# Clinical investigations: biological safety assessments

Source: https://www.keypedia.com/records/uk_mhra_guidance/uk-mhra/cc55edcf-60c9-4da2-837e-92ad5a6bc664
Type: Guidance
Published: March 30, 2026

> This document outlines the regulatory expectations of the Medicines and Healthcare products Regulatory Agency (MHRA) regarding clinical investigation submissions. As a general guidance document rather than a site-specific inspection report or warning letter, it does not name a particular company, provide inspection dates, or list specific violations. Instead, it establishes a broad framework for all organizations seeking to conduct clinical research in the United Kingdom. The guidance functions within the regulatory framework of the UK Medical Devices Regulations, ensuring that all submissions provide sufficient evidence to verify compliance with statutory safety and performance standards. The primary required actions for sponsors involve the submission of comprehensive data packages that allow the MHRA to validate that the clinical investigation is designed ethically and safely. By detailing these requirements, the agency aims to streamline the approval process and ensure that all clinical trials adhere to high standards of participant protection and data integrity before research commences.

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## Content

This guidance sets out the information that the MHRA expects to be included in a clinical investigation submission, so that we can verify that the requirements of the relevant regulations have been met.

## Attachments

- [Biological safety assessment](/government/publications/clinical-investigations-biological-safety-assessments/biological-safety-assessment)