Novel raloxifene acid additon salts and/or solvates thereof, improved method for purification of said raloxifene acid addition salts and/or solvates thereof and pharmaceutical compositions comprising these
申请人:Karup Leo Gunnar
公开号:US20060154966A1
公开(公告)日:2006-07-13
Raloxifene acid addition salts or solvates thereof, having improved dissolution properties in media comprising hydrochloric acid are described, compared with similar preparations based on raloxifene or raloxifene hydrochloride. The disclosed acid addition salts or solvates thereof show an improved bioavailability in media comprising hydrochloric acid, such as the gastric juice. The acid addition salts or solvates thereof are addition salts or solvates of raloxifene and a pharmaceutical acceptable acid selected among succinic acid, lactic acid, malonic acid or sulphuric acid. Further, crystalline forms of the raloxifene salts and solvates thereof are disclosed. The raloxifene acid addition salts and/or solvates thereof are useful for the preparation of pharmaceutical composition for oral administration capable of fast and reliable release of the active ingredients in the stomach of the patient, in particular for the treatment of cancer or osteoporosis, or for inhibiting cartilage degradation. A new method for preparation of raloxifene lactate is also disclosed.
与基于雷洛昔芬或盐酸雷洛昔芬的类似制剂相比,雷洛昔芬酸加成盐或其溶解物在含有盐酸的介质中具有更好的溶解特性。所公开的酸加成盐或其溶解物在含有盐酸的介质(如胃液)中显示出更好的生物利用度。其酸加成盐或溶解物是雷洛昔芬和选自琥珀酸、乳酸、丙二酸或硫酸的药物可接受酸的加成盐或溶解物。此外,还公开了雷洛昔芬盐及其溶液的结晶形式。雷洛昔芬酸加成盐和/或其溶解物可用于制备口服药物组合物,能够在患者胃中快速、可靠地释放活性成分,特别是用于治疗癌症或骨质疏松症,或用于抑制软骨降解。此外,还公开了一种制备乳酸雷洛昔芬的新方法。