ICH E6(R3)
ICH E6(R3) Good Clinical Practice
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.
ICH E6(R3) is the current-generation Good Clinical Practice guideline, restructured around a set of overarching principles and a risk-proportionate, quality-by-design approach to trial conduct. It reframes GCP away from uniform, checklist compliance toward fitness-for-purpose: sponsors build quality into protocol design and focus oversight on the factors and data that matter to participant safety and result reliability. It explicitly accommodates modern trial designs, diverse data sources, and technology such as electronic systems and decentralized elements.
The (R3) revision separates enduring principles from an annex of detailed expectations, so the framework can adapt to evolving methods without rewriting the core. This is a deliberate contrast to E6(R2), which layered risk-based and quality-management concepts onto an older structure via addendum.
Practitioners should read E6(R3) alongside RBQM and quality-tolerance-limit concepts — the guideline operationalizes them rather than treating them as optional enhancements.
- —Principles-first structure with a supporting annex of expectations
- —Quality-by-design: build quality into the protocol, do not inspect it in afterward
- —Risk-proportionate monitoring and oversight, not uniform 100% source verification
- —Media-neutral: accommodates decentralized elements, e-source, and varied data origins
ICH E6(R3) Good Clinical Practice; supersedes ICH E6(R2).
Frequently asked questions
What does ICH E6(R3) stand for?
ICH E6(R3) stands for ICH E6(R3) Good Clinical Practice.
What is ICH E6(R3)?
ICH E6(R3) is the current-generation Good Clinical Practice guideline, restructured around a set of overarching principles and a risk-proportionate, quality-by-design approach to trial conduct. It reframes GCP away from uniform, checklist compliance toward fitness-for-purpose: sponsors build quality into protocol design and focus oversight on the factors and data that matter to participant safety and result reliability. It explicitly accommodates modern trial designs, diverse data sources, and technology such as electronic systems and decentralized elements.
Which regulations cover ICH E6(R3)?
ICH E6(R3) Good Clinical Practice; supersedes ICH E6(R2).