percent by weight, in some embodiments, from about 5 percent by weight to about 10 percent by weight, in some embodiments, from about 5 percent by weight to about 15 percent by weight, and in some embodiments, from about 10 percent by weight to about 20 percent by weight
In some embodiments, the acid content in the disclosed nanoparticles may vary from 0.05 percent by weight to 35 percent by weight, in some embodiments, from 0.05 percent by weight to 30 percent by weight, in some embodiments, from 0 05 percent by weight to 20 percent by weight, in some embodiments, from 0 5 percent by weight to 30 percent by weight, in some embodiments, from 1 percent by weight weight at 30 percent by weight, in some embodiments, from 2 percent by weight to 30 percent by weight, in some embodiments, from 3 percent by weight to 30 percent by weight, in some embodiments, from 5 percent by weight at 30 percent by weight, in some embodiments, from 7 percent by weight to 30 percent by weight, in some embodiments, from 10 percent by weight to 30 percent by weight, in some embodiments , from 15 percent by weight to 25 percent by weight, in some embodiments, from 15 percent by weight to 30 percent by weight, in some embodiments, from 20 percent by weight to 30 percent by weight, in some embodiments, from 0 05 percent by weight weight at 0 5 percent by weight, in some embodiments, from 0.05 percent by weight to 5 percent by weight, in some embodiments, from 1 percent by weight to 5 percent by weight, in some forms of realization, from 3 percent by weight to 10 percent by weight, in some embodiments, from about 1 percent by weight to about 10 percent by weight, in some embodiments, from about 5 percent by weight at about 10 percent by weight, in some embodiments, from 5 percent by weight to 15 percent by weight, and in some embodiments, from 10 percent by weight to 20 percent by weight.
In some embodiments, the disclosed nanoparticles release substantially immediately (for example, from about 1 minute to about 30 minutes, about 1 minute to about 25 minutes, about 5 minutes to about 30 minutes, about 5 minutes to about 1 hour, about 1 hour, or about 24 hours) In other cases, the release profile is slower 'is released about 2% or less, about 5% or less; about 10% or less; about 15% or less; about 20% or less; about 25% or, about 30% or less, about 40% or less of the therapeutic agent, by weight, for example, when placed in a phosphate regulator solution, for example, a regulator comprising phosphate regulator monobasic and dibasic (such as sodium chloride regulator, 0 138 M, potassium chloride,
0.0027 M, monobasic sodium or potassium phosphate, about 0 02 M, and sodium or potassium dibasic phosphate, about 0.01 M, dissolved in 1 liter of water, for example, RODI water), at room temperature (for example, 25 ° C) and / or 37 ° C In certain embodiments, nanoparticles comprising the therapeutic agent may release the therapeutic agent when placed in an aqueous solution (eg, a phosphate regulator solution, as described in the present application above), for example, at 25 ° C and / or 37 ° C, at a rate substantially corresponding to about
01 to about 50%, in some embodiments, about 0 01 to about 25%, in some embodiments, about 0 01 to about 15%, in some embodiments, about 0 01 to about 10%, in some embodiments, about 1 to about 40%, in some embodiments, about 5 to about 40%, and in some embodiments, about 10 to about 40% of the therapeutic agent released, by weight, for about 1 hour In some embodiments, nanoparticles comprising the therapeutic agent can release the therapeutic agent when placed in an aqueous solution (for example, a phosphate regulator solution), for example, at 25 ° C and / or at 37 ° C, at a rate substantially corresponding to about 10 to about 70%, in some embodiments, about 10 to about 45%, in some embodiments, about 10 to about 35%, or in some embodiments, about 10 to about 25%, of therapeutic agent released by weight for about 4 hours In certain embodiments, nanoparticles comprising the therapeutic agent can releasing the therapeutic agent when placed in an aqueous solution (for example, a phosphate regulator solution, as described in the present application above), for example, at 25 ° C and / or 37 ° C, at a rate substantially corresponding to about 0.01 to about 50%, in some embodiments, about 0.01 to about 25%, in some embodiments, about 0.01 to about 15%, in some embodiments , about 0.01 to about 10%, in some embodiments, about 0.01 to about 5%, and in some embodiments, about 0 01 to about 3% of the therapeutic agent released by weight for about 4 hours. In certain embodiments, the nanoparticles comprising the therapeutic agent may release the therapeutic agent when placed in an aqueous solution (for example, a phosphate regulator solution, as described in the present application above) for example, at ° C and / or 37 ° C, at a rate substantially corresponding to about 0.01 to about 60%, in some embodiments, about 0.01 to about 25%, in some embodiments, about 0 01 to about 15%, in some embodiments, about 0.01 to about 10%, in some embodiments, about 0.01 to about 5%, and in some embodiments, about 0 01 to about 3% of the therapeutic agent released by weight for about 10 hours. In certain embodiments, the nanoparticles comprising the therapeutic agent may release the therapeutic agent when placed in an aqueous solution (for example, a phosphate regulator solution, as described in the present application above) for example, at ° C and / or 37 ° C, at a rate substantially corresponding to about 0.01 to about 70%, in
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some embodiments, about 0.01 to about 3% of the therapeutic agent released by weight for about 20 hours. In certain embodiments, the nanoparticles comprising the therapeutic agent may release the therapeutic agent when placed in an aqueous solution (for example, a phosphate regulator solution, as described in the present application above) for example, at ° C and / or 37 ° C, at a rate substantially corresponding to about 1 to about 80%, in some embodiments, about 1 to about 50%, in some embodiments, about 1 to about 30%, in some embodiments, about 1 to about 25%, in some embodiments, about 1 to about 15%, in some embodiments, about 1 to about 10%, and in some embodiments, about 1 to about 5% of the therapeutic agent released by weight for about 40 hours. In certain embodiments, the nanoparticles comprising the therapeutic agent may release the therapeutic agent when placed in an aqueous solution (for example, a phosphate regulator solution, as described in the present application above) for example, at ° C and / or 37 ° C, at a rate substantially corresponding to about 10 to about 100%, in some forms of
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embodiment, about 10 to about 20% of the therapeutic agent released by weight for about 100 hours.
In some embodiments, the disclosed nanoparticles release substantially immediately (for example, from 1 minute to 30 minutes, 1 minute to 25 minutes, 5 minutes to 30 minutes, 5 minutes to 1 hour, 1 hour, or 24 hours) In other cases, the release profile is slower, 2% or less is released; 5% or less; 10% or less; 15% or less, 20% or less, 25%, 30% or less 40% or less of the therapeutic agent, by weight, for example, when placed in a phosphate regulator solution, for example, a regulator comprising regulator of monobasic and dibasic phosphate (such as sodium chloride regulator, 0 138 M, potassium chloride, 0 0027 M, sodium phosphate or monobasic potassium phosphate, about 0.02 M, and sodium or potassium dibasic phosphate, about 0 01 M, dissolved in 1 liter of water, for example, RODI water), at room temperature (for example, 25 ° C) and / or at 37 ° C In certain embodiments, nanoparticles comprising the therapeutic agent can release the therapeutic agent when placed in an aqueous solution (for example, a regulator solution phosphate, as described in the present application above) for example, at 25 ° C and / or 37 ° C, at an index substantially corresponding to 0 01 to 50%, in some embodiments, 0 01 to 25%, in some embodiments, 0 01 to 15%, in some embodiments, 0.01 to 10%, in some embodiments, 1 to 40%, in some embodiments, 5 to 40%, and in some embodiments embodiment, 10 to 40% of the therapeutic agent released by weight for 1 hour In some embodiments, nanoparticles comprising the therapeutic agent can release the therapeutic agent when placed in an aqueous solution (eg, a phosphate regulator solution ), for example, at 25 ° C and / or 37 ° C, at a rate substantially corresponding to 10 to 70%, in some embodiments, 10 to 45%, in some embodiments, 10 to 35%, or in some embodiments, 10 to 25%, of therapeutic agent, released by weight for 4 hours. In certain embodiments, the nanoparticles comprising the therapeutic agent can release the therapeutic agent when placed in an aqueous solution (for example, a phosphate regulator solution, as described in the present application above) for example, at ° C and / or 37 ° C, at a rate substantially corresponding to 0.01 to 50%, in some embodiments, 0 01 to 25%, in some embodiments, 0.01 to 15%, in some embodiments, 0 01 to 10%, in some embodiments, 0 01 to 5%, and in some embodiments, 0.01 to 3% of the therapeutic agent released by weight for 4 hours In certain embodiments, the nanoparticles comprising the therapeutic agent they can release the therapeutic agent when placed in an aqueous solution (for example, a phosphate regulator solution, as described in the present application above) for example, at 25 ° C and / or 37 ° C, at a rate substantially corresponding to 0 01 to 60%, in some embodiments, 0.01 to 25%, in some embodiments,
0.01 to 15%, in some embodiments, 0.01 to 10%, in some embodiments, 0.01 to 5%, and in some embodiments, 0 01 to 3% of the therapeutic agent released by weight for 10 hours. In certain embodiments, the nanoparticles comprising the therapeutic agent may release the therapeutic agent when placed in an aqueous solution (for example, a phosphate regulator solution, as described in the present application above) for example, at ° C and / or 37 ° C, at an index substantially corresponding to 0 01 to 70%, in some embodiments, 0 01 to 50%, in some embodiments, 0 01 to 25%, in some embodiments, 0.01 to 15%, in some embodiments,
0.01 to 10%, in some embodiments, 0.01 to 5%, and in some embodiments, 0.01 to 3% of the therapeutic agent released by weight for 20 hours In certain embodiments, nanoparticles comprising the therapeutic agent may releasing the therapeutic agent when placed in an aqueous solution (for example, a phosphate regulator solution, as described in the present application above) for example, at 25 ° C and / or 37 ° C, at a substantially corresponding rate 1 to 80%, in some embodiments, 1 to 50%, in some embodiments, 1 to 30%, in some embodiments, 1 to 25%, in some embodiments, 1 at 15%, in some embodiments, 1 to 10%, and in some embodiments, 1 to 5% of the therapeutic agent released by weight for 40 hours In certain embodiments, nanoparticles comprising the therapeutic agent can release the therapeutic agent when placed in an aqueous solution (for example, a phosphate regulator solution, as described in the present application above) for example, at 25 ° C and / or 37 ° C, at a rate substantially corresponding to 10 to 100%, in some embodiments, 10 to 80%, in some embodiments, 10 to 70%, in some embodiments, 10 to 60%, in some forms of realization, 10 at 50%, in some embodiments, 10 to 40%, in some embodiments, 10 to 30%, in some embodiments, 10 to 20% of the therapeutic agent released by weight for 100 hours.
In some embodiments, the disclosed nanoparticles can substantially retain the therapeutic agent, for example, for at least about 1 minute, at least about 1 hour or more, when placed in a phosphate regulator solution at 37 ° C
In some embodiments, the disclosed nanoparticles can substantially retain the therapeutic agent, for example, for at least 1 minute, at least 1 hour or more, when placed in a phosphate regulator solution at 37 ° C.
In one embodiment, the disclosed therapeutic nanoparticles may include a dreduction ligand, for example, a low molecular weight ligand. In certain embodiments, the low molecular weight ligand is conjugated to a polymer, and the nanoparticle comprises a certain ratio of polymer conjugated to ligand (for example, PLA-PEG binding) to non-functional polymer (for example, PLA-PEG or PLGA-PEG)
The nanoparticle can have an effective ratio of these two polymers, such that an effective amount of ligand is associated with the nanoparticle for the treatment of a disease or disorder, such as cancer. For example, a higher ligand density may increase. target binding (cell binding / target absorption), so as to make the nanoparticle "target specific". Alternatively, a certain concentration of non-fungal-bound polymer (e.g., non-fungal PLGA-PEG copolymer) in the nanoparticle can control inflammation and / or Immunogenicity (i.e., the ability to elicit an immune response), and allow the nanoparticle have an adequate half-life of circulation for the treatment of a disease or disorder. For example, in one embodiment, the molar ratio of non-functional polymer to the ligand-conjugated polymer ranges from about 0 01 to about 0 1, and in another embodiment, from about 0.01 to about 0.05, such as, for example, about 0.025. Additionally, the non-fungal polymer, in some embodiments, may decrease the rate of clearance of the circulatory system through the reticuloendothelial system (RES, according to its acronym in English). Therefore, the non-fungal polymer can provide the nanoparticle with characteristics that can allow the particle to travel through the organism with the administration. In some embodiments, a non-fungal polymer can balance an otherwise high concentration of ligands, which, otherwise, can accelerate the clearance by the subject, so as to produce less supply to the target cells
In another embodiment, the molar ratio of nonfunctioned polymer to ligand conjugated polymer ranges from 0 01 to 0 1, and in another embodiment, from 0.01 to 0.05, such as, for example 0.025
In some embodiments, the nanoparticles disclosed in this application may include functionalized polymers conjugated to a ligand that constitute a range of about 0.1 to about 50, for example, about 0.1 to about 30, for example, about 0 1 at about 20, for example, about 0.1 to about 10 mole percent of the entire polymer composition of the nanoparticle (i.e., functionalized polymer + non-functionalized polymer). Further disclosed in this application, in another embodiment, are nanoparticles that include a conjugated polymer (for example, covalently (i.e., through a connector (for example, an alkylene connector)) or a bond) with one or more low molecular weight ligands, where the percentage by weight of low molecular weight ligand with respect to total polymer ranges from about 0.001 to about 5, for example, from about 0.001 to about 2, for example, from about 0.001 to about 1.
In some embodiments, the nanoparticles disclosed in this application may include functionalized polymers conjugated to a ligand that constitute a range of 0 1-50, for example, 0-1-30, for example, 0 1-20, for example, 0.1- 10 mole percent of the entire polymer composition of the nanoparticle (i.e. Functionalized polymer + non-functionalized polymer) In addition, nanoparticles that include a polymer conjugated with one or more low molecular weight ligands are disclosed in this application, where the percentage by weight of low molecular weight ligand with respect to the total polymer ranges from 0 001 to 5, for example, from 0 001 to 2, for example, from 0 001 to 1.
In general, a "nanoparticle" refers to any particle having a diameter of less than 1000 nm, for example, about 10 nm to about 200 nm. The disclosed therapeutic nanoparticles may include nanoparticles having a diameter ranging from about 60 to about 120 nm, or about 70 to about 120 nm, or about 80 to about 120 nm, or about 90 to about 120 nm, or about 100 to about 120 nm , or about 60 to about 130 nm, or about 70 to about 130 nm, or about 80 to about 130 nm, or about 90 to about
130 nm, or about 100 to about 130 nm, or about 110 to about 130 nm, or about 60 to about 140 nm, or about 70 to about 140 nm, or about 80 to around
140 nm, or about 90 to about 140 nm, or about 100 to about 140 nm, or about 110 to about 140 nm, or about 60 to about 150 nm, or about 70 to around
150 nm, or about 80 to about 150 nm, or about 90 to about 150 nm, or about 100 to about 150 nm, or about 110 to about 150 nm, or about 120 to around
150 nm
The therapeutic nanoparticles disclosed may include nanoparticles having a diameter ranging from 60 to 120 nm, or 70 to 120 nm, or 80 to 120 nm, or 90 to 120 nm, or 100 to 120 nm, or 60 at 130 nm, or from 70 to 130 nm, or from 80 to 130 nm, or from 90 to 130 nm, or from 100 to 130 nm, or from 110 to 130 nm, or from 60 to 140 nm, or from 70 to 140 nm, or 80 to 140 nm, or 90 to 140 nm, or 100 to 140 nm, or 110 to 140 nm, or 60 to 150 nm, or 70 to 150 nm, or 80 to 150 nm, or 90 to 150 nm, or 100 to 150 nm, or 110 to 150 nm, or 120 to 150 nm
Polymers
In some embodiments, the nanoparticles may comprise a mixture of polymers and the therapeutic agent. In some embodiments, the therapeutic agent and / or targeting moiety (i.e., a low molecular weight ligand) may be associated with less part of the polymer matrix. For example, in some embodiments, a targeting moiety (eg, ligand) may be covalently associated with the surface of a polymeric matrix. In some embodiments, covalent association is mediated by a linker. The therapeutic agent may be associated with the surface of the polymeric matrix, or encapsulated within the polymeric matrix, or surrounded by the polymeric matrix, and / or dispersed through the polymeric matrix
A wide variety of polymers and methods for forming particles from them are known in the art of drug administration. In some embodiments, the disclosure is directed to nanoparticles with at least two macromolecules, where the first macromolecule comprises a first polymer linked to a low molecular weight ligand (eg, rest of the directional agent), and the second macromolecule comprises a second polymer that is not bound to a directional moiety. The nanoparticle may optionally include one or more additional, non-functional, non-functional polymers.
Any suitable polymer can be used in the disclosed nanoparticles. The polymers can be natural or unnatural (synthetic). The polymers can be homopolymers or copolymers comprising two or more monomers. In terms of sequence, the copolymers can be random, block or comprise a combination. of random and block sequences Typically, polymers are organic polymers
The term "polymer", as used in the present application, is given its common meaning as used in the art, that is, a molecular structure comprising one or more repeating units (monomers), connected by covalent bonds. Repeating units may all be identical, or in some cases, there may be more than one type of repeating unit present within the polymer. In some cases, the polymer can be biologically derived, that is, a biopolymer
Non-limiting examples include peptides or proteins. In some cases, additional residues may also be present in the polymer, for example, biological residues such as those described below. If more than one type of repeating unit is present within the polymer, then the polymer is said to be a " copolymer. " It is understood that in any embodiment that employs a polymer, the polymer employed can be a copolymer, in some cases. The repeating units that form the copolymer can be arranged in any way. For example, the repeating units can be arranged in a random order, in an alternating order, or as a block copolymer, that is, comprising one or more regions where each one comprises a first repeating unit (for example, a first block), and one or more regions each comprising a second repeating unit (for example, a second block), etc. Block copolymers may have two (a diblock copolymer), three (a triblock copolymer), or more numbers of different blocks.
The disclosed particles may include copolymers, which, in some embodiments, describe two or more polymers (such as those described in this application) that have been associated with each other, usually, by covalent bonding of the two or more polymers between yes. Therefore, a copolymer can comprise a first polymer and a second polymer, which have been conjugated together to form a block copolymer where the first polymer can be a first block of the block copolymer, and the second polymer can be a second block copolymer block
Naturally, those skilled in the art will understand that a block copolymer, in some cases, may contain multiple polymer blocks, and that a block copolymer, as used in the present application, is not limited to just one block copolymer having a single first block and a single second block. For example, a block copolymer may comprise a first block comprising a first polymer, a second block comprising a second polymer, and a third block comprising a third polymer or the first polymer, etc. In some cases, block copolymers they can contain any number of first blocks of a first polymer and second blocks of a second polymer (and in certain cases, third blocks, fourth blocks, etc.) In addition, it should be noted that block copolymers can also be formed, in some cases, from other block copolymers. For example, a first block copolymer can be conjugated to another polymer (which can be a homopolymer, a biopolymer, another block copolymer, etc), to form a new block copolymer containing multiple types of blocks, and / or with other moieties (for example, with non-polymeric moieties)
In some embodiments, the polymer (for example, copolymer, for example, block copolymer) can be amphiphilic, that is, it has a hydrophilic portion and a hydrophobic portion, or a relatively hydrophilic portion and a relatively hydrophobic portion. A polymer. Hydrophilic may be one that generally attracts water, and a hydrophobic polymer may be one that generally repels water. A hydrophilic or hydrophobic polymer can be identified, for example, by preparing a sample of the polymer and measuring its contact angle with water (usually, the polymer will have a contact angle of less than 60 °, while a hydrophobic polymer will have a contact angle greater than about 60 °) In some cases, the hydrophilicity of two or more polymers can be measured in relation to each other, that is, A first polymer can be more hydrophilic than a second polymer. For example, the first polymer may have a lower contact angle than the second polymer.
In a group of embodiments, a polymer (for example, copolymer, for example, block copolymer) contemplated in this application includes a biocompatible polymer, that is, the polymer that usually does not induce an adverse response when inserted or injected in a living subject, for example, without significant inflammation and / or acute rejection of the polymer by the immune system, for example, by means of a T-cell response Accordingly, The therapeutic particles contemplated herein may be non-immunogenic. The term non-immunogen, as used in the present application, refers to endogenous growth factor in its native state, which normally does not produce circulating antibodies, T cells, or reactive immune cells, or produces only minimum levels of them, and that normally does not produce in the individual an immune response against himself
Blocompatibility usually refers to acute rejection of material by at least a portion of the immune system; that is, a non-biocompatible material implanted in a subject causes an immune response in the subject, which can be severe enough that the rejection of the material by the Immune System cannot be adequately controlled, and often is of a degree of such that the material must be removed from the subject. A simple test to determine blocompatibility can consist of the exposure of a polymer to cells in vitro, Blocompatl polymers are polymers that usually will not produce significant cell death in moderate concentrations, for example, in concentrations of 50 micrograms / 10<sup>6</sup> cells. For example, a biocompatible polymer can produce less than about 20% cell death when exposed to cells such as fibroblasts or epithelial cells, even when it is phagocytized or otherwise absorbed by said cells.
Non-limiting examples of biocompatible polymers that may be useful in various embodiments include polydioxanone (PDO), polyhydroxlalcanoate, pohhldroxlbutyrate, pol¡ (glycerol sebacato), pohghcóhdo (i.e., poly (glycolol)) (PGA), polyhlide ( that is, poh (lactic) acid (PLA), poly (lactic) -co-poly (glycolic) acid (PLGA), polycaprolactone, or copolymers or derivatives that include these and / or other polymers
In certain embodiments, the biocompatible polymers contemplated may be biodegradable, that is, the polymer is capable of degrading, chemically and / or biologically, within a physiological environment, such as within an organism. As used in the present application, the Biodegradable polymers are those that, when introduced into cells, are broken down by cellular machinery (biologically degradable) and / or by a chemical process, such as hydrolysis (chemically degradable) in components that cells can either reuse or discard without significant toxic effect on the cells. In one embodiment, the blodegradable polymer and its degradation byproducts can be biocompatible.
The particles disclosed in this application may or may not contain PEG. In addition, certain embodiments may be directed to a copolymers containing poh (ester-ether) is, for example, polymers having repeating units linked by ester linkages (e.g., R links<sup>100</sup>-C (O) -OR<sup>1</sup>) and ether bonds (for example, R links<sup>1</sup>-OR<sup>1 </sup>where R<sup>100</sup> and R<sup>1</sup> they are independently hydrocarbyl moieties that may be optionally substituted and that may be the same or different) In some embodiments, a biodegradable polymer, such as a hydrolytable polymer, containing carboxylic acid groups, can be conjugated to poly (ethylene glycol) repeat units to form a poly (ether ether) A polymer (for example, copolymer, for example, block copolymer) containing repeating units of poly (ethylene glycol) can also be referred to as a PEGylated polymer.
For example, a contemplated polymer can be one that spontaneously hydrolyzes upon exposure to water (for example, within a subject), or the polymer can be degraded upon exposure to heat (for example, at temperatures around 37 ° C) Degradation of a polymer can occur at various rates, according to the polymer or copolymer used. For example, The half-life of the polymer (the moment at which 50% of the polymer can be degraded into monomers and / or other non-polymeric moieties) can be of the order of days, weeks, months or years, according to the polymer. Polymers can be biologically degraded, for example, by enzymatic activity or cellular machinery, in some cases, for example, through exposure to a hsozyme (for example, which has a relatively low pH) In some cases, The polymers can be broken down into monomers and / or other non-polymeric moieties that the cells can either reuse or dispose of without significant toxic effect on the cells (for example, the polylactide can be hydrolyzed to form lactic acid, the polyglycol can be hydrolyzed to form glycolic acid, etc)
In some embodiments, the polymers can be polyesters, which include copolymers comprising units of lactic acid and glycolic acid, such as poly (lactic acid-co-glycolic acid) and poh (lactide-co-glycol), referred to collectively in this application as PLGA, and homopolymers comprising glycolic acid units, referred to herein as PGA, and lactic acid units, such as poly-L-lactic acid, poly-D-lactic acid, poly-D, L-acid lactic, poly-L-lactide, poly-D-lactide and poly-D, L-lactide, collectively referred to herein as PLA. In some embodiments, exemplary polyesters include, for example, PEGylated polymers of lactide and ghcolide (for example, PEGylated PLA, PEGylated PGA, PEGylated PLGA, and their derivatives). In some embodiments, polyesters include , for example, polyanhydrides, poh (ortho ester) poly (ortho ester) PEGylated, poly (caprolactone), poly (caprolactone)
PEGylated, polylysine, PEGIIada polllisine, poly (ethyleneimine), poly (PEGylated ethylene amine), poly (L-lactide-co-L-Usine), poly (ester ester), poh (4-hydroxy-Lproline ester), poly [a- (4-aminobutyl) -L-glycolic acid], and its derivatives
In some embodiments, a polymer can be PLGA PLGA is a biocompatible and biodegradable copolymer of lactic acid and glycolic acid, and the various forms of PLGA can be characterized by the ratio of lactic acid glycolic acid Lactic acid can be L-acid lactic acid, lactic acid, or D, L-lactic acid The degradation rate of PLGA can be adjusted by alternating the ratio of lactic acid-glycolic acid In some embodiments, PLGA can be characterized by a molar ratio of lactic acid glycolic acid of about 85.15, about 75:25, about 60 40, about 50 50, about 40 60, about 25 75, or about 15 85 In some embodiments, the ratio molar lactic acid monomers a glycolic acid in the polymer of the particle (for example, the pLGA block copolymer or the PLGA-PEG block copolymer), It can be selected so as to optimize the various parameters such as water absorption, therapeutic agent release and / or polymer degradation kinetics.
