申请人:PR Pharmaceuticals, Inc.
公开号:EP1829529A1
公开(公告)日:2007-09-05
The present invention provides improved sustained release formulations of estradiol metabolites, including 2-hydroxyestradiol, 2-methoxyestradiol, 4-hydroxyestradiol and 4-methoxyestradiol, useful for therapeutic treatments. The invention also provides methods of producing sustained release forms of estradiol metabolites. The compositions of the present invention include microparticles, nanoparticles, patches, crystals, gels, rods, stints, pellets, discs, lozenges, wafers, capsules, films, microcapsules, nanocapsules, hydrogels, liposomes, implants and vaginal rings. Compositions also include formulations for transdermal and intravenous delivery of estradiol metabolites. The present invention provides numerous improvements over previous forms of estradiol metabolites, such advantages including the sustained release of normally short half-life compounds to maintain therapeutic blood levels.
本发明提供了用于治疗的雌二醇代谢物(包括 2-羟基雌二醇、2-甲氧基雌二醇、4-羟基雌二醇和 4-甲氧基雌二醇)的改进型缓释制剂。本发明还提供了生产雌二醇代谢物缓释形式的方法。本发明的组合物包括微粒、纳米粒、贴片、晶体、凝胶、棒状、栓剂、颗粒、盘片、锭剂、晶片、胶囊、薄膜、微胶囊、纳米胶囊、水凝胶、脂质体、植入物和阴道环。组合物还包括用于经皮和静脉注射雌二醇代谢物的制剂。与以前的雌二醇代谢物形式相比,本发明有许多改进,这些优点包括持续释放通常半衰期较短的化合物,以维持治疗性血药浓度。