James D. Colandene, PhD, is manager, Biopharmaceutical Product Sciences, GlaxoSmithKline.
Stage 2 Process Validation: Regulatory Expectations and Approaches to Determine and Justify the Number of PPQ Batches
The authors summarize the current regulatory expectations regarding the number of PPQ batches required and provide potential approaches that can be used to determine and justify the number of PPQ batches.