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    • 11. 发明授权
    • Modified-release particles of polyelectrolytes and pharmaceutical formulations thereof
    • US08481019B2
    • 2013-07-09
    • US12149552
    • 2008-05-05
    • Cecile Bonnet-GonnetFrédéric ChecotYou-Ping ChanOlivier Breyne
    • Cecile Bonnet-GonnetFrédéric ChecotYou-Ping ChanOlivier Breyne
    • A61K31/74
    • A61K9/5146A61K9/1641
    • The present invention relates to novel particles comprising polyelectrolyte polymers which are transporters of active principle (AP), in particular protein and peptide active principle, and to novel modified-release pharmaceutical formulations comprising said AP microparticles.These novel particles loaded with AP release the AP over a prolonged period of time of several days, or even several weeks.The invention relates, in a first aspect, to particles comprising: a) a first polyelectrolyte polymer (PE1) in a charged state, carrying side hydrophobic groups (GH), wherein said first polyelectrolyte polymer (PE1) can spontaneously form, in water, a colloidal solution of particles at least one pHm value of the pH of between 3 and 8; b) a second polyelectrolyte polymer (PE2) of opposite polarity to the first polyelectrolyte polymer (PE1), wherein said second polyelectrolyte polymer (PE2) forms, in water, a solution or a colloidal solution at said pHm value of the pH; and c) at least one active principle (AP) associated noncovalently with the particles of the colloidal solution of the first polyelectrolyte polymer (PE1); wherein said particles are obtained by mixing, at a pH equal to pHm, the first polyelectrolyte polymer (PE1), in the form of a colloidal solution of particles associated with the active principle (AP), with the second polyelectrolyte polymer (PE2), in the form of a solution or colloidal solution. The invention also relates to the process for the preparation of these particles, to a pharmaceutical formulation comprising such particles and to a process for the preparation of medicaments.
    • 12. 发明申请
    • Polyglutamic acids functionalized by cationic groups and hydrophobic groups and applications thereof, in particular therapeutic applications thereof
    • 由阳离子基团和疏水基团官能化的聚谷氨酸及其应用,特别是其治疗应用
    • US20090012028A1
    • 2009-01-08
    • US12149542
    • 2008-05-05
    • You-Ping ChanCecile Bonnet-GonnetOlivier Breyne
    • You-Ping ChanCecile Bonnet-GonnetOlivier Breyne
    • A61K47/36A61K31/711A61K31/7105C08G63/685
    • C08G69/10A61K9/10A61K47/34A61K47/645C08G69/48
    • The present invention relates to novel biodegradable materials based on modified polyamino acids that are useful in particular in the vectorization of active principle(s) (APs). The invention is also directed to novel pharmaceutical, cosmetic, health-food or plant-protection compositions based on these polyamino acids.The aim of the invention is to provide a novel polymeric starting material which can be used for AP vectorization and which satisfy all the requirements: biocompatibility, biodegradability, ability to easily associate with or dissolve numerous active principles and to release these active principles in vivo. This goal is achieved by the present invention, which relates to novel polyglutamates modified by cationic groups, which, if they can be deprotonated, exhibit a pKa equal to or greater than 7, and by hydrophobic groups comprising from 8 to 30 carbon atoms.These polyglutamates modified by cationic groups are easily and economically converted into particles for the vectorization of active principles, these particles being themselves capable of forming stable aqueous colloidal suspensions. These modified polyglutamates exhibit the advantage of being less viscous than other analogous polymers while retaining an ability to associate proteins, such as insulin. Some are soluble in water at acidic pH and become insoluble at physiological pH (7.4) and should thus, during subcutaneous injection, precipitate on the site of injection.
