Clinical Research Glossary

healthy volunteer healthy volunteer


A study participant who does not have a disease or condition, including the one being studied.

Example of healthy volunteer in a sentence

A healthy volunteer should not have any known diseases or conditions.

More Info

A healthy volunteer may test the study treatment’s safety or be the comparison (control) during the study.

Other info to think about when joining a study

Some studies recruit healthy volunteers. You may see the term “healthy volunteer” in the consent form or other information about the study.

If you are healthy and wish to volunteer for a study, you will be screened to make sure you meet the study criteria. Feel free to ask the researchers any questions you might have about what the study is about and what you will be asked to do if you join.

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