Use of lipid solvents for viral inactivation in factor VIII concentrates.

Model virus inactivation studies with lipid solvents were carried our in antihemophilic factor concentrates. The procoagulant activity obtained was >or=80% recovery with 20% amyl acetate-0.1% deoxycholate. A concurrent reduction of four logs of virus titer was obtained for model viruses provided the viral mass contained significant amounts (>or=20%) of lipid. From this preliminary study it appears that further investigations in animal models may be warranted to demonstrate the inactivation of hepatitis B virus, non-A-non-B virus, and AIDS virus with 20% amyl acetate-0.1% deoxycholate in antihemophilic factor concentrates.