By definition clinical trials do not happen in a void, there is already a system of Institutional Review Boards and controls to prevent abuse of patients and to

By definition clinical trials do not happen in a void, there is already a system of Institutional Review Boards and controls to prevent abuse of patients and to prevent experimentation without informed consent. This would be an extension of that. And more generally, if you are running experiments with human beings; society has a material interest in both the process and the results.