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Trial of Antimicrobials Versus Placebo in Addition to Fecal Transplant Therapy in Ulcerative Colitis
The investigators will test the hypothesis that giving antibiotics prior to fecal transplant therapy for active UC increases the proportion of patients in remission at the end of treatment. The investigators will randomize patients aged 18 or over with active UC to antibiotics (metronidazole 500mg, doxycycline 100mg, Terbinafine 250 mg, all twice daily for two weeks); or identical placebo. At the end of two weeks the investigators will give all patients fecal transplant therapy twice per week for eight weeks from the donor whose stool showed most efficacy in the trial (donor B). Patients will complete a validated UC questionnaire, have a...
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Triple Combination Therapy in High Risk Crohn's Disease (CD)
The purpose of this study is to determine the effect of triple combination therapy with an anti-integrin (vedolizumab intravenous [IV]), a tumor necrosis factor (TNF) antagonist (adalimumab subcutaneously [SC]), and an immunomodulator (oral methotrexate) on endoscopic remission in participants with newly-diagnosed CD stratified at higher risk for complications.
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TUDCA as a Therapy for Ulcerative Colitis (UC)
This is a Phase I open label study examining the efficacy and safety of TUDCA (tauroursodeoxycholic acid) in ulcerative colitis treatment.
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Two Therapeutic Strategies for the Maintenance of Remission in Patients With Ulcerative Colitis
Ulcerative colitis patients treated with Infliximab (IFX) in deep remission after at least 12 months of treatment will be randomized to continue IFX or to stop IFX and start Azathioprine (AZA). Each patient will be followed for 12 months.
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Ulcerative Colitis Relapse Prevention by Prebiotics
Ulcerative colitis (UC) is a relapsing chronic intestinal inflammation with no existing cure, that affects over 300 per 100.000 Canadians, the highest prevalence in the world. The standard drug therapies are expensive and potentially toxic, and mostly directed against the chronic inflammatory process. UC is the result of a dysbiosis between disease-inducing and protective intestinal bacteria in a genetically susceptible host. Non-digestible dietary carbohydrates (NDC) stimulate the growth of protective endogenous intestinal bacteria which ferment them into short-chain fatty acids (SCFA), some of the latter with natural anti-inflammatory...
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Ulcerative Colitis - Vedolizumab- With/Without Prior Exposure to Anti-TNF（Tumor Necrosis Factor）Therapy
A case-control study to evaluate the immunoinflammatory effect of prior exposure to anti-TNF therapy in patients with ulcerative colitis starting vedolizumab therapy
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Understanding Abdominal Pain in IBD and IBS
Abdominal pain is a central symptom of Inflammatory Bowel Disease (IBD) and Irritable Bowel Syndrome (IBS). IBD is an autoimmune disease characterized by inflammation of the gastrointestinal tract. IBS does not have clear biomarkers and is diagnosed based on symptom reports. The aim of this study is to explore biopsychosocial factors which may perpetuate and/or increase the severity of pain in these conditions. The main focus will be on the role of top-down brain processes in the experience of abdominal pain.
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Use of a Novel Diet (UC DIET) for Treatment of Mild to Moderate Active Pediatric Ulcerative Colitis
The goal of the study is to evaluate strategies that target the microbiota for the treatment of Ulcerative Colitis , This study will involve a novel diet that the investigators developed , based on the hypothesis that UC involves dysbiosis , underutilzation of certain metabolic pathways and use of pathways that increase risk of inflammation . The investigators have postulated that manipulation of colonic bacterial metabolism with this diet will induce remission in UC without involving additional immune suppression.
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Validation and Interobserver Reliability of a Simple Ultrasound Score for Crohn's Disease
Crohn's disease (CD) is a chronic inflammatory disease in the gastrointestinal (GI) tract. It is characterized by an alternating course between remission and relapse, which necessitates subsequent adjustments in medical therapy. Thus, it is important to have suitable tools to assess disease activity, and currently the reference standard is using ileocolonoscopy. However, ileocolonoscopy causes major patient discomfort and due to logistic reasons, it cannot be performed on a regular basis. High frequency ultrasound (US) is a potentially useful tool to evaluate changes in disease activity in affected bowel segments. Although there are some...
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Value of Pharmacokinetic Assays in the Prediction of Induction and Maintenance Therapeutic Response in Crohn's Disease
Vedolizumab (VDZ) is a monoclonal antibody which has shown its efficacy in Crohn's disease by inducing and maintaining clinical response/remission. The French marketing authorization was obtained for Crohn's disease in patients in failure with anti-TNF (Tumor Necrosis Factor) agents. For Crohn's disease patients treated with vedolizumab, a strong association between vedolizumab serum levels and clinical response to induction and maintenance was demonstrated by anterior studies. It could be of paramount interest to early identify Crohn's Disease patients under vedolizumab who will be responders to vedolizumab induction and to...
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