Abstract
In response to the FDA's call for applying Quality by Design (QbD) to the manufacturing process, the biopharmaceutical industry has invested extensively into the monitoring and controlling of product quality attributes for bioprocesses. To assure the safety and efficacy of the drug product, defining critical quality attributes (CQA) and understanding their correlation with critical process parameters (CPP) becomes vitally important. In this work, a liquid chromatography-mass spectrometry based multi-attribute method (MAM) has been applied to the monitoring and trending of multiple CQAs of a monoclonal antibody product. To the best of our knowledge, this is the first demonstration of applying MAM to both a 3-liter development mini-bioreactor (3 L bioreactor) and a 2000-liter GMP single use bioreactor (2000L SUB). MAM was proven not only to be a great analytical tool for monitoring product quality attributes throughout the time course of the cell culture process, it could also provide critical product quality information in order to understand any potential process performance differences during scale-up and/or technology transfer. The successful monitoring and trending of the multiple CQAs throughout the 17-day cell culture process lays a solid foundation for possible real time in-process control and release of biotherapeutics using MAM in the future.
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