Solid composition for controlled release of ionizable active agents with poor aqueous solubility at low pH and methods of use thereof

摘要

A novel solid composition and methods for making and using the solid composition are provided. The solid composition comprises: (a) at least one active agent with a solubility of less than about 0.3 mg/ml in an aqueous solution with a pH of at most about 6.8 at a temperature of about 37C; and (b) a hydrophilic polymer matrix composition comprising: i) a hydrophilic polymer selected from the group consisting of METHOCELTM, POLYOX WSR 1105 and combinations thereof; and optionally ii) a hydrophobic polymer selected from the group consisting of Ethocel 20 premium; and (c) an alkalizer selected from the group consisting of calcium carbonate, magnesium oxide heavy and sodium bicarbonate; wherein the composition provides at least about 70% release of the active between about 7 to about 12 hours following oral administration.