Infliximab, Regulatory T Cells, IL2 and Crohn's Disease
Recruitment status was Recruiting
Crohn's disease is an inflammatory (swelling and soreness) disorder of the digestive tract. Affected patients suffer from abdominal pains, diarrhea (sometimes bloody), weight loss. It is a lifelong disease with frequent flares during the course of the disease. Crohn's disease is mostly treated with medications, sometimes surgery is needed. Infliximab is a medication for treating severe Crohn's disease. This medicine is effective by blocking special substance (tumor necrosis factor) released from certain white blood cells in the body. Infliximab is given via a vessel at week 0, 2, 6 initially, then every 2 monthly for maintenance. However, some of patients with Crohn's disease do not respond infliximab. Currently there is no test to reveal which patients will respond to treatment. This study aims to analyze and compare particular subgroup of white cells and its products during and after infliximab treatment which may determine the responsiveness to infliximab treatment.
|Study Design:||Allocation: Non-Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
|Official Title:||Analysis of Relationship Between Infliximab Treatment Response, Regulatory T Cells, and Interleukin-2 in Crohn's Disease|
- Changes of IL-2 and Treg cell levels [ Time Frame: 1 year ] [ Designated as safety issue: No ]To determine if the change of IL-2 and Treg cell levels can be used clinically as a predictive marker for differentiating Infliximab responders from nonresponders
|Study Start Date:||December 2010|
|Estimated Study Completion Date:||July 2012|
|Estimated Primary Completion Date:||July 2012 (Final data collection date for primary outcome measure)|
All patients will have chest x-ray and pregnancy test (if female) prior to infliximab treatment.
There will be total 5 study visits. At each visit, body weight will be measured, abdominal exam will be performed , 2 tablespoonful of blood will be drawn, stool will be collected, a questionnaire will be completed.
|Contact: Zili Zhang, MD||5034941078|
|United States, Oregon|
|Oregon Health & Science University||Recruiting|
|Portland, Oregon, United States, 97239|
|Principal Investigator: Zili Zhang, MD|
|Sub-Investigator: Judy Collins, MD|
|Principal Investigator:||Zili Zhange, MD, PhD||Oregon Health and Science University|