Sustainded-release composition including amorphous polymer
    2.
    发明申请
    Sustainded-release composition including amorphous polymer 有权
    包括无定形聚合物的持久释放组合物

    公开(公告)号:US20020132007A1

    公开(公告)日:2002-09-19

    申请号:US09877330

    申请日:2001-06-07

    IPC分类号: A61K009/14

    摘要: Provided is a sustained release composition for sustained release of a pharmaceutical substance. The composition includes a biocompatible polymer that is highly amorphous and a pharmaceutical substance in a hydrophobic ion complex with an amphiphilic material. Also provided a compressed antisolvent method for manufacturing the composition, various product forms incorporating the composition and various uses for the composition.

    摘要翻译: 提供用于药物物质的持续释放的持续释放组合物。 该组合物包括高度无定形的生物相容性聚合物和与两亲性物质在疏水性离子络合物中的药物。 还提供了用于制造组合物的压缩抗溶剂方法,包含组合物的各种产品形式和用于组合物的各种用途。

    Biocompatible cationic detergents and uses therefor
    3.
    发明申请
    Biocompatible cationic detergents and uses therefor 审中-公开
    生物相容性阳离子洗涤剂及其用途

    公开(公告)号:US20020032166A1

    公开(公告)日:2002-03-14

    申请号:US09924898

    申请日:2001-08-07

    摘要: Provided is a method for preparing a true, homogeneous solution of a pharmaceutical substance dissolved in an organic solvent in which the pharmaceutical substance is not normally soluble. Solubilization is obtained by forming a hydrophobic ion pair complex involving the pharmaceutical substance and an amphiphilic material. The resulting organic solution may be further processed to prepare pharmaceutical powders. A biodegradable polymer may be co-dissolved with the pharmaceutical substance and the amphiphilic material and may be incorporated into a pharmaceutical powder. A preferred method for preparing pharmaceutical powders is to subject the organic solution to gas antisolvent precipitation using a supercritical gas antisolvent such as carbon dioxide. Also provided is a method for making hollow particles having a fiber-like shape which would provide enhanced retention time in the stomach if ingested by a human or animal host. Further provided are novel biocompatible cationic surfactants and uses therefor, including the delivery, in vitro and in vivo, of nucleic acids into cells to transform the cells.

    摘要翻译: 提供了制备溶解在药物通常不溶于其中的有机溶剂中的药物的真实均匀溶液的方法。 通过形成涉及药物物质和两亲性物质的疏水性离子对络合物来获得溶解。 所得到的有机溶液可以进一步加工以制备药物粉末。 可生物降解的聚合物可以与药物物质和两亲物质共溶,并且可以并入药物粉末中。 用于制备药物粉末的优选方法是使用超临界气体反溶剂如二氧化碳对有机溶液进行气体反溶剂沉淀。 还提供了一种制备具有纤维状形状的中空颗粒的方法,其将在人或动物宿主摄入时提供增强的胃中的停留时间。 还提供了新颖的生物相容性阳离子表面活性剂及其用途,包括将细胞在体外和体内递送到细胞中以转化细胞。