How Clinical Trial Phases Work, Phase 1 To Phase 4, with Simple Examples

Test tubes filled with different colored liquids arranged in a laboratory rack during medical research

Clinical trials are structured research studies involving human participants that test new medical interventions, such as: Drugs Vaccines Medical devices Treatment strategies Research teams conduct these studies in controlled environments using strict scientific methods. The goal of clinical trials is to evaluate safety, effectiveness, and potential medical benefits before treatments become widely available to patients. … Read more