Clinical Trials for Irritable Bowel Syndrome

Source: ClinicalTrials.gov — U.S. National Library of Medicine — A database of privately and publicly funded clinical studies conducted around the world (U.S. National Library of Medicine, public domain).

This page lists clinical trials related to Irritable Bowel Syndrome from the ClinicalTrials.gov database.

Trial Summary

• Total studies: 50
• Recruiting: 22
• Active, not recruiting: 2
• Completed: 13
• Other: 13

Results are refreshed periodically and may not reflect the most current information available from ClinicalTrials.gov.

Recruiting Trials

NCT04506593 — Indiana University Gastrointestinal Motility Diagnosis Registry

Develop a registry (list of patients) with accurate clinical motility diagnosis. This registry will help the doctors to identify the patients with specific disease conditions. It will also help in promoting future research in gastroenterology motility disorders

NCT06413004 — Brachyspira and Intestinal Allergy-like Immune Reactions in Patients With Irritable Bowel Syndrome (IBS)

The aim of this study is to define local immune responses in the GI tract to food antigens in IBS patients, with and without Brachyspira infection, using advanced imaging. We hypothesize that Brachyspira infection can cause IBS symptoms by inducing loss of oral tolerance to dietary antigens through development of food-specific intestinal immune reactions and subsequent development of visceral h…

NCT05776914 — Fecal Microbiota Transplantation for IBS

The purpose of this study is to learn the efficacy and safety of fecal microbiota transplantation (FMT) using stool from a donor with low proteolytic activity and containing the bacteria Alistipes putredinis in patients with irritable bowel syndrome (IBS) and high proteolytic activity. Proteolytic activity is the breakdown of proteins into smaller polypeptides or amino acids.

NCT07656623 — Effects of the Multispecies Probiotic Ecologic Barrier in IBS Patients With Upper GI Symptoms and Anxiety, Depression, or Stress

The aim of this clinical trial is to find out whether Ecologic Barrier is effective in supporting the treatment of irritable bowel syndrome (IBS) in adults. The main questions that this trial aims to answer are:

• Does Ecologic Barrier help improve IBS severity when added to standard IBS treatment?
• Does Ecologic Barrier help improve symptoms of anxiety, depression, and stress in patients wit…

NCT06271538 — Evaluation of Efficacy of Skål Pro Powder on Symptoms of Irritable Bowel Syndrome

The objective of this randomized, double-blind, placebo-controlled study is to evaluate the effectiveness of Skal Pro in alleviating symptoms, enhancing stool consistency, improving quality of life, and addressing psychological distress in individuals diagnosed with irritable bowel syndrome (IBS), as compared to those who receive no intervention.

NCT07581756 — Repeated Transcranial Magnetic Stimulation for the Treatment of Diarrhea-Predominant Irritable Bowel Syndrome: A Randomized Clinical Trial

Objectives: This study aims to evaluate the clinical efficacy and safety of repetitive transcranial magnetic stimulation (rTMS) in patients with diarrhea-predominant irritable bowel syndrome (IBS-D), and to explore the potential underlying mechanisms by which rTMS alleviates clinical symptoms in IBS-D patients.

Design: This is a clinical trial that uses clinical symptom scales to assess the th…

NCT06639984 — Psyllium in Pediatric IBS

The goal of this clinical trial is to learn if a fiber (psyllium) can change the way bacteria use fructans (a type of sugar) and whether psyllium can help decrease childhood irritable bowel syndrome (IBS) symptoms when eating fructans. The main questions it aims to answer are:

Aim 1: The effect of psyllium at two doses given with a fructan meal on microbial fructan fermentation (intracolonic p…

NCT06940596 — Exclude or Expose in Irritable Bowel Syndrome: What Works for Whom and How?

This research project will assess how two treatments for irritable bowel syndrome (one dietary and one behavioral) work and for whom. This will be done by assessing moderators (what treatment works for who and in what context) and mediators (how treatment works). Investigators will also assess how the diet and behavioral treatments affect IBS symptoms during treatment. Participants will be rand…

NCT07000383 — Evaluation of the Efficacy and Safety of Gelsectan in the Treatment of Diarrhea-predominant Irritable Bowel Syndrome

This clinical study aims to investigate the effectiveness and safety of Gelsectan, a treatment containing xyloglucan, in adults diagnosed with diarrhea-predominant irritable bowel syndrome (IBS-D) in Vietnam. IBS-D is a common digestive disorder that causes frequent diarrhea along with abdominal pain and bloating, significantly affecting patients’ daily life and wellbeing.

