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AssigneeShin-Etsu Chemical Co., Ltd.
InventorsShogo Warashina, Fumie Kusaki, Kazuki Kikuchi, Sakae Obara, Naosuke Maruyama
Estimating the term…
Provided are a composition for hot-melt extrusion which can be hot-melt extruded at a temperature lower than a conventional temperature and therefore free of heat-induced deactivation of a drug; and a method for producing a hot-melt extrusion product which is simpler than a spray-drying method. More specifically, provided is a composition for hot-melt extrusion including a drug and hypromellose acetate succinate (HPMCAS) having a hydroxypropoxy molar substitution of 0.40 or more. Also provided is a method for producing a hot-melt extrusion product including a step of hot-melt extruding a composition for hot-melt extrusion including a drug and hypromellose acetate succinate having a hydroxypropoxy molar substitution of 0.40 or more at a hot-melt temperature of melting temperature of the hypromellose acetate succinate or higher, or at a hot-melt temperature equal to or higher than a temperature at which both the hypromellose acetate succinate and the drug become melted.
A composition for hot-melt extrusion, comprising a drug and hypromellose acetate succinate having a hydroxypropoxy molar substitution of 0.40 to 1.00.
A method for producing a hot-melt extrusion product, comprising a step of hot-melt extruding a composition for hot-melt extrusion comprising a drug and hypromellose acetate succinate having a hydroxypropoxy molar substitution of 0.40 to 1.0 at a hot-melt temperature of melting temperature of the hypromellose acetate succinate or higher, or at a hot-melt temperature equal to or higher than a temperature at which both the hypromellose acetate succinate and the drug become melted.
Dependencies are inferred from the claim text.