Trial Master File
The collection of essential documents that demonstrates the conduct of a clinical trial complies with GCP and applicable regulatory requirements.
Definition
The Trial Master File (TMF) is the structured collection of essential documents, protocol, investigator brochure, regulatory approvals, informed consent forms, monitoring reports, IRB/EC correspondence, drug/device accountability, deviation logs, audit reports, that allows an inspector to reconstruct the conduct of the trial and assess GCP compliance. ICH E6(R3) defines the essential-documents list. Most modern trials use an electronic TMF (eTMF) aligned to the DIA TMF Reference Model.What this means in practice
TMF inspection-readiness is a perennial weak spot in BIMO inspections. Regulators expect the TMF to be contemporaneous, complete, and reconstructable in real time, not assembled retroactively before an inspection.Examples
- During a regulatory inspection, an auditor requested specific informed consent forms and monitoring visit reports from the TMF to verify subject protection and data integrity.
- A research coordinator regularly uploads updated investigator brochures and IRB approval letters to the electronic TMF (eTMF) to maintain contemporaneous documentation.
- When a clinical trial concludes, the TMF serves as the comprehensive archive of all essential documents, ensuring the trial's history can be fully reconstructed for future reference or audits.
- •Treating TMF assembly as a closeout activity rather than a continuous trial-conduct discipline.
- •Relying on an eTMF system without governance, system features alone do not produce inspection readiness.
Frequently asked questions
Related terms
Grouped by themeEditor's picks
· Hand-selected related conceptsData integrity principles: Attributable, Legible, Contemporaneous, Original, Accurate (plus Complete, Consistent, Enduring, Available).
Structured paper or electronic forms used to capture protocol-required data for each enrolled subject.
International standard for the design, conduct, and reporting of clinical trials.
Voluntary, informed agreement to participate in research after disclosure of risks and benefits.
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Sources
3 sourcesSources support the definition or relevant regulatory context, not necessarily every claim on this page. Each is graded against our source-tier hierarchy so you can see what rests on binding law versus commentary.
- 1DIA TMF Reference ModelTier 4 VerifiedDIAtmfrefmodel.com
- 2ICH E6(R3) GCPTier 2 VerifiedICHich.org
- 3ClinicalTrials.govTier 3 VerifiedNIHclinicaltrials.gov
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