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JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
Removal/neutralization of hepatitis A virus during manufacture of high purity, solvent/detergent factor VIII concentrate.
Journal of Medical Virology 1994 May
Recent reports have suggested an increased risk of type A viral hepatitis in hemophilic patients treated with high purity factor VIII concentrates prepared using ion exchange chromatography coupled with solvent/detergent treatment for inactivation of viruses. To determine the capacity for removal or inactivation of hepatitis A virus during the factor VIII manufacturing process, human plasma and various factor VIII production intermediates were spiked with cell culture-propagated virus and subjected to scaled down conditions mimicking the manufacture of solvent/detergent factor VIII. The combination of antibody-mediated neutralization, cryoprecipitation, anion exchange chromatography, and lyophilization in the absence of sucrose resulted in a minimal reduction of 5.5 to 8.55 log10 in the infectivity of hepatitis A virus.
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