Regardless of completion, what must be done with clinical trial reports?

• A. Reports are optional after completion.
• B. Reports must be prepared and provided to regulatory agencies; abbreviated reports may be acceptable in certain cases.
• C. Reports are unnecessary for marketing applications.
• D. Reports must be kept internal and not submitted to regulators.

Answer: (B)

Regardless of completion, reports must be prepared and provided to regulatory agencies. In ICH GCP, the sponsor or sponsor-investigator prepares a comprehensive Clinical Study Report (CSR) that documents the study design, methods, participants, results, and interpretation. This report is the formal document regulators rely on to assess safety and efficacy and to support marketing authorization. While full CSRs are standard, some regulators or circumstances may allow an abbreviated version if it still meets required content. The essential point is that reporting to regulators is required, not optional or for internal use only, and these reports are needed for marketing applications as part of the regulatory submission.