Patients that are undergoing clinical trials to measure the effect of an intervention as e.g. new medicines, are exposing themselves to potential risks for the benefit of science. They have the right to know the outcome of these experiments. All studies, whether done by pharmaceutical companies or public institutions, need to be reported and should be accessible for health care providers and researchers. The Dutch Association of Pharmaceutical Medicine (www.nvfg.nl) very much supports the goals of the AllTrials campaign.