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    • 55. 发明授权
    • Compositions for parenteral administration and sustained-release of therapeutic agents
    • 用于肠胃外给药和治疗剂缓释的组合物
    • US07220433B2
    • 2007-05-22
    • US10608507
    • 2003-06-27
    • Han CuiJoel RosenblattRam L. KatariaChuanbin Wu
    • Han CuiJoel RosenblattRam L. KatariaChuanbin Wu
    • A61K9/16
    • A61K9/5073A61K47/34
    • The present invention is directed to parenterally-administrable microparticles for providing sustained-release of a therapeutic agent in the body, where the microparticles include a polymeric core containing a therapeutically effective amount of a therapeutic agent disposed therein, a first film encapsulating the core, the first film prepared from a first biodegradable polymer soluble in an appropriate solvent therefore, and a second film encapsulating the core and the first film, the second film prepared from a biodegradable polymer soluble in an appropriate solvent therefore, wherein the first film is insoluble in the solvent used to prepare the second film, and to parenterally-administrable compositions containing such microparticles dispersed in a suitable carrier therefore.
    • 本发明涉及用于在体内提供治疗剂持续释放的肠胃外给药微粒,其中微粒包括含有治疗有效量的治疗剂的聚合物芯,其中包含核心的第一膜, 因此,由可溶于适当溶剂的第一可生物降解聚合物制备的第一膜以及包封芯和第一膜的第二膜,由可溶于适当溶剂的可生物降解的聚合物制备的第二膜,其中第一膜不溶于 因此用于制备第二膜的溶剂,以及含有分散在合适载体中的这种微粒的肠胃外给药组合物。