Heat treatment of lyophilized blood clotting factor VIII concent

Drug – bio-affecting and body treating compositions – Fermentate of unknown chemical structure – Having a known elemental analysis

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A61K 3516

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active

044565909

ABSTRACT:
A method for treating blood products to eliminate hepatitis virus present therein is disclosed. Blood products treated according to the method are first lyophilized and then subjected to heat for a period of time sufficient to inactivate the hepatitis virus. At the conclusion of the heating step the blood product can be reconstituted using sterile water or a like diluent. No adverse effects on blood product activity following treatment have been observed. The method has special applicability to blood plasma fractions such as Factor VIII, Factor IX and fibrinogen.

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