LIPOSOMES WITH IMPROVED DRUG RETENTION FOR TREATMENT OF CANCER
    6.
    发明申请
    LIPOSOMES WITH IMPROVED DRUG RETENTION FOR TREATMENT OF CANCER 有权
    具有改善药物治疗癌症的药物

    公开(公告)号:US20110262524A1

    公开(公告)日:2011-10-27

    申请号:US11576595

    申请日:2005-10-06

    摘要: The present invention relates to the use of copper ions to achieve enhanced retention of a therapeutic agent within a liposome. The invention may be employed to more effectively deliver a liposomally encapsulated therapeutic agent to a target site in vitro and in vivo for anti-cancer or other therapy. The liposome may comprise an interior buffer solution containing the therapeutic agent, the solution having a pH less than 6.5 and most preferably approximating pH 3.5. At least some of the copper ions are retained within the interior solution. In a particular embodiment the therapeutic agent may be a chemotherapeutic drug, such as irinotecan. The invention may also comprise an ionophore to facilitate loading of drug into the liposome. In one particular embodiment the combination of the ionophore A23187 and encapsulated divalent copper (Cu2+) resulted in an irinotecan formulation that exhibited surprisingly improved drug retention attributes.

    摘要翻译: 本发明涉及使用铜离子来实现治疗剂在脂质体内的保留。 本发明可用于在体外和体内更有效地将脂质体包封的治疗剂递送至靶位点用于抗癌或其它治疗。 脂质体可以包含含有治疗剂的内部缓冲溶液,该溶液的pH小于6.5,最优选接近pH 3.5。 至少一些铜离子保留在内部溶液中。 在一个具体实施方案中,治疗剂可以是化学治疗药物,例如伊立替康。 本发明还可以包含离子载体以便于将药物负载到脂质体中。 在一个具体实施方案中,离子载体A23187和包封的二价铜(Cu 2+)的组合导致伊立替康制剂显示惊人的改善的药物保留性质。

    Liposomal compositions for parenteral delivery of agents
    10.
    发明申请
    Liposomal compositions for parenteral delivery of agents 审中-公开
    用于胃肠外递送药剂的脂质体组合物

    公开(公告)号:US20090028931A1

    公开(公告)日:2009-01-29

    申请号:US11883255

    申请日:2006-01-30

    摘要: The invention provides methods and compositions for loading an agent, such as econazole, onto a liposome for parental delivery. The loading of the agent into a liposome comprises combining the agent with a micelle-forming compound to form a micelle including the agent, where the agent is releasable from the micelle-forming compound, and adding the micelle to the liposome, where the micelle combines with the liposome such that the agent is loaded into the liposome to form a loaded liposome. The methods are suitable for the loading of poorly soluble agents onto liposome.

    摘要翻译: 本发明提供了用于将药剂(例如益康唑)加载到用于亲代递送的脂质体上的方法和组合物。 将试剂加载到脂质体中包括将试剂与胶束形成化合物组合以形成包含试剂的胶束,其中试剂可从胶束形成化合物释放,并将胶束加入脂质体中,其中胶束结合 与脂质体一起使得试剂加载到脂质体中以形成负载的脂质体。 该方法适用于将难溶性物质加载到脂质体上。