The main goal of the…

NCT07000227 — Mechanism of FODMAP Restriction on FGID Patients

Brief Summary :

The goal of this clinical trial is to investigate the effects of differing FODMAP diets on gut microbiota, gut barrier function, symptom severity, quality of life, and psychological status in FGID patients. The main question it aims to answer is :

How does diets with differing FODMAP content affect the gut microbiota, gut barrier function, symptom severity, psychological statu…

NCT06866106 — Well-being in IBS: Strengths and Happiness (WISH) 2.0

The purpose of this study is to examine the feasibility, acceptability, preliminary effects, and candidate gut-brain mechanisms of an optimized positive psychology (PP) intervention for patients with irritable bowel syndrome (IBS), entitled “WISH,” compared to an educational control intervention.

NCT07646834 — Anxiety and Depression in IBS: A Brain-Gut Axis Study

This study aims to understand how the gut and the brain communicate in people with Irritable Bowel Syndrome (IBS) who also experience anxiety and depression. We want to see if changes in gut bacteria are linked to changes in brain function, and to find potential markers that could help in diagnosis or future treatments.

We are looking for two groups of volunteers aged 18 to 60 years: 1) 100 pa…

NCT07688044 — The Role That Food and Bacteria Play in Generating Abdominal Pain

Irritable Bowel Syndrom (IBS) affects up to five percent of Canadians and has proven difficult to treat. Our research will explore how a type of dietary carbohydrate, called FODMAPS, contributes to chronic abdominal pain in irritable bowel syndrome (IBS). FODMAPs, are poorly digested carbohydrates and removing FODMAPs from the diet relieves abdominal pain in approximately half of IBS patients. …

NCT07584473 — NCWS or IBS/FD in Relatives of CD Patients

Over 50% of non-celiac wheat sensitivity (NCWS) patients are HLA DQ2/DQ8 positive and often have a Celiac Disease (CD) family history. Studies have identified a subgroup of NCWS patients whose clinical and immunological features are closer to CD than to irritable bowel syndrome/functional dyspepsia (IBS/FD) (‘inflammatory subgroup’). The investigators hypothesized that among CD patient’s relati…

NCT07635394 — Efficacy of Pregabalin for Patients With Irritable Bowel Syndrome

To explore the efficacy of pregabalin for patients with irritable bowel syndrome (IBS).

NCT07519395 — A Study to Investigate Abdominal Symptoms With Camlipixant Compared With Placebo in Adults With Irritable Bowel Syndrome - Diarrhea (IBS-D) and Irritable Bowel Syndrome - Mixed (IBS-M)

This study is designed to evaluate the efficacy and safety of camlipixant in adults with IBS-D and IBS-M. The study has two parts. After the first part, some participants will be randomly chosen again to either get a higher dose or stop the drug.

NCT07584278 — Probiotics and Biomarkers in Irritable Bowel Syndrome

The goal of this double-blind parallel-arm randomized controlled trial is to learn if a probiotic supplement (containing a new strain derived from L. reuteri) alters outcomes related to symptom severity and transit time in adults with irritable bowel syndrome (IBS). The main question it aims to answer is:

Does the probiotic alter IBS symptom severity?

Researchers will compare the probiotic to…

NCT07545772 — A Study of Brenipatide (LY3537031) in Participants With Irritable Bowel Syndrome-Constipation (IBS-C)

The purpose of this study is to evaluate how well brenipatide (LY3537031) is tolerated what side effects may occur, and the safety and efficacy in participants with Irritable Bowel Syndrome-Constipation (IBS-C). The study drug will be administered subcutaneously (SC) (under the skin) when compared with placebo.

The study will last approximately 35 weeks.

NCT07591584 — A Study Evaluating the Impact of Regular FODMAP-targeting Digestive Enzyme Blend Use on Gastrointestinal Symptoms in Individuals With Self-Reported Bloating

This study is a randomized, double-blind, placebo-controlled, within-individual crossover trial designed to assess the impact of regular use of a consumer-grade FODMAP-targeting digestive enzyme blend (FODZYME®) on gastrointestinal symptoms in adults with self-reported bloating.1

The study’s rationale is based on the fact that fermentable carbohydrates (FODMAPs) are often poorly absorbed and c…

NCT07545759 — A Study of Brenipatide (LY3537031) in Participants With Irritable Bowel Syndrome-Diarrhea (IBS-D)

The purpose of this study is to evaluate how well brenipatide (LY3537031) is tolerated, what side effects may occur, and the safety and efficacy in participants with Irritable Bowel Syndrome-Diarrhea (IBS-D). The study drug will be administered subcutaneously (SC) (under the skin) when compared with placebo.

