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Healthy people can help us better understand, treat, and prevent diseases. Complete an online screener if you want to volunteer for a clinical research study.​​​

NIAID HIV and Emerging Infectious Diseases Program

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Clinical Trials Overview

What is a Clinical Trial?

A clinical trial (also clinical research) is a research study in which people participate as volunteers.

A research study is a scientific investigation to achieve a complete understanding of a topic.

Carefully conducted clinical trials are the fastest and safest way to find

  • Treatments and medications that work in people
  • Ways to improve health

There are strict rules for clinical trials, which are monitored by

  • National Institutes of Health (NIH)
  • Food and Drug Administration

Some of the research studies at the Clinical Center involve promising new treatments that may directly benefit patients.

You can Search the Studies to access a database of clinical studies being conducted by NIH at the Clinical Center in Bethesda, Maryland.

For questions about participating in any of these clinical studies, contact:

Patient Recruitment and Public Liaison Office
Toll free: 800-411-1222
TTY: 866-411-1010

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Last Updated June 09, 2011