The methods disclosed herein are of use for the production of controlled release compositions. In particular, the methods provide the contacting of an organic phase containing a bioactive agent and a polymer with an aqueous phase containing an organic ion to create controlled release compositions containing bioactive agents. The present invention also includes controlled release compositions including a polymer, an organic ion and a bioactive agent. The present invention also includes methods of using such controlled release compositions. The usefulness of the present invention is that the methods result in the production of controlled release compositions containing bioactive agent capable of administration in a concentrated low-dose form, having low burst and reduced production of degraded bioactive agent.
本文所披露的方法可用于生产受控释放组合物。特别是,该方法提供了将含有
生物活性剂和聚合物的有机相与含有有机离子的
水相接触以创建含有
生物活性剂的受控释放组合物的方法。本发明还包括含有聚合物、有机离子和
生物活性剂的受控释放组合物。本发明还包括使用这种受控释放组合物的方法。本发明的有用性在于,该方法可产生含有
生物活性剂的受控释放组合物,能够以浓缩低剂量形式给药,具有低爆发和降低
生物活性剂降解产物的生产。