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    • 6. 发明申请
    • GRANULATE CONTAINING A PHARMACEUTICALLY ACTIVE SUBSTANCE AND METHOD FOR ITS MANUFACTURE
    • 含有药物活性物质的颗粒及其制造方法
    • WO2008033023A2
    • 2008-03-20
    • PCT/NL2007/050448
    • 2007-09-14
    • FEYECON DEVELOPMENT & IMPLEMENTATION B.V.PELLIKAAN, Hubert ClemensVERMEULEN, Pieter SebastiaanBENDER, Johannes Caspar Mathias ElizabethFERNANDEZ CID, Maria, Vanesa
    • PELLIKAAN, Hubert ClemensVERMEULEN, Pieter SebastiaanBENDER, Johannes Caspar Mathias ElizabethFERNANDEZ CID, Maria, Vanesa
    • A61K9/2059A61K9/1617A61K9/1623A61K9/1694A61K9/2013A61K9/2018
    • One aspect of the present invention relates to a granulate having a volume weighted mean diameter of 1-200 m and containing: at least 0.1 wt.% of a pharmaceutically active substance; at least 10 wt.% of emulsifier selected from the group consisting of sugar fatty acid esters, mono-glycerides, di-glycerides, diacetyl tartaric acid ester of monoglyceride, diacetyl tartaric acid esters of diglyceride, polyglycerol esters, calcium stearoyl lactylate, sodium stearoyl lactylate and combinations thereof; and 0-89.9 wt.% of a water-dispersible saccharide; the combination of the pharmaceutically active substance, the emulsifier and the water-dispersible saccharide together represening at least 60 wt.% of the granulate; wherein the granulate is monophasic or wherein the granulate comprises a dispersed phase containing the pharmaceutically active substance, said dispersed phase having a volume weighted mean diameter of less than 300 nm. The granulates of the present invention enable the manufacture of transmucosal dosage units that exhibit improved solubility and/or bioavailability of the pharmaceutically active substance. Another aspect of the invention relates to a process for the preparation of a granulate containing a pharmaceutically active substance, which process employs: a pumpable emulsion comprising (i) a continuous phase containing a polar solvent and (ii) a dispersed phase containing an emulsifier and a pharmaceutically active substance; an extractant comprising a supercritical, subcritical or liquefied gas; said solvent being substantially more soluble in the extractant than said emulsifier; the process comprising the successive steps of : a. combining the pumpable emulsion with the extractant under mixing conditions; b. allowing the formation of granules containing the emulsifier and the pharmaceutically active substance; c. collect ing the granules and separating them from the extractant.
    • 本发明的一个方面涉及体积加权平均直径为1-200μm并含有至少0.1wt%的药物活性物质的颗粒; 至少10重量%的选自糖脂肪酸酯,单甘油酯,二甘油酯,甘油单酯的二乙酰酒石酸酯,甘油二酯的二乙酰酒石酸酯,聚甘油酯,硬脂酰乳酸钙,硬脂酰基硬脂酸钠 乳酸盐及其组合; 和0-89.9重量%的水分散性糖; 药物活性物质,乳化剂和水分散性糖的组合共同表示至少60重量%的颗粒; 其中所述颗粒是单相的或其中所述颗粒包含含有所述药物活性物质的分散相,所述分散相的体积加权平均直径小于300nm。 本发明的颗粒能够制造显示改善的药物活性物质的溶解度和/或生物利用度的经粘膜剂量单位。 本发明的另一方面涉及一种制备含有药物活性物质的颗粒的方法,该方法采用:可泵送乳液,其包含(i)含有极性溶剂的连续相和(ii)含有乳化剂的分散相和 药物活性物质; 包括超临界,亚临界或液化气体的萃取剂; 所述溶剂比所述乳化剂在萃取剂中更可溶; 该过程包括以下连续步骤:a。 将可泵送乳液与萃取剂在混合条件下结合; 湾 允许形成含有乳化剂和药物活性物质的颗粒; C。 收集颗粒并将其与萃取剂分离。