4.5 Article

Scale-up for bulk production of vaccine against meningococcal disease

期刊

VACCINE
卷 25, 期 34, 页码 6399-6408

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ELSEVIER SCI LTD
DOI: 10.1016/j.vaccine.2007.06.008

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Neisseria meningitidis; bioreactor scale-up; vaccine process development

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At the Netherlands Vaccine Institute (NVI) a vaccine against Neisseria meningitidis serogroup B organisms based on different porA subtypes contained in outer membrane vesicles (OMVs) is in advanced stage of development and will be evaluated in clinical trial studies in the near future. In order to meet the expected demand for product, the current biopharmaceutical production process is being scaled-up. This study describes the scale-up approach for the upstream process and the resulting bioreactor design and operation strategy leading towards a feasible solution for bulk production of a vaccine against meningococcal disease. The technically realized 1.2 m3 bioreactor, equipped with a turbine impeller for gas dispersion, was complemented with an upward pumping impeller and a rotary plate foam breaker to contain foam inside the bioreactor. Aeration and ventilation in the culture broth were controlled by increasing the stirrer speed and gas flow rate simultaneously at increasing oxygen demand. The scale-up was successful and comparable growth curves and nutrient consumption profiles were reached on 0.06 and 1.2 m3. (c) 2007 Elsevier Ltd. All rights reserved.

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