Clinical trials are research studies in which various treatments, interventions, or tests are investigated for their safety and efficacy when used to detect, prevent, or treat diseases and medical conditions in patients and healthy volunteers.
The gold standard for clinical trials are randomized, double-blindA double-blind study is a study in which neither the investigators nor the study participants know which participants are receiving the active treatment and which participants are receiving the control treatment until the study has been completed and the seal on the code has been broken. More, placebo-controlled studies.