Method for controlled release of parathyroid hormone from encapsulated poly(lactic-glycolic)acid microspheres
    10.
    发明授权
    Method for controlled release of parathyroid hormone from encapsulated poly(lactic-glycolic)acid microspheres 有权
    从封装的聚(乳酸 - 乙醇酸)微球控释甲状旁腺激素的方法

    公开(公告)号:US08865220B2

    公开(公告)日:2014-10-21

    申请号:US12814955

    申请日:2010-06-14

    IPC分类号: A61K9/16 A61K9/50 A61K38/29

    摘要: The present invention provides a method for producing a controlled release microsphere with mean average size greater than 50 μm, comprising preparing a water-in-oil (w/o) emulsion comprising an inner aqueous layer containing a pharmaceutically effective amount of a biologically active polypeptide with activity similar to parathyroid hormone, and an oil layer containing a polymer substance of poly(lactic-co-glycolic acid) (PLGA), then adding the w/o emulsion into aqueous polyvinyl alcohol (PVA) solution to form a water-in-oil-in-water (w/o/w) double emulsion and then desorbing the solvent in the oil layer. The present invention also provides a controlled release microsphere prepared by the method and use thereof.

    摘要翻译: 本发明提供一种制备平均粒径大于50μm的控释微球的方法,包括制备包含含有药学有效量的生物活性多肽的内含水层的油包水(w / o)乳液 具有类似于甲状旁腺激素的活性,以及​​含有聚(乳酸 - 共 - 乙醇酸)(PLGA)的聚合物物质的油层,然后将w / o乳液加入到聚乙烯醇(PVA)水溶液中以形成水 - 水包油(w / o / w)双重乳液,然后解吸油层中的溶剂。 本发明还提供了通过该方法和用途制备的控释微球。