Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8369107 | Biologicals | 2018 | 7 Pages |
Abstract
There is a continuous need to improve the viral safety of plasma products, and we here report the development and optimization of a manufacturing-scale virus removal nanofiltration step for intravenous immunoglobulin (IVIG) using the recently introduced Planova⢠BioEX filter. IVIG throughput was examined for various operating parameters: transmembrane pressure, temperature, protein concentration, and prefiltration methods. The developed procedure was based on filtering undiluted process solution (50.0â¯g/l IVIG) under constant transmembrane pressure filtration at 294â¯kPa and 25â¯Â°C following prefiltration with a 0.1â¯Î¼m MILLEX VV filter. The recovery of IgG was approximately 98%, and no substantial changes in biochemical characteristics were observed before and after nanofiltration in scaled-up production. A viral clearance validation study with parvovirus under worst-case conditions performed at the National Institutes for Food and Drug Control of China (NIFDC) showed PPV logarithmic reduction value (LRV)â¯>â¯4. Improved viral safety of IVIG can be assured by implementing a Planova BioEX nanofiltration step to ensure effective parvovirus clearance under conditions providing excellent protein recovery and no detectable impact on product biochemical properties. This plasma-derived IVIG product is the first to be certified for parvovirus safety by the NIFDC in China.
Keywords
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Authors
Shan Ma, Guang Li Pang, Yu Juan Shao, Tomoko Hongo-Hirasaki, Meng Xian Shang, Marcus Inouye, Chang Yong Jian, Meng Zhao Zhu, Hu Hu Yang, Jian Feng Gao, Zhi Ying Xi, Dian Wei Song,