[How to share results of clinical trials with study participants?].

Informing research participants of the results of clinical trials in which they were enrolled is in agreement with patients' rights and human dignity; such feedback is considered an ethical standard applied to clinical research. Cancer patients who participate in a clinical trial usually want to know the results. Here we analysed the literature about the different ways of disclosure of clinical trial results to participants, questioning their expectations and the meanings they give to the results. We describe some of the dilemma and intertwining between clinical care and clinical research. We highlight how the standardisation of sharing such results to participants could raise difficulties particularly for the relationship between doctor and patients.