Article R1123-42 of the French Public Health Code
The substantial modifications referred to in Article L. 1123-9 are those which occur after the authorisation of the research by the competent authority and the favourable opinion of the Committee for the Protection of Individuals and have a significant impact on any aspect of the research, in particular on the protection of individuals, including with regard to their safety, on the conditions for the validity of the research, where applicable…