View clinical trials related to Irritable Bowel Syndrome.
Filter by:Irritable Bowel Syndrome (IBS) carries a high prevalence worldwide and imposes substantial economic burden on patients, healthcare systems and society. In recent years, dysbiosis of the gut microbiota and bile acid (BA) malabsorption have been identified as putative pathophysiological mechanisms. Bile acid metabolism and gut microbiota are closely related. When patients with IBS-D were compared to healthy subjects, total levels of faecal BAs do not differ, but increased faecal primary BAs and reduced secondary BAs have been repeatedly observed in patients with IBS-D, suggesting abnormal BA deconjugation. Rifaximin, a non-absorbable antibiotic, has been shown in a recent meta-analysis to produce a therapeutic clinical gain compared to other treatment options for IBS, including placebo, paralleled by a high safety profile. It is also now known that changes in fecal microbiota have been observed in patients with IBS who have responded positively to Rifaximin. The relationship between microbiota changes, metabolomics changes after Rifaximin is unclear. There is emerging data to suggest duodenal dysbiosis as a putative pathophysiology, which in one study, clustered together with salivary microbiota than with fecal microbiota. However, the oral microbiome in patients with IBS has never been explored, which could possibly explain the downstream observations of duodenal and fecal dysbiosis. The investigators aim to assess the changes in metabolomic and microbiota profile after Rifaximin treatment, between responders and non-responders. The investigators will also explore the oral microbiome in IBS patients, and assess its relationship with fecal microbiome between responders and non-responders.
A placebo controlled study to determine the efficacy and mode of action of ondansetron in the treatment of irritable bowel syndrome with diarrhoea.
This is an open labeled, one-armed real-world study in IBS-patients. All participants will receive active treatment for 12 weeks. The primary objective of the study is to assess the effect of Human Milk Oligosaccharides (HMOs) on bowel function in adults with IBS. Secondary objectives are to evaluate HMOs' tolerability, effect on participant reported satisfaction with bowel habits, interference with life in general, quality of life, somatic symptoms, and anxiety and depression in all patients and subgroups of patients.
Observational Prospective Study to Describe Irritable Bowel Syndrome in the Russian Federation
Gluten-free diet has been shown to improve gut symptoms in patients with celiac disease and also in adult patients with diagnosis of Irritable Bowel Syndrome (Rome III criteria). Antibodies to native gliadin (AGA) have been suggested as a potential diagnostic marker of response to GFD. However, this has not been tested in a prospective study in IBS patients. Identification of predictors of a symptomatic response to GFD within the IBS population would improve the clinical management of these patients. The purpose of this study is to evaluate the effect of gluten-free diet on gastrointestinal symptoms and gut motility in patients with Irritable Bowel Syndrome stratified according to their antigliadin antibodies status. Additional purposes include investigating effects gluten free diet may have on other parameters: - Improvement of mood - Quality of life and general well-being - Changes in gut microbiota
The objective of this study is to evaluate the long-term safety and efficacy of linaclotide in post-marketing use.
In this randomized controlled study in patients with irritable bowel syndrome (IBS) the investigators plan to compare the effects of a structured patient group education (IBS School) with structured education provided via the internet. The effects of the interventions on GI and psychological symptom severity, knowledge and quality of life will be assessed with validated questionnaires at baseline, immediately after the intervention and 3 and 6 months after the intervention.
This study is designed to evaluate the most applicable endpoints for evaluation of the Biomerica InFoods® IBS product.
This is a pilot study to determine the efficacy of the Stress Management and Resilience Training (SMART) program in improving gastrointestinal and psychological symptoms, health-related quality of life, and satisfaction of care in patients with irritable bowel syndrome (IBS). Half of the participants will be enrolled in the SMART program initially. The other half will be placed in a self-management stress reduction program where they will read a popular stress reduction book over 12 weeks. Then they will have access to participate in the online SMART program.
To assess the effect of L. casei DG® (Lactobacillus paracasei CNCMI1572; Enterolactis® plus) on abdominal symptoms and gut microbiota metabolism/composition in non constipated patients with IBS (Irritable Bowel Syndrome). Patients will be randomized to receive L. casei DG® capsules, b.i.d. for 12 weeks the a 4 weeks Follow Up period will follow.