Written by: Haim Ravia, Dotan Hammer
France’s data protection authority, the Commission Nationale de l’Informatique et des Libertés (CNIL), has officially adopted a modernized regulatory framework for health research, replacing its previous standards with a stringent new “reference methodology” (MR-001). The updated rules, published in the Official Journal on May 23, 2026, respond to the rapid digitization of clinical trials and escalating cybersecurity risks to sensitive medical data.
The new MR-001 methodology applies to all health-related research requiring participant consent, including interventional clinical trials, medical device investigations, and genetic testing. By adhering to these standardized “best practices,” researchers can benefit from a simplified “declaration of conformity” rather than seeking individual authorizations from the CNIL, a move intended to foster innovation and reduce administrative burdens.
A cornerstone of the update is a robust focus on information security and quality control. For the first time, the methodology integrates specific technical annexes that mandate “state-of-the-art” protections. Most notably, the CNIL mandates multi-factor authentication (MFA) for all digital tools used in research. This requirement takes effect on January 1, 2027, for internet-accessible systems and January 1, 2028, for all other research databases.
The rules also tighten data minimization protocols to protect participant anonymity. Researchers must use unique “inclusion numbers” that do not reveal identifiable traits, such as birth dates or patient initials. These must be replaced by non-identifying codes during subsequent stages of analysis to further mitigate the risk of re-identification.
In terms of transparency, the regulations modernize how participants receive information. While paper notices remain a right, researchers may now provide mandatory GDPR disclosures electronically, provided that the participant consents and possesses the requisite means to access such electronic medium. The methodology also enforces strict separation of roles for data recipients. It establishes barriers between administrative staff, monitoring teams, and scientific researchers to ensure no single entity has unauthorized access to both administrative identities and clinical research data simultaneously.
While existing research projects can continue under the previous 2018 rules, all new health studies must comply with the updated MR-001 framework immediately. The CNIL emphasized that these rules are essential for maintaining public trust in the integrity of the French medical research ecosystem.
Click here to read CNIL’s new rules on data protection in health-related research (in French).
