
Developments in Continuing Process Verification
The key to developing a practical approach to all phases lies in the establishment of Critical Quality Attributes (CQA) for the drug product and assignment and monitoring of Critical Process Parameters (CPP) that have a direct effect on the performance of the process with regard to the CQA. At the PDA Annual Meeting last week, Scott Bazzone, Senior Manager of Quality Assurance Validation at Pfizer presented the approach that is used there with regards to establishing the risk significance or Z Score of a CPP to the CQA.