    • 本发明涉及基于改性聚氨基酸的新型可生物降解材料,其特别用于活性成分(AP)的向量化。 本发明还涉及基于这些聚氨基酸的新型药物,化妆品,保健食品或植物保护组合物。 本发明的目的是提供一种新颖的聚合起始材料,其可用于AP向量化,并且其满足所有要求:生物相容性,生物降解性,容易地与许多活性成分缔合或溶解的能力,并在体内释放这些活性成分。 该目的通过本发明来实现,本发明涉及由阳离子基团修饰的新的聚谷氨酸,如果它们可以去质子化,表现出等于或大于7的pKa,以及含有8至30个碳原子的疏水基团。 通过阳离子基团改性的这些聚谷氨酸可容易且经济地转化成用于活性成分载体化的颗粒,这些颗粒本身能够形成稳定的水性胶态悬浮液。 这些改性的聚谷氨酸显示出比其它类似聚合物粘稠度较低的优点,同时保留了使蛋白质如胰岛素相关联的能力。 一些在酸性pH下溶于水,在生理pH(7.4)下变得不溶,因此皮下注射时,在注射部位沉淀。
    • 14. 发明申请
    • Polyamino acids functionalised with at least one hydrophobic group and applications thereof particularly therapeutic applications
    • 用至少一个疏水基团官能化的聚氨基酸及其应用特别是治疗应用
    • US20070010652A1
    • 2007-01-11
    • US10558617
    • 2004-05-28
    • Stephanie AngotOlivier BreyneYou-Ping Chan
    • Stephanie AngotOlivier BreyneYou-Ping Chan
    • C08G69/10
    • A61K8/88A61K47/645A61K2800/57A61Q19/00C08G69/10C08G69/48
    • The invention relates to novel materials based on biodegradable polyamino acids, particularly useful for the vectorisation of active principals (PA). The invention further relates to novel, pharmaceutical, cosmetic, dietary or phytosanitary compositions based on said polyamino acids. The aim of the invention is to provide a novel polymeric raw material, for use in the vectorisation of PA and with an optimal match for all the requirements of the type: biocompatibility, biodegradability, stability, ability to easily associate with numerous active principals or to solubilise the same and to liberate said active principals in vivo. Said aim is achieved with polyamino acids comprising aspartic and/or glutamate units, some of which carry at least one graft, characterised in that at least one of said grafts is bonded to an aspartic or glutamate unit by means of an amino acids spacer based on Leu, and/or Ileu, and/or Val, and/or Phe and a hydrophobic group with C6-C30 is connected by an ester bond to the spacer. Said specific amino acid spacers guarantee an improved stability to hydrolysis and a higher association quotient with proteins when compared with conventional analogous products. Said polymers have the advantage of easily and economically being transformed into vectorisation particles for active principals said particles being themselves able to form stable aqueous colloidal suspensions.
    • 本发明涉及基于可生物降解的聚氨基酸的新型材料,特别适用于活性成分(PA)的向量化。 本发明进一步涉及基于所述聚氨基酸的新型药物,化妆品,膳食或植物检疫组合物。 本发明的目的是提供一种新型的聚合物原料,用于PA的向量化,并具有与以下类型的所有要求的最佳匹配:生物相容性,生物可降解性,稳定性,容易与许多活性成分相关的能力或 溶解相同并在体内释放所述活性成分。 所述目的通过包含天冬氨酸和/或谷氨酸单体的聚氨基酸实现,其中一些氨基酸携带至少一个接枝物,其特征在于至少一个所述移植物通过氨基酸间隔基与天冬氨酸或谷氨酸单元结合,基于 Leu和/或Ileu和/或Val,和/或Phe和具有C6-C30的疏水基团通过酯键连接到间隔物上。 当与常规类似产物相比时,所述特异性氨基酸间隔物保证了水解的稳定性提高和与蛋白质的较高缔合商。 所述聚合物具有容易且经济地转化成用于活性原料的载体化颗粒的优点,所述颗粒本身能够形成稳定的水性胶体悬浮液。
    • 17. 发明申请
    • Polyamino acids functionalized by hydrophobic grafts bearing an anionic charge and applications thereof, such as therapeutic applications
    • 由具有阴离子电荷的疏水性接枝物官能化的聚氨基酸及其应用,例如治疗应用
    • US20100098656A1
    • 2010-04-22
    • US11658803
    • 2005-07-25
    • Olivier BreyneGauthier PouliquenYou-Ping Chan
    • Olivier BreyneGauthier PouliquenYou-Ping Chan
    • A61K38/16C07K2/00A61K38/18A61K38/20A61K38/21
    • C08G69/10A61K8/88A61K2800/57A61Q19/00C08G69/48
    • The present invention relates to novel materials based on biodegradable polyamino acids that are useful especially for the vectorization of active principle(s) (AP). The invention further relates to novel pharmaceutical, cosmetic, dietetic or phytosanitary compositions based on these polyamino acids. The object of the invention is to provide a novel polymer starting material that is capable of being used for the vectorization of AP and makes it possible on the one hand to achieve high polymer/AP ratios, and on the other hand optimally to satisfy all the specifications required in the case in point: biocompatibility, biodegradability, ability to associate easily with numerous active principles or to solubilize them, and ability to release these active principles in vivo. This object is achieved by the present invention, which relates first and foremost to linear polyamino acids comprising aspartic units or glutamic units and having hydrophobic grafts comprising hydrophobic groups containing from 8 to 30 carbon atoms, at least one of these hydrophobic grafts having at least one anionic charge and/or one or more mutually identical or different ionizable groups each capable of giving rise to at least one anionic charge. These polymers are amphiphilic and anionic and are capable of being converted easily and economically to particles for the vectorization of active principles, these particles themselves being capable of forming stable aqueous colloidal suspensions.
