View clinical trials related to Colitis, Ulcerative.
Filter by:The purpose of this study is to find the optimal dose of retarded release Phosphatidylcholine in the most severe form of ulcerative colitis. The hypothesis is that ulcerative colitis (UC) is caused by a barrier dysfunction of the colonic mucus layer. The background of the study is the finding, that the phosphatidylcholine (PC) content of the colonic mucus is strongly reduced in UC compared to healthy controls and patients with Crohn´s disease. The content was meuasured in non-inflamed areas of the colon in UC. Thus, we evaluate whether a substitution of colonic PC is an effective method.
The purpose of this study is to evaluate if retarded release phosphatidylcholine is an effective alternative to steroid dependent or -refractory course in chronic active ulcerative colitis. The hypothesis is, that ulcerative colitis is caused by a barrier defect of the colonic mucus layer. The background of the study is the finding, that the phosophatidylcholine content of the colonic mucus is strongly reduced in ulcerative colitis (UC) compared to healthy controls and patients with Crohn´s disease. The content was measured in non-inflamed areas of the colon in UC. Thus, we evaluate whether a substitution of colonic PC is an effective method for steroid dependent UC. See: Gut. 2005 Jul;54(7):966-71. Stremmel et al.
To evaluate the safety and efficacy on clinical symptoms, mucosal histology and endoscopic mucosal appearance of two doses of SR140333B against placebo in patients with mild to moderate ulcerative colitis resistant to treatment with 5-ASA.
An increase prevalence of CMV, EBV and or HHV-6 in diseased tissue of inflammatory bowel disease would suggest a role for these viruses in the etiology and/or exacerbation of IBD, whereas their absence would preclude such association.
The purpose of the study is to demonstrate the safety and effectiveness of the Adacolumn Apheresis System to treat the signs and symptoms of ulcerative colitis.
Isoprostanes are compounds that are produced as a result of oxidative damage to cell membranes. Elevated tissue, serum, and urinary isoprostane levels have been described in a number of inflammatory diseases. The goal of this study is to determine utility of measuring urinary isoprostane levels in pediatric patients with inflammatory and non-inflammatory gastrointestinal disease. Urine samples will be collected from pediatric patients undergoing procedures in the Children's Hospital endoscopy unit. Clinical disease activity will be assessed using a standardized clinical disease activityiIndex. Gross endoscopic and histologic findings will be graded. Previously obtained laboratory studies will also be recorded. Urinary Isoprostane levels will be determined using a commercially available assay. Isoprostane levels will be compared across conditions (IBD vs. non-inflammatory, Crohn's disease vs. ulcerative colitis) and tested for statistical significance. Similarly, disease severity and urinary isoprostane levels will be assessed. The sensitivity, specificity, and positive and negative predictive values of elevated urinary isoprostane levels at discriminating pediatric patients with inflammatory and non-inflammatory gastrointestinal disease will be calculated.
This is a multi-centre, randomised, controlled, investigator blinded study. The randomisation will be done centrally. The patients will be treated for 1 year, with clinical and laboratory assessments at 0, 4, 8 and 12 months. Endoscopic examination is at enrollment and on completion of the study (at relapse or after 12 months). Number of Subjects (Planned and Analysed): - 360 patients for demonstration of non-inferiority between once daily and twice daily; - 326 to be analysed in per-protocol (PP) analyses; and - 360 in intention-to-treat (ITT) analyses.
The purpose of this study is to evaluate long-term safety information of infliximab in patients who have participated in infliximab clinical studies in ulcerative colitis.
We, the investigators at University of Washington, plan on evaluating the effect of open label Asacol at a dose of 4.8 grams/day divided BID (twice per day) or TID (three times per day) on its ability to induce remission in patients with mild to moderately active ulcerative colitis. We hypothesize that both regimens will have the same efficacy and no difference in side effects.
The purpose of this study is to determine the influence of different 5-aminosalicylate concentrations on the metabolism of azathioprine or 6-mercaptopurine in patients with inflammatory bowel disease.