Storage-stable, functionally intact fibrinogen

A - Human Necessities – 61 – K

Patent

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A61K 9/00 (2006.01) C07K 14/75 (2006.01)

Patent

CA 2728358

Disclosed is a method for producing a fibrinogen solution from an aqueous solution that contains functionally intact fibrinogen and is contaminated with profibrin and/or fibrin monomers and/or fibrin monomer complexes and/or fibrin cleavage products. Said method is characterized in that the impurities are precipitated using a non-denaturing precipitating agent at a temperature ranging from -4° to +4° C and a Ca ion activity which does not exceed that of a 1,000 µM CaCl2 solution and are separated from the solution by means of a filtering or centrifugation process.

L'invention concerne un procédé pour produire une solution de fibrinogène à partir d'une solution aqueuse qui contient du fibrinogène fonctionnellement intact, ainsi que des impuretés sous forme de profibrine, de monomères de fibrine, de complexes de monomères de fibrine et/ou de produits de dégradation de la fibrine. Le procédé selon l'invention est caractérisé en ce que les impuretés sont précipitées à l'aide d'un agent précipitant non dénaturant à une température comprise entre -4°C et +4°C et avec une activité des ions calcium qui n'est pas supérieure à celle d'une solution de 1.000 µM de CaCl2, et en ce qu'elles sont séparées de la solution par filtration ou centrifugation.

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