300,000+ clinical trials. Find the right one.

82 active trials for Irritable Bowel Syndrome

Cerebral Cortical Influences on Autonomic Function

This is an exploratory neurophysiological study that will determine the impact of non-invasive brain stimulation on autonomic regulation, with a focus on gastrointestinal function. These studies should provide a basis for future brain-based neurotherapeutic strategies in patients with functional GI disorders.

Start: April 2019

Effect of FODMAP Restriction on Persistent GI-symptoms in Coeliac Patients

The first aim of the study is to investigate the prevalence of persistent gastrointestinal symptoms and compliance with gluten-free diet and the intake of FODMAP in adult celiac patients. A web-based survey wil be performed and thereafter a randomized controlled trial to test the effect of a FODMAP reduction in patients with celiac disease with irritable bowel-like symptoms.

Start: October 2018

Association Between High Faecal Calprotectin, Increased Intestinal Permeability and Visceral Hypersensitivity in IBS-D Patients

Visceral hypersensitivity, low grade inflammation and increased intestinal permeability are three main pathophysiological mechanisms involved in irritable bowel syndrome. The connexion between these abnormalities is not known. We hypothesis there is a link between them in IBS with diarrhoea.

Start: May 2016

Brain-Gut-Microbiota Interaction in IBS

Are you what you eat? How can dietary components influence microbial composition of the gut and function of the peripheral and central nervous system? The gut and brain is linked through complex mechanisms of sensorimotor functions of the immune system, the hypothalamic-pituitary-adrenal-axis, the enteric nervous system and microbiota. In this project, a multitude of factors contributing to the bidirectional neurobiological communication along the brain-but-axis will be investigated. No disease of the brain-gut axis has been elucidated, therefore our investigations involves approaching a large span of components and processes involved in the axis. This study is carried out as a case-report study (baseline, IBS n=100, healthy controls n=40) followed by a dietary intervention (IBS-D n=60). Through multivariate analyses, the investigators will identify patterns of factors contributing to patient symptomatology and pathology, followed by big data analysis leading to stratification of sub-classification of irritable bowel syndrome (IBS).

Start: May 2019

Is There Any Correlation Between Plasmatic Zonulin and Expression of Intestinal Tight Junction Proteins in IBS Patients?

Increased intestinal permeability is one of the main pathophysiological mechanisms involved in irritable bowel syndrome. The expression of some intestinal tight junction proteins is decreased mostly in IBS-diarrhoea patients. This decrease is correlated with increased intestinal permeability. Currently, no test used in clinical practice could assess intestinal permeability. We hypothesis plasmatic zonulin could reflect intestinal permeability in IBS patients.

Start: February 2017

Are Sleeping Disorders Associated With Visceral Hypersensitivity in Irritable Bowel Syndrome Patients ?

Visceral hypersensitivity is frequent in IBS population up to 60% and is correlated with severity and altered quality of life. Sleeping troubles are most frequent in IBS population. Insomnia is a frequent disorder with an important cost for healthcare. Insomnia could decrease pain threshold. Visceral hypersensitivity was never measure in patients with insomnia. The hypothesis is IBS patients with insomnia probably have lower visceral pain threshold. The objective is to assess pain threshold during a barostat procedure in in IBS patients with or without insomnia in comparison with healthy volunteers or patients with insomnia. If the hypothesis are confirmed, insomnia should be look at in IBS patients and its treatments could improve visceral hypersensitivity and IBS symptoms.

Start: July 2020

Acupuncture for Irritable Bowel Syndrome Patients

In this study, a 14-week, single blinded, randomized controlled clinical trial will be conducted to determine whether acupuncture could have significant benefits than sham acupuncture for IBS.

Start: May 2020

Faecal Microbiota Transplantation (FMT) in Patients With IBSmechanism(s) of Action

Two hundrad patients are randomized to either 90 g transplant, 90 g transplant twice with 1week interval into the distal small intestine via working channel of a gastroscope, or to 90 g transplant into the coecum of the colon via working channel of a colonoscope. The patients shall complete 5 questionnaires measuring symptoms, fatigue and quality of life and collect a feces sample at 0, 2 weeks, 1 month, and 3 months. Dysbiosis and fecal bacterial are determined by using 16S rRNA gene.

