Oxygen-reduced aqueous solution of factor viii

Details Oxygen-reduced aqueous solution of factor viii Oxygen-reduced aqueous solution of factor viii

A - Human Necessities

61

K

A61K 38/37 (2006.01) A61P 7/04 (2006.01)

Patent

CA 2161350

The present invention relates to a final drug product comprising coagulation factor VIII in an aqueous solution with a reduced concentration of oxygen. In this way, the factor VIII activity can be retained during storage to a surprisingly high degree. The factor VIII activity can be retained for a prolonged period of time, if the final drug product further comprises an inert gas and/or an antioxidant. The present invention also relates to processes for reducing the oxygen concentration of the aqueous solution, and a method for improving the stability of factor VIII in an aqueous solution by storing the solution under an inert gas atmosphere. By the present invention it is possible to retain at least 50 % of the initial activity of factor VIII after storage for at least 6 months at a temperature of 2 to 10 °C and a pH of the solution of 6.5 to 8.5.

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