In some embodiments, the polymers may be one or more acrylic polymers. In certain embodiments, the acrylic polymers include, for example, acrylic acid and methacrylic acid copolymers, methyl methacrylate copolymers, ethoxylet methacrylates, clanoethyl methacrylate, copolymer amyl alkyl methacrylate, poll (acrylic acid), poly (methacrylic acid), copolymer of methacrylic acid alkylamide, poly (methyl methacrylate), poly (methacrylic acid polyacrylamide, amino alkyl methacrylate copolymer, ghcldyl methacrylate copolymers, pohcyanoacrylates and combinations comprising one or more of the above polymers The acrylic polymer may comprise fully polymerized copolymers of acrylic acid and methacrylic acid esters, with a low content of quaternary ammonium groups.
In some embodiments, the polymers may be cathlonic polymers. In general, the cathlonic polymers are capable of condensing and / or protecting negatively charged strands of nucleic acids (eg, DNA, RNA, or derivatives thereof). The polymers containing such amine. as poly (lysine), pohetilenimlna (PEI) and poh (amidoamine) dendrimers are contemplated for use, in some embodiments, in a disclosed particle
In some embodiments, the polymers can be degradable polyesters bearing cationic side chains. Examples of these polyesters include poh (L-Itivado-co-L-hs¡na), poly (serine ester), poh (4-hydroxy-L-proline ester).
It is contemplated that PEG may have termination, and include an end group, for example, when PEG is not conjugated to a ligand. For example, PEG may terminate in a hydroxy, a methoxy or other alkoxy group, a methyl or other alkyl group, an aryl group, a carboxylic acid, an amine, an amide, an acetyl group, a guamdino group, or an imidazole. Other contemplated end groups include azide, alqulna, maleimide, aldehyde, hydrazide, hydroxylamine, alkoxyamine or thiol moieties.
Those skilled in the art will know the methods and techniques for the PEGylation of a polymer, for example, using EDC (I-ethyl-3- (3-dimethylaminopropyl) carbodiimide hydrochloride) and NHS (N-hydroxysuccinlmide) to react a polymer. with a PEG group ending in an amine, by ring opening polymerization (ROMP) techniques, or the like.
In one embodiment, the molecular weight (or for example, the ratio of molecular weights of, for example, different blocks of a copolymer) of the polymers can be optimized for effective treatment as disclosed in this application. For example, the Molecular weight of a polymer can affect the particle degradation rate (such as when the molecular weight of a biodegradable polymer can be adjusted), the solubility, water absorption and drug release kinetics For example, the molecular weight of the polymer (or for example, the ratio of molecular weights of, for example, different blocks of a copolymer) can be adjusted such that the particle biodegrades in the subject treated within a reasonable period of time (ranging from a few hours to 1-2 weeks, 3-4 weeks, 5-6 weeks, 7-8 weeks, etc.)
A disclosed particle may comprise, for example, a diblock copolymer of PEG and PL (G) A, where, for example, the pEG portion may have a number average molecular weight of about 1000-20 000, for example, about from 2000-20,000, for example, about 2 to about
10,000, and the portion of pL (G) A may have a number average molecular weight of about 5000 to about 20,000, or about 500085
100 000, for example, about 20,000-70,000, for example, about 15,000-50,000.
For example, an exemplary therapeutic nanoparticle is disclosed herein that includes from about 10 to about 99 percent by weight of poly (lactic acid) copolymer - poly (ethylene) ghcol or poh (lactic) acid copolymer copolymer (glycolic) -poly (ethylene) glycol, or about 50 to about
99.75 percent by weight, from about 20 to about 80 percent by weight, from about 40 to about 80 percent by weight, or from about 30 to about 50 percent by weight, or from about 70 to about 90 percent by weight, from about 70 to about 99 75 percent by weight, from about 80 to about 99 75 percent by weight, from about 70 to about 80 percent by weight , or from about 85 to about 95 percent by weight, of copolymer of poh (lactic acid) - poh (ethylene) ghcol or copolymer of poly (lactic acid) -co-poly (glycolic acid) -poly (ethylene) glycol. In some embodiments, a therapeutic nanoparticle comprises about 50 percent by weight, about 55 percent by weight, about 60 percent by weight, about 65 percent by weight, about 70 percent by weight, about 75 percent by weight, about 80 percent by weight, about 85 percent by weight, about 90 percent by weight or about 95 percent by weight copolymer of poly (lactic acid) —poh (ethylene) glycol or copolymer of poly (lactic acid) -co-poly (glycolic acid) -poh (ethylene) ) glycol. Exemplary poh (lactic acid) -poly (ethylene) glycol acid copolymers may include a number average molecular weight ranging from about 15 to about 20 kDa, or from about 10 to about 25 kDa of poly acid ( lactic acid), and a number average molecular weight of about 4 kDa at about 6 kDa, about 4 kDa at about 10 kDa, about 6 kDa at about 10 kDa, or about 2 kDa at about 10 kDa of poh (ethylene) ghcol
In another example, an exemplary therapeutic nanoparticle is disclosed herein that includes from 10 to 99 percent by weight of poly (lactic) -poly (ethylene) ghcol or poly (lactic) -co-acid acid copolymer poly (glycolic) - poly (ethylene) glycol, or 50 to 99 75 percent by weight, 20 to 80 percent by weight, 40 to 80 percent by weight, or 30 to 50 percent by weight, or from 70 to 90 percent by weight, from 70 to 99.75 percent by weight, from 80 to 99 75 percent by weight, 70 to 80 percent by weight, or 85 to 95 percent by weight, of poly (lactic acid) -poly (ethylene) glycol copolymer or poly (lactic acid) -co-poly (glycolic acid) copolymer ) -poli (ethylene) glycol. In some embodiments, a therapeutic nanoparticle comprises 50 percent by weight, 55 percent by weight, 60 percent by weight, 65 percent by weight, 70 percent by weight, 75 percent by weight, 80 percent by weight. weight, 85 percent by weight,
90 percent by weight or 95 percent by weight of copolymer of poly (lactic acid) -poly (ethylene) glycol or copolymer of poly (lactic acid) -co-poly (glycolic) acid -poly (ethylene) glycol. Exemplary poly (lactic) - poh (ethylene) glycol copolymers may include a number average molecular weight ranging from 15 to 20 kDa, or 10 to 25 kDa poh (lactic acid) and a number average molecular weight 4 kDa to 6 kDa, 4 kDa to 10 kDa, 6 kDa to 10 kDa, or 2 kDa to 10 kDa of poly (ethylene) glycol
In some embodiments, the poly (lactic) -poly (ethylene) glycol copolymer can have a number average molecular weight fraction of poly (lactic acid) from about 0 6 to about 0 95, in some forms of embodiment, from about 0 7 to about 0 9, in some embodiments, from about 0.6 to about 0 8, in some embodiments, from about 0 7 to about 0 8, in some forms of realization, from about 0 75 to about 0 85, in some embodiments, from about 0.8 to about 0 9, and in some embodiments, from about 0.85 to about 0 95 It should be understood that the number average molecular weight fraction of poly (lactic acid) can be calculated by dividing the number average molecular weight of the poh (lactic acid) component of the copolymer by the sum of the number average molecular weight of the poh (lactic) acid component and the number average molecular weight of the pol¡ (ethylene) ghcol component
In some embodiments, the poly (lactic) -poly (ethylene) glycol copolymer can have a number average molecular weight fraction of poly (lactic acid) of 0.6 to 0.95, in some embodiments, 0.7 to 0 9, in some embodiments, from 0 6 to 0 8, in some embodiments, from 0.7 to 0 8, in some embodiments, from 0 75 to 0.85, in some embodiments, from 0 8 to 0.9, and in some embodiments, from 0.85 to 0 95
In certain embodiments, the therapeutic nanoparticle comprises 1- (4 - {[4- (dimethylamine) piperidin-1-yl] carbonyl} phenyl) -3- [4- (4,6-dimorfohn- ~ 4- il1,3,5-triazin-2-yl) phenyl] urea and PLA-PEG (in a molar ratio of 16 5) in a weight ratio of about 1: 7 In certain embodiments, The therapeutic nanoparticle comprises 1- (4 - {[4- (dimethylamino) piperidin-1yl] carbonyl} fen¡I) —3— [4— (4,6-dimorfohn-4-yl-1,3,5-triazin —2 — il) phenyl] urea and PLAPEG (in a molar ratio of 16: 5) in a weight ratio of about 14. In certain embodiments, the therapeutic nanoparticle comprises 1- (4 - {[4- (dimethylamine) piperidin-1-yl] carbonyl} phenol) -3- [4- (4,6-dimorfohn-4 -il25 1,3,5-triazin-2-yl) phenyl] urea and PLA-PEG (in a molar ratio of 16 5) in a weight ratio of about 1:14 (therapeutic agent · PLA-PEG) In certain embodiments, The therapeutic nanoparticle comprises 1- (488 {[4— (dimethylamino) piperidin-1-yl] carbonyl) phenolic) -3- [4- (4,6-dimorfolin-4-yl-1,3, 5— trlazin-2-yl) phenyl] urea and PLA-PEG (in a molar ratio of 16 5) in a weight ratio of about 1 '3.
In certain embodiments, the therapeutic nanoparticle comprises
1- (4 - {[4— (dimethylamino) piperldin — 1 — yl] carbonyl} phenyl) —3— [4— (4,6 — dimorfolin — 4 — il—
1,3,5-trlazln-2-l) phenol] urea and PLA-PEG (in a molar ratio of 16 5) in a weight ratio of 1.7. In certain embodiments, the therapeutic nanoparticle comprises 1- (4 - {[4- (dlmetyllamino) piperidin-1-yl] carbonyl} phenyl) -3 [4- (4,6-dimorpholin-4- il-1,3,5-triazin-2-yl) phenol] urea and PLA-PEG (in a molar ratio of 16 5) in a weight ratio of 1 4 In certain embodiments, The therapeutic nanoparticle comprises 1- (4 - {[4 (dimethylamino) pperidin-1-yl] carbonyl} phenyl) -3- [4- (4,6-dimorfolin-4-yl-1,3, 5— triazin-2-yl) phenyl] urea and PLA-PEG (in a molar ratio of 16 5) in a weight ratio of about 1,14 (therapeutic agent PLA-PEG). In certain embodiments, the therapeutic nanoparticle comprises 1- (4 {[4- (dimethylamine) pperidin-1-1] carbonl} feml) -3- [4- (4,6-dimorfohn -4-yl-1,3,5— triazin — 2 — ¡l) phenyl] urea and PLA-PEG (in a molar ratio of 16 5) in a weight ratio of 13
The disclosed nanoparticles may optionally include about 1 to about 50 percent by weight of poly (lactic acid) or poly (lactic acid) -co-poly (glycolic acid) (which does not include PEG), or may optionally include about 1 to about 50 percent by weight, or about 10 to about 50 percent by weight or about 30 to about 50 percent by weight of poh (lactic acid) or poly acid (lactic) - poly (glycolic) co-agglomerate. For example, poly (lactic) acid or poll (lactic) - co-poll (glycol) acid can have a number average molecular weight that ranges from about 5 to about 15 kDa, or from about 5 to about 12 kDa The exemplary PLA can have an average molecular weight in number that varies from about 5 to about 10 kDa The exemplary PLGA can have an average molecular weight in number that varies from around 8 to around 12 kDa
The disclosed nanoparticles may optionally include 1 to 50 percent by weight of poh (lactic) acid or poh (lactic) acid -co-poly (glycolic acid) (which does not include PEG), or may optionally include 1 to 50 percent by weight, or from 10 to 50 percent by weight or from 30 to 50 percent by weight of poly (lactic acid) or poh (lactic acid) -co-poly (glycolic acid) For example, poly (lactic) or poly (lactic) acid —co — poly (glycolic acid) can have an average molecular weight in number ranging from 5 to 15 kDa, or from 5 to 12 kDa. The exemplary PLA can have an average molecular weight in number that varies from 5 to 10 kDa. The exemplary PLGA can have an average molecular weight in number ranging from 8 to 12 kDa
A therapeutic nanoparticle, in some embodiments, may contain from about 10 to about 30 percent by weight, from about 10 to about 25 percent by weight, from about 10 to about 20 percent by weight. , from about 10 to about 15 percent by weight, from about 15 to about 20 percent by weight, from about
fifteen to about 25 percent by weight, from about 20 to about 25 percent by weight, from about 20 to about 30 percent by weight, or from about 25 to about 30 percent by weight of poh (ethylene) ghcol, where the poü (ethylene) glycol can be presented as a copolymer of poh (lactic acid) -poly (ethylene) glycol, copolymer of poh (lactic acid) -co-poly (glycolic) -poly (ethylene) ) glycol ol, or homopolymer of poly (etllen) gllcol In certain embodiments, The polymers of the nanoparticles can be conjugated with a lipid. The polymer can be, for example, a lipid terminated PEG
A therapeutic nanoparticle, in some embodiments, may contain 10 to 30 percent by weight, 10 to 25 percent by weight, 10 to 20 percent by weight, 10 to 15 percent by weight, 15 at 20 percent by weight, 15 to 25 percent by weight, 20 to 25 percent by weight, 20 to 30 percent by weight, or 25 to 30 percent by weight poly (ethylene) glycol, where the poly (ethylene) glycol can be presented as a copolymer of poly (lactic acid) -poly (ethylene) glycol, copolymer of poly (lactic) -co-poly-glycolic acid -poly (ethylene) glycol or homopolymer of poly (ethylene) ghcol.
In certain embodiments, the therapeutic nanoparticle comprises the PLA-PEG polymer, and the PLA-PEG molar ratio is about 5.1. In other embodiments, the therapeutic nanoparticle comprises the PLA-PEG polymer, and the molar ratio of PLA-PEG is 5.1.
Remains of addressing.
In this application, in some embodiments, nanoparticles are provided which may include an optional targeting moiety, that is, a moiety capable of different binding or association, with a biological entity, for example, a membrane component, a receptor cell surface, an antigen, or the like. A remainder of addressing present on the surface of the particle may allow the particle to be located at a particular site of drainage, for example, a tumor, a disease site, a tissue, an organ, a cell type, etc. mode, the nanoparticle can then be "target specific" The drug or other charge can then, in some cases, be released from the particle, and interact locally with the particular addressing site
In one embodiment, a disclosed nanoparticle includes a targeting moiety that is a low molecular weight ligand. The term "binding" or "binding", as used in the present application, refers to the interaction between a corresponding pair of molecules or their portions exhibiting mutual affinity or binding capacity, usually, due to the specific or non-specific interaction or binding, which includes, without limitation, biochemical, physiological interactions, and / or chemical "Biological binding" defines a type of interaction that occurs between pairs of molecules that include proteins, nucleic acids, glycoproteins, carbohydrates, hormones, or the like. The term "binding partner" refers to a molecule that can undergo binding with a particular molecule "Specific binding" refers to molecules, such as polynucleotides, which are capable of binding or recognition of a binding partner (or a limited number of binding partners) to a substantially higher degree than to other similar biological entities In a group of embodiments, the rest of addressing has an affinity ( measured by a dissociation constant) of less than about 1 micromolar, at least about 10 micromolar, or at least about 100 micromolar
In some embodiments, the rest of the address has an affinity (measured by means of a dissociation constant) of less than 1 micromolar, at least 10 micromolar, or at least 100 micromolar.
For example, an addressing portion can cause the particles to be located towards a tumor (for example, a solid tumor), a disease site, a tissue, an organ, a type of cell, etc., within the organism of a subject, in accordance with the rest of the address used. For example, a low molecular weight ligand can be localized to a solid tumor, for example, breast or prostate tumors, or cancer cells. The subject may be a human or non-human animal. Examples of subjects include, without limitation, such a mammal. like a dog, a cat, a horse, a donkey, a rabbit, a cow, a pig, a sheep, a goat, a rat, a mouse, a guinea pig, a hamster, a primate, a human or the like
The contemplation targeting moieties may include small molecules. In certain embodiments, the term "small molecule" refers to organic, natural or artificially created compounds (for example, by chemical synthesis) that have relatively low molecular weight and are not proteins, polypeptides, or nucleic acids Small molecules usually have multiple carbon carbon bonds. In certain embodiments, the small molecules have a size of about 2000 g / mol or less. In some embodiments, the small molecules are about 1500 g / mol or less, or about 1000 g / mol or less. In some embodiments, the small molecules are about 800 g / mol or less, 500 g / mol or less, for example, about 100 g / mol to about 600 g / mol, or about 200 g / mol to about 500 g / mol
In certain embodiments, the small molecules are 2000 g / mol or less in size. In some embodiments, the small molecules are 1500 g / mol or less, or 1000 g / mol or less. In some embodiments, The small molecules are 800 g / mol or less, 500 g / mol or less, for example, 100 g / mol to 600 g / mol, or 200 g / mol to 500 g / mol.
In some embodiments, the low molecular weight ligand is of Formulas I, II, III or IV.
co<sub>2</sub>h
HO ·
HS co<sub>2</sub>h
III co<sub>2</sub>h
<img file="CU20160135A7_D0006.tif" />
H
IV
II and its enantiomers, stereoisomers, rotamers, diastereomeric tautomers, or racemates, where myn are, independently, 0, 1.2 or 3, p is 0 or 1,
R<sup>1</sup>, R<sup>2</sup>, R<sup>4</sup> and R<sup>5</sup> they are independently selected from the group consisting of substituted or unsubstituted alkyl (for example, alkyl,
Ci_6-alkyl, or Ci_4-alkyl), substituted or unsubstituted aryl (eg, phenyl or pyridinyl), and any combination thereof; and R<sup>3</sup> is H or C- | _<sub>6</sub>-alkyl (for example, CH3)
For the compounds of Formulas I, II, III and IV, R<sup>1</sup>, R<sup>2</sup>, R<sup>4</sup> or R<sup>5 </sup>they comprise points of attachment to the nanoparticle, for example, a point of attachment to a polymer that is part of a disclosed nanoparticle, for example, PEG. The point of attachment may be formed by a covalent bond, ionic bond, hydrogen bond, a bond formed by adsorption that includes chemical adsorption and physical adsorption, a bond formed from van der Waals bonds, or forces of dispersion. For example, if R<sup>1</sup>, R<sup>2</sup>, R<sup>4</sup>, or R<sup>5</sup> are defined as an aniline or a Ci_ group<sub>6</sub>-alkyl-NH<sub>2</sub>, any hydrogen (for example, an aml hydrogen) from these functional groups could be removed such that the low molecular weight ligand is covalently linked to the pohmeric matrix (eg, the pEG block of the pohmeric matrix) of the nanoparticle As used in the present application, the term "covalent bond" refers to a bond between two atoms formed by sharing at least one pair of electrons.
In particular embodiments of Formulas I, II, III or IV, R<sup>1</sup>, R<sup>2</sup>, R<sup>4</sup> and R<sup>5</sup> they are, independently, O ^ -e-alkyl or phenyl, or any combination of C-i_6-alkyl or phenyl, which are independently substituted one or more times with OH, SH, NH2 or CO2H, and where the alkyl group can be interrupted by N (H), S, or O In another embodiment, R<sup>1</sup>, R<sup>2</sup>, R<sup>4</sup> and R<sup>5</sup> are, independently, CH2-Ph, (CH<sub>2</sub>) 2-SH, CH<sub>2</sub>-SH, (CH<sub>2</sub>) 2C (H) (NH<sub>2</sub>)CO<sub>2</sub>H, CH<sub>2</sub>C (H) (NH<sub>2</sub>)CO<sub>2</sub>H, CH (NH<sub>2</sub>) CH<sub>2</sub>CO<sub>2</sub>H, (CH<sub>2</sub>)<sub>2</sub>C (H) (SH) CO<sub>2</sub>H, CH<sub>2</sub>-N (H) -Ph, O-CH<sub>2</sub>-Ph, or O- (CH<sub>2</sub>) 2-Ph, where Ph is phenyl, and where each Ph can be independently substituted one or more times with OH, NH<sub>2</sub>, CO<sub>2</sub>H or SH. For these formulas, NH groups<sub>2</sub>, OH or
SH serve as the point of covalent attachment to the nanoparticle (for example, -N (H) -PEG, -O-PEG or -S-PEG).
Examples of ligands include ' <sup>HzN</sup>'co<sub>2</sub>h
<img file="CU20160135A7_D0007.tif" />
ho<sub>2</sub>c
SH
H '<sup>N</sup>T °<sup>2H</sup>
Η Η Η H co<sub>2</sub>h
<img file="CU20160135A7_D0008.tif" />
HO, C
HSSH
CO, H
CO, H
HO<sub>2</sub>C- / s Λ> CO<sub>2</sub>H HO Η Η Η H
Or CO<sub>2</sub>H
R II I <sup>Z</sup>
HO<sub>2</sub>C ιβγ CO<sub>2</sub>H
OH <sup>¿</sup>
<img file="CU20160135A7_D0009.tif" />
CO<sub>2</sub>H
<img file="CU20160135A7_D0010.tif" />
OR
CO<sub>2</sub>H
<img file="CU20160135A7_D0011.tif" />
HO
NH, ho<sub>2</sub>c '
OR
II 'P
OH
Or NH,
<img file="CU20160135A7_D0012.tif" />
<img file="CU20160135A7_D0013.tif" />
CO, H
HO<sub>2</sub>Ck, X<sub>ki</sub>> -CO<sub>2</sub>H <sub>l</sub> N <sup>N</sup> L Η Η Η H
O CO, H
<img file="CU20160135A7_D0014.tif" />
NH, O
CO, H
CO<sub>2</sub>H
CO, H
Ν 'CO<sub>2</sub>H H
CO<sub>2</sub>H
CO<sub>2</sub>H
CO<sub>2</sub>H
J - co<sub>2</sub>h
HO
HO<sub>2</sub>C
Ν 'CO<sub>2</sub>H
CO, H η Η Γη
-CO, H and its enantiomers, stereoisomers, rotamers, tautomers, diastereomers, or racemates, where NH groups<sub>2</sub>, OH or SH serve as the covalent point of attachment to the nanoparticle (for example, -N (H) -PEG, -OPEG, or S-PEG) or indicates the point of attachment to the nanoparticle, where n is 1, 2, 3, 4, 5, or 6, and where R is independently selected from the group consisting of NH<sub>2</sub>, SH, OH, CO<sub>2</sub>H, Ci_6-alkyl substituted with NH<sub>2</sub>, SH, OH, or CO<sub>2</sub>H, and phenyl substituted with NH<sub>2</sub>, SH, OH, or CO<sub>2</sub>H, and where R serves as the covalent point of attachment to the nanoparticle (for example, -N (H) -PEG, -S-PEG, -O-PEG, or CO ^ PEG) These compounds may be further substituted with
NH<sub>2</sub>, SH, OH, CO<sub>2</sub>H, Ci_6-alkyl which is substituted with NH<sub>2</sub>, SH, OH, or CO<sub>2</sub>H, or phenyl that is substituted with NH<sub>2</sub>, SH, OH or CO<sub>2</sub>H, where these functional groups can also serve as the point of covalent attachment to the nanoparticle.
In some embodiments, small molecule targeting moieties that can be used to target cells associated with solid tumors such as prostate or breast cancer tumors include PSMA peptidase inhibitors such as 2-PMPA, GPI5232, VA- 033, femlalkyl phosphonamidates and / or their analogues and their derivatives In some embodiments, Small molecule targeting moieties that can be used to target cells associated with prostate cancer tumors include thiol and indole thiol derivatives, such as 2MPPA and 3- (2-mercaptoethyl) -1 / 7-indole-2 derivatives. -carboxylic acid. In some embodiments, the small molecule targeting moieties that can be used to target cells associated with prostate cancer tumors include hydroxamate derivatives. In some embodiments, small molecule targeting moieties that can be used to target cells associated with prostate cancer tumors include inhibitors based on PBDA and urea, such as ZJ 43, ZJ 11, ZJ 17, ZJ 38 and / or its analogues and its derivatives, androgen receptor targeting agents (ARTA), polyamines, such as putresclna, spermine and spermidine, Inhibitors of the enzyme glutamate carboxylase II (GCPII), also known as NAAG Peptidase or
NAALADasa.
In another embodiment, the targeting moiety may be a ligand that targets the Her2 receptor, EGFR, folate or toll receptors. In another embodiment, the targeting moiety is folate, folic acid or an EGFR binding molecule.
