Essential Documents
What a definition is not
A definition is SPEQ’s plain-language decode of how a term is used in practice, cited to the documents that define it. It is a practitioner reference, not legal or regulatory advice, it does not replace the definition in the source, and where a regulator’s wording differs the regulator’s wording governs.
The documents that individually and collectively permit evaluation of the conduct of a trial and the quality of the data produced, filed in the Trial Master File before, during, and after a study. They demonstrate compliance with GCP and applicable regulatory requirements, and their completeness is a standing focus of sponsor and regulatory inspection.
ICH E6(R3) organizes essential documents into three phases of the trial lifecycle: documents that must exist before the trial commences (protocol, IB, ethics committee approval, insurance), documents generated during clinical conduct (signed consent forms, monitoring visit reports, CRFs), and documents assembled after trial completion (final report, subject identification code list, archiving certificate).
The essential documents together allow an independent auditor or inspector to reconstruct exactly how the trial was designed, approved, conducted, and closed out — without them, no amount of good clinical practice elsewhere in the trial can be verified after the fact.
They are filed in the sponsor’s Trial Master File and the site’s Investigator Site File, and the two must be reconcilable — a document present in one but missing from the other is a recurring inspection finding.
- —Organized into three lifecycle phases: before trial starts, during clinical conduct, and after trial completion/closure.
- —Collectively they allow an independent party to reconstruct how the trial was conducted and monitored.
- —Filed in the Trial Master File (sponsor) and Investigator Site File (site), which must be reconcilable.
- —Incomplete or poorly controlled essential documentation is one of the most frequent GCP inspection findings.
ICH E6(R3) GCP, Section 8 (Essential Documents for the Conduct of a Clinical Trial)
Frequently asked questions
What is Essential Documents?
The documents that individually and collectively permit evaluation of the conduct of a trial and the quality of the data produced, filed in the Trial Master File before, during, and after a study. They demonstrate compliance with GCP and applicable regulatory requirements, and their completeness is a standing focus of sponsor and regulatory inspection.
Which regulations cover Essential Documents?
ICH E6(R3) GCP, Section 8 (Essential Documents for the Conduct of a Clinical Trial)