[EN] POLY(KETALS) AND RELATED COMPOSITIONS AND METHODS<br/>[FR] POLYCÉTALS ET COMPOSITIONS ET PROCÉDÉS ASSOCIÉS
申请人:CHILDREN'S MEDICAL CENTER CORP
公开号:WO2017189953A1
公开(公告)日:2017-11-02
Compositions comprising polymers comprising one or more ketal, monothioketal, and/or thioketal bonds are provided, as well as related methods and kits. In some embodiments, a polymer may comprise one or more repeat units comprising one or more ketal, monothioketal, and/or thioketal bonds and a precursor of a pharmaceutically active agent. The precursor of the pharmaceutically active agent may be located in the backbone or may be a pendant group. The polymer may degrade in certain environments (e.g., aqueous environments, acidic environments, in vivo, etc.) to produce the pharmaceutically active agent and other biocompatible degradation products, such as certain ketones, alcohols, and/or thiols. Regardless of the location of the precursor of the pharmaceutically active agent in the repeat unit(s), the polymer may have a prolonged degradation time and/or release of the pharmaceutically active agent in certain environments. Various compositions, described herein, may be particularly well suited for applications requiring extended release of pharmaceutically active agents, such as the treatment of ophthalmic disorders.
提供了包含聚合物的组合物,其中聚合物包含一个或多个缩醛基、单硫缩醛基和/或硫缩醛基的键,以及相关方法和试剂盒。在某些实施例中,聚合物可以包含一个或多个重复单元,其中包含一个或多个缩醛基、单硫缩醛基和/或硫缩醛基的键以及药用活性剂的前体。药用活性剂的前体可以位于骨架中或可以是一个挂链基团。聚合物可以在某些环境中降解(例如水性环境、酸性环境、体内等),以产生药用活性剂和其他生物相容性降解产物,例如某些酮类、醇类和/或硫醇。无论药用活性剂的前体在重复单元中的位置如何,聚合物在某些环境中可能具有较长的降解时间和/或释放药用活性剂。本文描述的各种组合物可能特别适用于需要延长释放药用活性剂的应用,例如治疗眼科疾病。