For example, the targeting moieties contemplated may include a nucleic acid, polypeptide, a glycoprotein, a carbohydrate or a lipid. For example, an targeting moiety may be a nucleic acid targeting moiety (e.g., an aptamer, for example, aptamer A10) that binds to a specific cell type marker In general, an aptamer is an ohgonucleotide (for example, DNA, RNA, or an analogue or derivative) that binds to a particular target, such as a polypeptide. In some embodiments, a targeting moiety may be a natural or synthetic ligand for a cell surface receptor, for example, a growth factor, a hormone, LDL (low density lipid, according to its acronym in English), transferrin, etc. A targeting moiety may be an antibody, where said term is intended to include antibody fragments. Characteristic portions of the antibodies, single chain targeting moieties, can be identified, for example, using procedures such as phage display.
The targeting moieties disclosed in this application may, in some embodiments, be conjugated with a disclosed polymer or copolymer (eg, PLA-PEG), and said polymer conjugate may be part of a disclosed nanoparticle
In certain embodiments, the therapeutic nanoparticle has an additionally present ligand, and the ligand is PLAPEG-GL, where GL has the following structure.
<img file="CU20160135A7_D0015.tif" />
In some embodiments, a therapeutic nanoparticle may include a polymer-drug conjugate. For example, a drug can be conjugated with a disclosed polymer or copolymer (for example, PLA-PEG), and said polymer-drug conjugate can be part of a disclosed nanoparticle. For example, a disclosed therapeutic nanoparticle may optionally include about 0.2 to about 30 percent by weight of a PLA-PEG or PLGA-PEG, where the pEG is operated with a drug (eg, PLA-PEG-drug).
In another example, a disclosed therapeutic nanoparticle may optionally include 0-2 to 30 percent by weight of a PLA-PEG or PLGAPEG, where the pEG is functionalized with a drug (for example, PLAPEG-drug).
A disclosed polymer conjugate (for example, a polymer-ligand conjugate) can be formed using any suitable conjugation technique. For example, two compounds such as a direct-moiety or drug moiety and a blocompatible polymer (for example, a biocompatible polymer and a poh (ethylene glycol)) can be conjugated to each other using techniques such as EDC-NHS chemistry (i-eti! - 3— (3— dimethylaminopropll) carbodiimide hydrochloride and A / -hydroxysuccinimide) or a reaction that involves a maleimide or a carboxylic acid, which can be conjugated to an end of a thiol, a similarly functionalized amine or polyether The conjugation of a targeting moiety or drug and a polymer to form a polymer-targeting moiety conjugate or a polymer-drug conjugate can be performed in an organic solvent, such as, without limitation , dichloromethane, acetonitrile, chloroform, dimethylformamide, tetrahydrofuran, acetone, or the like The specific reaction conditions can be determined by those skilled in the art using no more than routine experimentation.
In another group of embodiments, a conjugation reaction can be carried out by reacting a polymer comprising a carboxylic acid functional group (for example, a poh (ester-ether) compound) with a polymer or other moiety (such as a targeting moiety or therapeutic drug) having an amine functionality thereon For example, a targeting moiety, such as a low molecular weight ligand, or the therapeutic agent can be reacted with an amine to form an amine-containing moiety, which can then be conjugated to the carboxylic acid of the polymer. Said reaction can take place as a single stage reaction, that is, the conjugation is carried out without the use of intermediates such as / V-hydroxysuccinimide or a maleimide. In some embodiments, the therapeutic agent can be reacted with an amine-containing linker to form an amine-containing drug, which can then be conjugated to the carboxylic acid of the polymer as described above. The conjugation reaction between the amine-containing moiety. and the carboxylic acid terminated polymer (such as a poly (ester ether) compound) can be achieved, in a group of embodiments, by adding the amine-containing moiety, solubilized in an organic solvent such as (without limitation) dichloromethane, acetonitrile, chloroform, tetrahydrofuran, acetone, formamide, dimethylformamide, pyridines, dioxane, or dimethylsulfoxide, to a solution containing the polymer terminated in carboxylic acid The carboxylic acid terminated polymer may be contained within an organic solvent such as, without limitation, dichloromethane, acetonitrile, chloroform, dimethylformamide, tetrahydrofuran, or acetone The reaction between the amine-containing moiety and the carboxylic acid terminated polymer can occur spontaneously, in some cases Unconjugated reagents can be washed away after such reactions, and the polymer can precipitate into solvents such as, by example, ethyl ether, hexane, methanol, or ethanol In certain embodiments, A conjugate can be formed between an alcohol-containing moiety and carboxylic acid functional group of a polymer, which can be achieved in a manner similar to that described above for the amines and carboxylic acid conjugates.
Preparation of nanoparticles.
Another aspect of this disclosure is directed to systems and methods for the elaboration of the disclosed nanoparticles. In some embodiments, using two or more different polymers (for example, copolymers, for example, block copolymers) in different ratios and producing particles from the polymers (for example, copolymers, for example, block copolymers), the properties of the particles can be controlled. For example, a polymer (for example, copolymer, for example, block copolymer) can include a low molecular weight ligand, while another polymer (for example, copolymer, for example, block copolymer) can
100 selected for its biocompatibility and / or its ability to control the immunogemity of the resulting particle.
In some embodiments, a solvent used in a nanoparticle preparation process (for example, a nanoprecipltaclone process or a nanoemulslon process as described below) may include a hydrophobic acid, which may confer properties suitable to the prepared nanoparticles. using the process As discussed above, in some cases, hldrophobic acid may improve the drug load of the disclosed nanoparticles. Additionally, in some cases, the controlled release properties of the disclosed nanoparticles can be improved by the use of the hldrophobic acid. In some cases, the hydrophobic acid may be included in, for example, an organic solution or an aqueous solution used in the process. In one embodiment, the therapeutic agent is combined with an organic solution and the hydrophobic acid and optionally one or more polymers. The concentration of hldrophobic acid in a solution used to dissolve the therapeutic agent is discussed above, and may vary, for example, from about 1 percent by weight to about 30 percent by weight or from 1 percent by weight to 30 weight percent, etc.
In a group of embodiments, the particles are formed by providing a solution comprising one or more polymers, and contacting the solution with a non-solvent polymer to produce the particle. The solution may be mlscible or immiscible with the non-solvent polymer. For example, a water-miscible liquid such as acetonitrile may contain the polymers, and the particles are formed as acetonitrile contacts water, a non-solvent polymer. , for example, by pouring acetonitrile into the water at a controlled rate. The polymer contained within
101 from the solution, upon contact with the non-solvent polymer, particles such as nanoparticles can then precipitate to form. Two liquids are said to be "immiscible" or not miscible with each other when one is not soluble in the other at a level of at least 10% by weight at ambient temperature and pressure. Usually an organic solution (for example, dichloromethane, acetonitrile, chloroform, tetrahydrofuran, acetone, formamide, dimethylformamide, pyridines, dioxane, dimethyl sulfoxide, etc.) and an aqueous liquid (for example, water, or water containing dissolved salts or other species , cellular or biological media, ethanol, etc.) are immiscible with each other. For example, the first solution can be turned into the second solution (at a suitable rate or rate). In some cases, particles such as nanoparticles can be formed as the first solution comes into contact with the second immiscible liquid; for example, precipitation of the polymer with the contact causes the polymer to form nanoparticles while the first solution is poured into the second liquid, and in some cases, for example, when the introduction rate is carefully controlled and maintained at a relatively index Slow, nanoparticles can form. The control of said particle formation can be optimized without difficulty by one skilled in the art using only routine experimentation.
Properties such as surface functionality, surface loading, size, zeta potential (ζ), hydrophobicity, the ability to control immunogenicity and the like can be highly controlled using a disclosed process. For example, a particle library can be synthesized and subjected to systematic detection in order to identify particles that have a particular polymer ratio that allows the particles to have a specific density of residues (eg, low molecular weight ligands ) present on the surface of the particle This allows the
102 preparation of particles having one or more specific properties, for example, a specific size and density of specific surface debris, without undue degree of effort. Therefore, certain embodiments are directed to systematic detection techniques using said libraries. , like any particle identified using these libraries. In addition, the identification can be produced by any suitable method. For example, the Identification can be direct or indirect, or proceed quantitatively or qualitatively.
In some embodiments, the nanoparticles already formed are functionalized with a targeting moiety using methods analogous to those described for the production of polymerized conjugates functionalized with ligands For example, a first copolymer (PLGA-PEG, poly (lactide-co-ghcolide) and poly (ethylene glycol)) is mixed with the therapeutic agent that contains protonable nitrogen to form particles. The particles are then associated with a low molecular weight ligand to form nanoparticles that can be used for cancer treatment. . The particles can be associated with various amounts of low molecular weight hydands in order to control the surface density of the nanoparticle ligand, so as to alter the therapeutic characteristics of the nanoparticle Additionally, for example, by controlling parameters such as The molecular weight, the molecular weight of the PEG, and the surface charge of the nanoparticle, particles with very precise control can be obtained.
In another embodiment, a nanoemulsion process is provided, such as the process depicted in Figures 1, 2A and 2B For example, a therapeutic agent, a hydrophobic acid, a first polymer (for example, a diblock copolymer such as PLA-PEG or PLGA-PEG,
103 any of which may be optionally bound to a ligand) and an optional second polymer (for example, (PL (G) A-PEG or PLA), may be combined with an organic solution to form a first organic phase. This first phase may include about 1 to about 50% by weight of solids, about 5 to about 50% by weight of solids, about 5 to about 40% by weight of solids, about 1 to about 15% by weight of solids, or about 10 to about 30% by weight solids The first organic phase can be combined with a first aqueous solution to form a second phase. The organic solution may include, for example, toluene, methyl ethyl ketone, acetonitrile, tetrahydrofuran, ethyl acetate, isopropyl alcohol, isopropyl acetate, dimethylformamide, methylene chloride, dichloromethane, chloroform, acetone, benzyl alcohol, Tween ™ 80, Span 80, or similar, and their combinations. In one embodiment, the organic phase may include benzyl alcohol, ethyl acetate and combinations thereof. The second phase may vary from about 0.1 to 50% by weight, or from about 1 to 50% by weight, or from about 5 to 40% by weight, or from about 1 to 15% by weight, of solids The aqueous solution may be water, optionally, in combination with one or more of sodium cholate, ethyl acetate, polyvinyl acetate and benzyl alcohol. In some embodiments, the pH of the aqueous phase may be selected on the basis of pK<sub>to</sub> of the protonated basic therapeutic agent and / or the pK<sub>to</sub> of the hydrophobic acid For example, in certain embodiments, the therapeutic agent, when protonated, may have a first pK<sub>to</sub>, the hydrophobic acid may have a second pK<sub>to</sub>, and the aqueous phase can have a pH equal to one unit of pK<sub>to</sub> between the first pK<sub>to</sub> and the second pK<sub>to</sub> In a particular embodiment, the pH of the aqueous phase can be equal to one unit of pK<sub>to</sub> which is approximately equidistant between the first pK<sub>to</sub> and the second pK<sub>to</sub>.
104
In another embodiment, the first phase may include 1 to 50% by weight solids, 5 to 50% by weight solids, 5 to 40% by weight solids, 1 to 15% by weight solids, or 10 to 30% by weight of solids In one embodiment, the second phase may vary from 0.1 to 50% by weight, or from 1 to 50% by weight, or from 5 to 40% by weight, or from 1 to 15% by weight. weight of solids In a particular embodiment, the pH of the aqueous phase can be equal to one unit of pK<sub>to</sub> which is equidistant between the first pK<sub>to</sub> and the second pK<sub>to</sub>
For example, the organic or oil phase can use a solvent that is only partially miscible with the non-solvent (water). Therefore, when mixed at a sufficiently low ratio and / or when presaturated water is used with organic solvents, the oil phase remains liquid. The oil phase can be emulsified in an aqueous solution, and as liquid droplets, cut into nanoparticles. using, for example, high energy dispersion systems, such as homogenators or somcadores The aqueous portion of the emulsion, otherwise known as the "water phase", it may be a surfactant solution consisting of sodium colalate and presaturated with ethyl acetate and benzyl alcohol In some cases, the organic phase (for example, first organic phase) may include the basic therapeutic agent. Additionally, in certain embodiments, the aqueous solution (eg, first aqueous solution) may include the substantially hydrophobic acid. In other embodiments, both the basic therapeutic agent and the substantially hydrophobic acid can be dissolved in the organic phase.
The emulsion of the second phase in order to form an emulsion phase can be carried out, for example, in one or two emulsion stages. For example, a primary emulsion can be prepared, and then emulsified to form a fine emulsion. The primary emulsion can form, for example,
105 using the simple mixture, a high pressure homogenizer, probe shaker, stir bar, or a rotor stator homogenizer The primary emulsion can be formed as a fine emulsion through the use of, for example, a probe sonicator or a high pressure homogemator, for example, using 1, 2, 3 or more passes through a homogenizer For example, when using a high pressure homogenizer, the pressure used can be from about 2 06 to about 4.13 bar (about 30 to about 60 psi), about 2.75 to about 3.44 bar (about 40 to about 50 psi), about 68.9 to about from 551 5 bar (about 1000 to about 8000 psi), about 137 8 to about 275 7 bar (about 2000 to about 4000 psi), about 275 7 to about 551.5 bar (about 4000 to around 8000 psi), or about 275 7 to about 344.7 bar (about 4000 to about 5000 psi), for example, about 137.8, 172.3, 275 7 or 344.7 bar (about 2000, 2500, 4000 or 5000 psi)
In another example, when a high pressure homogemator is used, the pressure used can be from 2 06 to 4 13 bar (30 to 60 psi), 2.75 to 3 44 bar (40 to 50 psi), 68.9 to 551.5 bar (1000 at 8000 psi), 137.8 to 275 7 bar (2000 to 4000 psi), 275 7 to 551.5 bar (4000 to 8000 psi), or 275.7 to 344.7 bar (4000 to 5000 psi), for example, 137.8, 172.3, 275.7 or 344.7 bar (2000, 2500, 4000 or 5000 Psi)
In some cases, the fine emulsion conditions, which can be characterized by a very high surface to volume ratio of the droplets in the emulsion, can be selected so as to maximize the solubility of the therapeutic agent and the hydrophobic acid and form the desired HIP. certain embodiments, under conditions of fine emulsion, the equilibrium of dissolved components can occur very quickly, it is
106 say, faster than solidification of nanoparticles Consequently, the selection of a HIP based on, for example, the difference of pK<sub>to</sub> between the protonated form of the therapeutic agent and the hydrophobic acid, or the adjustment of other parameters such as the pH of the fine emulsion and / or the pH of the quenching solution, can have a significant effect on the drug load and the properties of release of the nanoparticles when dictating, for example, the formation of a HIP in the nanoparticle, in contrast to the diffusion of the therapeutic agent and / or the hydrophobic acid outside the nanoparticle
In some embodiments, the therapeutic agent and substantially hydrophobic acid may be combined in the second phase before the emulsion of the second phase. In some cases, the therapeutic agent and substantially hydrophobic acid may form a pair of hydrophobic ions before the emulsion of the second phase. In other embodiments, the therapeutic agent and the substantially hydrophobic acid can form a pair of hydrophobic ions during the emulsion of the second phase. For example, the therapeutic agent and the substantially hydrophobic acid can be combined in the second phase in a substantially concurrent manner with the emulsion of the second phase, for example, the therapeutic agent and the substantially hydrophobic acid can be dissolved in separate solutions (for example, two substantially immiscible solutions), which are then combined during the emulsion. In another example, the therapeutic agent and substantially hydrophobic acid can be dissolved in separate miscible solutions that are then fed into the second phase during the emulsion.
Dilution or solvent evaporation may be necessary to complete solvent extraction and solidify particles. For better control over extraction kinetics and a more scaling process,
107 A dilution of solvent can be used by aqueous quenching. For example, the emulsion can be diluted in cold water to a sufficient concentration to dissolve all of the organic solvent in order to form a quenched phase. less partially at a temperature of about 5 ° C or less For example, the water used in the shutdown may be at a temperature below the ambient temperature (for example, around 0 to about 10 ° C, or about 0 to about 5 ° C). In certain embodiments, a shutdown can be selected that has a convenient pH for shutting down the emulsion phase, for example, by improving the properties of the nanoparticles, such as the release profile, or by improving a parameter of the nanoparticles. , such as drug loading. The pH of the shutdown can be adjusted by acid or base titration, for example, or by the appropriate selection of a regulator. In some embodiments, the shutdown pH can be selected based on pK<sub>to</sub> of the protonated basic therapeutic agent and / or the pK<sub>to</sub> of the hydrophobic acid For example, in certain embodiments, the basic therapeutic agent, when protonated, may have a first pK<sub>to</sub>, the hydrophobic acid may have a second pK<sub>to</sub>, and the emulsion phase can be quenched with an aqueous solution that has a pH equal to one unit of pK<sub>to</sub> between the first pK<sub>to</sub> and the second pK<sub>to</sub>. In some embodiments, the resulting shutdown phase may also have a pH equal to one unit of pK<sub>to</sub> between the first pK<sub>to</sub> and the second pK<sub>to</sub>. In a particular embodiment, the pH can be equal to one unit of pK<sub>to</sub> which is approximately equidistant between the first pK<sub>to</sub> and the second pK<sub>to</sub>.
In certain embodiments, the formation of HIP can take place during or after the emulsion, for example, as a result of equilibrium conditions in the fine emulsion. No desire to limit yourself to any
108 In theory, it is believed that organic soluble counterions (i.e., hydrophobic acid) can facilitate the diffusion of the therapeutic agent into a nanoparticle of an emulsion as a result of the formation of HIP Without wishing to limit itself to any theory, HIP can remain in the nanoparticle before solidification of the nanoparticle, since the solubility of the HIP in the nanoparticle is greater than the solubility of the HIP in the aqueous phase of the emulsion and / or in the quenching. For example, when selecting a pH for the quenching that is between the pK<sub>to</sub> of the basic therapeutic agent and the pK<sub>to </sub>of the hydrophobic acid, the formation of ionized therapeutic agent and the hydrophobic acid can be optimized. However, the selection of a pH that is too high may tend to cause diffusion of the hydrophobic acid outside the nanoparticle, while the selection of a pH that is too low may tend to diffuse the therapeutic agent outside the nanoparticle.
In some embodiments, the pH of an aqueous solution used in a nanoparticle formulation process (for example, which includes, without limitation, the aqueous phase, the emulsion phase, the off and the off phase) can be independently selected and it can vary from about 1 to about 3, in some embodiments, from about 2 to about 4, in some embodiments, from about 3 to about 5, in some embodiments, from about 4 to about 6, in some embodiments, from about 5 to about 7, in some embodiments, from about 6 to about 8, in some embodiments, from about 7 to about 9, and in some embodiments, from about 8 to about 10 In certain embodiments, the pH of an aqueous solution used in a nanoparticle formulation process may vary from about 3 to about 4, in some
109 embodiments, from about 4 to about 5, in some embodiments, from about 5 to about 6, in some embodiments, from about 6 to about 7, in some embodiments, from around 7 to about 8, and in some embodiments, from about 8 to about 9
In some embodiments, the pH of an aqueous solution used in a nanoparticle formulation process (for example, which includes, without limitation, the aqueous phase, the emulsion phase, the shutdown, and the off phase) can be independently selected. and may vary from 1 to 3, in some embodiments, from 2 to 4, in some embodiments, from 3 to 5, in some embodiments, from 4 to 6, in some embodiments, from 5 to 7, in some embodiments, from 6 to 8, in some embodiments, from 7 to 9, and in some embodiments, from 8 to 10 In certain embodiments, the pH of an aqueous solution used in a nanoparticle formulation process may vary from 3 to 4, in some embodiments, 4 to 5, in some embodiments, 5 to 6, in some embodiments, 6 to 7, in some embodiments, 7 to 8, and in some embodiments, from 8 to 9.
In some embodiments, not all therapeutic agent is encapsulated in the particles at this stage, and a drug solubilizer is added to the muted phase in order to form a solubilized phase. The drug solubilizer may be, for example, pohsorbate 80 (Tween ™ 80), Tween ™ 20, pollvmll plrrolidone, clclodextran, dodecll sodium sulfate, sodium cholate, diellnltrosamma, sodium acetate, urea, gllcerol, propylene glycol, ghcofurol, poh (etllen) gllcol, bris (pohoxietllenglcol) dodecyl ether, sodium benzoate, sodium salicylate, polyoxyethylene (100) stearyl ether, or combinations thereof For example, Tween ™ 80 can be added to the suspension
110 of nanoparticles turned off, in order to solubilize the free drug and prevent the formation of drug crystals. In some embodiments, a ratio of drug solubilizer to the therapeutic agent containing protonable nitrogen is from about 200: 1 to about 10 1, or in some embodiments, about 100: 1 to about 10.1
In some embodiments, a ratio of drug solubilizer to the therapeutic agent containing protonable nitrogen is 200 1 to 10Ί, or in some embodiments, 100: 1 to 10 1.
The solubilized phase can be filtered in order to recover the nanoparticles
For example, ultrafiltration membranes can be used to concentrate the nanoparticle suspension and remove substantially organic solvent, free drug (i.e., non-encapsulated therapeutic agent), drug solubilizer and other processing aids (surfactants). Exemplary filtration can be performed using a tangential flow filtration system.
For example, using a membrane with a suitable pore size to retain nanoparticles while allowing the passage of solutes, micelles and organic solvent, the nanoparticles can be selectively separated. Exemplary membranes with molecular weight cuts varying from about 300 can be used. at about 500 kDa (~ from about 5 to about 25 nm) Exemplary membranes with molecular weight cuts ranging from 300 to 500 kDa (~ 5 to 25 nm) can be used.
Diafiltration can be performed using a constant volume approach, which means that diafiltration (cold deionized water, for example, at about 0 to about 5 ° C, or 0 to about 10 ° C) can be added to the suspension feed at the same rate as the filtrate is removed from the suspension. In some embodiments, the filtration may include a first filtration using a first temperature of about 0 to
111 about 5 ° C, or 0 to about 10 ° C, and a second temperature of about 20 to about 30 ° C, or 15 to about 35 ° C In some embodiments, filtration may include processing from about 1 to about 30, in some cases, about 1 to about 15, or in some cases, 1 to about 6 diavolumes For example, filtration can include processing from about 1 to about 30, or in some cases, about 1 to about 6 diavolumes, about 0 to about 5 ° C, and processing at least one diavolumen (for example, about 1 to about 15, about 1 to about 3, or about 1 to about 2 diavolumes) at about 20 to about 30 ° C. In some embodiments, the filtration comprises the processing of different diavolumes at different distinctive temperatures.
In some embodiments, the filtration may include a first filtration using a first temperature of 0 to 5 ° C, or 0 to 10 ° C, and a second temperature of 20 to 30 ° C, or 15 to 35 ° C. In some embodiments, filtration may include processing from 1 to 30, in some cases, 1 to 15, or in some cases, 1 to 6 diavolumes. For example, filtration may include processing from 1 to 30, or in some cases, 1 to 6 diavolumes, at 0 to 5 ° C, and processing of at least one diavolumen (for example, 1 to 15, 1 to 3, or 1 to 2 diavolumes) at 20 to 30 ° C
After purification and concentration of the nanoparticle suspension, the particles can be passed through one, two or more sterilization and / or depth filters, for example, using a depth prefilter of ~ 0.2 pm For example, a Sterilization filtration stage may involve filtration of therapeutic nanoparticles using a train
112 of filtration at a controlled rate. In some embodiments, the filtration train may include a depth filter and a sterilization filter.
In another embodiment of the preparation of the nanoparticles, an organic phase is formed consisting of a mixture of the therapeutic agent and polymer (homopolymer, copolymer and copolymer with ligand). The organic phase is mixed with an aqueous phase at a ratio of approximately 1: 5 (oil phase aqueous phase) where the aqueous phase is composed of a surfactant and some dissolved solvent. The primary emulsion is formed by combining two phases under simple mixing or through the use of a stator rotor homogemator. The primary emulsion is then formed as a fine emulsion through the use of a high pressure homogemator. The fine emulsion is then quenched by the addition to dewaxed water with mixing In some embodiments, the emulsion shutdown ratio may be from about 2: 1 to about 40 1, or in some embodiments, about 5: 1 to about 15.1 In some embodiments, the shutdown ratio is approximately 8 5 1 In some embodiments, the shutdown ratio may be 2'1 to 40 1, or in some embodiments, 5: 1 to 15.1. In some embodiments, the shutdown ratio of the emulsion is 8.5 1 Next, a Tween ™ solution (for example, Tween ™ 80) is added to the shutdown in order to achieve approximately 2% Tween ™ in total. This serves to dissolve free non-encapsulated therapeutic agent. The nanoparticles are then isolated through centrifugation or ultrafiltration / diafiltration.
