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Call toll free: 1-800-411-1222
(TTY for the deaf or hard of hearing 1-866-411-1010)
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You can search the collection of research studies being conducted at the NIH Clinical Center at Search the Studies. In addition, provides patients, family members, and members of the public easy and free access to information on clinical studies for a wide range of diseases and conditions.

Patient Recruitment

Disorders of the Digestive System

Doctor with a male patient with his hand over his stomach.

Artistic graphic of an intestinal system.

Do you have a digestive disorder?

Researchers at the National Institutes of Health (NIH) Clinical Center seek adults with disorders that affect the esophagus, stomach, intestines, or bowel to participate in research studies.

The study involves:

  • Physical examination and medical history
  • Collection of blood, urine, and stool
  • Other tests depending on your diagnosis

Location: The NIH Clinical Center, America’s research hospital, is located on the Metro Red line in Bethesda, Maryland.

For more information, please call toll free:
TTY: 1-866-411-1010
Se habla español

Or go online:
Refer to study #12-DK-0154

Department of Health and Human Services
National Institutes of Health
National Institute of Diabetes and, Digestive and Kidney Disorders

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This page last updated on 03/07/2019

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