Start: January 2020

Irritable Bowel Syndrome and Osteopathic Manipulative Therapy

The Irritable Bowel Syndrome (IBS) is defined by a combination of abdominal pain, bowel dysfunction during recurrent periods of shorter or longer duration. The absence of well-defined pathophysiological marker requires a clinical definition. The most used are the Rome criteria III whose version was published in 2006 and version IV under development. An epidemiological study conducted in 2003 in Europe in 8 countries with over 42 000 people, found on the basis of questionnaires a prevalence of 11.5% with a diagnosis of IBS of 4.8%.in the total population; the results of this study were comparable to data obtained in the USA. A French work of our team at 35 447 healthy adults found a 6.2% frequency. In all these studies, there is a very large predominance of women (sex ratio near 2), with a preponderance of subjects of the age group 40-50 years. IBS economic weight is high, partly due to costs directly incurred by the IBS and the costs generated by associated diseases: number of visits to the general practitioner, to the specialist, the prescription and realization of complementary examinations, hospitalization, purchase drugs and work stoppage. From a pathophysiologic perspective, IBS is now considered as a multifactorial disease involving varying degrees, depending on the individual variables, visceral hypersensitivity, disturbances of digestive motility, impaired sensorimotor way communications between the gastrointestinal tract and the central nervous system, intestinal micro-inflammation. Hypothesis of this search is that the osteopathic manipulative treatment (OMT) will improve the symptomatology of IBS in patients with functional gastrointestinal disorders.

Start: May 2017

The Effect of a Low FODMAP Diet in Irritable Bowel Syndrome Patients

Tertiary care IBS patients will be recruited for a prospective low FODMAP intervention study, hereby focusing on the reintroduction phase of the diet, where patients are blindly challenged with different FODMAP groups administered as powder, to be added to the strict FODMAP exclusion phase. During the screening phase of two weeks, baseline data regarding psychological, nutritional, microbial, and genetics will be collected. Predictors of treatment response (a 50-point drop on the IBS-severity scoring system (IBS-SSS) during the strict FODMAP exclusion phase of 6 weeks) will be studied with linear mixed models.

Start: November 2019

Safety and Efficacy of Fecal Microbiota Transplantation

The gut microbiota is critical to health and functions with a level of complexity comparable to that of an organ system. Dysbiosis, or alterations of this gut microbiota ecology, have been implicated in a number of disease states. Fecal microbiota transplantation (FMT), defined as infusion of feces from healthy donors to affected subjects, is a method to restore a balanced gut microbiota and has attracted great interest in recent years due to its efficacy and ease of use. FMT is now recommended as the most effective therapy for CDI not responding to standard therapies. Recent studies have suggested that dysbiosis is associated with a variety of disorders, and that FMT could be a useful treatment. Randomized controlled trial has been conducted in a number of disorders and shown positive results, including alcoholic hepatitis, Crohn's disease (CD), ulcerative colitis (UC), pouchitis, irritable bowel syndrome (IBS), hepatic encephalopathy and metabolic syndrome. Case series/reports and pilot studies has shown positive results in other disorders including Celiac disease, functional dyspepsia, constipation, metabolic syndrome such as diabetes mellitus, multidrug-resistant, hepatic encephalopathy, multiple sclerosis, pseudo-obstruction, carbapenem-resistant Enterobacteriaceae (CRE) or Vancomycin-resistant Enterococci (VRE) infection, radiation-induced toxicity, multiple organ dysfunction, dysbiotic bowel syndrome, MRSA enteritis, Pseudomembranous enteritis, idiopathic thrombocytopenic purpura (ITP), and atopy. Despite FMT appears to be relatively safe and efficacious in treating a wide range of disease, its safety and efficacy in a usual clinical setting is unknown. More data is required to confirm safety and efficacy of FMT. Therefore, the investigators aim to conduct a pilot study to investigate the efficacy and safety of FMT in a variety of dysbiosis-associated disorder.

