Definition of the problem: Medical research with children, especially non-therapeutic research, requires particular consideration. In the current situation this kind of research is not clearly regulated by law in Germany. This entails practical problems in evaluating clinical studies from an ethical point of view. Arguments and conclusion: To develop a new policy framework the international ethical discussion is reviewed. The article analyzes the historical development of research with minors from an ethical perspective, the notion of minimal risk, criteria for evaluating (...) risk and harm in research, consent and assent procedures, and the participation of parents and children in the planning of clinical studies. A list of proposals for minimal standard in ethical regulation of research with minors is developed. (shrink)