The present application is directed to biodegradable polymers, compositions, including microspheres and nanospheres, formed of such polymers, and methods of using such polymers and compositions. In certain embodiments, the subject polymer compositions include therapeutic agents, optionally providing sustained release of the encapsulated agent after administration to a patient.
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生物降解的聚合物、由此类聚合物形成的组合物,包括微球和纳米球,以及使用此类聚合物和组合物的方法。在某些实施例中,所述聚合物组合物包括治疗剂,可选择性地在给患者施用后提供包埋剂的持续释放。