National Cancer Institute video on clinical trial<unk>  The<unk>  are the stages in which scientists conduct experiments with a health intervention to obtain sufficient evidence for a process considered effective as a medical treatment. For drug development, the clinical<unk>  start with testing for safety in a few human subjects, then expand to many study participants (potentially tens of thousands) to determine if the treatment is effective. Clinical research is conducted on drug candidates, vaccine candidates, new medical devices, and new diagnostic assays.
Phases of clinical research
Outline of clinical research
Comparison of birth control methods
Timeline of medicine and medical technology
Diagnosis-related group
Glossary of clinical research
Clinical trials publication
History of Modern Biomedicine Research Group