PROCESS FOR OBTAINING A CONCENTRATE OF VON WILLEBRAND FACTOROR A COMPLEX OF FACTOR VIII/VON WILLEBRAND FACTOR AND USE OF THE SAME

摘要

Process for the preparation of a concentrate of Von Willebrand Factor or a complex of Factor VIII/Von Willebrand Factor and use of the same. The process is characterised by the preparation of a solution of Von Willebrand Factor or a complex of Factor VIII/Von Willebrand Factor which contains VWF and a concentration of up to 12 IU VWF:RCo/ml and a Von Willebrand Factor/Factor VIII ratio of 0.4 or more; and then proceeding with nanofiltration of the solution prepared in a) through a filter having a pore size of less than 35 nanometres.