The study will last approximately 35 weeks.

NCT07494968 — Defining Objective Markers of Compliance for Dietary Therapies in IBS

This research will investigate if a specific marker in your stool or urine can be used to track changes in your carbohydrate intake including fructo-oligosaccharide and mannitol intake

NCT05972317 — The Stool Microbiome of Treated and Untreated IBS (Irritable Bowel Syndrome) Patients

Irritable bowel syndrome (IBS) is considered the most common gastrointestinal disorder in humans, with an estimated global prevalence of 11%-20% of all humans. Alterations in the gut microbiome are at the center of IBS, and microbiome-induced volatile metabolites in response to dietary exposures is believed to drive a downstream impact on susceptible hosts, thereby driving the disease. However,…

Active, Not Recruiting

NCT05643534 — Study to Assess Safety and Efficacy of Tenapanor for Treatment of IBS-C in Pediatric Patients 12 to Less Than 18 Years

This is a randomized, double-blind, placebo-controlled study to assess the efficacy, safety and tolerability of tenapanor (25 mg and 50 mg) in pediatric patients (≥12 and <18 years old) with IBS-C when administered twice daily (BID) for 12 consecutive weeks.

NCT06553547 — 4-Week, Multi-center Dose-Ranging Study for the IBS-C in Pts. 6 to <12 Yrs

This is a randomized, double-blind, placebo-controlled dose-ranging study to assess the safety and efficacy of tenapanor for treatment of the IBS-C in pediatric patients 6 to less than 12 year old.

Not Yet Recruiting

NCT07543354 — Personalized Therapy of Long-term Low FODMAP in IBS Treatment: Role of Mobile Application and “Microbiota-gut-brain” Axis

The purpose of this study is to evaluate the effectiveness of a mobile application (app) in helping clinicians and dietitians provide personalized low-FODMAP diet (LFD) therapy for patients with Irritable Bowel Syndrome (IBS). The study also aims to explore the potential biological mechanisms behind the clinical outcomes of this dietary intervention.

Participants diagnosed with IBS will be rec…

NCT07574320 — Effect of Ramosetron in Patients With Diarrhea Predominant Irritable Bowel Syndrome

Irritable bowel syndrome (IBS) tends to be a lifelong disorder and it is often frustrating to both patients and physicians. This study aim of improving symptom control, reducing healthcare burden and upgrading the quality of life of patient with diarrhea predominant IBS-D.

Patients of both sex of age group 18-65 years attending gastroenterology outpatient department Dhaka Medical College Hospi…

NCT07560345 — Effect of Neurodynamic Mobilization of Vagus Nerve on Irritable Bowel Syndrome in Women

goal of this interventional study to investigate the effect of neurodynamic mobilization of vagus nerve on irritable bowel syndrome in women. The main question it aims to answer is: is there an effect of neurodynamic mobilization of the vagus nerve on irritable bowel syndrome? The intervention will include neurodynamic mobilization of vagus nerve sessions ,Participants will receive the treatmen…

NCT07610434 — Phase III Clinical Trial of Changji’an Capsules in the Treatment of Irritable Bowel Syndrome With Predominant Diarrhea (Liver-Qi Invading Spleen Syndrome)

This trial is a randomized, double-blind, placebo-controlled, parallel-group, multicenter Phase III clinical trial. Its purpose is to evaluate the efficacy and safety of Changji’an Capsules in subjects with diarrhea-predominant irritable bowel syndrome (liver-qi invading spleen syndrome) after 8 weeks of treatment.

NCT07655375 — Study Evaluating the Effect of UCB8600 on Mast Cell Activation in the Human Gut

Study evaluating the effect of UCB8600 on mast cell activation in the human gut:

IBS is a disease characterized by abdominal pain and a change in stool. Treatment is limited to an adapted life style, dietary changes and medication to lessen cramps (spasmolytica), all of which have seen limited to no clinical success.