Start: July 2019

Effects of a Food Supplement Composed by BIOintestil ® (Bionocol®) on Microbiota and Inflammatory Profile in Irritable Bowel Syndrome Patients

The aim of this double blind placebo-controlled study is to evaluate the effect of BIOintestil on fecal microbiota, inflammatory chemokines and symptoms in patients affected by Irritable Bowel Syndrome (IBS).

Start: December 2018

Remote Study of an Electronic Means to Characterize Bowel Movements in Adult Populations

A remote study to find out if a mobile phone application (HealthMode Stool) can serve as a useful tool to track and characterize daily bowel movements. The application provides participants with a single place to record their bowel movements either as a part of their general health self-monitoring, or because they may be dealing with a bowel movement condition. The minimal study duration is 1 month, and participants can continue using the application up to 2 years.

Start: September 2019

Frequency of Sleep Abnormalities in Patients With Irritable Bowel Syndrome and Effect of Pharmacological Intervention

Irritable bowel syndrome (IBS), a common gastrointestinal (GI) disorder in India and in the rest of the World, is enigmatic in its pathogenesis. IBS is associated with recurrent abdominal pain or discomfort, bloating, incomplete evacuation, altered bowel habits, and abnormal stool forms. The etiology of IBS remains unclear and different factors were thought to be involved like genetics and environmental factors, visceral hypersensitivity, altered gut microbiota or disorder of the microbiota-gut-brain axis and various psychological factors like anxiety, depression, and insomnia or sleep disturbance. Due to increasing work pressure in today's society, and the consequent shift duty and psychological stress, the frequency of sleep disorders is increasing; disturbed sleep may be associated with a vicious cycle in which altered sleep may result in gastrointestinal (GI) disturbances, which in turn, may jeopardize sleep further. The disorder of the gut microbiota, the largest organ of the human body, is being suggested to be responsible for several GI and extra-GI diseases. Qualitative change in gut microbiota is currently studied by next-generation sequencing. Gut and sleep patterns work in an axis - a two-way street of communication, some studies reported altered gut microbiota or dysbiosis modulates peripheral and central nervous system function, leading to alterations in brain signaling and behavior that possibly leads to sleep disturbances.

Start: February 2020

The Comparison Between the Biomarkers in Inflammatory Bowel Disease Patients and General Control Group

The aims of this study is to investigate a blood-based biomarker that can replace endoscopy in patients with inflammatory bowel disease. For this purpose, blood sample of patients wiht inflammatory bowel disease (ulcerative colitis, Crohn 's disease) was collected at the same time the endoscopy is performed, stored after centrifugation, and analyzed accordingly. Selected biomarkers from the blood sample were investigated to compare those of patients with inflammatory bowel disease and those of general controls. Males and females over the age of 19 participated in the study and are excluded if they have chronic kidney disease or blood clotting disease. The outcome is a find of a blood-based biomarker that best reflects a disease activity.

Start: August 2016

Recurrent Abdominal Pain and Exocrine Pancreatic Insufficiency

This is a 3-year prospective study too identify the role of exocrine pancreatic insufficiency in patients with abdominal pain who are undergoing upper endoscopy. An endoscopic pancreatic function test (ePFT) with secretin will be performed in children undergoing routine investigative EGD. The goal of this study is to identify the role of exocrine pancreatic insufficiency in patients with abdominal pain who are undergoing upper endoscopy, who otherwise would be labelled as recurrent abdominal pain (RAP).

Start: January 2020

Osteopathy on IBS Symptoms in Patients With Ulcerative Colitis in Remission

Type : interventional, randomized single blind study Aim : to evaluate 3 sessions of osteopathy on IBS-like symptoms associated with ulcerative colitis in remission Number of patients : 50 (randomization 1:1) Duration of the inclusion period : 2 years Primary end-point : Irritable Bowel Syndrome Severity Scoring System (IBS SSS) at 3 months