It will be appreciated that the amounts of polymer, therapeutic agent and hydrophobic acid that are used in the preparation of the formulation may differ from those of a final formulation. For example, part of the therapeutic agent may not be fully incorporated into a nanoparticle, and said agent
113 Therapeutic free may, for example, be filtered. For example, in one embodiment, a first organic solution containing about 11 percent by weight of theoretical therapeutic agent load in a first organic solution containing about 9% of a first hydrophobic acid (for example, an acid fatty), a second organic solution containing about 89 weight percent polymer (for example, The polymer may include about 2.5 mole percent of a targeting moiety conjugated to a polymer and about 97 mole percent of PLA-PEG), and an aqueous solution containing about 0 12% of a second hydrophobic acid (for example, a bile acid) can be used in the preparation of a formulation that produces, for example, a final nanoparticle comprising about 2 percent by weight of therapeutic agent, about 97 5 percent by weight of polymer (where the polymer can include about 1 25 mole percent of a polymerization moiety conjugated with a polymer and about 98 75 mole percent of PLAPEG), and about 0 5% total hldrophobic acid. Such processes may provide final nanoparticles suitable for administration to a subject, including about 1 to about 20 percent by weight therapeutic agent, for example, about 1, about 2, about 3, about 4, about 5, about 8, about 10, or about 15 percent of therapeutic agent by weight.
In another embodiment, a first organic solution containing 11 percent by weight of theoretical therapeutic agent load in a first organic solution containing 9% of a first hydrophobic acid (eg, a fatty acid), a second organic solution containing 89 percent by weight polymer (for example, the polymer may include 2.5 mole percent of a targeting moiety conjugated to a polymer and 97 5 per
114 mole percent PLA-PEG), and an aqueous solution containing 0 12% of a second hydrophobic acid (eg, a bile acid) can be used in the preparation of a formulation that achieves, for example, a final nanoparticle comprising 2 percent by weight therapeutic agent, 97 5 percent by weight of polymer (where the polymer may include 1 25 mole percent of a targeting moiety conjugated to a polymer and 98.75 mole percent of PLA-PEG) and 0 5% total hydrophobic acid Such processes may providing final nanoparticles suitable for administration to a subject, including 1 to 20 percent by weight of therapeutic agent, for example, 1,2,3,4,5,8, 10, or 15 percent of therapeutic agent by weight
In certain embodiments, the therapeutic nanoparticle comprises the therapeutic agent 1- (4 - {[4- (dimethylamino) pperperdn-1-yl] carbonyl} phenyl) -3- [4 (4.6 —Dimorfolin — 4 — I — 1,3,5 — triazin — 2 — i) phenyl] urea and pamoic acid in a weight ratio of therapeutic agent to pamoic acid of about 0 1 1, about 0 5.1, around from 1.1, about 1.1 1, about 121, about 1 3: 1, about 1.4.1, about 1.5.1, about 1 6 1, about 1 7: 1, about 1.8: 1, about 1.9 1, about 2 1, about 2 5: 1, about 3: 1, about 3 5Ί, about 4 1, about 4.5.1, about 5.1, about 5.5 1, about 6.1, about 6.5: 1, about 71, about 7 5Ί, about 8 1, about 8.5.1, about 9Ί, about 9.5: 1, or about 10.1 In some embodiments, The therapeutic nanoparticle comprises PLA-PEG (in a molar ratio of 16: 5) in a weight ratio of therapeutic agent to PLA-PEG of about 0 5.1, about 1 1, about
1.2, around T3, about 1 4, about 1.5, about 1 6, about 1: 7, about 18, about 1.9, about 1Ί0, about 1:15, or about 120 In certain embodiments, the
115 Therapeutic nanoparticle comprises the therapeutic agent 1- (4 - {[4 (dimethylamino) pperperdin-1-yl] carboml} phenol) -3- [4- (4,6-dimorphol- 4-yl-1,3,5triazin-2-yl) phenol] urea, pamoic acid, in a weight ratio of therapeutic agent to pamoic acid of about 1.8.1, PLA-PEG (in a molar ratio of 16.5) in a weight ratio of therapeutic agent to PLA-PEG of about 1.3, and PLA-PEG-GL in a weight ratio of PLA-PEG to PLA-PEG-GL of about 44Ί. In other embodiments, the therapeutic nanoparticle additionally comprises a solubilizer. In certain of said embodiments, the solubilizer is polyoxyethylene (100) stearyl ether. In certain embodiments, the therapeutic nanoparticle comprises therapeutic agent 1- (4 - {[ 4- (dimethylamino) piperidin-1l] carbonyl} phenyl) -3- [4- (4,6-dimorpholin-4-yl-1,3,5-triazin-2-yl) phenyl] urea and pamoic acid in a weight ratio of therapeutic agent to pamoic acid of 0 1 1, 0 5.1, 1.1, 1.11, 1 2.1, 1 3Ί, 1 4.1, 1.5: 1, 161, 1.7 1, 18 1, 19 1,
2: 1, 2.5 1, 3Ί, 35 1, 4.1, 4.5.1, 5.1, 5.5Ί, 6: 1, 6 5.1, 7 1, 7 5 1, 8 1, 8 5 1, 9 1,
9.5: 1, or 10.1. In some embodiments, the therapeutic nanoparticle comprises PLA-PEG (in a 16: 5 molar ratio) in a weight ratio of therapeutic agent to PLA-PEG of 0 5: 1, 1: 1, 1: 2, 1: 3, 1: 4, 1: 5, 16, 1 7, 1 8, 1: 9, 1.10, 1Ί5, or 1'20. In certain embodiments, the therapeutic nanoparticle comprises the therapeutic agent 1- (4 - {[4- (dimethylamino) piperidin1-yl] carbonyl} phenyl) -3- [4- (4,6-dimorfolin-4-yl- 1,3,5-triazin-2-l) phenyl] urea, pamoic acid, in a weight ratio of therapeutic agent to pamoic acid of 1.8Ί, PLA-PEG (in a 16.5 molar ratio) in a ratio in therapeutic agent weight to PLA-PEG of 13, and PLA-PEG-GL in a weight ratio of PLA-PEG to PLA-PEG-GL of 44: 1. In other embodiments, the therapeutic nanoparticle additionally comprises a solubilizer In
116 Certain of said embodiments, the solubilizer is polyoxyethylene (100) stearyl ether.
In certain embodiments, the therapeutic nanoparticle comprises the therapeutic agent 1- (4 - {[4- (dimethylamine) piperine-1-yl] carboml} phenyl) -3- [45 (4, 6-dimorfolin-4-yl-1,3,5-triazin-2-yl) phenyl] urea and oleic acid in a weight ratio of therapeutic agent to oleic acid of 0 1Ί, about 0 5 1, about T1 , about 1.11, about 1 2Ί, about 13 1, about 1.4Ί, about 1.51, about 1 6: 1, about 1 7Ί, about 1.8 1, about 1.9 1, about 2.1, about 2 5 1, about 3 1, about 3 5.1, about 4.1, about 4 5 1, about 5Ί, about 5 5Ί, about 6.1, about 6 5: 1, about 7: 1, about 7.5.1, about 8 1, about 8 5 1, about 9Ί, about 9 5 1, or about 101. In some embodiments, the therapeutic nanoparticle comprises PLA-PEG (in a molar ratio of 16 5) in a weight ratio of therapeutic agent to PLAPEG of about 0.5.1, about 1.1, about 1.2, about 1 3, about 1 4, about T5, about 1.6, about 17, about 18, about 19, about 1:10, about 111, about 1:12, about 1.13, about 1.14 , about 1 15, about 1 20, about 1.25, or about 1:30 In certain embodiments, the therapeutic nanoparticle comprises the therapeutic agent 1- (4 {[4— (dimethylamino) piperidin-1-yl] carbonyl} fenll) —3— [4— (4.6 —Dimorpholin-4-yl-1,3,5-triazin-2-yl) phenyl] urea, oleic acid, in a weight ratio of therapeutic agent to oleic acid of about 1Ί.6, PLA-PEG (in a 16.5 molar ratio) in a weight ratio of therapeutic agent to PLA-PEG of about 1: 7, and PLA-PEG-GL in a weight ratio of PLA-PEG to PLA-PEG-GL of about 46Ί In some embodiments, the
117 Therapeutic nanoparticle also comprises colic acid. In other embodiments, the therapeutic nanoparticle additionally comprises a solubilizer. In certain of said embodiments, the solubilizer is polysorbate 80. In certain embodiments, the therapeutic nanoparticle comprises the therapeutic agent 1- (4 - {[4- (d ¡melamine) piperidin-111] carbon il} fen ¡I) —3— [4— (4.6 —Dlmorfoli n — 4 — I — 1,3,5 — triazi n — 2 — il) fen i Ijurea and oleic acid in a weight ratio of therapeutic agent to oleic acid of 0 1.1, 0 5: 1, 1.1, 1 1Ί, 12 1, 1 3.1, 1.4.1, 1 5: 1, 1.6: 1, 1 7.1, 1.8.1, 1.9 1, 2 1, 2 5 1, 3-1, 3 5Ί, 4Ί, 4.5. 1, 5.1, 5.5.1, 6 1, 6.5.1, 7: 1, 7.5.1, 8.1, 8.5: 1, 9 1, 9 5 1, or
10Ί. In some embodiments, the therapeutic nanoparticle comprises PLA-PEG (in a 16.5 molar ratio) in a weight ratio of therapeutic agent to PLA-PEG of 0.5.1, 1.1, 1: 2, 1 3, 1 4, 1 5, 1 6, 1 7, 1 8, 1.9, 1.10, 1.11, 1:12, 1.13, 1:14, 115, 1 20, 1.25, or 1:30. In certain embodiments, the therapeutic nanoparticle comprises therapeutic agent 1- (4<sup>15</sup> {[4- (d¡met¡lam¡no) p¡perid¡n-1-¡l] carbon¡l} fen¡l) -3- [4- (4,6-dimorfohn-4-il-1 , 3,5— triazin-2-yl) phenyljurea, oleic acid in a weight ratio of therapeutic agent to oleic acid of 61, PLA-PEG (in a 16.5 molar ratio) in a weight ratio of therapeutic agent to PLA -PEG of 1 7, and PLA-PEGGL in a weight ratio of PLA-PEG to PLA-PEG-GL of 46 1 In some embodiments, the therapeutic nanoparticle additionally comprises colic acid In other embodiments, the therapeutic nanoparticle additionally comprises a solubilizer In certain of said embodiments, the solubilizer is polysorbate 80
In some embodiments, the therapeutic nanoparticle is a nanoparticle prepared by emulsifying a first organic phase comprising a first polymer, a therapeutic agent and a substantially hydrophobic acid, so as to form an emulsion phase, the
118 shutdown of the emulsion phase so as to form an off phase; and filtration of the quenched phase in order to recover the therapeutic nanoparticles, where the therapeutic agent is 1- (4 - {[4- (dimethylamine) piperidin-1yl] carbonyl} phenyl) —3— [4— (4,6-dimorfolin-4-yl-1,3,5-triazin-2-yl) phenyl] urea or one of its pharmaceutically acceptable salts.
In other embodiments, the therapeutic nanoparticle is a nanoparticle prepared by the process of combining a first organic phase with a first aqueous solution to form a second phase, the emulsion of the second phase in order to form an emulsion phase, wherein the emulsion phase comprises a first polymer, therapeutic agent, and a substantially hydrophobic acid, the quenching of the emulsion phase so as to form a muted phase, and filtration of the off phase in order to recover the therapeutic nanoparticles, where the therapeutic agent is 1 (4 - {[4— (dimethylamine) piperine-1-yl] carbonyl} phenyl) —3— [4— (4,6 — dimorfohn — 4 — il—
1,3,5-triazin-2-yl) feml] urea, the first organic phase comprises the therapeutic agent and pamoic acid in a weight ratio of therapeutic agent to pamoic acid of about 11 1 and PLA-PEG (in a molar ratio of 16 5) in a weight ratio of therapeutic agent to PLA-PEG of about 1.3 in an organic solvent comprising benzyl alcohol and ethyl acetate in a weight ratio of benzyl alcohol to ethyl acetate of about 1.25, and the first aqueous solution comprises a pohoxyethylene (100) stearyl ether dissolved in benzyl alcohol in a weight ratio of 0.005.1, and the combination of the first organic phase and the first aqueous phase in a weight ratio of about 1.5 to form a second phase; the emulsion of the second phase formed therein and the quenching of the emulsion phase with citric acid, 0 1 M, in aqueous solution at pH 4.5, and the concentration of the resulting product
119
The therapeutic agent may include alternative forms such as pharmaceutically acceptable salt forms, free base forms, hydrates, isomers and their prodrugs.
An effective amount, when used in connection with a compound of this invention, is an amount effective to inhibit mTOR or PI3K in a subject.
The therapeutic agent of the present invention exhibits an mTOR inhibitory activity (target or rapamycin target in mammalian cells, according to its acronym in English), and therefore, the therapeutic nanoparticle prepared from the therapeutic agent can be used to inhibit abnormal cell growth in which mTOR plays a role Consequently, The therapeutic nanoparticle of the present invention is effective in the treatment of disorders with which abnormal cell growth actions of mTOR are associated, such as restenosis, atherosclerosis, bone disorders, arthritis, diabetic retinopathy, psoriasis, benign prosthetic hypertrophy, atherosclerosis, inflammation , angiogenesis, immune disorders, pancreatitis, kidney disease, cancer, etc. In particular, The compounds of the present invention possess excellent inhibitory effects of cancer cell growth, and are effective in the treatment of cancers, preferably all types of solid cancer and malignant lymphomas, and especially, leukemia, skin cancer, cancer. Bladder, breast cancer, uterine cancer, ovarian cancer, prostate cancer, lung cancer, colon cancer, pancreas cancer, kidney cancer, gastric cancer, brain tumor, advanced renal cell carcinoma, acute lymphoblastic leukemia, malignant melanoma, soft tissue or bone sarcoma, etc.
The therapeutic agent of the present invention exhibits PI3 kinase inhibitory activity, and therefore, the therapeutic nanoparticle prepared from the therapeutic agent can be used to inhibit growth.
120 Abnormal cell in which PI3 kinases play a role Accordingly, the therapeutic agent of the present invention is effective in the treatment of disorders with which abnormal cell growth actions of PI3 kinases, such as restenosis, atherosclerosis, disorders are associated bone, arthritis, diabetic retinopathy, psoriasis, benign prosthetic hypertrophy, atherosclerosis, inflammation, angiogenesis, immune disorders, pancreatitis, kidney disease, cancer, etc. In particular, the therapeutic nanoparticle of the present invention has excellent inhibitory effects on the growth of cancer cells, and they are effective in the treatment of cancers, preferably all types of solid cancer and malignant lymphomas, and in particular, leukemia, skin cancer, bladder cancer, breast cancer, uterine cancer, ovarian cancer, prostate cancer, lung cancer, colon cancer, pancreas cancer, kidney cancer, gastric cancer, brain tumor, head and neck cancer, for example, cancer of the following regions, oral cavity, pharynx, larynx, sinuses and nasal cavity, or salivary glands), advanced renal cell carcinoma, acute hnfoblastic leukemia, malignant melanoma, soft tissue or bone sarcoma, etc.
The therapeutic agent is also useful in the treatment of a type of cancer associated with PTEN deficiency. The phosphate and tensin homolog deleted on chromosome 10 (PTEN) is a lipid and protein phosphatase, and it functions as a phosphatase protein by dephosphorylation of protein substrates in serine, threonine and tyrosine residues. PTEN also functions as a lipid phosphatase through the dephosphorylation of phanoinosital 3,4,5 triphosphate (PIP3), a key signaling component of phosphoinositol-325 kinase (PI3-kinase) PTEN is a known tumor suppressor that has been implicated in cellular processes which include the mediation of the MAP kinase signaling pathway, centromeric maintenance, and is involved
121 in the DNA repair pathways through the mediation of Rad51 gene expression. Tumor suppressors play roles in maintaining genome stability, and it is known that the loss of function of these tumor suppressors produces genomic instability. Genetic instability represents an inevitable consequence of the loss of tumor suppressors. In fact, the frequent occurrence of PTEN mutation and genetic instability is found in a wide range of cancer types with PTEN deficiency. It is also known that several tumor cell lines are deficient in PTEN. Similarly, it is known that several tumor cell lines are deficient in PTEN. Embryonic stem cells devoid of PTEN were shown to exhibit DNA repair control point defects in response to ionizing radiation, which results in the accumulation of unrepaired chromosomes with ruptures and double-stranded DNA spaces. Other mechanistic studies revealed that the G2 control point defects observed may result from the functional alteration of the control point protein, CHK1, due to the lack of PTEN PTEN deficiency directly elevates the activity of AKT kinase, which triggers CHK1 phosphorylation. Phosphorylated CHK1 undergoes ubiquitination, which prevents its entry into the nucleus. The sequestration of CHK1 in the cytoplasm alters its normal function in the initiation of a DNA repair control point. In addition, the inactivation of CHK1 in PTEN-deficient cells leads to the accumulation of double stranded DNA breaks. Examination of the location of CHK1 in a large panel of primary human breast carcinomas indicates a higher cytoplasmic level of CHK1 in tumor cells with lower PTEN expression and high AKT phosphorylation. Additionally, aneuploidy was frequently observed in both human breast carcinomas with low PTEN expression and in prosthetic intraepithelial neoplasia of mice
122
Think sup +/-. These in vitro and in vivo observations indicate that PTEN deficiencies are involved in the initiation of an oncogenic signaling process by causing the dysfunction of important control point proteins. The cytoplasm has been considered the primary site of PTEN for the production of its tumor suppressor function, and the ability of PTEN to block the quinase pathway pl3 through its phosphatase activity has been considered the key mechanism by which PTEN suppresses the Carcinogenesis While the cellular distribution of PTEN varies in different tissues, endogenous PTEN in neurons, gliomas and thyroid cells, the pancreas and the skin is most often found in the nuclear compartment. Increasing evidence indicates that malignant diseases may be accompanied by the translocation of PTEN from the nucleus to the cytoplasm. Inactivation of PTEN, or by mutations, deletions or hypermethylation of the promoter. , has been identified in a wide variety of tumors. The therapeutic agent of the present invention is a method of treating a type of cancer associated with a PTEN deficiency, such as endometrial carcinoma, glioblastoma (glioblastoma multiforme / anaplastic astrocytoma), prostate cancer, renal cancer, cell lung carcinoma small, meningioma, head and neck cancer, thyroid cancer, bladder cancer, colorectal cancer, breast cancer, melanoma.
Pharmaceutical formulations
The nanoparticles disclosed in this application may be combined with pharmaceutically acceptable carriers to form a pharmaceutical composition, in accordance with another aspect. As one skilled in the art will appreciate, carriers can be selected based on the route of
123 administration, as described below, the location of the white tissue, the drug supplied, the course of drug delivery time, etc.
The pharmaceutical compositions may be administered to a patient or subject by any means known in the art, including oral and parenteral routes. The terms "patient" or "subject", as used in the present application, are interchangeable, and refer to humans, as well as nonhumans, which include, for example, mammals, birds, reptiles, amphibians and fish. For example, nonhumans can be mammals (e.g., rodent, rat, mouse, rabbit, monkey, dog, cat, primate, or pig) In certain embodiments, parenteral pathways are desirable, since they avoid contact with the digestive enzymes found in the feed channel According to said embodiments, the compositions of the invention can be administered by injection (for example, intravenous, subcutaneous or intramuscular, intraperitoneal injection), rectally, vaginally, topically (such as by powders, creams, ointments or drops), or by inhalation (for example, by spraying)
In a particular embodiment, the nanoparticles are administered to a subject in need, systemically, for example, by injection or IV infusion.
Injectable preparations, for example, sterile injectable oil or aqueous suspensions, can be formulated according to the known technique using suitable wetting or dispersing agents. The sterile injectable preparation may also be a sterile injectable solution, suspension, or emulsion in a solvent or diluent. non-toxic, parenterally acceptable, for example, as a solution in 1,3-butanediol Among the acceptable solvents and vehicles that can be used are water, compound sodium chloride solution, US P (Pharmacopoeia
124 of the United States) and isotomic sodium chloride solution In addition, sterile fixed oils, such as a solvent or suspending medium, are conventionally employed. For this purpose, any soft fixed oil that includes synthetic mono- or diglycerides can be used. In addition, fatty acids such as oleic acid are used in the preparation of injectable products. In one embodiment, the conjugate of the invention is suspended in a carrier liquid comprising 1% (w / v) sodium carboxymethyl cellulose and 0.1 % (v / v) of Tween ™ 80. Injectable formulations can be sterilized, for example, by filtration through a bacteria-retentive filter, or by incorporating sterilizing agents in the form of sterile solid compositions that can be dissolved or dispersed in sterile water or other sterile injectable medium before use.
Solid pharmaceutical forms for oral administration include capsules, tablets, pills, powders and granules. In such solid pharmaceutical forms, the encapsulated or non-encapsulated conjugate is mixed with at least one pharmaceutically acceptable Inert carrier or excipient, such as sodium citrate. or dicalcium phosphate, and / or (a) fillers or extenders such as starches, lactose, sucrose, glucose, mannitol and silicic acid, (b) binders such as, for example, carboxymethylcellulose, alginates, gelatin, pollvimlpirrohdinone, sucrose and acacia, (c) humectants such as glycerol, (d) disintegrating agents such as agar-agar, calcium carbonate, potato or cassava starch, alginic acid, certain silicates and sodium carbonate , (e) solution retarding agents, such as paraffin, (f) absorption accelerators, such as quaternary ammonium compounds, (g) wetting agents such as, for example, cetyl alcohol and glycerol monostearate, (h) absorbents such as kaolin and bentonite clay, and (i) lubricants such as talc, calcium stearate, magnesium stearate, solid polletilenghcoles,
125 sodium lauryl sulfate, and mixtures thereof. In the case of capsules, tablets and tablets, the pharmaceutical form may also comprise pH regulating agents.
It will be appreciated that the exact dosage of a nanoparticle containing the therapeutic agent is selected by the individual physician in view of the patient to be treated; In general, the dosage and administration are adjusted so as to provide an effective amount of the therapeutic agent nanoparticle to the treated patient. As used in the present application, the effective amount of a nanoparticle containing a therapeutic agent containing protonable nitrogen is refers to the amount necessary to produce the desired biological response As will be appreciated by those skilled in the art, The effective amount of a nanoparticle containing the therapeutic agent may vary according to factors such as the desired biological assessment criteria, the drug to be supplied, the white tissue, the route of administration, etc. For example, the effective amount of a nanoparticle containing the therapeutic agent could be the amount that achieves a reduction in tumor size by a desired amount over a desired period of time. Additional factors that may be considered include the severity of the disease, age, weight and gender of the treated patient, diet, time and frequency of administration, drug combinations; reaction sensitivities, and tolerance / response to therapy.
The nanoparticles can be formulated in unit dosage form, for ease of administration and uniformity of dosage. The term "unit dosage form", as used in the present application, refers to a physically separate unit of nanoparticle appropriate for the patient to be treated. However, it will be understood that the total daily use of the
126 Compositions will be decided by the attending physician, within the scope of the solid medical criteria. For any nanoparticle, the therapeutically effective dose can be estimated imcially either in cell culture assays, or in animal models, usually mice, rabbits, dogs or pigs The animal model is also used to achieve a desirable concentration range and route of administration. Such information can then be used to determine useful doses and routes of administration in humans. The therapeutic efficacy and toxicity of nanoparticles can be determined by means of of conventional pharmaceutical procedures, in cell cultures or experimental animals, for example, ED<sub>50</sub> (the dose that is therapeutically effective in 50% of the population) and the LD<sub>50</sub> (the lethal dose for 50% of the population) The dose ratio of toxic to therapeutic effects is the therapeutic index, which can be expressed as the LD ratio<sub>5O</sub>/ ED<sub>5</sub>o Pharmaceutical compositions that exhibit large therapeutic indices may be useful in some embodiments. Data obtained from cell culture assays and animal studies can be used in the formulation of a dosage range for human use.
In one embodiment, the compositions disclosed in this application may include about 10 ppm of palladium or less, about
8 ppm of palladium or less, or about 6 ppm of palladium or less For example, a composition is provided here that includes nanoparticles having a polymer conjugate where the composition has less than about 10 ppm of palladium or less.
