Clinical Research Glossary

clinical trial clinical trial


A research study that tests drugs, devices and treatments to see if they are safe and work in people.

Example of clinical trial in a sentence

Participants in a clinical trial help the study doctor learn more about a new treatment.

More Info

A clinical trial could study ways to diagnose, treat, or even prevent illness. Some clinical trials look at just one study treatment. Others might compare the study treatment to another treatment, a placebo, or even to a group that is taking nothing in order to measure how well the study treatment works.

Other info to think about when joining a study

The term “clinical trial” is used for studies of people with various diseases and conditions.

You might be asked if you want to take part in a clinical trial. You may also read it on flyers asking for study volunteers.

It is important to understand the risks and benefits of the clinical trial before you enroll.

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