Start: November 2019

Treatment of Functional Abdominal Distension

Background. Abdominal distention is produced by an abnormal somatic postural tone. We developed an original biofeedback technique based on electromyography-guided control of abdominothoracic muscular activity. In a randomized, placebo-controlled trial we demonstrated the superiority of biofeedback over placebo for the treatment of abdominal distention. However, the technique is technically complex and unpractical. Aim. To prove the efficacy of a simplified biofeedback technique for the treatment of abdominal distension. Selection criteria. Visible abdominal distension after meal ingestion; patients are able to identify the offending meal. Intervention. Patients will be randomized into biofeedback in placebo groups.Three sessions of either biofeedback or placebo intervention will be performed 30 min after ingestion of the offending meal during the first 3 weeks of the intervention period. Biofeedback: patients will be taught to control abdominal and thoracic muscular activity by providing a visual display of the abdominal and thoracic perimeter; specifically, they will be instructed to reduce the abdominal perimeter (girth); patients will be instructed to perform the same exercises before and after breakfast, lunch and dinner during the 4-week intervention period. Placebo: abdominal and thoracic perimeter will be recorded but not shown to the patient and a pill of placebo containing 0.5 g glucose will be administered; patients will be instructed to take a pill of placebo before breakfast, lunch and dinner during the 4-week intervention period. Primary Outcome Measure: Effect of the probe meal on the activity of thoraco-abdominal muscles (intercostals, external oblique, internal oblique, upper rectus, lower rectus) measured by electromyography before and after the probe meal. The response to the probe meal will be measured before and after treatment. Secondary Outcome Measures: Effect of the probe meal on sensation of abdominal distension measured by 0-6 scales after the probe meal. Changes in girth produced by the probe meal measured using a non-stretch belt placed over the umbilicus before and after the probe meal. Sensation of abdominal distension measured by 0-6 scales after each meal (breakfast, lunch, dinner) over a 7-day clinical evaluation period before and during the 4th week of the intervention.

Start: July 2019

The Ecological Role of Yeasts in the Human Gut

Irritable bowel syndrome (IBS) and inflammatory bowel disease (IBD) (categorised into Crohn's disease (CD) and ulcerative colitis (UC)) are chronic gut disorders with debilitating symptoms that profoundly impact quality of life, healthcare systems and the economy through lost work days. IBS is common with a prevalence of up to 22%, whereas IBD has a prevalence of 0.3% for CD and 0.5% for UC in Europe. Despite a suggested immunological and genetic aspect of IBD, the causes of IBS and IBD are unknown, however, both have been linked to yeasts in the gut. Due to their lower abundance (constituting only around 0.1% of the total microorganisms in the gut) yeasts have been less studied than bacteria. More recently, significantly altered diversity and composition of yeasts have been identified in IBS and IBD but further investigation is required to fully develop the role of yeasts in the gut. This observational study will assess yeasts and their function in the gut, comparing diseased subjects with healthy controls. The overall aim is to determine if yeasts could be targeted as a potential therapeutic for IBS and IBD to provide relief to sufferers as well as reducing the burden on healthcare systems.

Start: September 2018

L. Reuteri DSM 17938 and L. Reuteri ATCC PTA 6475 in Moderate to Severe Irritable Bowel in Adults

Randomized, double blind, controlled clinical trial, to evaluate safety and efficacy of L. reuteri DSM 17938 and L. reuteri ATCC PTA 6475 as adjuvant to reduce the severity of symptoms in adults with moderate to severe irritable bowel syndrome (IBS). Primary outcome: Global clinical Improve assessed by the GSRS-IBS score. Adults 18-65 years, any gender, with ROME IV criteria for moderate to severe IBS and body max index <36 will be included. Prescreening will be run for 2 weeks, the intervention period will be 2/days for 14t weeks, follow by a 2 weeks period of observation with no intervention. Secondary outcomes include: a) Improvements in the stool patterns evaluated through Bristol Stool Form (BSF); b) Improvement of the quality of life (QoL) measured by Latin-American IBS-QoL questionnaire; c) Improvement of the depression and anxiety severity evaluated by the Goldberg Depression and Anxiety Scale; d) Frequency of rescue medication use and e) Frequency of Adverse Events (AEs)

Start: May 2017