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Process for producing dry, amorphous products comprising biological active materials by means of convection drying technique, especially spray drying
Process for producing dry, amorphous products comprising biological active materials by means of convection drying technique, especially spray drying
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机译:通过对流干燥技术,特别是喷雾干燥,生产包含生物活性物质的干燥,无定形产品的方法
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摘要
A solution or suspension containing a biologically active material and a stabilizer comprising a zwitterion and optionally a carbohydrate is dried by convection drying under controlled conditions to give an amorphous product with improved stability. Production of a dry, amorphous product comprises: (i) preparing a solution or suspension of a biologically active material, especially a therapeutically active material, and a stabilizer comprising; (a) a mixture of a carbohydrate and at least 1 zwitterion having polar or apolar groups or one of its derivatives; and/or (b) at least 2 zwitterions having polar or apolar groups or one of their derivatives; and/or (c) (a salt of) 1 or more zwitterions having polar or apolar groups or (of) their derivatives; and (ii) drying the solution or suspension by convection drying at a relative humidity below 70% in the stationary phase at an inlet temperature of below 300 degrees C. An Independent claim is also included for amorphous or partly amorphous products containing a biologically active material and a stabilizer with a glass transition temperature of at least 20 degrees C and a residual moisture content of below 8% (g/g) obtained by the process.
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