Final answer:
The GCP guidelines define essential documents for all phases of a clinical trial: before the trial starts, during the clinical trial, and after the clinical trial closes.
Step-by-step explanation:
The GCP (Good Clinical Practice) guidelines define essential documents for all phases of a clinical trial, which includes:
- Before the trial starts: During this phase, essential documents such as the protocol, investigator's brochure, and informed consent forms are developed and finalized.
- During the clinical trial: Essential documents include subject records, case report forms, and monitoring reports, among others. These documents are crucial for monitoring and ensuring the integrity of the trial.
- After the clinical trial closes: Essential documents in this phase include final study reports, audit reports, and regulatory submissions.
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