GCP inspectors interview people as well as reviewing documents, and how your team answers can shape the outcome as much as the trial master file does. Good preparation helps people explain their roles and processes accurately, answer only the question asked, find supporting documents quickly and say "I don't know, but I can find out" when that's the truth. The goal is not rehearsed answers; it is clear, honest and confident explanation of how the study was actually run.
What do inspectors ask about?
Roles and responsibilities, how oversight of vendors was performed, how decisions were made and documented, how safety information was handled, how deviations and quality issues were identified and resolved, how training was delivered and how the sponsor knew the study was running as it should. They often ask people to walk through a process and then show the evidence.
Who should be prepared?
Anyone likely to be interviewed: the clinical operations lead, the medical monitor or medical lead, quality, data management, regulatory, safety and, where relevant, executives with oversight responsibility. In small companies, a few people may cover many roles and should be ready to speak to each of them.
How should you prepare?
Review the story of the study. Key decisions, issues and how they were handled.
Know your documents. Where key evidence lives and how to retrieve it quickly.
Understand your roles as defined in procedures, plans and contracts.
Practice with mock interviews, ideally led by someone with inspection experience.
Prepare for difficult topics, such as known issues, findings and late documentation.
Agree on logistics: who escorts inspectors, who retrieves documents and how requests are tracked.
What are the principles of a good interview answer?
Listen to the whole question. Answer what is asked, accurately and concisely. Use facts, not speculation. Refer to documents where possible. If you don't know, say so and offer to find out. If you made a mistake earlier, correct it. Don't volunteer opinions about colleagues or vendors. Stay calm and courteous, even when questions feel pointed.
What mistakes should people avoid?
Guessing. Over-explaining, which can open new lines of questioning. Contradicting documents without explanation. Claiming a process exists when it isn't documented. Blaming the CRO, which suggests weak sponsor oversight. And trying to answer questions that belong to someone else's role.
How should known issues be discussed?
Openly and factually, explaining what happened, how it was identified, the root cause, actions taken and evidence of effectiveness. Inspectors expect issues; how a sponsor found and handled them is what demonstrates control.
What happens after the interviews?
Debrief daily during the inspection to track questions, requests and any answers that need clarification. Correct inaccuracies promptly. Then prepare for the response to any findings, which should include strong root cause analysis and corrective actions rather than defensive explanations.
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