Abstract
The highly publicized deaths of research participants Ellen Roche and Jesse Gelsinger are stark reminders that risk is inherent in medical research and while untoward outcomes are infrequent when compared to individual and societal benefits, injury and even death will happen. Who is responsible for the welfare of research subjects and what are they owed? Why were they put at risk to begin with? Are obligations, if any, to research subjects dependent on the type of study in which they participate, in recognition that there may be personal benefit from participation in some studies?The issue of injury resulting from participation in research and answers to questions such as those just posed were last considered in depth nearly 20 years ago by the President's Commission for the Study of Ethical Problems in Medicine and Biomedical and Behavioral Research.