FINE GRAIN CARRIERS AND MEDICINAL COMPOSITION PREPARED WITH THE USE OF THE SAME
    2.
    发明公开
    FINE GRAIN CARRIERS AND MEDICINAL COMPOSITION PREPARED WITH THE USE OF THE SAME 失效
    FEINKÖRNIGERTRÄGERMATERIALUND DAMIT HERGESTELLTEN PHAMAZEUTISCHEN ZUSAMMENSETZUNGEN

    公开(公告)号:EP0893125A1

    公开(公告)日:1999-01-27

    申请号:EP97904584.6

    申请日:1997-02-20

    IPC分类号: A61K47/30

    CPC分类号: A61K47/32 A61K9/1635

    摘要: The present invention is directed to particulate carriers useful as drug carriers in a drug delivery system (DDS) and to pharmaceutical compositions making use of such carriers. The invention is characterized by the use, as the particulate carrier, of: graft copolymer (A) whose graft chain is poly N-alkylacrylamide chain, poly N-alkylmethacrylamide chain, etc.; and a composition containing a combination of the graft copolymer (A) and at least one graft copolymer selected from the group consisting of graft copolymers (B-1) having polyacrylic acid or polymethacrylic acid as the graft chain and graft copolymers (B-2) having a polyvinyl amine compound as the graft chain.

    摘要翻译: 本发明涉及用作药物递送系统(DDS)中的药物载体的颗粒载体和利用这种载体的药物组合物。 本发明的特征在于使用接枝共聚物(A)作为颗粒载体,其接枝链是聚N-烷基丙烯酰胺链,聚N-烷基甲基丙烯酰胺链等; 和含有接枝共聚物(A)和至少一种选自具有聚丙烯酸或聚甲基丙烯酸作为接枝链的接枝共聚物(B-1)和接枝共聚物(B-2)的组合的组合物, 具有聚乙烯胺化合物作为接枝链。

    LIPOSOME WITH INCREASED RETENTION VOLUME
    7.
    发明公开
    LIPOSOME WITH INCREASED RETENTION VOLUME 失效
    LIPOSOM MITERHÖHTEMRETENTIONSVOLUMEN

    公开(公告)号:EP0804925A1

    公开(公告)日:1997-11-05

    申请号:EP95913349.7

    申请日:1995-03-27

    IPC分类号: A61K9/127 A61K47/24 B01J13/02

    CPC分类号: A61K9/127

    摘要: The present invention provides liposome preparations capable of efficiently holding water soluble substance particularly non-electrolytic water soluble substances.
    Liposomes and suspensions thereof comprising multilamellar liposomes characterized in that the liposome membrane is formed from a neutral phospholipid comprising a substantially saturated fatty acid residue a charged phospholipid comprising a substantially saturated fatty acid residue, ratio of said neutral phospholipid and charged phospholipid is 200:1 to 3:1, weighted average particle size of the liposome is 50 nm to 3,000 nm, and an encapsulation capacity of the liposome (internal aqueous phase (volume)/lipids (weight)) is at least 5 mℓ/g.
    The present liposome preparation can encapsulate an aqueous solution of a non-electrolytic water soluble substances with an encapsulation capacity (internal aqueous phase/lipids) of at least 5 mℓ/g.

    摘要翻译: 本发明提供能够有效保持水溶性物质,特别是非电解水溶性物质的脂质体制剂。 包含多层脂质体的脂质体和悬浮液的特征在于脂质体膜由包含基本上饱和的脂肪酸残基的中性磷脂形成,包含基本上饱和的脂肪酸残基的带电磷脂,所述中性磷脂和带电磷脂的比例为200:1至 如图3:1所示,脂质体的加权平均粒径为50nm〜3000nm,脂质体(内部水相(体积)/脂质(重量))的包封容量为5ml / g以上。 本脂质体制剂可以包封具有至少5m l / g的包封能力(内部水相/脂质)的非电解水溶性物质的水溶液。