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Irritable Bowel Syndrome clinical trials

View clinical trials related to Irritable Bowel Syndrome.

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NCT ID: NCT06325345 Not yet recruiting - Clinical trials for Irritable Bowel Syndrome

RCT of Gut-directed Hypnotherapy in Ehlers-Danlos Syndromes and Generalized Hypermobility Spectrum Disorders

Start date: April 1, 2024
Phase: N/A
Study type: Interventional

This randomized, controlled trial (RCT) will evaluate the effectiveness of gut-directed hypnotherapy for management of Irritable Bowel Syndrome (IBS) in individuals diagnosed with Ehlers-Danlos Syndromes or Generalized Hypermobility Spectrum Disorders (G-HSD). Consenting patients recruited from the Toronto General Hospital GoodHope Ehlers-Danlos Syndrome Clinic will be randomly assigned to one of two groups: (1) standard medical therapy or (2) standard medical therapy plus eight sessions of gut-directed hypnotherapy. The main questions this study will answer are: 1. Is gut-directed hypnotherapy an efficacious treatment for IBS symptoms among individuals with EDS or G-HSD? 2. Does gut-directed hypnotherapy improve other gut symptoms, quality of life, visceral sensitivity, and emotional distress? 3. Is the activity of the parasympathetic nervous system (i.e. the body's "rest and digest" system) associated with IBS symptoms or treatment outcomes among individuals with EDS or G-HSD? All participants will be asked to meet with a gastroenterologist three times as part of the standard medical therapy. At each physician visit, they will undergo electrocardiogram recording and complete self-report measures of gastrointestinal symptoms, quality of life, visceral sensitivity, and emotional distress. Participants randomized to receive gut-directed hypnotherapy will also eight weekly remotely-delivered sessions of gut-directed hypnotherapy delivered by a trained behavioral therapist in between the first and second physician visit. At each session of gut-directed hypnotherapy, a voluntary, pleasant, and dream-like state of deep relaxation will be induced and suggestions made for greater relaxation, abdominal comfort, and normalization of gut function. The first session will also include 30 minutes of education on the nature of the gut-brain axis and hypnotherapy prior to hypnosis. Researchers will compare study groups to see if participants who engaged in gut-directed hypnotherapy had greater improvement in IBS symptoms, other gastrointestinal symptoms, quality of life, visceral sensitivity, and emotional distress. Exploratory analyses will examine the relationships among heart rate variability, an index of parasympathetic nervous system activity, and study outcomes.

NCT ID: NCT06321237 Not yet recruiting - Clinical trials for Irritable Bowel Syndrome

Influence of Ear Vagus Nerve Stimulator on Patients With IBS

Start date: April 1, 2024
Phase: N/A
Study type: Interventional

Irritable bowel syndrome (IBS) is a very common functional digestive disorder characterized by chronic abdominal pain and altered bowel habits in the absence of biological or structural abnormalities. In the field of IBS, effective drug treatments are very limited, and patients are urgently looking for alternatives, including probiotics, hypnotherapy, osteopathy, dietary changes, and fecal microbiota transplants. In recent years, with the continuous elucidation of vagus nerve mechanisms, IBS patients are increasingly interested in bioelectrical regulation, and these patients are often skeptical of traditional drug treatment and believe that drugs are prone to side effects. For several reasons, vagus nerve stimulation (VNS) may be a promising option for improving IBS symptoms. In this experiment, the portable ear nail stimulator produced by Ruishen Medical can accurately stimulate the ear nail, transdermal stimulation of the ear vagus nerve, and give full play to its therapeutic effect. Therefore, the purpose of this clinical trial is to use ear nail stimulator in patients with IBS to explore whether it has therapeutic effects on patients with IBS. To explore the influence of tVNS therapy on irritable bowel syndrome compared with drug therapy, it is hoped that the use of TVNS therapy can reduce the use of related drugs, or even replace drugs. This study intends to recruit a group of patients with irritable bowel syndrome to use the portable ear nail stimulator, (1) to observe whether the symptoms of irritable bowel syndrome patients are improved; (2) To analyze the changes of intestinal microbes in patients with IBS; (3) Verify whether the level of intestinal inflammation is reduced and discover metabolic markers in the intestine.

NCT ID: NCT06319729 Not yet recruiting - Clinical trials for Constipation-predominant Irritable Bowel Syndrome

A Chinese Herbal Medicine for IBS-C

CDD2105RCT1
Start date: March 25, 2024
Phase: Phase 2
Study type: Interventional

This double-blind, placebo-controlled randomized pilot clinical trial will test the hypothesis that granules of CDD-2105, a Chinese herbal medicine formula, will have efficacy in alleviating constipation and abdominal pain in individuals with IBS-C. Participants (n=78) will be randomly assigned to the treatment or placebo group in a 1:1 ratio, followed by 4 weeks of intervention and 4 weeks of follow-up.

