Doubly virus-inactivated human blood plasma, blood plasma...

A - Human Necessities – 61 – K

Patent

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Details

A61K 35/16 (2006.01) A61L 2/00 (2006.01) A61L 2/04 (2006.01) A61L 2/18 (2006.01) C12N 7/04 (2006.01)

Patent

CA 2228031

The invention concerns a method of producing a virally safe therapeutic biological preparation from human plasma using a detergent and retaining at least 50 % of the biological activity, the detergent being removed at the end of the method. Non-ionic surfactants, whose molecular structure comprises a hydrophobic part consisting of a linear aliphatic chain of between 8 and 10 carbon atoms, are used as detergents. The detergent treatment can be followed by a heat treatment, optionally using conventional stabilizers.

L'invention concerne un procédé permettant d'obtenir une préparation biologique, thérapeutique, fiable sur le plan viral, à partir de plasma humain, à l'aide d'un détergent, 50 % au moins de l'activité biologique étant maintenus, procédé à la fin duquel le détergent est enlevé. Les détergents utilisés sont des tensioactifs non ioniques dont la structure moléculaire comporte une partie hydrophobe composée d'une chaîne aliphatique linéaire ayant entre 8 et 10 atomes de C. Le traitement à l'aide du détergent peut être suivi d'un traitement thermique, éventuellement à l'aide de stabilisants classiques.

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