A clinical trial tests a new medical approach in people to answer specific health questions while ensuring its safety for research volunteers.
Clinical trials follow strict scientific standards that protect participants and produce reliable study results.
Some clinical trials test new treatments and therapies, or new
ways to use existing therapies. Some test new procedures or
devices. Some are long-term studies examining how disease and
The number of participants in a clinical trial depends on its
size and scope. Some enroll hundreds—or even
thousands—of people while others may enroll only a few.