NCT ID: NCT06318572 Recruiting - Clinical trials for Irritable Bowel Syndrome

Development of Self-administrable Psychological Intervention Programs Supported by New Technologies as a Treatment for Patients With Functional Digestive Disorders.

Start date: March 9, 2023
Phase: N/A
Study type: Interventional

Disorders of gut-brain interaction (DGBI) are produced by disturbances in the interplay between the gut and the central nervous system. Several psychological factors like anxiety, depression and altered coping are over-represented in these disorders. Recent surveys have shown that DGBI affect up to 40 % of the general population. Psychological interventions like cognitive behavioral therapy and hypnosis have been shown to be beneficial for managing these disorders. However, access to psychological interventions is very limited due to lack of resources to treat these very frequent conditions. OBJECTIVE: To determine the effects of psychological interventions using specifically developed therapeutic programs based on virtual reality, for telematic use at home, on symptoms severity, comorbidities, visceral sensitivity and intestinal dysbiosis in patients with DGBI. METHODOLOGY: After development of a program of psycho-education on DGBI using interactive immersion by means of virtual reality (VR) a randomized clinical trial will be developed. Consecutive patients will be randomized 1:1 to active treatment or placebo. In each patient in the active treatment group a session of psychoeducation using specifically developed VR-video leaded by a gastroenterologists, will be followed by telematic weekly group sessions of psycho-education leaded by a psychologist. During the 6 weeks of the treatment period patients will be instructed to perform self-administrable sessions of psychotherapy at home (by means VR). Patients in the placebo group willl take a placebo capsule daily. OUTCOME MEASURES. In all patients, severity of symptoms (primary outcome), QoL, somatic and psychological comorbidities (using specific questionnaires), visceral sensitivity (by means of a barostat) and microbiota analysis, will be performed before and at the end of the treatment period. Symptom severity will be assess also in follow-up phone calls at 3 and 6 months.

NCT ID: NCT06297785 Recruiting - Clinical trials for IBS - Irritable Bowel Syndrome

Online, Gut-directed Hypnotherapy for Patients With Irritable Bowel Syndrome (IBS)

Start date: October 17, 2022
Phase: N/A
Study type: Interventional

Adult IBS patients with symptoms refractory to standard medical treatment will receive online nurse-administered, gut-directed hypnotherapy in groups. The primary outcome measure was change in gastro-intestinal symptom severity.

NCT ID: NCT06297421 Not yet recruiting - Clinical trials for Irritable Bowel Syndrome With Diarrhea

A Study to Evaluate the Efficacy and Safety of Homogenized Prescription Enterobacteria Capsule in Patients With IBS-D

Start date: May 2024
Phase: Phase 2
Study type: Interventional

The purpose of this study is to evaluate the efficacy and safety of Homogenized Prescription Enterobacteria Capsule compared with placebo in the treatment of participants with irritable bowel syndrome with diarrhea.

NCT ID: NCT06291272 Recruiting - Colon, Irritable Clinical Trials

Effect of Methylcellulose or Psyllium on Fermentation of inUlin Assessed USing MRI

RUFUS
Start date: October 15, 2023
Phase: N/A
Study type: Interventional

Our challenge is to understand how fibre interacts with whole-gut function to alter colonic fermentation of FODMAPs. We will exploit the recent availability of a range of food grade modified celluloses which can form gels at body temperature to perform human studies to explore whether the beneficial effect of psyllium is unique or will be found with all gelling substances (4). We are currently performing the COCOA2 study using a modified methylcellulose (results awaited). We now wish to perform a pilot study to image what happens in the colon when methylcellulose is ingested to enable us to plan the next step in our research programme.

NCT ID: NCT06291038 Not yet recruiting - Clinical trials for Irritable Bowel Syndrome

Efficacy of Glutamine Supplementation in Patients Suffering From Irritable Bowel Syndrome With Impaired Intestinal Permeability

MISSISIIPI
Start date: July 1, 2024
Phase: N/A
Study type: Interventional

Irritable bowel syndrome (IBS) affects approximately 5% of the general population and remains a daily problem in the practice of clinicians with inconsistent effectiveness of treatments while patients' expectations are high. One of the functional abnormalities described during IBS is increased intestinal permeability. This increase in intestinal permeability is primarily present in the diarrheal subtype (IBS-D) and can be measured using the lactulose/mannitol test. Glutamine is a non-essential amino acid which regulates numerous metabolic pathways, and which plays a key role in the intestine because it is the preferential substrate of enterocytes and immune cells. Ex vivo, glutamine is able to restore the expression of tight junction proteins in patients suffering from IBS-D. On the other hand, glutamine supplementation is capable of reducing abdominal pain and restoring intestinal permeability disorders in a subgroup of patients with intestinal permeability disorder (post-infectious IBS-D). Our working hypothesis would be that all patients suffering from IBS with permeability disorder, measured by the lactulose/mannitol test, could benefit from oral glutamine supplementation.