Recently, we were able to demonstrate that mast cells play an active role in…

NCT07688161 — Clinical Efficacy and Safety of Jingfang Granules in Treating Diarrhea-Predominant Irritable Bowel Syndrome With Cold-Dampness Disturbing Spleen Syndrome

This prospective, open-label, randomized controlled clinical trial aims to evaluate the clinical efficacy and safety of Jingfang Granules in the treatment of diarrhea-predominant irritable bowel syndrome (IBS-D) with cold-dampness encumbering the spleen syndrome, and to explore its potential mechanisms of action. A total of 106 patients with IBS-D of cold-dampness encumbering the spleen syndrom…

NCT07676136 — A Pilot Study Using Gut-Directed Hypnotherapy for Hospitalized Patients

The purpose of the study is to compare the effectiveness of recorded gut-directed hypnosis to an educational recording in people with chronic problems in their gastrointestinal (GI) system. Patients who are hospitalized at Stanford Hospital for worsening pain and/or nausea will be considered for enrollment.

NCT07662083 — Trans Auricular Vagal Nerve Stimulation in Patients With IBS-C

This study evaluates the efficacy and safety of transcutaneous auricular vagus nerve stimulation (ta-VNS) in adults with constipation-predominant irritable bowel syndrome (IBS-C). Participants will be randomized to receive either active or sham stimulation using a non-invasive auricular device over a 60-day period.

The primary objectives are to assess changes in symptom severity and quality of…

NCT06706778 — The Mechanism Underlying the Analgesic Effect of the Music of IBS Pain

The proposed pilot study aims to assess the underlying mechanisms of the MBI on IBS pain and the feasibility of using novel technology in the outcome measurements. The specific aims of this pilot mechanistic clinical trial are to:

1. . identify the mechanisms underlying the impact of MBI on IBS-related pain, stress responses, quantitative pain sensitivity, and gut microbiome profiles.
2. . eva…

NCT07600047 — A Well-Being Intervention for People With IBS

The purpose of this randomized behavioral clinical trial is to examine whether a well-being intervention can improve both psychological well-being and physical outcomes in adults with Irritable Bowel Syndrome (IBS). The study aims to assess whether this intervention decreases anger, anxiety, and depression; increases self-esteem, empathy, and hope; and improves quality of life indicators such a…

Enrolling by Invitation

NCT07345377 — Study on Treatment Mechanisms and Efficacy Prediction of Individualized Transcranial Magnetic Stimulation in Adults With Irritable Bowel Syndrome Using Multimodal MRI and High-Throughput Sequencing

The goal of this clinical trial is to explore if “individualized repetitive Transcranial Magnetic Stimulation (TMS)” works to improve symptoms in adults with Irritable Bowel Syndrome (IBS). It also aims to learn how this treatment works (by looking at links between the brain, gut, and gut bacteria) and if tests like brain scans or gut bacteria checks can show if the treatment will work for a pe…

NCT05905926 — Safety Study of Tenapanor for the Treatment of Pediatric Patients (6 to Less Than 18 Years Old) With IBS-C

Open-label long-term safety study of tenapanor in pediatric patients with IBS-C.

NCT06657001 — Enabling Microbiomics- Driven Personalized Nutrition

The goal of this observational research study is to determine how diet contributes to various gastrointestinal related conditions.

The main question investigators aim to answer is:

Are host genetics, diet, and microbiome all important determinants of GI disorders, and how their relative contribution varies among individuals and populations.

Completed Trials

NCT00742118 — Effects of the Soluble Mediators of Mastocytes on the Intestinal Epithelial Barrier and of the Enteric Nervous System During the Syndrome of the Irritable Bowel

Patients with irritable bowel syndrome (IBS) have increased intestinal permeability. In addition, mucosal soluble mediators are involved in the pathophysiology of pain in IBS. The investigators aimed to investigate:

1. paracellular permeability in colonic biopsies of IBS patient
2. the ability of soluble factors from colonic biopsies to reproduce in vitro these alterations

NCT02136745 — Effects of Relaxation Response Mind-body Intervention in Patients With IBS and IBD

In this pilot study, the investigators examined whether a relaxation response mind-body intervention could be effectively delivered to mixed groups of IBS and IBD patients and determined the effects of the intervention on quality of life, inflammatory markers, and gene expression using transcriptional profiling.

NCT04132804 — Effect of Tai Chi as Treatment for IBS-C

The purpose of the study is to evaluate the efficacy of Tai Chi practice in reducing symptoms of Irritable Bowel Syndrome with Constipation (IBS-C).

