Ethical principles should be respected in medical research as well as the development history of views concerning bioethics in Brazil and in the world. The value of the 196/96 Regulation of the National Health Council and the concern of the National Commission on Ethics in Research (Comissão Nacional de Ética em Pesquisa (CONEP) as conduct regulators of research using humans. Based on the principles and accumulated world experience up to now issues related to maximum participant protection especially concerning the health area are approached.
Medical ethics; Ethics, research