I'd like to ask a quick cGMP question: can a cGMP Protocol and Report use pre-existing data obtained using qualified instrumentation and documented in a laboratory notebook, or must such data be regenerated/repeated after the protocol is signed?

Our GLP person has told us that for GLP, that data must be generated after the protocol is official, and were wondering if cGMP just requires data to be obtained correctly and documented, regardless of the date the data was obtained.

Thank you. Please list a direct source for such should that be permitted under cGMP.