申请人:Pfizer Inc.
公开号:US20040076668A1
公开(公告)日:2004-04-22
The invention provides controlled release pharmaceutical formulations having a coated core with the core comprising a drug-containing composition and a water-swellable composition, each occupying essentially separate regions within the core. The drug-containing composition comprises a PDE4D inhibitor, or a pharmaceutically acceptable salt thereof, preferably (R)-2-[4-({[2-(benzo[1,3]dioxol-5-yloxy)-pyridine-3-carbonyl]-amino}-methyl)-3-fluoro-phenoxy]-propionic acid, or a pharmaceutically acceptable salt thereof, or 2-(4-fluorophenoxy)-N-[4-(
1
-hydroxy-1-methyl-ethyl)-benzyl]-nicotinamide, or a pharmaceutically acceptable salt thereof, and a drug-entraining agent. The coating around the core is water-permeable, water-insoluble, and has at least one delivery port therethrough. The invention further provides methods of reducing the nausea and emetic effects of PDE4D inhibitors, and controlled-release formulations having improved PDE4D inhibitor in vivo and in vitro profiles.
本发明提供了一种具有包被核心的控释制剂配方,该核心包括含药物组成和水肿性组成,每个组成在核心内占据基本分离的区域。含药物组成包括PDE4D抑制剂或其药学上可接受的盐,优选为(R)-2-[4-[(2-苯并1,3-二氧杂环-5-氧基)吡啶-3-羧酰基]氨基甲基]-3-氟苯氧丙酸或其药学上可接受的盐,或2-(4-氟苯氧基)-N-[4-(1-羟基-1-甲基乙基)-苄基]烟酰胺或其药学上可接受的盐,以及一种药物捕获剂。核心周围的涂层是水渗透性、水不溶性的,并具有至少一个递送口。本发明还提供了减少PDE4D抑制剂恶心和呕吐作用的方法以及具有改善PDE4D抑制剂体内和体外特性的控释制剂配方。