    • 本发明涉及基于可生物降解的聚氨基酸的新型材料,其特别用于活性成分(AP)的向量化。 本发明还涉及基于这些聚氨基酸的新型药物,化妆品,饮食或植物检疫组合物。 本发明的目的是提供一种新的聚合物起始材料,其能够用于AP的向量化,并且一方面可以实现高聚合物/ AP比率,另一方面最佳地满足所有 在这种情况下需要的规格:生物相容性,生物降解能力,容易与许多活性成分缔合或溶解它们的能力以及在体内释放这些活性成分的能力。 该目的通过本发明来实现,本发明首先涉及包含天冬氨酸单元或谷氨酸单元并具有包含含有8至30个碳原子的疏水基团的疏水性接枝的线性聚氨基酸,这些疏水性移植物中的至少一种具有至少一个 阴离子电荷和/或一个或多个相互相同或不同的可离子化基团,每个基团能够产生至少一种阴离子电荷。 这些聚合物是两亲性和阴离子性的,并且能够容易地和经济地转化成用于活性成分载体化的颗粒,这些颗粒本身能够形成稳定的水性胶态悬浮液。
    • 18. 发明申请
    • Modified-release particles of polyelectrolytes and pharmaceutical formulations thereof
    • 聚电解质的改性释放颗粒及其药物制剂
    • US20090011039A1
    • 2009-01-08
    • US12149552
    • 2008-05-05
    • Cecile Bonnet-GonnetFrederic ChecotYou-Ping ChanOlivier Breyne
    • Cecile Bonnet-GonnetFrederic ChecotYou-Ping ChanOlivier Breyne
    • A61K47/30A61K9/14
    • A61K9/5146A61K9/1641
    • The present invention relates to novel particles comprising polyelectrolyte polymers which are transporters of active principle (AP), in particular protein and peptide active principle, and to novel modified-release pharmaceutical formulations comprising said AP microparticles.These novel particles loaded with AP release the AP over a prolonged period of time of several days, or even several weeks.The invention relates, in a first aspect, to particles comprising: a) a first polyelectrolyte polymer (PE1) in a charged state, carrying side hydrophobic groups (GH), wherein said first polyelectrolyte polymer (PE1) can spontaneously form, in water, a colloidal solution of particles at least one pHm value of the pH of between 3 and 8; b) a second polyelectrolyte polymer (PE2) of opposite polarity to the first polyelectrolyte polymer (PE1), wherein said second polyelectrolyte polymer (PE2) forms, in water, a solution or a colloidal solution at said pHm value of the pH; and c) at least one active principle (AP) associated noncovalently with the particles of the colloidal solution of the first polyelectrolyte polymer (PE1); wherein said particles are obtained by mixing, at a pH equal to pHm, the first polyelectrolyte polymer (PE1), in the form of a colloidal solution of particles associated with the active principle (AP), with the second polyelectrolyte polymer (PE2), in the form of a solution or colloidal solution. The invention also relates to the process for the preparation of these particles, to a pharmaceutical formulation comprising such particles and to a process for the preparation of medicaments.
    • 本发明涉及包含聚电解质聚合物的新型颗粒,其为活性成分(AP)的转运体,特别是蛋白质和肽活性成分,以及包含所述AP微粒的新型改性释放药物制剂。 装载AP的这些新型颗粒在几天甚至几周的较长时间内释放AP。 本发明在第一方面涉及包含以下的颗粒:a)带电状态的第一聚电解质聚合物(PE1),其携带侧疏水基团(GH),其中所述第一聚电解质聚合物(PE1)可在水中自发形成, 颗粒的胶体溶液,其pH值在3至8之间的至少一个pHm值; b)与第一聚电解质聚合物(PE1)相反极性的第二聚电解质聚合物(PE2),其中所述第二聚电解质聚合物(PE2)在水中以所述pHm的pH值在水中形成溶液或胶体溶液; 和c)与第一聚电解质聚合物(PE1)的胶体溶液的颗粒非共价结合的至少一种活性成分(AP); 其中所述颗粒是通过在等于pHm的pH下,以与活性成分(AP)相关的颗粒的胶态溶液与第二聚电解质聚合物(PE2)的形式混合第一聚电解质聚合物(PE1)而获得的, 以溶液或胶体溶液的形式存在。 本发明还涉及制备这些颗粒的方法,包括这种颗粒的药物制剂和制备药物的方法。