By Raphaël Lepilleur. Synthesis No. 2676, Published on 06/04/2026
– Photo: Cynomolgus macaque, the main primate for research, intended for the future center. Credits: Basile Morin, CC BY-SA 4.0 via Wikimedia Commons
“Producing 1,800 primates for research in France” is presented as a necessity, and the CNRS project is seemingly within a strict framework. However, the opinion of the ethics committee goes beyond the project itself and highlights the limits of the system: ongoing opacity, incomplete dissemination of results, insufficient alternatives, structural contradictions. The debate between science and sustainable organization of experimentation largely remains behind closed doors.
[Context: The CNRS project aims to produce 1,800 primates for research by 2032 in a Primate Center in Rousset, France. This has raised ethical and practical concerns regarding the use of animals for scientific purposes.]
The document under review is an opinion from the CNRS Ethics Committee (COMETS), consulted by the institution’s management to evaluate the use of animals for scientific purposes. This consultation addresses tensions surrounding these practices, focusing on a general perspective and a specific case, the primate center project in Rousset. The opinion was elaborated by a working group, including Virginie Courtier-Orgogozo, who expressed dissent regarding the excessive use of primates in France. This disagreement reveals internal tensions on the subject, particularly coming from a respected figure within the scientific community.
[Fact Check: Virginie Courtier-Orgogozo, a CNRS research director, has raised concerns about France’s increasing reliance on primate research and advocated for alternative approaches.]
The COMETS analysis aligns with the European framework, accepting animal testing under strict conditions. These conditions include scientific justification, demonstrated necessity, evaluation of the benefits versus harms, and adherence to the “3R rule”: Replace, Reduce, Refine to minimize animal pain and stress. The discussion revolves around the tension between reducing animal usage and validating the scientific experimentation principle.
[Fact Check: The “3R rule” refers to alternates to animal testing: Replace animals, Reduce the number of animals used, and Refine testing methods to reduce pain and distress.]
The central issue revolves around the necessity of these research practices. In practical terms, the purpose of these studies remains questioned, with some examples showcasing the implantation of electrodes in macaques, inducing illnesses, and administering substances like cocaine for observation. Transparency is cited as a fundamental requirement in these protocols.
[Fact Check: Concerns have been raised about the ethical implications of subjecting primates to various experiments, given their cognitive and emotional capacities.]
Virginie Courtier-Orgogozo emphasizes the unique position of primates due to their cognitive and emotional capabilities, and the importance of recognizing their sentient nature despite being in captivity. The broader implications of these choices go beyond mere activism and touch upon decision-making that impacts society as a whole.




