Clinical trials are an important part of medical research. Researchers need people to volunteer to take part in a clinical trial. Learn about who can take part, what you should know as a participant, and what to do if you have any concerns.

Who can participate

Find out who can take part in a clinical trial, why you may not be able to participate and whether children can take part.

What you should know

Learn about the potential benefits and risks and what questions you should ask before deciding to take part in a trial.

Concerns about a clinical trial

Find out what you can do if you have a concern or complaint about a trial.