NCT04806386 — The Role of Fiber in the Prevention and Treatment of Fecal Incontinence

The purpose of this study is to determine the effect of fiber supplementation on the fecal metagenome and metabolome in relation to symptoms and anorectal physiology in post-menopausal women with irritable bowel syndrome with diarrhea suffering from liquid stool fecal incontinence (FI.)

NCT04855799 — GI Permeability Change in Response to Aquamin®

This trial is being completed to learn about how Aquamin® affects gastrointestinal permeability, or the control of material passing from inside the gastrointestinal tract through the gut wall into the rest of the body, in people with ulcerative colitis (UC), Irritable Bowel Syndrome with diarrhea (IBS-D), and in healthy individuals.

NCT06268717 — GI Alpha-Gal Study

This is a double-blind, crossover food challenge study using pork with and without α-gal in patients with a clinical diagnosis of gastrointestinal (GI)- α-gal allergy, and to investigate the pathophysiology underlying their symptoms.

NCT04666155 — MOWOOT Device Treatment for Adults With Chronic Constipation

The primary objective is to compare the effectiveness of the experimental Intermittent Colonic Exoperistalsis (ICE) treatment with MOWOOT, with the active control of trans-anal irrigation (TAI) as standard-of-care. The secondary objectives are to further compare the ICE treatment with MOWOOT to the TAI standard-of-care clinically and economically.

NCT07607132 — Digitally Delivered Dietary Treament for Adult Patients With Irritable Bowel Syndrome: A Pilot Study

Two carbohydrate reduced diets, the low FODMAP diet (LFD) and low-carbohydrate diet (LCD), have in randomized controlled studies shown efficacy in relieving symptoms in patients with Irritable Bowel Syndrome (IBS), but access to trained dieticians is limited. Digital delivery may offer a convenient, cost-effective and scalable solution. This pilot study aims to evaluate the effectiveness and fe…

NCT06221111 — Comparison of Rimegepant and Placebo for Pain in IBS

The primary aim of this study is to evaluate the efficacy of rimegepant on abdominal pain scores in participants with non-constipation IBS.

NCT06219707 — Electro-acupuncture for Irritable Bowel Syndrome With Constipation

The aim of the clinical trial is to evaluate the efficacy and safety of electro-acupuncture for irritable bowel syndrome with constipation (IBS-C) patients. 60 IBS-C patients will be randomized and allocated to either the electro-acupuncture arm or the sham acupuncture arm. We hypothesize that electro-acupuncture would result in superior symptom improvement compared to sham acupuncture. In addi…

NCT07576634 — Effects of Standardized Boswellia Carterii Extract on Irritable Bowel Syndrome Patients

Irritable bowel syndrome (IBS) is a common condition that affects the stomach and intestines. It can cause abdominal pain, bloating, diarrhea, constipation, and changes in bowel habits, which may reduce a person’s quality of life. Many people with IBS do not achieve complete symptom relief with standard treatments.

The purpose of this study is to evaluate whether a standardized Boswellia extra…

NCT07619573 — EFFECT OF A DİETİTİAN-SUPERVİSED LOW-FODMAP DİET VERSUS STANDARD WRİTTEN ADVİCE ON GASTROİNTESTİNAL SYMPTOMS AND INFLAMMATORY BİOMARKERS İN IRRİTABLE BOWEL SYNDROME: A RANDOMİZED CONTROLLED TRİAL

Background:

Irritable Bowel Syndrome (IBS) is the most prevalent functional gastrointestinal (GI) pathology among GI disorders. Various dietary interventions, particularly the low-FODMAP diet, are employed to alleviate IBS symptoms.

Study Population & Design:

This study will include 78 adult patients, aged 18-65, diagnosed with IBS according to Rome IV criteria at the Biruni University Facu…

NCT07465562 — Galactol® Enzyme Supplement for Post-Prandial Abdominal Bloating in Irritable Bowel Syndrome

This multicenter, randomized, controlled clinical trial aims to evaluate the efficacy and safety of a dietary supplement containing a combination of digestive enzymes (alpha-galactosidase, beta-galactosidase, and prolyl-endopeptidase) in reducing post-prandial abdominal bloating in adults diagnosed with irritable bowel syndrome (IBS).

Participants will be randomly assigned in a 1:1 ratio to re…