NCT ID: NCT06288672 Recruiting - Clinical trials for Irritable Bowel Syndrome

IBS Skin Patch Test Food Allergy Study

Start date: August 15, 2023
Phase: N/A
Study type: Interventional

Participants with IBS are skin patch tested (no needles) to 80 different foods and food additives, compounded for patch testing, in search of food allergies. The testing requires 3 office visits within a 4 or 5 day period. The patches are taped to the back at Visit #. At Visit #2 48 hours later, the patches are removed from the skin and the outside border of each patch is marked with a felt tip marker. At Visit #3 (final visit) 1 or 2 days later, the patch test reading is performed by the doctor-investigator. An allergy is identified as a small red mark where the food was in contact with the skin for 48 hours. Those participants found to have food allergies are then placed on an avoidance diet (no calorie restriction) for 16 weeks where they either avoid eating the food(s) to which they are allergic (the "true" avoidance diet) or food(s) to which the testing did not show an allergy (this is called the "sham" avoidance diet). There is a 50/50 chance of going on either avoidance diet. The avoidance diet is assigned in such a way that neither the participant or the doctor-investigator knows which diet is being followed. After the 16 weeks, the participants answers a brief online questionnaire that asks about the IBS symptoms while following the avoidance diet. After the 16 week avoidance diet and final questionnaire are completed, those participants who were on the sham diet will be told of their true food allergies which they may try avoiding on their own.

NCT ID: NCT06281600 Recruiting - Clinical trials for Irritable Bowel Syndrome

An Intervention Study Using HMOs to Improve IBS Symptoms

GUT-HEAL-IBS
Start date: February 20, 2024
Phase: N/A
Study type: Interventional

There is now strong evidence implicating the human gut microbiota in many gastrointestinal diseases, including irritable bowel syndrome (IBS). Importantly, this enteric population is susceptible to dietary intervention and represents an exciting target for the prevention and treatment of gut mediated disorders. This study will investigate microbial components and activities associated with the gut microbiome, using a global systems biology approach to explore the capacity of a human milk carbohydrate intervention in modulating this microbial community to target IBS, with the primary objective of improving IBS symptoms. IBS is a highly prevalent gastrointestinal (GI) disorder with significant negative impact on quality of life of patients and high healthcare costs. Although prognosis of IBS is benign, it is a disorder that poses a considerable burden on the individual sufferer and society. Patients typically present with chronic abdominal pain and an altered bowel habit, frequently accompanied by bloating and distension. Often, IBS will afflict sufferers for life, with flares of activity followed by periods of remission. Incidence commonly peaks in the third and fourth decades of life. IBS is suggested to be a disorder of gut-brain interaction, and alterations of the microbiota-host interactions at the mucosal border may cause symptoms such as those previously mentioned. Therefore, microbiota-targeted interventions may benefit some people with IBS by beneficially modulating the gut microbiome. Several studies have confirmed that prebiotics, such as galactooligosaccharides (GOS), are able to successfully stimulate gut bifidobacteria and alleviate symptoms in IBS. Prebiotics are defined as "a substrate that is selectively utilised by host microorganisms conferring a health benefit" [8]. These studies suggest that prebiotics may have potential as therapeutic agents in IBS. Breastmilk is known to play a crucial role in the development of infants, providing key nutrients and immunological compounds important for initial protection against pathogens [9]. Among these compounds, human milk oligosaccharides (HMOs) represent the third most important component of breastmilk after lipids and lactose. HMOs have also been investigated for potential health benefits in adults, including their potential role as prebiotics for improved gut microbiota modulation. Studies looking specifically at HMO interventions in humans with IBS are sparse. These include a phase II, parallel, RCT in 58 IBS volunteers by Iribarren et al. and an open-label trial with 245 IBS participants from 17 sites across USA by Palsson et al.. None have been sufficiently powered to a degree which could influence clinical practice, but crucially tolerability and safety profiles of HMOs investigated, to date, have been consistently high. Using the global systems biology approach not yet applied to this research question, a pre-competitive approach to selecting a candidate HMO, and a crossover feasibility trial design, the investigators hope to forge a new direction in establishing the merits of HMO use in IBS. This study will look specifically at patients with all IBS subtypes, an area where there is a real therapeutic gap and clinical need for safe, effective therapy to improve quality of life. Participants will be randomly allocated to be given either the HMO or a placebo, with neither the patient nor the researchers knowing which they are receiving (randomised and double blind design). They will take this HMO or placebo for 28 days (randomly distributed), and then stop taking it in a 'washout' period of 28 days, allowing the gut microbiota to return to baseline. Then, the participants will take the other intervention (placebo or prebiotic, whichever they did not take in the first half of the study) for 28 days, then have a further washout period of 14 days. The study will then be over. With this proposal, the aim is to explore how HMOs affect the gut microbiota and whether they can do so in a manner that positively influences patients with IBS. The investigators also hope to develop molecular profiling as part of a research toolkit for gut microbiome-based HMO supplement studies.