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AssigneeShin-Etsu Chemical Co., Ltd.
InventorsShogo WARASHINA, Fumie KUSAKI, Kazuki KIKUCHI, Sakae OBARA, Naosuke MARUYAMA
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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 and a mole ratio of an acetyl group to a succinyl group of less than 1.6. Further, provided is a method for producing a hot melt extrudate including the step of hot melt-extruding a composition for hot melt extrusion including a drug and hypromellose acetate succinate having a molar hydroxypropoxy substitution of 0.40 or more and a mole ratio of an acetyl group to a succinyl group of less than 1.6, at a hot melt temperature of not lower than a melting temperature of the hypromellose acetate succinate or of not lower than a temperature at which both the hypromellose acetate succinate and the drug are melted.
A composition for hot melt extrusion comprising a drug and hypromellose acetate succinate having a hydroxypropoxy molar substitution of 0.40 or more and a mole ratio of an acetyl group to a succinyl group of less than 1.6.
A method for producing a hot melt extrudate comprising the 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 or more and a mole ratio of an acetyl group to a succinyl group of less than 1.6, at a hot melt temperature of not lower than a melting temperature of the hypromellose acetate succinate or of not lower than a temperature at which both the hypromellose acetate succinate and the drug are melted.
Dependencies are inferred from the claim text.