In one embodiment, the compositions disclosed in this application may include 10 ppm of palladium or less, 8 ppm of palladium or less, or 6 ppm of palladium or less. For example, a
127 composition that include nanoparticles that have a polymer conjugate where the composition has less than 10 ppm of palladium or less
In some embodiments, a composition suitable for freezing is contemplated, which includes nanoparticles disclosed in this application and a solution suitable for freezing, for example, a sugar such as a mono, di, or polysaccharide, for example, sucrose and / or a trehalose, and / or a salt and / or a cyclodextrin solution that is added to the nanoparticle suspension Sugar (for example, sucrose or trehalose) can work, for example, as a cryoprotectant to prevent aggregation of particles with freezing. For example, a nanoparticle formulation comprising a plurality of the disclosed nanoparticles, sucrose, an ionic halide and water is provided in this application, where the nanoparticles / sucrose / water / Ionic halide are about 340% / 10-40% / 20-95% / 0 1-10% (p / p / p / p) or about 5-10% / 10-15% / 8015 90% / 1—10% (p / p / p / p) By For example, said solution may include nanoparticles as disclosed in this application, about 5% to about 20% by weight of sucrose and an ionic halide such as sodium chloride, in a concentration of about 10-100 mM In another example, a nanoparticle formulation comprising a plurality of the disclosed nanoparticles, trehalose, cyclodextrin and water, where the nanoparticles / trehalose / water / clclodextrin are about 340% / 1-25% / 20-95% / 1-25% (w / w / w / w) or about 5-10% / 1-25% / 8090% / 10-15% (p / p / p / p)
In another example, a nanoparticle formulation comprising a plurality of the disclosed nanoparticles, sucrose, an ionic halide and water is provided in the present application, where the nanoparticles / sucrose / water / ionic halide are 3-40% / 10-40 % / 20-95% / 0 1128
10% (p / p / p / p) or 5—10% / 10—15% / 80—90% / 1—10% (ρ / ρ / ρ / ρ) For example, said solution may include nanoparticles such as disclosed in this application, 5% to 20% by weight of sucrose and an ionic halide such as sodium chloride, in a concentration of 10-100 mM. In another example, a nanoparticle formulation comprising a plurality of the disclosed nanoparticles, trehalose, cyclodextrin and water is provided in the present application, where the nanoparticles / trehalose / water / clclodextrin are 3-40% / 1-25% / 2095 % / 1—25% (p / p / p / p) or 5-10% / 1-25% / 80-90% / 10-15% (p / p / p / p)
For example, a contemplated solution may include nanoparticles as disclosed in this application, about 1% to about 25% by weight of a disaccharide such as trehalose or sucrose (for example, about 5% to about 25% trehalose or sucrose, for example, about 10% trehalose or sucrose, or about 15% trehalose or sucrose, for example, about 5% sucrose) by weight) and a cyclodextrin such as β-cyclodextrin, at a concentration of about 1% to about 25% by weight (for example about 5% to about 20%, for example 10% or about 20% by weight, or about 15% to about 20% by weight of cyclodextrin) The formulations contemplated may include a plurality of the disclosed nanoparticles (eg, nanoparticles having PLA20 PEG and an active ingredient), and about 2% to about 15% by weight (or about 4% at about 6% by weight, for example, about 5% by weight) of sucrose and about 5% by weight to about 20% (for example, about 7% by weight to about 12% by weight, for example, about 10% by weight) of a cyclodextrin, for example, HPbCD)
In another example, a contemplated solution may include nanoparticles as disclosed in this application, 1% to 25% by weight of a dlsaccharide such as trehalose or sucrose (eg, 5% to 25% trehalose or sucrose,
129 for example, 10% trehalose or sucrose, or 15% trehalose or sucrose, for example 5% sucrose) by weight) and a cyclodextrin such as β-cyclodextrma, in a concentration of 1% to 25% by weight (per example 5% to 20%, for example, 10% or 20% by weight, or 15% to 20% by weight of cyclodextrin) The formulations contemplated may include a plurality of the disclosed nanoparticles (eg, nanoparticles having PLA-PEG and an active ingredient), and 2% to 15% by weight (or 4% to 6% by weight, for example, 5% by weight) of sucrose and 5% by weight to 20% (for example, 7% by weight to 12% by weight, for example 10% by weight) of a cyclodextrin, for example,
HPbCD)
The present disclosure relates, in part, to lyophilized pharmaceutical compositions that, when reconstituted, have a minimum amount of large aggregates. Such large aggregates may have a size of about 0.5 pm or greater, about 1 pm or greater, about 10 pm or greater, and may be undesirable in a reconstituted solution. Aggregate sizes can be measured using a variety of techniques that include those indicated in the United States Pharmacopeia (“USP”) at <788>, incorporated in this application by reference. These tests outlined in USP <788> include a light dimming particle count test, microscopic particle count test, laser diffraction and single particle optical detection In one embodiment, the particle size in a sample determined is measured using laser diffraction and / or single particle optical detection
USP <788> for a light dimming particle count test establishes guidelines for sampling particle sizes in a suspension. For solutions with an amount less than or equal to 100 ml, the preparation meets the test if the number
130 Average particles present do not exceed 6000 per container, which are> 10 pm, and 600 per container that are S25 pm.
As outlined in USP <788>, the microscopic particle count test establishes guidelines for the determination of particle quantities using a binocular microscope adjusted to a magnification of 100 ± 10x which has an ocular micrometer. An ocular micrometer is a circular diameter graticle consisting of a circle divided into quadrants with black reference circles denoting 10 pm and 25 pm when viewed at 100x magnification. A linear scale is provided below the graticule. The number of particles with reference to 10 pm and 25 pm is visually adjusted. For solutions with an amount less than or equal to 100 ml, the preparation meets the test if the average number of particles present does not exceed 3000 per container that are> 10 pm, and 300 per container, which are> 25 pm.
In some embodiments, an aqueous sample of 10 ml of a disclosed composition, with reconstitution, comprises less than 600 particles per ml that are larger than or equal to 10 microns, and / or less than 60 particles per ml that have a size greater than or equal to 25 microns.
Dynamic light scattering (DLS, according to its acronym in English) can be used for particle size measurement, although it is based on Brownlan movement so that the technique may not detect some larger particles. Laser diffraction is based on differences in the refractive index between the particle and the suspension medium. The technique is able to detect particles in the submlchronic to millimeter range. Relatively small amounts (for example, about 1-5% in weight) of larger particles can be determined in suspensions of
131 nanoparticles. Optical single particle detection (SPOS) uses light dimming from dilute suspensions in order to quantify individual particles of about 0.5 pm. By knowing the particle concentration of the measured sample, the percentage by weight of aggregates or concentration can be calculated of aggregates (particles / ml).
The formation of aggregates can take place during lyophilization due to dehydration of the surface of the particles. This dehydration can be avoided using lioprotectors, such as disaccharides, in the suspension, before liofihzaclone. Suitable disaccharides include sucrose, lactulose, lactose, maltose, trehalose, or cellobiose, and / or mixtures thereof Other disaccharides contemplated include kojibiosa, mgerosa, isomalt, β, β-trehalose, α, β-trehalose, soforose, laminaribiosa, gentiobiosa, turanosa, maltulosa, palatlnosa, gentiobiulosa, mannobiasa, melibiosa, melibiulosa, rutinosa, rutinulosa and xilobiosa. The reconstitution shows equivalent distributions of DLS size compared to the initial suspension. However, laser diffraction can detect particles of> 10 pm in size in some reconstituted solutions. Additionally, SPOS can also detect particles of a size of> 10 pm in a concentration higher than that of the FDA guidelines [Food and Drug Administration of the United States] (10<sup>4</sup>-10<sup>5</sup> particles / ml for particles> 10 pm)
In some embodiments, one or more ionic halide salts may be used as an additional sugar-free lioprotector, such as sucrose, trehalose or mixtures thereof. Sugars may include disaccharides, monosaccharides, trisaccharides and / or polysaccharides, and may include other excipients. , for example, glycerol and / or surfactants. Optionally, a cyclodextrin may be included as an additional lioprotective. Cyclodextrin
132 it can be added in place of the ionic halide salt Alternatively, the cyclodextrin can be added in addition to the ionic halide salt.
Suitable salts of ionic halide may include sodium chloride, calcium chloride, zinc chloride, or mixtures thereof. Additional suitable salts of ionic halide include potassium chloride, magnesium chloride, ammonium chloride, sodium bromide, calcium bromide, zinc bromide, potassium bromide, magnesium bromide, ammonium bromide, sodium iodide, iodide of calcium, zinc iodide, potassium iodide, magnesium iodide or ammonium iodide, and / or mixtures thereof. In one embodiment, about 1 to about 15 percent by weight of sucrose can be used with an ionic halide salt. In one embodiment, 1 to 15 percent by weight of sucrose can be used with an ionic halide salt. In one embodiment, the lyophilized pharmaceutical composition may comprise about 10 to about 100 mM sodium chloride. In one embodiment, The lyophilized pharmaceutical composition may comprise 10 to 100 mM of sodium chloride. In another embodiment, the lyophilized pharmaceutical composition may comprise about 100 to about 500 mM of divalent ionic chloride salt, such as calcium chloride or zinc chloride. In another embodiment, the lyophilized pharmaceutical composition may comprise 100 to 500 mM salt of divalent ionic chloride, such as calcium chloride or zinc chloride. In yet another embodiment, the suspension to be lyophilized may additionally comprise a cyclodextrin, for example, about 1 to about 25 weight percent of cyclodextrin may be used. In yet another embodiment, the suspension for lyophilization may additionally comprise a cyclodextrin, for example, may 1 to 25 weight percent cyclodextrin be used.
133
A suitable cyclodextrin may include α-cyclodextrin, β-cyclodextrin, γ-cyclodextrin, or mixtures thereof. Examples of cyclodextrins contemplated for use in the compositions disclosed in this application include hydroxypropyl-p-cyclodextrin (HPbCD), hydroxyetii-p-cyclodextrin, sulfobutyl ether-p-cyclodextrin, methyl-p-cyclodextrin, dimethyl-P-cyclodextrin, carboxymethyl-pcchlodextrin, carboxymethyl ethyl
-β-cyclodextrin, diethyl-β-cyclodextrin, tri-O-alkyl-β-cyclodextrma, glocoslpc, cyclodextrin and maltosyl-p-cyclodextrin. In one embodiment, about 1 to about 25 weight percent trehalose (for example about 10% to about 15%, for example 5 to about 20% by weight) with cyclodextrin can be used in one form. embodiment, the lyophilized pharmaceutical composition may comprise about 1 to about 25 percent by weight of β-cyclodextnna. An exemplary composition may comprise nanoparticles comprising PLA-PEG, an active ingredient / therapeutic agent, about 4% to about 6% (for example about 5% by weight) of sucrose and about 8 to about 12 percent by weight (for example about 10 percent by weight) of HPbCD In a form of embodiment, 1 to 25 weight percent trehalose (for example, 10% to 15%, for example, 5 to 20% by weight) with cyclodextrin can be used. In one embodiment, the lyophilized pharmaceutical composition may comprise 1 to 25 percent by weight of β-cyclodextrin. An exemplary composition may comprise nanoparticles comprising PLA-PEG, an active ingredient / therapeutic agent, 4% to 6% (for example 5% by weight) sucrose, and 8 to 12 percent by weight (for example 10 percent by weight) of HPbCD
In one aspect, a lyophilized pharmaceutical composition is provided comprising the disclosed nanoparticles, where, with the reconstitution of the
134 lyophilized pharmaceutical composition in a concentration of nanoparticles of about 50 mg / ml, in a lower amount or about 100 ml of an aqueous medium, the reconstituted composition suitable for parenteral administration comprises less than 6000, such as less than 3000, microparticles of a size greater than or equal to 10 microns; and / or less than 600, such as less than 300, microparticles of a size greater than or equal to 25 microns.
The amount of microparticles can be determined by means known to those skilled in the art, such as those described in
USP <788>; by means of a light dimming particle count test, such as that described in USP <788>, by the microscopic particle count test, laser diffraction and single particle optical detection.
In one aspect, a pharmaceutical composition suitable for parenteral use with the reconstitution is provided, comprising a plurality of therapeutic particles comprising a copolymer having a hydrophobic polymer segment and a hydrophilic polymer segment; an active ingredient, a sugar; and a cyclodextrin.
For example, the copolymer can be polyethylene glycol block (lactic) acid-copolymer. With reconstitution, 100 ml of aqueous sample may comprise less than 6000 particles having a size greater than or equal to 10 microns; and less than 600 particles having a size greater than or equal to 25 microns.
The step of adding a disaccharide and an ionic halide salt may comprise the addition of about 5 to about 15 percent by weight of sucrose or about 5 to about 20 percent by weight of trehalose (for example, about from 10 to about 20 percent by weight of
135 trehalose), and about 10 to about 500 mM of ionic halide salt The ionic halide salt can be selected from sodium chloride, calcium chloride and zinc chloride, or mixtures thereof. In one embodiment, about 1 to about 25 weight percent of cyclodextrin are also added.
In another embodiment, the step of adding a disaccharide and an ionic halide salt may comprise the addition of 5 to 15 percent by weight of sucrose or 5 to 20 percent by weight of trehalose (for example, 10 to 20 trehalose weight percent), and 10 to 500 mM ionic halide salt In one embodiment, 1 to 25 weight percent cyclodextrin are also added
In another embodiment, the step of adding a disaccharide and a cyclodextrin may comprise the addition of about 5 to about 15 percent by weight of sucrose or about 5 to about 20 percent by weight of trehalose (per example, about 10 to about 20 percent by weight trehalose), and about 1 to about 25 percent by weight of cyclodextrin. In one embodiment, about 10 to about 15 percent by weight of cyclodextrin are added. Cyclodextrin can be selected from a-cyclodextrin, β-cyclodextrin, γ-cyclodextrin, or mixtures thereof.
In another embodiment, the step of adding a disaccharide and a cyclodextrin may comprise the addition of 5 to 15 percent by weight of sucrose or 5 to 20 percent by weight of trehalose (for example, 10 to 20 percent by weight trehalose weight), and 1 to 25 percent by weight of cyclodextrin In one embodiment, 10 to 15 percent by weight of cyclodextrin are added.
136
In another aspect, a method of preventing the substantial aggregation of particles in a pharmaceutical nanoparticle composition is provided, comprising the addition of a sugar and a salt to the lyophilized formulation, in order to avoid aggregation of the nanoparticles with reconstitution. In one embodiment, a cyclodextrin is also added to the lyophilized formulation. In yet another aspect, a method of preventing the substantial aggregation of particles in a pharmaceutical nanoparticle composition is provided, comprising the addition of a sugar and a cyclodextrin to the lyophilized formulation, so as to avoid aggregation of the nanoparticles with the reconstitution.
A contemplated lyophilized composition may have a therapeutic particle concentration greater than about 40 mg / ml. The formulation suitable for parenteral administration may be less than about 600 particles that are larger than 10 microns in a dose of 10 ml. Lyophilization may comprise freezing the composition at a temperature greater than about -40 ° C, or for example, less than about -30 ° C, to form a frozen composition; and drying the frozen composition to form the lyophilized composition. The drying stage can take place at about 0 066 mbar (50 mTorr) at a temperature of about -25 to about -34 ° C, or about -30 to about -34 ° C
A lyophilized composition contemplated may have a therapeutic particle concentration greater than 40 mg / ml. The formulation suitable for parenteral administration may be less than 600 particles that are larger than 10 microns in a dose of 10 ml. Lyophilization may comprise freezing the composition at a temperature greater than 40 ° C, or for example, less than -30 ° C, to form a composition
137 frozen, and drying of the frozen composition to form the lyophilized composition The drying step can take place at 0 066 mbar (50 mTorr) at a temperature of -25 to
-34 ° C, or -30 to -34 ° C.
Treatment methods
In some embodiments, the targeted nanoparticles can be used for the purpose of treatment. As used in the present application, the terms "treat" or "treatment" mean relief, improvement, palliation, delayed onset, inhibition of progress, reduction of severity and / or reduction of one's incidence. or more symptoms or traits of a disease, a disorder, and / or a condition. In some embodiments, targeted nanoparticles can be used for the treatment of solid tumors, for example, cancer and / or cancer cells. In certain embodiments, The targeted nanoparticles or pharmaceutical compositions comprising the nanoparticles can be used for the treatment of any type of cancer where the prostate specific membrane antigen (PSMA) is expressed on the surface of the cancer cells or in the tumor neovasculature in a subject in need of it , which includes prostate neovasculature or solid non-prostate tumors Examples of the indication related to pSMA include, without limitation, prostate cancer, breast cancer, non-small cell lung cancer, colorectal carcinoma and glioblastoma
In some embodiments, the targeted nanoparticles or pharmaceutical compositions comprising the nanoparticles can be used for the preparation of a medicament for relief, improvement, palliation, delay of onset, inhibition of progress, reduction of
138 severity, and / or reduction of the incidence of one or more symptoms or features of a disease, a disorder and / or a condition. In some embodiments, the targeted nanoparticles or pharmaceutical compositions comprising the nanoparticles can be used for the preparation of a medicament for the treatment of any type of cancer where the prosthetic specific membrane antigen (PSMA) is expressed on the surface of the cancer cells, or in the tumor neovasculature in a subject in need, which includes the prostate neovasculature or solid non-prosthetic tumors.
The term "cancer" includes premalignant, as well as malignant, cancers. Types of cancer include, without limitation, blood cancer (eg, chronic myelogenous leukemia, chronic myelomonocytic leukemia, acute acute lymphoblastic leukemia for the Philadelphia chromosome, mantle cell lymphoma), prostate, gastric cancer, colorectal cancer, skin cancer, for example, melanomas or basal cell carcinomas, lung cancer (for example, non-small cell lung cancer), breast cancer, head and neck cancer, bronchial cancer, pancreatic cancer, urinary bladder cancer, brain or central nervous system cancer, peripheral nervous system cancer, esophageal cancer, cancer oral cavity or pharynx, liver cancer (for example, hepatocellular carcinoma), kidney cancer (for example, renal cell carcinoma), testicular cancer, billiard tract cancer, cancer of the small intestine or appendix, gastrointestinal stromal tumor, salivary gland cancer, thyroid gland cancer, adrenal gland cancer, osteosarcoma, chondrosarcoma, hematologic tissue cancer, head or neck cancer, and the like. "Cancer cells" can occur in the form of a tumor (ie, a solid tumor), can occur alone inside
139 of a subject (for example, leukemia cells), or they can be cell lines derived from a type of cancer.
Cancer can be associated with a variety of physical symptoms Cancer symptoms usually depend on the type and location of the tumor For example, lung cancer can cause cough, shortness of breath and chest pain, while colon cancer frequently It causes diarrhea, constipation and presence of blood in the stool. However, in order to give just a few examples, the following symptoms are often associated with many types of cancer, fever, chills, night sweats, cough, dyspnea, weight loss, loss of appetite, anorexia, nausea, vomiting, diarrhea, anemia, jaundice, hepatomegaly, hemoptysis, fatigue, malaise, cognitive dysfunction, depression, hormonal alterations, neutropema, pain, unhealed sores, enlarged lymph nodes, peripheral neuropathy and sexual dysfunction.
In one aspect, a method is provided for the treatment of cancer (for example, leukemia). In some embodiments, the cancer treatment comprises the administration of a therapeutically effective amount of the particles directed of the invention to a subject in need, in amounts and during times as necessary to achieve the desired result. In certain embodiments. , a "therapeutically effective amount" of a directed particle of the Invention is that amount effective to treat, relieve, improve, alleviate, delay onset, inhibit progress, reduce severity and / or reduce the incidence of one or more cancer symptoms or traits
In one aspect, a method is provided for the administration of the compositions of the invention to a subject suffering from cancer (eg, leukemia). In some embodiments, the particles may be administered to a subject in amounts and during times such as be
140 necessary to achieve the desired result (i.e. cancer treatment). In certain embodiments, a "therapeutically effective amount" of a directed particle of the invention is that amount effective to treat, relieve, improve, alleviate, delay onset, inhibit progress, reduce severity and / or reduce the incidence of one or more cancer symptoms or traits
The therapeutic protocols of the invention involve the administration of a therapeutically effective amount of a directed particle of the invention to a healthy individual (i.e., a subject that does not exhibit any symptoms of cancer and / or that has not been diagnosed with cancer). For example, healthy individuals may be "immunized" with a directed particle of the invention, before the development of cancer and / or the onset of cancer symptoms; individuals at risk (for example, patients who have a family history of cancer, patients who carry one or more genetic mutations associated with cancer development; patients who have a genetic polymorphism associated with cancer development; patients infected by an associated virus with the development of cancer, patients with habits and / or lifestyles associated with the development of cancer; etc.) can be treated substantially in a contemporary way with (for example, within 48 hours, within 24 hours, or within 12 hours) the onset of cancer symptoms Naturally, individuals known to have cancer can receive the treatment of the invention at any time
In other embodiments, the disclosed nanoparticles can be used to inhibit the growth of cancer cells, for example, myelogenous leukemia cancer cells. As used in the present application, the term "inhibits the growth of cancer cells" or "inhibition of the growth of cancer cells" refers to any decrease in the
141 rate of proliferation and / or migration of cancer cells, arrest of proliferation and / or migration of cancer cells, or death of cancer cells, such that the growth rate of cancer cells is reduced compared to that observed or predicted growth rate of an untreated control cancer cell The term "inhibits growth" may further refer to a reduction in size or the disappearance of a cancer cell or a tumor, as well as a reduction in its metastatic potential. Preferably, said inhibition at the cellular level can reduce the size, stop the growth, reduce the aggression, or prevent or inhibit the metastasis of a cancer in a patient. Those skilled in the art can determine without difficulty, by any of a variety of indications. suitable, if the growth of cancer cells is inhibited
Inhibition of cancer cell growth can be evidenced, for example, by the arrest of cancer cells in a particular phase of the cell cycle, for example, the arrest in the G2 / M phase of the cell cycle. Inhibition of cancer cell growth. It can also be evidenced by direct or indirect measurement of the size of the tumor or cancer cell In human cancer patients, Such measurements are generally made using well-known imaging methods, such as magnetic resonance imaging, computerized axial tomography and X-rays. The growth of cancer cells can also be determined indirectly, such as by determining the circulating carcinoembryonic antigen levels, prostate specific antigen or other cancer specific antigens that correlate with cancer cell growth Inhibition of
142 Cancer growth also correlates generally with prolonged survival and / or greater health and well-being of the subject
Methods of administration to a patient are also provided in this application of the nanoparticles disclosed in this application which include an active agent, where, with administration to a patient, said nanoparticles substantially reduce the volume of distribution and / or substantially reduce the C<sub>ma</sub>x Udder, compared to agent administration alone (i.e. not as a disclosed nanoparticle)
In some embodiments, the therapeutic nanoparticle is administered with a compound selected from the group consisting of a topoisomerase I inhibitor, an MEK 1/2 inhibitor, an HSP90 inhibitor, procarbazine, dacarbazine, gemcitabine, capecltabine, methotrexate, Taxol, taxotere, mercaptopurlna, tíoguanina, hydroxyurea, cytarabine, cyclophosphamide, ifosfamide, nltrosoureas, cisplatin, carboplatin, mitomycin, dacarbazine, procarbizine, etoposide, temposide, campatecinas, bleomycin, doxorubicin, idarubicin, daunorublclna, dactinomycin, plicamycin, mitoxantrone, L-asparaginase, doxorubicin, epirubicin, 5-fluoruracil, docetaxel, paclitaxel, leucovorin, levamlsin, iromatin, irustum, irustum, nimatin, irustum, nimatin, irustum, nimatin, irustum, n-nitrate, carcinum vinblastine, vincristine, vinorrelbin, oxallplatin, matinlb mesylate, bevacizumab, hexamethylmelamine, topotecan, tyrosine kinase inhibitors, tlrfostines, herblmlcina A, genlstelna, erbstatlna, hldroxlzine, glatiramer acetate, interferon beta-1a, interferon beta-1b, natalizumab and lavendustine A, and a pharmaceutically acceptable carrier
In another aspect, a therapeutic nanoparticle is provided as described in the present application for use as a medicament in a subject.
143
In yet another aspect, a therapeutic nanoparticle is provided as described in the present application for use in the production of an antiproliferative effect in a subject.
In yet another aspect, a therapeutic nanoparticle is provided as described in the present application for use in a subject as an anti-invasive agent in the containment and / or treatment of a solid tumor disease.
In yet another aspect, the use of a therapeutic nanoparticle is provided as described in the present application in the prevention or treatment of cancer in a subject.
In yet another aspect, a therapeutic nanoparticle is provided as described in the present application for use in the prevention or treatment of cancer in a subject.
In yet another aspect, the use of a therapeutic nanoparticle is provided as described in the present application in the preparation of a medicament for the prevention or treatment of cancer in a subject.
In yet another aspect, the use of a therapeutic nanoparticle is provided as described in the present application for the production of an antlproliferative effect in a subject.
In yet another aspect, the use of a therapeutic nanoparticle is provided as described in the present application in the preparation of a medicament for use in the production of an antiprohferative effect in a subject.
In yet another aspect, the use of a therapeutic nanoparticle is provided as described in the present application in the preparation of a medicament for use in a subject as an anti-invasive agent in the containment and / or treatment of a solid tumor disease.
144
In yet another aspect, a method is provided for the production of an antlprollferativ effect in a subject in need of such treatment, which comprises the administration, to said subject, of an effective amount of a therapeutic nanoparticle as described in the present application.
In yet another aspect, a method is provided for the production of an anti-invasive effect by containment and / or treatment of a solid tumor disease in a subject in need of such treatment, which comprises administering, to said subject, a quantity Effective of a therapeutic nanoparticle as described in the present application.
In yet another aspect, a therapeutic nanoparticle is provided as described in the present application for use in the prevention or treatment of a solid tumor disease in a subject.
