Blend, cross-linkable poly(propylene fumarate) for immobilization and controlled drug delivery
    1.
    发明授权
    Blend, cross-linkable poly(propylene fumarate) for immobilization and controlled drug delivery 有权
    用于固定和控制药物递送的共混物,可交联的聚(富马酸丙烯酯)

    公开(公告)号:US06884432B2

    公开(公告)日:2005-04-26

    申请号:US10423209

    申请日:2003-04-25

    摘要: Microspheres for controlled release of a bioactive agent are disclosed, and in particular, blend, cross-linkable poly(propylene fumarate) for immobilization and controlled drug delivery. The microsphere includes poly(propylene fumarate), a polymeric material other than poly(propylene fumarate) (e.g., poly(lactic-co-glycolic acid)), and a bioactive agent. The bioactive agent is selected depending on the physiological effect desired. For example, in bone regeneration applications, the bioactive agent may be selected from osteoinductive agents, peptides, growth hormones, osteoconductive agents, cytokines and mixtures thereof. The bioactive agent is dispersed in the microsphere, the microsphere has a diameter in the range of 1 to 300 micrometers, the poly(propylene fumarate) and poly(lactic-co-glycolic acid) are distributed in the microsphere, and the microsphere releases the bioactive agent in a sustained manner after an initial burst release. The microspheres may be covalently attached to a poly(propylene fumarate) scaffold for tissue regeneration applications in which the bioactive agent is released from the scaffold.

    摘要翻译: 公开了用于控制释放生物活性剂的微球,并且特别地,用于固定和控制药物递送的共混物,可交联聚(富马酸丙烯酯)。 微球包括聚(丙烯富马酸盐),聚(丙烯富马酸酯)以外的聚合物(例如聚(乳酸 - 共 - 乙醇酸))和生物活性剂。 取决于所需的生理效果来选择生物活性剂。 例如,在骨再生应用中,生物活性剂可以选自骨诱导剂,肽,生长激素,骨诱导剂,细胞因子及其混合物。 生物活性剂分散在微球中,微球的直径范围为1〜300微米,聚(丙烯富马酸)和聚(乳酸 - 共 - 乙醇酸)分布在微球中,微球释放出 初始爆发后持续的生物活性剂。 微球可以共价连接到用于组织再生应用的聚(丙烯富马酸酯)支架中,其中生物活性剂从支架中释放。