Abstract
The complexity of biopharmaceuticals can present significant challenges to establishing potency. In this chapter, the three types of functional activity assays for measuring potency of biopharmaceuticals will be examined: bioassay, surrogate assay, and assay matrix. In addition, it will be shown that the development, optimization, and validation of these potency assays can be implemented by a risk-based approach during clinical development. Finally, it will be stressed that most manufacturers underestimate the amount of resources and time needed to properly implement these potency assays for recombinant proteins, monoclonal antibodies, genetically engineered viruses and cells.
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Geigert, J. (2019). Priceless Potency (Therapeutic Activity). In: The Challenge of CMC Regulatory Compliance for Biopharmaceuticals . Springer, Cham. https://doi.org/10.1007/978-3-030-13754-0_10
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DOI: https://doi.org/10.1007/978-3-030-13754-0_10
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