In yet another aspect, the use of a therapeutic nanoparticle is provided as described in the present application in the preparation of a medicament for use in the prevention or treatment of a solid tumor disease in a subject.
In yet another aspect, a method is provided for the prevention or treatment of a solid tumor disease in a subject in need of such treatment, which comprises the administration, to said subject, of an effective amount of a therapeutic nanoparticle as described in the present application
United States Patent No. 8,206 747, issued June 26, 2012, entitled "Polymeric nanoparticles loaded with drug, and methods for its preparation and use" is incorporated into this application by reference, in its entirety.
FORMS OF REALIZATION
145
Some embodiments of this invention are as follows
1. A therapeutic nanoparticle that comprises.
about 0.05 to about 30 percent by weight of a substantially hydrophobic acid;
about 0.2 to about 25 percent by weight of a therapeutic agent, where pK<sub>to</sub> of the protonated therapeutic agent is at least about 1.0 pKa units greater than pK<sub>to</sub> of the hydrophobic acid, and about 50 to about 99.75 percent by weight of a polymer selected from a poly (lactic acid) diblock copolymer —poh (ethylene) ghcol or a poly (lactic acid-cocyclic diblock copolymer) copolymer glycolic) - poh (etllen) glycol and combinations thereof, where the therapeutic nanoparticle comprises about 10 to about 30 percent by weight poly (ethylene) glycol, where the therapeutic agent is 1- (4 - {[4 (dimethylamino) piperidin-1-yl] carbonyl} phenyl) -3- [4- (4,6-dimorfolin-4-yl-1,3,5- triazin —2 — il) phenyl] urea or a pharmaceutically acceptable salt thereof
two. The therapeutic nanoparticle of embodiment 1, wherein the amount of the therapeutic agent is about 0 to about 20 percent by weight.
3. The therapeutic nanoparticle according to the form of embodiment 1 or 2, which comprises.
1- (4 - {[4- (dimethylamino) pperidin-1-yl] carbon¡l} phenyl) -3- [4- (4,6-dimorpholin-4-I-1,3,5-triazin- 2-ii) phenyl] urea, and PLA-PEG (in a 16: 5 molar ratio) in a weight ratio of about 1 7 of 1- (4-¿[4- (dimethylamino) piperidine -1-yl] carbonyl} phenyl) -3- [425 (4,6-dimorpholin-4-1-1,3,5-triazin-2-yl) phenyl] urea. PLA-PEG.
The therapeutic nanoparticle according to embodiment 1 or 2, comprising:
146
1— (4 - {[4— (dlmethylaminojpiperidln — 1 — il] carbonll} phenyl) —3— [4— (4,6— dimorfolin — 4 — il — 1,3,5 — triazin — 2 — ¡) femi] urea;
and PLA-PEG (in a molar ratio of 16: 5) in a weight ratio of about 1 14 of 1 - (4 - {[4— (dimethylamino) piperldn — 1 —yl] carbonyl} phenyl) - 3— [4— (4,6-dimorfolin-4-yl-1,3,5-triazin-2-yl) phenyl] urea PLA-PEG
The therapeutic nanoparticle according to embodiment 1 or 2, which comprises.
1- (4 - {[4- (dimethylamino) pperidin-1-1] carbon¡l} phenyl) -3- [4- (4,6-dimorfohn-4- ¡I-1,3,5 -triazin-2-yl) phenyl] urea, and PLA-PEG (in a molar ratio of 16: 5) in a weight ratio of about 1: 5 of 1- (4 - {[4- (d¡methylam No) piperidin-1-yl] carbonyl} fenll) -3- [4 (4,6-dimorfolin-4-yl-1,3,5-triazin-2-yl) feml] urea. PLA-PEG.
6. A therapeutic nanoparticle comprising about 0 to about 25 percent by weight of a therapeutic agent;
a substantially hydrophobic acid, where the molar ratio of substantially hydrophobic acid to the therapeutic agent ranges from about 0 25 1 to about 2Ί and where the pKa of the protonated therapeutic agent is at least about 1.0 pKa units greater than pK<sub>to</sub> of the hydrophobic acid, and about 50 to about 99.75 percent by weight of a polymer selected from poly (lactic acid) diblock copolymer - poh (ethylene) glycol or a poly (lactic acid-co-acid diblock copolymer) glycohco) poll (ethylene) glycol and combinations thereof, where the therapeutic nanoparticle comprises about 10 to about 30 percent by weight of poh (ethylene) ghcol, where the therapeutic agent is 1- (4 - {[4 (dimethylamino) piperine-1-yl] carbonl} feml) -3- [4- (4,6-dimorfohn-4-yl-1 , 3,5— triazin-2-yl) phenyl] urea or a pharmaceutically acceptable salt thereof
147
7. The therapeutic nanoparticle of embodiment 6, wherein the amount of the therapeutic agent is about 0.2 to about 20 percent by weight.
8. A therapeutic nanoparticle comprising:
a substantially hydrophobic acid;
a therapeutic agent, where pK<sub>to</sub> of the protonated therapeutic agent is at least about 10 pKa units greater than pK<sub>to</sub> of the hydrophobic acid, and a polymer selected from a 10-polyl (lactic) acid diblock copolymer - poly (ethylene) glycol or a diblock copolymer of poly (lactic acid - co-glycol acid) - poh (ethylene) ghcol and their combinations, where the therapeutic agent is 1- (4 - {[4- (dimethylamino) piperidin-1-yl] carbonyl} phenyl) -3- [4- (4,6dimorfohn-4-yl-1,3,5 -trlazin-2-yl) phenol] urea or a pharmaceutically acceptable salt thereof.
9. A therapeutic nanoparticle comprising a therapeutic agent;
a substantially hydrophobic acid, where the molar ratio of substantially hydrophobic acid to the therapeutic agent ranges from about 0 25 1 to about 2 1 and where the pKa of the protonated therapeutic agent is at least about 1.0 pKa units greater than pK<sub>to</sub> of the hydrophobic acid, and a polymer selected from poly (lactic acid) diblock copolymer - poly (ethylene) glycol or a copolymer of poly (lactic acid - cog glycol) - poll (etllen) glycol and combinations thereof, and, where the therapeutic agent is 1 - (4 - {[4— (dimethylamino) piperine-1-yl] carbonyl} phenyl) -3- [4- (4,6-dimorfolln-4-yl-1, 3,5-trlazin-2-yl) phenyl] urea or a pharmaceutically acceptable salt thereof.
The therapeutic nanoparticle of embodiment 6 or 9,
148 where the molar ratio of the substantially hydrophobic acid to the therapeutic agent is about 0.5: 1 to about 1 5 1
eleven. The therapeutic nanoparticle of embodiment 6 or 9, wherein the molar ratio of the substantially hydrophobic acid to the therapeutic agent is about 0.25'1 to about 1.1.
The therapeutic nanoparticle of embodiment 6 or 9, wherein the molar ratio of the substantially hydrophobic acid to the therapeutic agent is about 0.75: 1 to about 1.25: 1.
The therapeutic nanoparticle of any of the forms of embodiment 1-12, where the pK<sub>to</sub> of the protonated therapeutic agent is at least about 2.0 pKa units greater than pK<sub>to</sub> of hldrophobic acid
The therapeutic nanoparticle of any of embodiments 1-12, where the pK<sub>to</sub> of the protonated therapeutic agent is at least about 4 0 pKa units greater than pK<sub>to</sub> of hldrophobic acid
fifteen A therapeutic nanoparticle comprising:
a pair of hydrophobic ions comprising a hydrophobic acid and therapeutic agent; where the difference between the pKa of the protonated therapeutic agent and the hydrophobic acid is at least about 1.0 pKa units or greater, and about 50 to about 99.75 percent by weight of a 20 diblock copolymer of poly (lactic acid) —Poh (ethylene) ghcol, where the copolymer of poly (lactic acid) —poh (ethylene) glycol has a number average molecular weight of about 15 kDa to about 20 kDa of poly (lactic acid) and a number average molecular weight of about 4 kDa about 6 kDa of poh (ethylene) glycol, where the therapeutic agent is
1— (4 - {[4— (dimethylamino) piperidin — 1 — yl] carbonyl} phenyl) —3— [4— (4,6 — d¡morfohn — 4 — il—
1,3,5-triazin-2-yl) phenyl] urea or a pharmaceutically acceptable salt thereof
16. The therapeutic nanoparticle of embodiment 15, where
149 The difference between the pKa of the protonated therapeutic agent and the hydrophobic acid is at least about 2.0 pKa units.
The therapeutic nanoparticle of embodiment 15, where the difference between the pKa of the protonated therapeutic agent and the hydrophobic acid is at least about 4 0 pKa units.
The therapeutic nanoparticle of any of embodiments 1-5, 8 or 13-17, which comprises about 0.05 to about 20 percent by weight of the hydrophobic acid.
19. The therapeutic nanoparticle of any of the forms of embodiment 1-18, wherein the substantially hydrophobic acid has a logP ranging from about 2 to about 7.
twenty. The therapeutic nanoparticle of any of embodiments 1-18, wherein the substantially hydrophobic acid has a logP ranging from about 4 to about 8.
twenty-one The therapeutic nanoparticle of any of embodiments 1-20, wherein the substantially hydrophobic acid has a pK<sub>to</sub> in water from around -1 0 to around 5.0.
22 The therapeutic nanoparticle of any of embodiments 1-20, wherein the substantially hydrophobic acid has a pK<sub>to</sub> in water from around 2.0 to around 5.0
The therapeutic nanoparticle of any of embodiments 1-22, wherein the substantially hydrophobic acid and the therapeutic agent form a pair of hydrophobic ions in the therapeutic nanoparticle
The therapeutic nanoparticle of any of embodiments 1-23, where the hydrophobic acid is a fatty acid.
25. The therapeutic nanoparticle of embodiment 24, wherein the fatty acid is a saturated fatty acid selected from the group consisting
150 in: caproic acid, enanthic acid, caprylic acid, pelargromic acid, capric acid, undecanoic acid, lauric acid, tridecyl acid, myristic acid, pentadecyclic acid, palmitic acid, margaric acid, stearic acid, nonadecyl acid, arachidic acid, heneicosyl acid, behemic acid , tricosyl acid, lignoceric acid, pentacosyl acid, cerotic acid, heptacosyl acid, montanic acid, nonacosycic acid, melisic acid, henatriacontyl acid, lacceroic acid, Psylic acid, gedic acid, ceroplastic acid, hexatriacontyl acid, and combinations thereof
26. The therapeutic nanoparticle of embodiment 24, wherein the fatty acid is an omega-3 fatty acid selected from the group consisting of: hexadecatrlenoic acid, alpha-lnollenic acid, stearidomic acid, eicosatrienoic acid, elcosatetraenoic acid, eicosapentaenoic acid, heneicosapentaenoic acid , docosapentaenolic acid, docosahexaenoic acid, tetracosapentaenolco acid, tetracosahexaenoic acid, and combinations thereof
27 The therapeutic nanoparticle of embodiment 24, wherein the fatty acid is an omega-6 fatty acid selected from the group consisting of: linolel acid, gamma-linolemic acid, elcosadienoic acid, dihomo-gamma-linolenic acid, araquldonic acid, acid docosadienoic acid, adrenic acid, docosapentaenoic acid, tetracosatetraenoic acid, tetracosapentaenolic acid, and combinations thereof.
The therapeutic nanoparticle of embodiment 24, wherein the fatty acid is an omega-9 fatty acid selected from the group consisting of: oleic acid, elcosenoic acid, Mead acid, erucic acid, nerve acid, and combinations thereof.
29 The therapeutic nanoparticle of embodiment 28, where the fatty acid is oleic acid
30 The therapeutic nanoparticle of embodiment 29, where
151 the weight ratio of 1— (4 - {[4— (dimethylamino) plperidin-1-yl] carbonyl} phenyl) —3— [4- (4,6-dimorfohn-4-yl-1,3,5- triazin-2-yl) phenol] urea an oleic acid is about 6 1.
The therapeutic nanoparticle of embodiment 24, wherein the fatty acid is a pohinsaturated fatty acid selected from the group consisting of. rumenic acid, α-caléndic acid, β-calendic acid, jaccharic acid, α-eleostearic acid, β-eleostearic acid, catálpico acid, punic acid, rumelemolic acid, a-parinaric acid, β-parinánco acid, bosseo pentaenoic acid, acid pinolémco, podocárpico acid, and their combinations.
The therapeutic nanoparticle of any of embodiments 1-24, where the hydrophobic acid is a bile acid
33. The therapeutic nanoparticle of embodiment 32, wherein the bile acid is selected from the group consisting of chenodeoxycholic acid, ursodeoxycholic acid, deoxychloic acid, hicolic acid, beta-murlcolic acid, colic acid, htocholic acid, a billiard acid conjugated with amino acid , and their combinations.
The therapeutic nanoparticle of embodiment 33, where the bile acid is colic acid.
35 The therapeutic nanoparticle of embodiment 33, wherein the amino acid conjugated bile acid is a bile acid conjugated with glycine or a bile acid conjugated with taurine.
36. The therapeutic nanoparticle of any of embodiments 1-23, wherein the hydrophobic acid is selected from the group consisting of dioctyl sulfosuccinic acid, 1-hydroxy-2-naphthoic acid, dodecylsulfuric acid, naphthalene-1,5-disulfomic acid, Naphthalene-2-sulphomic acid, pamoic acid, undecanoic acid, and combinations thereof
152
The therapeutic nanoparticle of embodiment 36, where the hldrophobic acid is pamoic acid.
38. The therapeutic nanoparticle of embodiment 37, wherein the weight ratio of 1- (4 - {[4- (dimethylamine) pperidin-1-yl] carbonyl} phenyl) -35 [4- (4, 6-dimorfohn-4-yl-1,3,5-triazm-2-yl) feml] urea to pamoic acid is about 1.8: 1.
39. The therapeutic nanoparticle of any of embodiments 1-38, which comprises about 1 to about 20 percent by weight of the therapeutic agent.
40 The therapeutic nanoparticle of any of embodiments 1-38, which comprises about 2 to about 20 percent by weight of the therapeutic agent
The therapeutic nanoparticle of any of embodiments 1-38, comprising about 4 to about 20 weight percent of the therapeutic agent.
The therapeutic nanoparticle of any of embodiments 1-38, comprising about 5 to about 20 weight percent of the therapeutic agent
43 The therapeutic nanoparticle of any of the forms of embodiment 1-38, wherein the hldrophobic acid has a molecular weight between about 200 Da and about 800 Da.
The therapeutic nanoparticle of any of embodiments 1-43, wherein the therapeutic nanoparticle substantially retains the therapeutic agent for at least 1 minute when placed in a phosphate regulator solution at 37 ° C
Four. Five. The therapeutic nanoparticle of any of embodiments 1-43, where the therapeutic nanoparticle substantially releases from
153 Immediately less than about 30% of the therapeutic agent when placed in a phosphate regulator solution at 37 ° C.
The therapeutic nanoparticle of any of embodiments 1-43, wherein the therapeutic nanoparticle releases about 10 to about 45% of the therapeutic agent for about 1 hour when placed in a phosphate regulator solution at 37 ° C.
47 The therapeutic nanoparticle of any of embodiments 1-43, where the therapeutic nanoparticle releases about 0.01 to about 15% of the therapeutic agent for about 4 hours when placed in a phosphate regulator solution at 37 ° C .
48. The therapeutic nanoparticle of any of embodiments 1-43, where the therapeutic nanoparticle releases about 0.01 to about 15% of the therapeutic agent for about 10 hours when placed in a phosphate regulator solution at 37 ° C .
49 The therapeutic nanoparticle of any of embodiments 1-43, where the therapeutic nanoparticle releases about 0.01 to about 25% of the therapeutic agent for about 20 hours when placed in a phosphate regulator solution at 37 ° C.
fifty. The therapeutic nanoparticle of any of embodiments 1-43, where the therapeutic nanoparticle releases about 1 to about 40% of the therapeutic agent for about 40 hours when placed in a phosphate regulator solution at 37 ° C
The therapeutic nanoparticle of any of embodiments 1-43, wherein the therapeutic nanoparticle has a release profile that is substantially the same as a release profile for a control nanoparticle that is substantially equal to the therapeutic nanoparticle except that it does not contain a fatty acid or bile acid
154
The therapeutic nanoparticle of any of embodiments 1-51, wherein the cop (lactic) -poh (ethylene) glycol copolymer has a number average molecular weight fraction of poh (lactic) acid of about 0.6 to about of 0 95.
53 The therapeutic nanoparticle of any of embodiments 1-51, wherein the copolymer of poh (lactic) acid - poly (ethylene) ghcol has an average molecular weight fraction in number of poh (lactic acid) of about 0.6 to about of 0.8.
54 The therapeutic nanoparticle of any of embodiments 1-51, wherein the copolymer of poly (lactic) -poly (ethylene) ghcol has a fraction of average molecular weight in number of poh (lactic acid) of about 0.75 to about from 0.85
55. The therapeutic nanoparticle of any of embodiments 1-51, wherein the poh (lactic) -poli (ethylene) ghcol acid copolymer has a number average molecular weight fraction of poly (lactic acid) of about 0 to 7 around 0 9.
56. The therapeutic nanoparticle of any of embodiments 1-55, wherein the therapeutic nanoparticle comprises about 10 to about 25 percent by weight of poh (ethylene) ghcol.
57. The therapeutic nanoparticle of any of embodiments 1-55, wherein the therapeutic nanoparticle comprises about 10 to about 20 percent by weight of polyethylene glycol.
58. The therapeutic nanoparticle of any of embodiments 1-55, wherein the therapeutic nanoparticle comprises about
fifteen at about 25 percent by weight of poh (ethylene) glycol.
The therapeutic nanoparticle of any of embodiments 1-55, wherein the therapeutic nanoparticle comprises about
155 to about 30 percent by weight of poly (ethylene) glycol
The therapeutic nanoparticle of any of embodiments 1-59, wherein the copolymer of poh (lactic) -poly (ethylene) ghcol acid has a number average molecular weight of about 15 kDa to about 20 kDa of poly (acid lactic acid) and a number average molecular weight of about 4 kDa to about 6 kDa of poh (ethylene) ghcol
61. The therapeutic nanoparticle of any of embodiments 1-60, further comprising about 0 2 to about 30 percent by weight copolymer of poly (lactic acid) -poh (ethylene) glycol functionalized with a targeting ligand
The therapeutic nanoparticle of any of embodiments 1-60, further comprising about 0.2 to about 30 percent by weight copolymer of poly (lactic acid) co-poly (gholic) -poly (ethylene) acid ) ghcol functionalized with an addressing ligand
63 The therapeutic nanoparticle of embodiment 61 or 62, where the targeting ligand is covalently bound to the poly (ethylene) glycol.
The therapeutic nanoparticle of any of embodiments 1-63, where the hydrophobic acid is a polyelectrolyte
65 The therapeutic nanoparticle of embodiment 64, wherein the pohelectrolyte is selected from the group consisting of a poh (styrene sulfonic acid), polyacrylic polyacid and polymethacrylic acid
66. The therapeutic nanoparticle of any of embodiments 1-65, wherein the substantially hydrophobic acid is a mixture of two or more substantially hydrophobic acids.
The therapeutic nanoparticle of embodiment 66, which comprises a mixture of two substantially hydrophobic acids
156
The therapeutic nanoparticle of embodiment 67, wherein the two substantially hydrophobic acids are oleic acid and colic acid
The therapeutic nanoparticle of embodiment 66, comprising a mixture of three substantially hydrophobic acids
70 The therapeutic nanoparticle of embodiment 66, which comprises a mixture of four substantially hydrophobic acids.
The therapeutic nanoparticle of embodiment 66, comprising a mixture of five substantially hydrophobic acids
72. A therapeutic nanoparticle prepared by a process comprising the steps of the emulsion of a first organic phase comprising a first polymer, a therapeutic agent and a substantially hydrophobic acid, so as to form an emulsion phase;
shutting down the emulsion phase so as to form an off phase, and filtering off the phase in order to recover the therapeutic nanoparticles, where the therapeutic agent is 1- (4 - {[4- (dimethylamino) piperidin1- il] carbonyl} feniI) —3— [4— (4,6-dimorfoiin-4 — 1—1,3,5 — triazin-2-yl) phenyl] urea or a pharmaceutically acceptable salt thereof
73 The therapeutic nanoparticle of embodiment 72, where the hldrophobic acid is a fatty acid.
The therapeutic nanoparticle of embodiment 73, wherein the fatty acid is a saturated fatty acid selected from the group consisting of caproic acid, enanthic acid, caprylic acid, pelargonic acid, capric acid, undecanoic acid, lauric acid, tridecyl acid, acid myristic, pentadecyl acid, palmitic acid, margaric acid, stearic acid, nonadecyl acid, arachidic acid, heneicosyl acid, behemic acid. acid
157 tricosyl, lignochloric acid, pentacosyl acid, cerotic acid, heptacosyl acid, montamic acid, nonacosyl acid, melisic acid, henatriacontyl acid, lacceroic acid, psylic acid, gedic acid, ceroplastic acid, hexatriacontyl acid, and combinations thereof
75. The therapeutic nanoparticle of embodiment 73, wherein the fatty acid is an omega-3 fatty acid selected from the group consisting of. hexadecatrienoic acid, alpha-linolenic acid, stearidomic acid, eicosatrienoic acid, eicosatetraenoic acid, eicosapentaenoic acid, heneicosapentaenoic acid, docosapentaenolco, docosahexaenoic acid, tetracosapentaenoic acid, tetra-hexaenoic acid 76 The fatty acid is an omega-6 fatty acid selected from the group consisting of linoleic acid, gamma-linolemic acid, eicosadienoic acid, dihomo-gamma-hnolénic acid, arachidomic acid, docosadienoic acid, adrenic acid, docosapentaenoic acid, tetracosatetraenoic acid, tetracosapentaenoic acid, and combinations thereof.
77. The therapeutic nanoparticle of embodiment 73, wherein the fatty acid is an omega-9 fatty acid selected from the group consisting of · oleic acid, eicosenoic acid, Mead acid, erucic acid, nerve acid, and combinations thereof
78. The therapeutic nanoparticle of embodiment 77, where the fatty acid is oleic acid
The therapeutic nanoparticle of embodiment 73, wherein the fatty acid is a pohmsaturated fatty acid selected from the group consisting of rumenic acid, α-calendic acid, β-calendic acid, jaccharic acid, α-eleostearic acid, β-eleostearic acid , catálpico acid, punic acid, rumelemic acid, α-parinic acid, β-pannanco acid, acid
158 pentaenoic bosseo, pinolénic acid, podocárpico acid, and their combinations
80. The therapeutic nanoparticle of any of the embodiments 72, wherein the hydrophobic acid is a bile acid.
81 The therapeutic nanoparticle of embodiment 80, where the bile acid is selected from the group consisting of chenodeoxycholic acid, ursodeoxycholic acid, deoxycholic acid, hicóhco acid, beta-muricholic acid, colic acid, lltocolic acid, a bile acid conjugated with amino acid , and their combinations.
82 The therapeutic nanoparticle of embodiment 81, where the bile acid is colic acid.
The therapeutic nanoparticle of embodiment 81, wherein the amino acid conjugated bile acid is a bile acid conjugated with glycine or a bile acid conjugated with taurine.
84 The therapeutic nanoparticle of any of embodiments 72, wherein the hydrophobic acid is selected from the group consisting of dioctyl sulfosuccinic acid, 1-hydroxy-2-naphthoic acid, dodecylsulfuric acid, naphthalene-1,5-disulfonic acid, naphthalene acid -2-sulphomic, pamoic acid, undecanoic acid and combinations thereof
85 The therapeutic nanoparticle of embodiment 84, wherein the hydrophobic acid is pamoic acid.
The therapeutic nanoparticle of any of embodiments 72-85, where the hydrophobic acid has a molecular weight between about 200 Da and about 800 Da
87. The therapeutic nanoparticle of any of embodiments 72-86, wherein the therapeutic nanoparticle substantially retains the therapeutic agent for at least 1 minute when placed in a
159 phosphate regulator solution at 37 ° C
The therapeutic nanoparticle of any of embodiments 72-86, wherein the therapeutic nanoparticle substantially immediately releases less than about 30% of the therapeutic agent when placed in a phosphate regulator solution at 37 ° C
89. The therapeutic nanoparticle of any of embodiments 72-86, where the therapeutic nanoparticle releases about 10 to about 45% of the therapeutic agent for about 1 hour when placed in a phosphate regulator solution at 37 ° C
90 The therapeutic nanoparticle of any of embodiments 72-86, where the therapeutic nanoparticle releases about 0.01 to about 15% of the therapeutic agent for about 4 hours when placed in a phosphate regulator solution at 37 ° C
The therapeutic nanoparticle of any of embodiments 72-86, where the therapeutic nanoparticle releases about 0.01 to about 15% of the therapeutic agent for about 10 hours when placed in a phosphate regulator solution at 37 ° C .
