Video - Clinical trials

Clinical trials are research studies that test how well new medical treatments work in people, and they are used to determine whether a new treatment is safe and effective. In most cases, people participating in clinical trials do not receive any direct benefit from it.

Clinical trials usually involve two types of participants: the experimental group, the control group, and the placebo group. The experimental group receives the new treatment; the control group receives a standard treatment or placebo (a medicine or other preparation with no therapeutic effect).