Ulcerative Colitis Clinical Trial
Official title:
Mucosal Immunity of Ulcerative Colitis Patients Undergoing Therapy With Trichuris Suis Ova
The purpose of this study is to understand the immune response activated in the human gastrointestinal tract by Trichuris Suis Ova (TSO) in patients with ulcerative colitis.
The concept of helminthic therapy (using worms to treat diseases) is supported by
experiments in mouse models as well as several clinical studies. TSO, which are purified
eggs from the porcine whipworm Trichuris suis, are being investigated in clinical trials as
a potential therapeutic agent for the treatment of active Crohn's disease, relapsing
multiple sclerosis, peanut and tree nut allergy, and adults with autistic disorders.
The goal of this study is to understand the immune mechanisms activated in the human
gastrointestinal tract by treatment with TSO, which may lead to improvements in the symptoms
of ulcerative colitis (UC). TSO have been shown to have a clinical benefit on a subset of
patients with UC in a previous randomized placebo-controlled trial (Summers et al. 2005).
However, the mechanisms of action of TSO on the intestinal mucosa remain unclear.
We propose an exploratory 24-week mechanistic randomized double-blind placebo-controlled
crossover study of TSO in patients with established and active UC to better characterize
similarities and differences in the immune mechanisms of the intestinal mucosa in response
to TSO. We hypothesize that treatment with TSO will lead to an anti-inflammatory immune
response in some individuals with UC through an increase in intestinal mucus production and
modulation of Th1, Th2, Th17, and T-regulatory effector lymphocyte populations.
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Allocation: Randomized, Intervention Model: Crossover Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Basic Science
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