The changing regulatory environment is shaping a new paradigm between drug sponsors and contract manufacturing organizations (CMOs). One key aspect is demonstrated quite nicely in a case study from February 2012 (read it here), when the FDA issued a warning letter to a contract manufacturing organization. The warning letter stated in part:
“In your response, you state that you have informed your clients on the importance of validating the methods, but they have chosen not to validate the methods. In addition, you state that you will inform them again in writing. Your response, however, is inadequate because you do not provide your firm's planned corrective actions for this CGMP violation. You are responsible for ensuring that the test methods used by your firm are validated.” (Emphasis added)
Did you catch all of that?