Which statement best describes the close-out documentation requirements?

• A. All activities required for trial close-out must be completed and copies of essential documents held in appropriate files
• B. Only regulatory documents need filing
• C. Documentation is optional after the trial ends
• D. Only sponsor keeps documents

Answer: (A)

Close-out documentation requirements focus on finishing every required close-out activity and keeping copies of essential documents in proper files. This matters because essential documents are the records that let you demonstrate how the trial was conducted and that the data are trustworthy. They must be retained and accessible for the regulatory-required period so regulators and audit teams can review the study if needed. If you only file regulatory documents or leave documentation with only one party, critical evidence of the trial conduct could be lost or hard to access, which doesn’t meet GCP standards. Documentation isn’t optional after the trial ends; it must be preserved to support compliance and subject protection.