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EC Clinical Trials · EU-wide · 21 Sep 2025 · Guidance

Key guidance documents for the Clinical Trials Regulation

Dates and deadlines
Applies from
31 Jan 2022

Clinical trials are scientifically controlled studies undertaken in humans to establish or confirm the safety and effectiveness of investigational medicinal products (IMPs). Clinical trials in the EU are governed by theClinical Trials Regulation, which became effective on 31 January 2022.