92. The therapeutic nanoparticle of any of embodiments 72-86, where the therapeutic nanoparticle releases about 0.01 to about 25% of the therapeutic agent for about 20 hours when placed in a phosphate regulator solution at 37 ° C .
The therapeutic nanoparticle of any of embodiments 72-86, where the therapeutic nanoparticle releases about 1 to about 40% of the therapeutic agent for about 40 hours when placed in a phosphate regulator solution at 37 ° C.
The therapeutic nanoparticle of any of embodiments 72-86, where the therapeutic nanoparticle has a profile of
160 release that is substantially the same as a release profile for a control nanoparticle that is substantially equal to the therapeutic nanoparticle except that it does not contain a fatty acid or bile acid
95. The therapeutic nanoparticle of any of the forms of embodiment 72-94, wherein the first polymer is a copolymer of poh (lactic acid) -poly (etlen) ghcol acid.
The therapeutic nanoparticle of any of the embodiments 72-94, wherein the first polymer is copolymer of poh (lactic) acid co-poly (glycolic) -poll (ethylene) glycol acid.
97. The therapeutic nanoparticle of any of embodiments 72-96, wherein the substantially hydrophobic acid is a mixture of two or more substantially hydrophobic acids.
The therapeutic nanoparticle of embodiment 97, comprising a mixture of two substantially hydrophobic acids
99 The therapeutic nanoparticle of embodiment 97, comprising a mixture of three substantially hydrophobic acids
100 The therapeutic nanoparticle of embodiment 97, comprising a mixture of four substantially hydrophobic acids
101. The therapeutic nanoparticle of embodiment 97, comprising a mixture of five substantially hydrophobic acids
102 The therapeutic nanoparticle of any of embodiments 1, 5-95, or 97-101, where the polymer is PLA-PEG and the molar ratio of PLA-PEG is 5: 1.
103 A therapeutic nanoparticle prepared by the process comprising the steps of combining a first organic phase with a first aqueous solution to form a second phase;
161 the emulsion of the second phase in order to form an emulsion phase, wherein the emulsion phase comprises a first polymer, therapeutic agent, and a substantially hydrophobic acid, the emulsion phase being quenched so as to form a muted phase; and filtration of the quenched phase in order to recover the therapeutic nanoparticles, where the therapeutic agent is 1- (4 - {[4- (dimethylamino) piperidin1-]l] carbon¡l} fen¡I) -3— [4 - (4,6-dimorfolin-4-yl-1,3,5-triazin-2-yl) phenyl] urea, the first organic phase comprises the therapeutic agent and pamoic acid in a weight ratio of therapeutic agent to pamoic acid of about 11 1, and PLA-PEG (in a 16: 5 molar ratio) in a weight ratio of therapeutic agent to PLA-PEG of about 1: 3, in an organic solvent comprising benzll alcohol and ethyl acetate in a weight ratio of benzyl alcohol to ethyl acetate of about 1.25, and the first aqueous solution comprises a chicken oxyethylene (100) stearyl ether dissolved in benzyl alcohol in a weight ratio of 0 005: 1, and the combination of the first organic phase and the first aqueous phase in a weight ratio of about 1-5 to form a second phase; the emulsion of the second phase formed therein and the quenching of the emulsion phase with citric acid, 0.1 M, in aqueous solution at pH 4-5, and the concentration of the resulting product
104. A therapeutic nanoparticle of 1— (4 - {[4 (dimethylamino) piperidin-1-yl] carbonyl} phenyl) —3— [4— (4,6-dimorfolin-4 — 1—1,3,5— triazin -2-il) feml] urea or its pharmaceutically acceptable salt
105 A therapeutic nanoparticle comprising a therapeutic agent or a pharmaceutically acceptable salt thereof and a polymer selected from a poly (lactic) -poh (ethylene) ghcol diblock copolymer or a poly (lactic acid-co-glycolic acid diblock copolymer) copolymer. ) 162 poly (ethylene) glycol and combinations thereof, where the therapeutic agent is 1— (4 - {[4— (dimethylamino) piperidin-1-yl] carbonyl} phenyl) —3— [4— (4,6-dimorfohn-4-yl-1,3,5triazin- 2-yl) feml] urea or a pharmaceutically acceptable salt thereof
106. The therapeutic nanoparticle of any of embodiments 1-71, 104, or 105, where an addressing ligand, which is PLA-PEG-GL, is additionally presented, where GL has the following structure:
NH
CQ<sub>?</sub>H
OR
ΗΟ<sub>?</sub>0-^<sub>Ν</sub>Α<sub>Ν</sub>Λθ0<sub>2</sub>Η Η η Η H
107 The therapeutic nanoparticle according to any of embodiments 1-71 or 104-106, which further comprises a solubilizer.
108. The therapeutic nanoparticle according to embodiment 107, where the solubilizer is polysorbate 80
109. The therapeutic nanoparticle of embodiment 107, wherein the solubilizer is pohoxyethylene (100) stearyl ether
110 The therapeutic nanoparticle of any of embodiments 1-109, wherein the therapeutic agent is 1- (4 - {[4 (dimethylamino) plperidin-1-yl] carbonyl} phenyl) —3— [4— (4.6 —Dimorfolln — 4 —I — 1,3,5— triazin — 2 — il) phenyl] urea
111 A pharmaceutical composition comprising a therapeutic nanoparticle of any of embodiments 1-110 and a pharmaceutically acceptable excipient
112 The pharmaceutical composition of embodiment 111 comprising a plurality of therapeutic nanoparticles.
113 The pharmaceutical composition of embodiment 111 or
163
112, which also comprises a saccharide
114 The pharmaceutical composition of any of embodiments 111-113, which further comprises a cyclodextrin
115 The pharmaceutical composition of embodiments 113 or
114, where the saccharide is a disaccharide selected from the group consisting of sucrose, trehalose, and one of its mixtures
116 A method of treating cancer in a subject in need thereof, comprising the administration, to the subject, of a therapeutically effective amount of a therapeutic nanoparticle of any of embodiments 1-110 or a pharmaceutical composition of any of the forms of embodiment 111-115.
117 The method of embodiment 116, wherein the cancer is chronic myelogenous leukemia.
118 The method of embodiment 116, wherein the cancer is gastrointestinal stromal tumor.
119 The method of embodiment 116, wherein the cancer is selected from the group consisting of chronic myelomonocytic leukemia, hypereosinophilic syndrome, renal cell carcinoma, hepatocellular carcinoma, acute acute lymphoblastic leukemia for the Philadelphia chromosome, non-cell lung cancer small, pancreatic cancer, breast cancer, a solid tumor, head and neck cancer and mantle cell lymphoma.
120. The method of embodiment 119, where the cancer is breast cancer.
121. A process for the preparation of a therapeutic nanoparticle, which comprises the steps of combining a first organic phase with a first solution
164 aqueous to form a second phase, the emulsion of the second phase in order to form an emulsion phase, wherein the emulsion phase comprises a first polymer, therapeutic agent and a substantially hydrophobic acid;
the shutdown of the emulsion phase so as to form an off phase; and filtration of the quenched phase in order to recover the therapeutic nanoparticles, where the therapeutic agent is 1- (4 - {[4- (d¡met¡lam¡no) piperidin1 —yl] carbonyl} phenyl) —3— [ 4— (4,6-dimorfolin-4-yl-1,3,5-triazin-2-yl) phenyl] urea or a pharmaceutically acceptable salt thereof
122. The process of embodiment 121, which further comprises the combination of the therapeutic agent and substantially hydrophobic acid in the second phase before the emulsion of the second phase
123 The process of embodiment 122, wherein the therapeutic agent and substantially hydrophobic acid form a pair of hydrophobic ions before the emulsion of the second phase.
124 The process of embodiment 122, wherein the therapeutic agent and substantially hydrophobic acid form a pair of hydrophobic ions before or during the emulsion of the second phase.
125 The process of embodiment 121, which further comprises the combination of the therapeutic agent and the substantially hydrophobic acid in the second phase in substantially concurrent manner with the emulsion of the second phase.
126. The process of embodiment 125, wherein the first organic phase comprises the therapeutic agent, and the first aqueous solution comprises the substantially hydrophobic acid
127 The process of any of the embodiments 121-126,
165 where the therapeutic agent, when protonated, has a first pK<sub>to</sub>, the substantially hydrophobic acid has a second pK<sub>to</sub>, and the emulsion phase is quenched with an aqueous solution having a pH equal to one unit pKa between the first pK<sub>to</sub> and the second pK<sub>to</sub>.
128 The process of embodiment 127, where the off phase has a pH equal to one unit pKa between the first pK<sub>to</sub> and the second pK<sub>to</sub>
129 The process of any of embodiments 121-128, where the therapeutic agent, when protonated, has a first pK<sub>to</sub>, the substantially hydrophobic acid has a second pK<sub>to</sub>, and the first aqueous solution has a pH equal to one unit pKa between the first pK<sub>to</sub> and the second pK<sub>to</sub>.
130. The process of any of embodiments 127-129, where the pH is equal to a unit pKa that is approximately equidistant between the first pK<sub>to</sub> and the second pK<sub>to</sub>
131 The process of any of embodiments 121-130, wherein the therapeutic agent is 1- (4 - {[4- (dimethylamino) piperidin-1yl] carbonyl} feml) —3— [4— (4,6-dimorfolin —4 — il — 1,3,5 — triazin — 2 — il) phenyl] urea
EXAMPLES
Having described the invention in general terms, it will be better understood by reference to the following examples, which are included merely for purposes of illustration of certain aspects and embodiments, and which are not intended to limit the invention in any way.
EXAMPLE 1 - PREPARATION OF FORMULATION WITH AGENT
THERAPEUTIC
166 (a) Preparation of organic phase loading · Benzyl alcohol (8932.5 mg) was dissolved in 67.5 mg of RODI water (desomominated by reverse osmosis) with mixing The therapeutic agent, 1- (4 - {[4- (dimethylamino) piperidine) 1il] carbonll} fenll) —3— [4— (4,6 — d imorfol in — 4 — il— 1,3,5-triazin-2-yl) phenyl] urea, (150 mg), was added to the solution, and then this was sonicated until drug dissolution PLA-PEG-GL (19 2 mg) and PLA-PEG were added at a ratio of 16 mol / 5 mol (830.8 mg) and was vortexed until dissolution (b) Preparation of aqueous phase loading Sodium colalate (2.75 g) was dissolved in RODI water (955 5 g) in a stir plate. Benzyl alcohol (40 g) was added to the sodium / water coolant solution, and the mixture was stirred on a stir plate until dissolution (c) Emulsion formation: The weight ratio of the aqueous phase to the organic phase was 5Ί The organic phase, which weighed 10 g, was poured into 50 g of the aqueous phase which was cooled in a water bath, and the mixture was homogemized using a manual homogenizer for 15 seconds. The coarse emulsion was fed through a high pressure homogemator with the pressure set at 722.9 bar (10485 psi) in the 1 pass caliber in order to form a nanoemulsion (fine emulsion) (d) Nanoparticle formation: the nanoemulsion was poured into 600 g of cold RODI water (less than 2 ° C) while stirring on a stir plate to form an off phase (the weight ratio of emulsion shutdown was 10.1). To the off phase, 64.3 grams of a solution of polysorbate 80 (350 grams dissolved in 650 g of RODI water) were added with mixing.
(e) Concentration of nanoparticles through tangential flow filtration (TFF): The quenched phase was concentrated using TFF with 300 kDa Pall cassette (2 membranes) to form a nanoparticle concentrate of
167 approximately 200 ml The nanoparticle concentrate was diafiltered with approximately 20 dlavolumens of cold RODI water at less than 2 ° C. The volume of the diafiltered nanoparticle concentrate was reduced to a minimum volume.
Therefore, this formulation contained 1— (4 - {[4— (dimethylamine) piperidin— —iIjcarboniIJfeniI) —3— [4— (4,6-dimorfolin-4-yl-1,3,5-triazin —2 — il) phenyl] urea, and the polymers PLA-PEG (in a molar ratio of 16 5) and PLA-PEG-GL in a weight ratio of PLA-PEG to PLA-PEG-GL of about 43 1 and a weight ratio of the therapeutic agent, 1- (4 - {[4- (dimethylamino) piperidin-110 yl] carbonyl} phenyl) -3- [4- (4,6-dlmorfolin-4- yl-1 , 3,5-trlazin-2-yl) feml] urea, to polymers, from 15 85. There was no contralón or hldrófrobo acid in this formulation. The particle size of a nanoparticle thus formed as described in the present application above was about 116 nm
EXAMPLE 2 - PREPARATION OF FORMULATION B WITH AGENT
THERAPEUTIC (a) Preparation of organic phase loading: Oleic acid (900 mg), trifluoroacetic acid (TFA) (273 mg) were dissolved in benzyl alcohol (8827 mg) The therapeutic agent, 1— (4 - {[4— ( dimethylamino) piperidin — 1— iljcarbonyljphenyl) —3— [4— (4,6 — dimorfohn — 4 — I — 1,3,5 — trlazin — 2 — yl) phenyl] urea (120 mg), mixed with the oleic acid / TFA / benzyl alcohol solution, and the mixture was heated to 80 ° C for 10 minutes in order to dissolve the therapeutic agent there. Once dissolved 1— (4 - {[4— (dimethylamino) piperidin — 1— ll] carbonyl} phenyl) —3— [4— (4,6 — dimorfohn — 4 — il — 1,3,5 — triazin —2 — yl) phenyl] urea, the solution was allowed to cool to room temperature. This solution was completely mixed with a polymer solution of PLA-PEG in a ratio of 16 moles / 5 moles (860 mg), PLA-PEG-GL (18 9 mg) and ethyl acetate (4549 mg) to form a solution .
168 (b) Preparation of aqueous phase loading. Sodium colalate (4.5 g) was dissolved in RODI water (955 5 g) on a stir plate. Benzyl alcohol (40 g) was added to the sodium / water coolant solution, and the mixture was stirred on a stir plate. Until dissolution.
(c) Emulsion formation. The weight ratio of aqueous phase to organic phase was 5.1. The organic phase was poured into 33 4 g of the aqueous phase which was cooled in a water ice bath, and the mixture was homogemized using a manual homogenizer for 15 seconds. The thick emulsion was fed through a high pressure homogenizer with the pressure set to
722 9 bar (10485 psi) in the caliber for 1 pass, to form a nanoemulsion (fine emulsion) (d) Formation of nanoparticles · The nanoemulsion was poured into 401 2 g of cold RODI water (less than 2 ° C) while stirring on a stir plate to form an off phase To the off phase were added 51 4 grams of a solution of polysorbate 80 (350 g dissolved in 650 g RODI water) with mixing.
(e) Concentration of nanoparticles through tangential flow filtration (TFF). The quenched phase was concentrated using TFF with 300 kDa Pall cassette (2 membranes) to form a nanoparticle concentrate of approximately 200 ml. The nanoparticle concentrate was diafiltered with approximately 20 diavolumens of cold RODI water at less than 2 ° C. The volume of the diafiltered nanoparticle concentrate was reduced to a minimum volume
Consequently, this formulation contained 1_ (4 {[4_ (dimethylamino) piperidin-1-yl] carbonyl) phenyl) -3- [4- (4,6-dimorfolin-4-yl-1,3,5— triazin-2-yl) phenyl] urea, and the polymers PLA-PEG (in a molar ratio of 16 5) and PLA-PEG-GL in a weight ratio of PLA-PEG to PLA-PEG-GL
169 of about 46.1 and a weight ratio of the therapeutic agent, 1— (4 - {[4— (dimethylamino) piperidin-1-yl] carbonyl} phenyl) -3- [4- (4,6-dimortolin- 4-yl-1,3,5triazin — 2 — l) phenol] urea, to polymers, from 12:88. It contained about 5-7% by weight of 1- (4 - {[4- (dimethylamino) piperidine-1-l] carbonyl} feml) -3- [4- (4.65 dimorfolin — 4 — il— 1,3,5 — triazin — 2 — ¡l) phenyl] urea and about 9% by weight of oleic acid in 3% of trifluoroacetic acid The particle size of a nanoparticle thus formed as described in the present application above was of about 74 nm.
EXAMPLE 3 PREPARATION OF FORMULATION C WITH AGENT
THERAPEUTIC (a) Preparation of organic phase loading Trifluoroacetic acid (1600 mg), benzyl alcohol (8827 mg) and RODI water (1500 mg) were mixed, and if necessary, heated to form a solution To this solution was added therapeutic agent, 1- (4 - {[4- (dimethylamino) piperidin-115 yl] carbonyl} feniI) —3— [4— (4,6-dlmorfolln — 4 — I — 1,3,5— triazin-2-yl) phenyl] urea (1468 8 mg), and the resulting mixture was sonicated to form a solution Once the therapeutic agent dissolved, The solution was allowed to cool to room temperature. This solution was added to a solution of pamoic acid (136.5 mg) and DMSO (331 2 mg). This solution was completely mixed with a polymer solution of PLA-PEG in a ratio of 16 mol / 5 mol (643.5 mg) of PLAPEG-GL (14.5 mg) and ethyl acetate (7200 mg).
(b) Preparation of aqueous phase loading. A surfactant, Brij S 100 (polyoxyethylene (100) stearll ether) (200 mg) was dissolved in benzyl alcohol (40 0 g), with stirring, and cold RODI water (959.8 g) was added and mixed on ice until clearing of the solution. The aqueous phase charge was cooled to less than 2 ° C with stirring.
170 (c) Emulsion formation: The ratio by weight of aqueous phase to organic phase was 5: 1. The organic phase was poured into 50.07 g of the aqueous phase which was cooled in a water ice bath, and the mixture was homogenized using a manual homogenizer for 15 seconds. The thick emulsion was fed through a high pressure homogenator with the pressure set at 722 9 bar (10485 psi) in the 1-pass caliper, to form a nanoemulsion (fine emulsion) (d) Nanoparticle formation The nanoemulsion was poured in a quench solution of cold RODI water (1000 g) cooled to less than 2 ° C, and stirred on a stir plate. To the quenched solution was added a cooled solution (less than 2 ° C) of polysorbate 80 (350 g) dissolved in RODI water (650 g), with mixture (e) Concentration of nanoparticles through tangential flow filtration (TFF ) The off phase was concentrated using TFF with Pall cassette
300 kDa (2 membranes) to form a nanoparticle concentrate of approximately 200 ml. The nanoparticle concentrate was diafiltered with approximately 20 dlavolumens of cold RODI water at less than 2 ° C. The volume of the diafiltered nanoparticle concentrate was reduced to a minimum volume.
Consequently, this formulation contained 1- (4 - {[4 (dimethylamino) pipendin-1-yl] carbonyl} phenyl) -3- [4- (4,6-dimorfohn-4-yl-1,3,5— triazin-2-yl) phenyl] urea, and the polymers PLA-PEG (in a molar ratio of 16 5) and PLA-PEG-GL in a weight ratio of PLA-PEG to PLA-PEG-GL of about 44 : 1 and a weight ratio of the therapeutic agent, 1— (4 - {[4— (dimethylamino) piperidin-1-yl] carbonyl} phenyl) -3- [4- (4,6-dimorfohn-4-yl— 1,3,5triazin — 2 — 1) phenyl] urea, to polymers, from 22:64. It contained about 60% by weight of pamoic acid at 1— (4 - [[4— (dimethiamino) piperidin-1-yl] carbonyl} phenyl) -
171
3— [4— (4,6-dimorfohn-4-I-1,3,5-triazin-2-yl) phenol] urea Consequently, the formulation contained about 5% by weight of 1- ( 4 - {[4 (dimethylamino) piper¡d¡n-1-yl] carbonyl} feml) -3- [4- (4,6-d¡morfohn-4-il-1,3,5— triazin —2 — yl) phenyl] urea and 3.2% by weight of pamoic acid The particle size of a nanoparticle thus formed as described in the present application above was about 92 nm.
EXAMPLE 4. FORMULATION D WITH THERAPEUTIC AGENT (a) Preparation of organic filler solution A 7% by weight heated solution of xinafoic acid in benzyl alcohol combined with PLA-PEG in a molar ratio of 16: 5 with ethyl acetate was subjected to whirlwind until dissolved The therapeutic agent, 1- (4 - {[4- (dimethylamino) piperidin1-yl] carbonyl} feni I) -3- [4- (4,6-dimorfohn-4-yl-1, 3,5-triazin-2-l) phenyl] urea, to achieve a final concentration of 15% by weight.
(b) Preparation of aqueous phase loading: Sodium colalate (2.75 g) was dissolved in RODI water (955 5 g) with stirring. Benzyl alcohol (40 g) was added to the aqueous sodium cholate solution, and the mixture was stirred until dissolved.
(c) Emulsion formation. The weight ratio of the aqueous phase to the organic phase was 5 1. The organic phase was poured into the aqueous phase, which was cooled in an ice-water bath, and the mixture was homogemized using a manual homogenizer for 15 seconds. The thick emulsion was fed through a high pressure homogenizer with the pressure set to
722.9 bar (10485 ps¡) in the caliber for 1 pass, to form a nanoemulsion (fine emulsion) (d) Formation of nanoparticles. The nanoemulsion was poured into a quench regulator solution consisting of anhydrous citric acid (19 2 g) in cold RODI water (1000 g) cooled to less than 2 ° C, and brought to pH 4 5 with
172
N sodium hydroxide, and the resulting solution was stirred on a stir plate A cooled solution (less than 2 ° C) of polysorbate 80 (350 g) dissolved in RODI water (650 g) was added with mixture ( e) The nanoparticles were concentrated through tangential flow filtration according to the procedure of Example 1
Consequently, this formulation contained the xinafoic acid counterion Contained 1- (4 - {[4- (dimethylamino) piperidn-1-yl] carbonll} phenyl) -3- [4- (4,6dmorphol- 4-¡-1,3,5-triazin — 2-¡) phenol] urea. The particle size of a nanoparticle thus formed as described in the present application above was about 109 nm
COMPARATIVE EXAMPLE 1, CONTROL SOLUTION (a) Preparation of organic loading solution. A 7.5% by weight solution of benzyl alcohol, prepared by dissolving benzyl alcohol in RODI water, was combined with PLA-PEG in a mixture having a molar ratio of 16 5 with ethyl acetate, and subjected to whirlwind until the solution (b) Preparation of aqueous phase loading: Sodium colalate (2 75 g) was dissolved in RODI water (955.5 g) with stirring Alcohol bencll (40 g) was added to the sodium / water coolant solution, and The mixture was stirred until dissolution (c) Emulsion formation. The weight ratio of aqueous phase to organic phase was 5.1. The organic phase was poured into the aqueous phase, which was cooled in a water ice bath, and the mixture was homogemized using a hand homogenizer for 15 seconds. The thick emulsion was fed through a high pressure homogenizer with the pressure set to
722.9 bar (10485 psi) in the caliber for 1 pass, to form a nanoemulsion (fine emulsion).
(d) Formation of nanoparticles: The nanoemulsion was poured into 600 g of cold RODI water (less than 2 ° C) while stirring on a plate of
173 stirring to form an off phase (the weight ratio of emulsion off was 10 1) To the off phase 64 3 g of a solution of polysorbate 80 (350 g dissolved in 650 g of RODI water) were added, with mixing (e) Concentration of nanoparticles through tangential flow filtration (TFF) 'The shutdown phase was concentrated using TFF with 300 kDa Pall cassette (2 membranes) to form a nanoparticle concentrate of approximately 200 ml The nanoparticle concentrate diafiltered with approximately 20 diavolumens of cold RODI water at less than 2 ° C. The volume of the diafiltered nanoparticle concentrate was reduced to a minimum volume.
COMPARATIVE EXAMPLE 2, SOLUTION B (a) Preparation of organic loading of organic phase Oleic acid (900 mg), trifluoroacetic acid (TFA) (273 mg) were dissolved in benzyl alcohol (8827 mg). The therapeutic agent, 1- (4 - {[4- (dimethylamino) piperine-1-yl] carbonyl} phenyl) -3- [4- (4,6-dimorfolin-4-yl-1,3, 5-triazin-2-yl) phenyl] urea (120 mg) with the solution of oleic acid / TFA / benzyl alcohol, and the mixture was heated to 80 ° C for 10 minutes in order to dissolve the therapeutic agent there once dissolved the 1— (4 - {[4— (dimethiamine) pperidin — 1 — I] carbonii} phenyl) —3— [4— (4,6 — dimorfolin — 4 — il — 1.3 , 5 — triazln — 2 — il) phenyl] urea, The solution was allowed to cool to room temperature. This solution was completely mixed with a polymer solution of PLA-PEG in a ratio of 16 moles / 5 moles (860 mg), PLAPEG-GL (18 9 mg), and ethyl acetate ( 4549 mg) to form a solution (b) Preparation of aqueous phase loading. Sodium colalate (4.5 g) was dissolved in RODI water (955.5 g) in a stir plate. Benzyl alcohol (40 g) was added to the sodium / water coolant solution, and the mixture was stirred on a stir plate until dissolved.
