Immune Regulation in Ulcerative Colitis or Crohn s Disease

Part of paid clinical trials in Bethesda, Maryland.

Sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
Study ID
NCT00001184
Status
Recruiting
Apply to this trial

Conditions

Eligibility Criteria

Sex
ALL
Age
1 Day - 75 Years
Healthy Volunteers
Accepted

Study Details

This study will investigate in patients with Crohn s disease and ulcerative colitis how the body s immune system controls inflammation in the gastrointestinal tract (stomach and intestines)-specifically, how lymphocytes (a type of white blood cell) function in inflammatory responses. This protocol does not involve any experimental treatments. Patients between the ages of 0 and 75 years of age with Crohn s disease or ulcerative colitis or symptoms of inflammatory bowel disease may be eligible for this study. Screening tests may include the following: medical history and physical examination, routine blood tests, examination of stool specimens, X-rays such as barium enema or upper GI series, proctosigmoidoscopy, colonoscopy, gastroduodenoscopy, and small bowel biopsy. Participants will receive medical treatment according to the best generally accepted measures for treating Crohn s disease or ulcerative colitis. This may include anti-inflammatory drugs, immunosuppressive drugs, and antibiotics to treat infections. A surgical consultation may be recommended for patients whose disease does not respond to medical treatment. If surgery to remove intestinal tissue is recommended, a qualified gastrointestinal surgeon will perform the procedure. In addition, participants may undergo the following procedures: * Blood drawing - No more than 450 milliliters (30 tablespoons, or 15 ounces) of blood will be taken from adults over a 6-week period. A maximum of 7 ml (1/2 tablespoon) of blood per kilogram (2.2. pounds) of body weight will be obtained from children within the same time period, with no more than 3 ml/kg taken at any one time. * Leukapheresis - This procedure is done to collect large quantities of white blood cells. Whole blood is collected through a needle in an arm vein, similar to donating blood. The blood is circulated through a machine that separates it into its components, and the white cells are removed. The rest of the blood is returned to the body, either through the same needle or through another needle in the other arm. * Intestinal biopsies - Intestinal tissue will be obtained during colonoscopy with intestinal biopsy in patients who require this procedure as part of their standard medical care. Patients are given a sedative to reduce anxiety, but are conscious during the procedure. A flexible tube is inserted into the rectum and large intestine, allowing the physician to see the intestinal mucosa. At various places, small pieces of tissue are plucked out.

Key Dates

Start date
Aug 7, 1998
Status verified
Apr 2026

Study Design

Enrollment
1,000 participants (estimated)

Arms

  • Arm: 1
    Patients between the ages of 0 and 75 years of age with Crohn s disease or ulcerative colitis or symptoms of inflammatory bowel disease may be eligible for this study.

Primary Outcome Measure

To identify the molecular abnormalities that result in inflammatory bowel diseases and develop novel therapies based on these discoveries. [ Time Frame: at close of study ]

Central Contacts

Locations (1)

FacilityCityStateZIPSite coordinators
National Institutes of Health Clinical CenterBethesdaMaryland20892-

Find similar trials in Bethesda, MD

By condition
Ulcerative colitis
By specialty
GastroenterologyInflammatory bowel diseaseAutoimmune disease
By research site
National Institutes of Health Clinical Center· Bethesda, MD

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