1. Health
About.com
Multiple Sclerosis

Discuss in my forum

Control Group for Clincal Trials

By , About.com Guide

Updated May 01, 2007

About.com Health's Disease and Condition content is reviewed by the Medical Review Board

Definition: A control group is a comparison group. To understand how effective a new medication may be, researchers need to compare it to something, often a placebo or an existing medication. The people in the control group will not be given the new medication. Generally no one knows which group they are in until the trial is finished.
About.com
Multiple Sclerosis
  1. About.com
  2. Health
  3. Multiple Sclerosis
  4. Glossary
  5. MS Control Group - Control Group in Mulitple Sclerosis Trial

©2013 About.com. All rights reserved.

We comply with the HONcode standard
for trustworthy health information: verify here.