174 (c) Emulsion formation. The weight ratio of aqueous phase to organic phase was 5: 1. The organic phase was poured into 33.4 g of the aqueous phase, which was cooled in an ice-water bath, and the mixture was homogenized using a manual homogenizer for 15 seconds. The thick emulsion was fed through a high pressure homogemator with a pressure set at 722.9 bar (10485 psi) in the gauge, for 1 pass in order to form a nanoemulsion (fine emulsion) (d) Formation of nanoparticles. The nanoemulsion was poured into 401 2 g of cold RODI water (less than 2 ° C) while stirring on a stir plate, to form an off phase To the off phase, 51 4 grams of a solution of polysorbate 80 (350 g dissolved in 650 g of RODI water), with mixture (e) Concentration of nanoparticles through tangential flow filtration (TFF). The off phase was concentrated using TFF with a cassette.
Pall of 300 kDa (2 membranes) in order to form a nanoparticle concentrate of approximately 200 ml. The nanoparticle concentrate was diafiltered with approximately 20 dlavolumens of cold RODI water at less than 2 ° C. The volume of the diafiltered nanoparticle concentrate was reduced to a minimum volume.
Consequently, this formulation contained 1— (4 - {[4— (dimethylamino) piperidin-1-yl] carbonll} phenol) -3- [4- (4,6-dimorfohn-4-yl-1 , 3,5tr¡azin-2-l) feml] urea and PLA-PEG polymers (in a ratio of about 16.5) in a weight ratio of the therapeutic agent to polymers of about 1:14 7. It contained about 6.0% by weight of 1— (4 - {[4— (dimethylamino) piperidin-1-yl] carboml} phenyl) -3- [4- (4,6-dimorfolin-4-yl-1,3 , 5triazin-2-yl) phenyl] urea, about 5 4% of colic acid and about 1 1% by weight of oleic acid
175
EXAMPLE 5 FORMULATION E WITH THERAPEUTIC AGENT.
The procedure of Example 1 was repeated, except that there was no presence of PLA-PEG-GL polymer. The polymer pLA-PEG-GL was replaced with 19 2 mg of PLA-PEG at a ratio of 16 mol / 5 mol, so that the total amount of PLA-PEG present was 850 mg
EXAMPLE 6 FORMULATION F WITH THERAPEUTIC AGENT
The procedure of Example 2 was repeated, except that no PLA-PEG-GL polymer was present. The pLA-PEG-GL polymer was replaced with 20 mg of PLA-PEG at a ratio of 16 mol / 5 mol so that the total amount of PLA-PEG present was 860 mg.
EXAMPLE 7 FORMULATION F WITH THERAPEUTIC AGENT The procedure of Example 3 was repeated except there was no polymer
PLA-PEG-GL present The polymer pLA-PEG-GL was replaced with 14 5 mg 15 PLA-PEG at a ratio of 16 mol / 5 mol so that the total amount of
PLA-PEG present was 658 mg
EXAMPLE 8: FORMULATION RELEASE PROFILE Each formulation was prepared on a scale sufficient to deliver
200 mg of therapeutic agent, 1- (4 - {[4- (dimethylamine) piperidin-120 ¡Ijcarbonyljfenil) —3— [4— (4,6-dimorfolin-4-I-1,3,5-triazin-2 —Il) phenyl] urea, at a concentration of> 2.5 mg / ml (FORMULATION A = 25 g, FORMULATION B = g, FORMULATION C = 10 g) Nanoparticle formulations with 30% by weight sucrose were prepared and poured in vials in aliquots of> 11 mg of therapeutic agent Table 1 summarizes the attributes of the nanoparticles prepared for this study
176
Table 1: Synthesis of FORMULATION A, B, C.
<td>Formulation</td><td>Lot No.</td><td>Load of agent therapeutic</td><td>Size of particle (nm)</td><td>API released at 24 h</td>
<td>TO</td><td> 237-46</td><td> 4%</td><td> 130</td><td> 60%</td>
<td>B</td><td> 237-45</td><td> 5%</td><td> 95</td><td> 22%</td>
<td>C</td><td> 237-44</td><td> 16%</td><td> 100</td><td> 2%</td>
All three lots met the criteria for particle size and therapeutic agent release (90-150 nm, <50% therapeutic agent released at> 2 h). Except for the nanoparticles of FORMULATION A, the lots also met the therapeutic agent load criteria of> 5% Historically, the therapeutic agent load for FORMULATION A has been at the lower limit or below the white loading threshold of So this result was not unexpected.
Figure 3 shows the in vitro release curves for each batch. The in vitro release method used determines the release profiles of these nanoparticles under conditions at 37 ° C using the centrifugal system. The samples were centrifuged at 264,000 xg for 30 minutes, and the supernatant was tested to establish the therapeutic agent concentration. The percentage of cumulative release was determined by comparing the supernatant concentration with the total therapeutic agent concentration before centrifugation.
The in vitro release profile in Figure 3 shows that the therapeutic agent release rate was quantifiably different for each of the formulations. Figure 4 depicts the pharmacokinetics of therapeutic agent nanoparticles in Wistar Han rats.
The protocol was as follows: male Wistar Han rats (approximately six weeks of age; n = 4 / group) with resident cannulas were dosed
177 in the jugular vein, intravenously, with 1 mg / kg bolus of the nanoparticles of FORMULATION A, B and C, or nanoparticles of Formulation A, B and C diluted in 0 9% saline solution At various times after dosing, serial blood collections were made from the jugular vein cannulas, and plasma concentrations of therapeutic agent were quantified by LC-MS / MS Figure 4 (a) shows the pharmacokinetics of nanoparticles against the free therapeutic agent, while (b) shows the same information with omitted free therapeutic agent
Figure 4 (a) Indicates that the three formulations A, B and C evaluated exhibited substantially longer retention times in the bloodstream, over the free API. This corresponds to higher values of AUC and you /<sub>2</sub>, summarized in Table 2 (TA = therapeutic agent, according to its acronym in English)
Table 2: Synthesis of AUC<sub>to</sub>tai and tv data<sub>2</sub> for nanoparticles of FORMULATION A, B & C evaluated.
<td>Parameter</td><td>TA</td><td>Formulation TO</td><td>60% EA</td><td>7% Acid xinafoic</td><td>Formulation C</td><td>Formulation B</td>
<td>AUCtotai (h ng / ml)</td><td> 9195</td><td> 312,972</td><td> 485,188</td><td> 653,749</td><td> 601,768</td><td> 550,539</td>
<td>tl / 2 (h)</td><td> 13.2</td><td> 17.7</td><td> 23.8</td><td> 25.1</td><td> 23.8</td><td> 23.7</td>
EXAMPLE 9- RELEASE PROFILE FOR FORMULATION C 20 FORMULATION C was prepared again as in Example 3, using the traditional batch process on the 2 g and 5 g scale An additional 2 g batch of FORMULATION C was prepared using an acid regulator
178 citric, 50 mM, valued at pH 4 5 with sodium hydroxide, in order to favor the potential ion mating. This pH was selected because it was among the pK<sub>to</sub> of pamoic acid (~ 2.5) and the first pK<sub>to</sub> of 1— (4 - {[4— (dimethylamino) piperidin — 1 — ll] carbonyl} phenyl) —3— [4— (4,6 — dimorfolln — 4 — il — 1,3,5— triazin— 2-yl) phenyl] urea (~ 6.7) Table 3 summarizes the particle attributes for these small-scale lots.
Table 3: Effect of the use of citric acid regulator, pH 4.5, 50 mM, for the shutdown medium in Formulation C
<td>Lot</td><td>Lot No.</td><td>Therapeutic agent load</td><td>Size (nm)</td>
<td>2 g RODI Off</td><td> 237-34-1</td><td> 4.48%</td><td> 101</td>
<td>5 g RODI Off</td><td> 237-34-2</td><td> 2.43%</td><td> 98</td>
<td>2 g Regulated power off</td><td> 237-34-3</td><td> 13.18%</td><td> 92</td>
The longer emulsion processing time of a 2 g batch and a 5 g batch achieved a substantial drop in the therapeutic agent load However, it was demonstrated that using a regulated shutdown at pH 4 5 an increase of almost three times was achieved in the loading of the therapeutic agent, 1— (4 - {[4— (dimethylamine) piperidln — 1 — l] carbonll} fenll) —3— [4— (4,6 — dimorfolln — 4 — I— 1,3,5— triazin-2-yl) fenll] urea
The in vitro release method was used to determine the release profiles of these nanoparticles under conditions at 37 ° C using the centrifugal system. The samples were centrifuged at 264,000 xg for 30 minutes, and the supernatant was tested in order to establish the concentration of therapeutic agent. The percentage of cumulative release was determined by comparing the concentration of supernatant with the concentration of total therapeutic agent before centrifugation. Figure 5 shows that the in vitro release profile was not affected by the use of a regulated shutdown
179
EXAMPLE 10. DETERMINATION OF THE ATTRIBUTES OF
PARTICLE FOR FORMULATION C.
Two 10 g batches of FORMULATION C were prepared with 100 mM citric acid regulator shutdown, valued at pH 4.5, each, by gathering 5 batches of 2 g to avoid the effects of processing time on the drug load of the therapeutic agent, 1- (4 - {[4 (dimethylamino) plperidin-1-yl] carbonyl} phenyl) -3- [4- (4,6-dimorfolin-4-yl-1,3, 5— triazin-2-yl) phenyl] urea Table 4 summarizes the particle attributes for these lots
Table 4. Particle attributes for batches of FORMULATION C using citric acid regulator shutdown, pH 4.5.
<td>Lot No.</td><td>Description</td><td>Load API White</td><td>Solids phase organic</td><td>Load Formulation C</td><td>Size from particle (nm)</td><td>Surfactant</td>
<td> 237-34-3</td><td>8% by weight TFA 7.5% water weight in BA, 1.1 pamoic to therapeutic agent, 20:80 (BA + DMSO) .EA, 50 mM off citric acid pH 4.5</td><td> 22%</td><td> 10%</td><td> 13 18%</td><td> 92</td><td>Brij, 0.02% by weight</td>
<td> 237-36</td><td>8% by weight TFA 7.5% by weight water in BA, 1: 1 pamoic to therapeutic agent, 20:80 (BA + DMSO) .EA, 100 mM off citric acid, pH Four. Five</td><td> 22%</td><td> 10%</td><td> 18.25%</td><td> 100</td><td>Brij, 0.02% by weight</td>
<td> 237-44</td><td>8% by weight TFA 7.5% by weight water in BA, 1: 1 pamoic to therapeutic agent, 20:80 (BA + DMSO): EA, 100 mM off citric acid, pH 4 5, GL pointed</td><td> 22%</td><td> 10%</td><td> 16.30%</td><td> 100</td><td>Brij, 0 02% by weight</td>
BA = benzyl alcohol EA = ethyl alcohol
In vitro release profiles were conducted in the following manner the in vitro release method was used to determine release profiles.
180 of these nanoparticles under conditions at 37 ° C using the centrifugal system. The samples were centrifuged at 264,000 xg for 30 minutes, and the supernatant was tested in order to establish the therapeutic agent concentration. The percentage of cumulative release was determined by comparing the concentration of supernatant with the concentration of total therapeutic agent before centrifugation. The results are shown in Figure 6.
From the investigations, it was determined that the maximum therapeutic agent load in formulation C was achieved at pH 4 5 Without wishing to limit it, it is believed that this can be attributed to the fact that ion pairing between the therapeutic agent and the counterion is encouraged when the pH of the solution is lower than pK<sub>to</sub> of the protonated therapeutic agent drug and superior to pK<sub>to</sub> of the acid molecule (pamoic acid) It is believed that this effect is theoretically maximized when the largest fraction of both species is in its ionized state
EXAMPLE 11, XENOINJERTO PROGRAMMING STUDY
MDAMB361_DE_NANOPARTÍCULAS_DE_1— (4 — ff4— (DIMETHYLAMINE) PIPERIDIN-1-NARBONIL) PHENYL) -3-í4- (4,6DIMORFOLIN-4-II-1,3,5-TRIAZIN-2-ll) PHENYLJUREA Q4D FRONT A4
SCID / bg female mice with an age of about 6 weeks were obtained from Charles Rlver Laboratories (Wilmington, MA) The animals were kept in a clean room condition in capped cages filtered by sterilization with Alpha-Dri bed and housed in feeders vented filtered with HEPA. The animals received food for sterile rodents and water ad libitum. All procedures were conducted in accordance with the
Institute for Laboratory Animal Research Guide, for the Care and Use of Laboratory Animals [Instltute for Laboratory Animal Research Guide for the Care and Use of Laboratory Animáis] and with the guidelines
181 of Pfizer of the Animal Care and Use Committee
Three to four days before the inoculation of tumor cells, the animals were implanted with a 0.36 mg, 60 d release,
173-estradiol (Innovative Research of America). MDA-MB-361 cells were harvested at 80-90% confluence, and viability over 80-90% (NS) was supplemented with 50% Matrlgel (BD Blosciences, San José CA) in order to facilitate the taking of tumor. Cells (5 x 106 in 200 µΙ) were implanted subcutaneously (SC) in the back flank region of the mouse and grown to the designated size before compound administration for each experiment. Tumor size was determined by measurement with an electronic caliber, and tumor volume was calculated as the product of its length x width<sup>2</sup> x 0 5. When tumor volumes reached an average of 250 mm<sup>3</sup>, the mice were randomized by treatment groups that included vehicle control group with Intravenous Injections (iv) of the corresponding drug, in a dose of 10 ml / kg volume with a program every four days (Q4D) or every eight days (Q8D) Animals were treated with 5 or 10 mg / kg of 1— (4 - ([4— (dimethylamino) piperidin-1-yl] carbonyl} fenll) - 3- [4- (4,6-dimorfolln- 4- il-1,3,520 triazin-2-yl) phenyl] urea or 25 mg / kg of Formulation B nanoparticle at each injection
Figure 7 shows that Formulation B nanoparticles dosed every 8 days have similar efficacy compared to once every 4 days, and that Formulation B nanoparticles can achieve a dosing frequency of 2 weeks in the clinic.
EXAMPLE 12. STUDY OF DELAY OF TUMOR GROWTH
AND INHIBITION OF MDAMB361 TUMOR GROWTH
182
SCID / bg female mice with an age of about 6 weeks were obtained from Charles River Laboratories (Wilmington, MA). The animals were kept in clean-room conditions in capped cages filtered by sterilization with Alpha-Dri bed and housed in feeders. vented filtered with HEPA. The animals received food for sterile rodents and water ad libitum. All procedures were conducted in accordance with the Institute for Laboratory Animal Research Guide, for the Care and Use of Laboratory Animals and with the guidelines of Pfizer of the Animal Care and Use Committee
Three to four days before the inoculation of tumor cells, the animals were implanted with a minisphere of 0.36 mg, 60 d release, 173-estradol (Innovative Research of America). MDA-MB-361 cells were harvested at 80-90% confluence, and viability over 80-90% (NS) was supplemented with 50% Matrigel (BD Biosciences, San José CA) in order to facilitate tumor taking . Cells (5 x 106 ¡n 200 μΙ) were implanted subcutaneously (SC) in the back flank region of the mouse and allowed to grow to the designated size before compound administration for each experiment. Tumor size was determined. by measuring with an electronic caliber, and tumor volume was calculated as the product of its length x width<sup>2</sup> x 0.5 When tumor volumes reached an average of 250 mm<sup>3</sup>, the mice were randomized by treatment groups that included vehicle control group with intravenous injections (i v.) of the corresponding drug, in a dose of 10 ml / kg volume with a four-day program (Q4D) for 4 dose After the 4th dose, the animals were additionally mummed in order to establish the
183 Tumor growth delay Animals were treated with 10 mg / kg of 1 (4 - {[4— (dimethylamino) piperidin-1-yl] carbonyl} phenyl) —3— [4— (4,6-dimorfohn-4 —Il—
1,3,5-triazin-2-yl) phenyl] urea; 2, 10, or 25 mg / kg of the nanoparticles of Formulation A or B; or 10 or 25 mg / kg of the nanoparticles of Formulation C in each injection.
Figures 8A, 8B and 8C show that the nanoparticles of Formulation B and the nanoparticles of Formulation C Inhibit tumor growth with improved efficacy, compared to 1— (4 - {[4— (dimethylamino) piperidin— 1 — ¡] carbonyl} phenol) —3— [4— (4,6 — dimorfohn — 4 — yl — 1,3,5— triazin-2-yl) phenyl] urea (bare API) and nanoparticles of Formulation A
EXAMPLE 13- GROWTH INHIBITION STUDY
MODEL TUMOR WM266-4
Female nu / nu mice of an age of about 8 weeks were obtained from Charles River Laboratories (Wilmington, MA) The animals were kept in clean room conditions in cages with lid filtered by sterilization with Alpha-Dr bedding and housed in ventilated feeders filtered with HEPA. Animals received food for sterile rodents and water ad libitum. All procedures were conducted according to with the Institute for Laboratory Animal Research Guide, for the
Care and Use of Laboratory Animals [Institute for Laboratory Animal Research Guide for the Care and Use of Laboratory Animáis] and with the Pfizer guidelines of the Animal Care and Use Commlttee Committee
WM266-4 cells were harvested at 80-90% confluence, and viability over 80-90% (NS) was supplemented with 50% Matrigel (BD Biosciences, San José CA) in order to facilitate the taking of the tumor. (2x10<sup>6</sup> in 200 pl) they were implanted subcutaneously (SC) in the flank region
184 rear of the mouse, and were allowed to grow to the designated size before compound administration for each experiment. Tumor size was determined by measurement with an electronic caliber, and tumor volume was calculated as the product of its length x width<sup>2</sup> x 0 5 When tumor volumes reached an average of 400 mm<sup>3</sup>, mice were randomized by treatment groups that included vehicle control group with oral daily doses (QD (daily)) of PF-0192513-00-0004 (PD-901) and / or Intravenous (iv) injections of the Nanoparticle drugs, B and C, in a volume of 10 ml / kg, with a program every four days (Q4D) for 4 doses. Dosage and drug are described in the legends of the Figures. The animals were treated with 10 mg / kg of 1- (4 {[4— (dimethylamino) piperidin-1-l] carbonyl} phenyl) -3- [4- (4,6-dimorfolin-4-yl-1 , 3,5— triazin-2-yl) phenyl] urea or 10, 25 or 50 mg / kg of the nanoparticles of Formulation B or C at each injection
Figure 9 illustrates that the Nanoparticles of Formulation C produce greater tolerability and efficacy than the nanoparticles of Formulation B or 1 (4 - {[4- (dimethylamino) pperperine-1-yl] carbonyl] phenyl ) -3- [4- (4,6-d¡morfohn-4-yl1,3,5-triazin-2-yl) phenyl] urea (naked API).
EXAMPLE 14- IN VIVO WHITE MODULATION STUDIES
WITH NANOPARTICLES.
White modulation studies were conducted in vivo to determine the effects of treatment with the nanoparticles of Formulation A, B and C on phosphorylation of S6 on S235 / S236 and AKT on S473 and T308 by ELISA Fresh tumors were ground resected to fine powder, using a Martor metal mortar and granite path, under liquid nitrogen. Tumor dust was stored at -80 ° C until tumor lysates were prepared for the ELISA assay Briefly, an aliquot (50 mg) was placed
185 of tumor powder in a previously cooled 2 ml Martor tube, 500 pl of cold lysis regulator [20 mM Tris-HCI (pH 7.5), 150 mM NaCl, 1 0 mM Na were added<sub>2</sub> EDTA, 1'mM EGTA, 1% NP-40, 1% sodium deoxycholate, 2.5 mM sodium pyrophosphate, I mM β-glycerophosphate, 1 mM Na<sub>3</sub>VO<sub>4</sub>, 1 pg / ml leupeptin, 1 mM PMSF, 1x protease / phosphatase inhibitor cocktail], the tube was embedded in wet ice, and the samples were homogenized at a rate of 6 for 30 seconds, using a tissue homogemizer. the samples, and were instantly frozen on dry ice and thawed on wet ice. The freeze and thaw cycle was repeated, then the samples were centrifuged in an Eppendorf cold refrigerated centrifuge at 13,000 rpm. for 10 minutes The supernatant was collected, and the total protein and phosphoAKT levels (S473 and T308) were centrifuged again and the total protein and phosphoS6 levels in the tumor lysates were determined by ELISA. The extent of phosphorylation in resected tumors of treated animals was compared with that in resected tumors of vehicle treated animals, at the same point.
Figures 8A, 8B and 8C show that the nanoparticles of Formulation B and the nanoparticles of Formulation C inhibit pS6 with improved efficacy compared to 1- (4 - {[4- (dimethylamino) piperidin-120 ¡IJcarbo ni IJfeni I ) —3— [4— (4,6-dimorfolin-4-i I-1,3,5-triazin-2-yl) phenyl] urea (bare API) and nanoparticles of Formulation A, and demonstrate persistent modulation of target observed until day 7 after dosing
EXAMPLE 15 ANALYSIS OF GLUCOSE AND INSULIN LEVELS
AFTER TREATMENT WITH NANOPARTICLES
Glucose: In the studies of mice or rats, approximately 100 pl of plasma (EDTA as an anticoagulant) was used for the evaluation of glucose content based on an enzymatic assay
186 published by Slein (Bergmeyer HU, ed. Slein MW. Methods of Enzymatic Analysis. New York, NY: Academic Press, 1974 1196-1201), using the enzymes hexoqumase and glucose-6-phosphate dehydrogenase Plasma glucose was measured with the system Advia® 120 Glucose Hexokinase_3 (GLUH_3) with the automated hematology analysis instrument (Siemens Healthcare Diagnostlcs Inc, Tarrytown, New York). The Advia Chemistry Glucose Hexokinase_3 assay (GLUH_3) used a two component reagent. The plasma sample was added to Reagent 1, which contained the regulator, ATP and NAD. The absorbance readings of the sample in Reagent 1 were taken and used to correct interference substances in the sample Reagent 2 (the regulator, ATP, NAD, Hexoqumasa and G6PD) was added, which initiated the conversion of glucose and the development of absorbance at 340/410 nm The difference between absorbance in Reagent 1 and Reagent 2 was proportional to the concentration of glucose.
Insulin. In the studies of mice or rats, approximately pl of plasma (EDTA as anticoagulant) were used for the evaluation of insulin content. The insulin test was an ELISA test (enzyme-linked immunosorbent assay, according to its acronym in English) of intercalation, based on a rat / mouse insulin ELISA equipment purchased from EMD Millipore Corporation (St. Charles, Missouri) The test procedure was as follows 1) capture of insulin molecules from the plasma samples to the receptacles of a microtiter plate coated with a previously titrated amount of a mouse anti-mouse monoclonal antibody, and the binding of biotinylated polyclonal antibodies to the captured insulin, 2) the washing of unbound materials, from the samples, 3) the binding of rustican horseradish peroxidase to immobilized biotinylated antibodies, 4) the washing of
187 free enzyme conjugates, and 5) the quantiflcaclone of antibody-enzyme conjugates immobilized by mummifying the activities of rustican horseradish peroxidase in the presence of the substrate 3,3 ', 5,5'tetramethylbenzidlna Enzyme activity was measured spectrophotometrically by the highest absorbance at 450 nm, which was directly proportional to the amount of Insulin captured in the plasma sample. Plasma insulin concentration was calculated by interpolation from a reference curve generated in the same assay with reference models of known rat or mouse insulin concentrations.
Figure 10 illustrates that Formulation B and C nanoparticles can have an improved safety profile on 1— (4 - ([4— (dlmethylamino) plperidin-1-yl] carboml} fenll) —3— [4 - (4,6 — dimorfolln — 4 — il — 1,3,5— trlazin-2-¡l) fenll] urea (naked API).
EQUIVALENTS
Those skilled in the art will recognize, or may evaluate using no more than routine experimentation, many equivalents of the specific embodiments of the invention, as described in this application. Such equivalents are intended to be contemplated by the following claims.
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Numbers
- Publication
- 2016000135
- Publication, DOCDB
- 20160135
- Publication, EPODOC
- CU20160135
- Application
- 20160000135
- Application, DOCDB
- 20160135
- Application, EPODOC
- CU20160000135
Titles2
- English
- NANOPARTICLES THERAPEUTIC THAT INCLUDE A THERAPEUTIC AGENT AND A HYDROPHOBIC ACID, METHODS OF PREPARATION AND USES THEREOF
- Spanish
- NANOPARTÍCULAS TERAPEÚTICAS QUE COMPRENDEN UN AGENTE TERAPÉUTICO Y UN ÁCIDO HIDROFÓBICO, MÉTODOS DE ELABORACIÓN Y USOS DE LAS MISMAS
Classification
- CPC, 18
- A61K9/5146
- A61K31/5377
- A61K9/5153
- A61K47/12
- A61K9/5123
- A61K9/1075
- A61K47/28
- A61K47/34
- A61P1/00
- A61P1/16
- A61P1/18
- A61P11/00
- A61P13/12
- A61P15/00
- A61P35/00
- A61P35/02
- A61K9/107
- A61K9/51
- IPC, 4
- A61K9 107
- A61K31 5377
- A61K47 12
- A61K47 28