# Clinical Trials Regulations enforcement provisions

Source: https://www.keypedia.com/records/uk_mhra_guidance/uk-mhra/8ec7e988-4f36-4a73-be79-35519a61fb37
Type: Guidance
Published: January 12, 2026
Updated: April 27, 2026

> The UK Medicines and Healthcare products Regulatory Agency (MHRA) has finalized guidance regarding the amended Clinical Trials Regulations, which became fully effective on April 28, 2026. This document outlines a significant shift in the regulatory framework, moving from a draft status to a formal enforcement standard. The primary focus of these amendments is the expansion of legal provisions under which the MHRA can issue infringement notices or pursue criminal charges. Under the updated regulations, the scope of enforceable violations has been broadened to align with recent legislative changes. Notably, the amendment introduces a dual-track enforcement mechanism. The MHRA now possesses the authority to issue administrative infringement notices for the same breaches that could also be classified as criminal offences. This change is designed to facilitate a more proportionate and pragmatic regulatory response, allowing the agency to address non-compliance through corrective notices rather than defaulting to severe legal actions when a more flexible approach is appropriate. While the provided text does not name specific companies or list individual inspection dates, it serves as a broad directive for all entities involved in clinical trials within the United Kingdom. Organizations are expected to review their internal processes to ensure full adherence to the expanded requirements. Failure to comply with these updated standards may result in formal notices or prosecution, depending on the severity and nature of the violation. This regulatory evolution emphasizes the agency's commitment to maintaining trial integrity while providing a clearer path for corrective action.

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## Content

The amended Clinical Trials Regulations took full effect on 28 April 2026. As such, this guidance should now be considered effective and is no longer in draft. The guidance document explains that under the amended Clinical Trials Regulations, the provisions against which an infringement notice or an offence can be raised have been expanded, primarily to reflect changes in legislation as a result of this amendment. The amendment to the Regulations also brings the ability to issue infringement notices against the same provisions which, if contravened, constitute an offence to facilitate a proportionate and pragmatic approach.

## Attachments

- [Clinical Trials Regulations enforcement provisions](/government/publications/clinical-trials-regulations-enforcement-provisions/clinical-trials-regulations-enforcement-provisions)