Establishes the scientific and risk-based framework for cleaning validation, including program scope, worst-case selection, equipment and product grouping, cleaning-process definition, hold-time studies, validation strategy, and lifecycle control of the validated cleaning process.
Cleaning validation provides documented evidence that an established cleaning process can consistently reduce product residues, cleaning-agent residues, and other relevant contaminants to predefined acceptable levels. A defensible program does not begin with swabbing equipment after cleaning. It begins with understanding…
Cleaning validation does not require every product-equipment combination to be validated independently when scientifically justified grouping demonstrates that selected representatives adequately challenge the broader manufacturing scope. The validity of that strategy depends on how those representatives are chosen. Worst-case selection…
Cleaning validation should define how long equipment may remain in a particular condition before that condition begins to challenge the assumptions supporting the validated cleaning process. Two time intervals are particularly important: dirty hold time, the permitted delay between completion…