A clinical trial is the scientific term for a test or study of a drug or medical devise in people.
These tests are done to see whether the product is safe and effective for people to use.
Doctors and other health professionals run the tests according to strict rules set by the Food and Drug Administration (FDA).
The FDA has established rules to make sure that people who agree to be in the studies are treated as safely as possible.
Carefully conducted clinical trials are the safest and fastest way to find treatments that work, and new ways to improve health.
