How should study reports be prepared in relation to guidelines?

• A. They should be prepared solely for internal review.
• B. They should be prepared in a manner consistent with the trial sponsor's internal format.
• C. They should be adequately documented following guidelines from other ICH guidelines.
• D. They are not required for trials that enroll a small number of subjects.

Answer: (C)

Study reports should be adequately documented in line with established ICH guidelines to ensure completeness, consistency, and regulatory readiness. ICH guidelines specify the expected structure and content of clinical study reports, including how the design, methods, statistical analyses, results, and safety data are described. Aligning reporting with these guidelines from other ICH documents helps ensure data integrity, transparency, and interpretability for regulators and sponsors alike. Relying only on an internal review process or an internal sponsor format can miss required elements and reduce standardization, and reporting requirements apply regardless of trial size. So, the best practice is to document study reports following relevant ICH guidelines.