Where and What to Test: From Purified Bulk Drug Substance to Sterile Liquid Final Drug Product

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Overview:

This white paper focuses on what many consider the most critical part of a biological drug product’s manufacturing life cycle: going from the purified bulk drug substance (“PBDS”) to the sterile final drug product (“FDP”). Specifically, the white paper discusses establishing the testing “where and when” (and in some instances the “why”) for manufacturing formulation and fill/finish activities and how the approach is also applicable, for the most part, to small molecule drug products formulation and fill/finish.