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    • 4. 发明申请
    • MEDICAL DEVICES COATED WITH DRUG CARRIER MACROMOLECULES
    • 用药物载体大分子包裹的医疗装置
    • WO2007136516A3
    • 2008-12-11
    • PCT/US2007010646
    • 2007-05-02
    • BOSTON SCIENT SCIMED INCDAVIS LIZA JROBERTSON KIMTOOLEY RICHARD C JR
    • DAVIS LIZA JROBERTSON KIMTOOLEY RICHARD C JR
    • A61L27/54A61L27/34
    • A61L31/16A61L27/227A61L27/34A61L27/54A61L31/04A61L31/10A61L2300/602
    • A medical device coated with carrier macromolecules, wherein the carrier macromolecules are conjugated with a therapeutic agent. The carrier macromolecules may be antibodies which bind the therapeutic agent at the antigen binding site or by covalent bonding. The carrier macromolecules may be tethered to the surface of or dispersed within a coating on the medical device. The carrier macromolecules may release the therapeutic agent upon exposure to a trigger, which may be exposure to an aqueous environment, or a change in the pH or the ionic strength of the environment. The carrier macromolecules may also be bispecific antibodies directed to both a therapeutic agent and a target antigen. In some cases, binding of the target antigen causes the therapeutic agent to be released from the bispecific antibody. Also provided are methods of controlling the release and targeting of therapeutic agents eluted from a medical device.
    • 涂有载体大分子的医疗装置,其中载体大分子与治疗剂缀合。 载体大分子可以是在抗原结合位点或通过共价键结合治疗剂的抗体。 载体大分子可以束缚在医疗装置上的涂层的表面或分散在其中。 载体大分子可能在暴露于可能暴露于水性环境的触发剂或环境的pH或离子强度的变化时释放治疗剂。 载体大分子也可以是针对治疗剂和靶抗原的双特异性抗体。 在一些情况下,靶抗原的结合导致治疗剂从双特异性抗体释放。 还提供了控制从医疗装置洗脱的治疗剂的释放和靶向的方法。