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    • 23. 发明授权
    • Stabilized reverse micelle compositions and uses thereof
    • 稳定的反胶束组合物及其用途
    • US08535650B2
    • 2013-09-17
    • US10497775
    • 2002-12-03
    • Panayiotis P. ConstantinidesLikan LiangEun-Hyun Jang
    • Panayiotis P. ConstantinidesLikan LiangEun-Hyun Jang
    • A61K9/107A61K31/727
    • A61K31/727A61K8/0291A61K9/107A61K9/1075A61K9/4891A61K38/09A61K38/23A61K38/27A61K38/28A61K38/29A61Q19/00
    • The invention relates to compositions and methods for drug delivery suitable for promoting the transmucosal absorption of drugs, especially drugs with poor intrinsic bioavailability, such as peptides, proteins, vaccines, and nucleic acids. The delivery system of this invention preferably comprises fatty acid esters and their hydrophilic derivatives that associate with water and other polar solvents to form reverse micelles that are physically stabilized in the presence of gastrointestinal fluid, water, and other hydrophilic solvents. Such stable reverse micelles are formed by suitable mixtures of polymeric or non-polymeric compounds with amphiphiles. Micelles made using these methods undergo phase transformation more slowly resulting in delayed drug release profiles and sustained absorption. When administered as a pharmaceutical to mucosal surfaces following oral ingestion or intranasal administration, therapeutic molecules principally solubilized in the aqueous phase are protected from digestion by mucosal enzymes and other mucosal degradative processes and are taken up by absorptive cell mechanisms and reach appropriate body compartments. The reverse micelle compositions may comprise mono-, di-glycerides and/or their transesterified products containing C6-C12 fatty acids chains, wherein the transester groups consist of hydrophilic moieties.
    • 本发明涉及用于药物递送的组合物和方法,其适用于促进药物,特别是具有差的内在生物利用度的药物(例如肽,蛋白质,疫苗和核酸)的经粘膜吸收。 本发明的递送系统优选包括与水和其它极性溶剂缔合的脂肪酸酯及其亲水性衍生物,以形成在胃肠液,水和其它亲水溶剂存在下物理稳定的反胶束。 这种稳定的反胶束由聚合物或非聚合物与两亲物的合适混合物形成。 使用这些方法制备的胶束进行相变更慢,导致延迟的药物释放曲线和持续吸收。 当口服摄取或鼻内给药后作为药物施用于粘膜表面时,主要溶解在水相中的治疗分子被保护不被粘膜酶和其它粘膜降解过程消化,并被吸收细胞机制吸收并达到适当的身体隔室。 反胶束组合物可以包含含有C 6 -C 12脂肪酸链的单 - ,二 - 甘油酯和/或其酯交换产物,其中所述酯基组由亲水部分组成。
    • 28. 发明申请
    • Lipid particles and suspensions and uses thereof
    • 脂质颗粒和悬浮液及其用途
    • US20060078618A1
    • 2006-04-13
    • US10498572
    • 2002-12-11
    • Panayiotis ConstantinidesReena PatilLikan Liang
    • Panayiotis ConstantinidesReena PatilLikan Liang
    • A61K9/14
    • A61K9/1075A61K9/0019A61K9/127
    • The present invention relates to formulations and methods for the mucosal and parenteral administration of lipid particles an suspensions. The formulations of this invention are stable lipid particles useful for oral delivery of water-insoluble therapeutic agents, vaccines and diagnostics. The compositions of this invention promote the mucosal absorption of biologically active molecules across mucosal epithelial barriers. Stabilization of lipid particles is achieved by coating the hydrophobic central core with a polymer shell. The polymer shell can include bioadhesive agents, ligands, and absorption promoting agents. This invention relates to oral drug delivery systems for hydrophobic drugs, and in particular is concerned with improving the bioavailability of hydrophobic drugs from such systems. Using this system, anticancer drugs such as taxanes are orally effective.
    • 本发明涉及用于粘膜和肠胃外给予脂质颗粒悬浮液的制剂和方法。 本发明的制剂是用于口服递送水不溶性治疗剂,疫苗和诊断的稳定的脂质颗粒。 本发明的组合物促进生物活性分子穿过粘膜上皮屏障的粘膜吸收。 脂质颗粒的稳定通过用聚合物壳涂覆疏水性中心核来实现。 聚合物壳可以包括生物粘附剂,配体和吸收促进剂。 本发明涉及用于疏水药物的口服药物递送系统,并且特别涉及提高来自这种系统的疏水性药物的生物利用度。 使用该系统,抗癌药如紫杉烷是口服有效的。