U.S. Department of Health and Human Services


Clinical Trials

FAQ: Understanding Clinical Trials

The frequently asked questions in this page provide detailed information about clinical trials. Educate yourself before deciding whether you should participate in a clinical trial or not.

Review Date: December 06, 2012

NIH National Library of Medicine - NLM

FAQs About Clinical Studies

This document answers frequently asked questions about clinical studies, research studies in which real people participate as volunteers.

Review Date: December 10, 2012

NIH Clinical Center - CC