Clinical trials
Irritable Bowel Syndrome - Diarrhoea clinical trials
Below are recruiting irritable bowel syndrome - diarrhoea clinical trials, each written for real people, not researchers. We’re tracking 104 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07261826Recruiting
Long-term effects of fecal microbiota transplant
This study looks at how well fecal microbiota transplantation (FMT) works over time and checks its safety. If you have received at least one FMT for a qualifying condition, you may be able to participate.
Shanghai, Shanghai MunicipalityAges 3 years+ - NCT06247046RecruitingPhase 3
Probiotic powder for IBS-D (SK08) trial
This study tests a new probiotic powder (SK08) to see if it reduces belly pain and diarrhea in people with IBS-D (irritable bowel syndrome with diarrhea). It lasts several months and involves taking the study powder twice a day.
Wuxi, JiangsuAges 18–70 - NCT07235228Recruiting
Synbiotic supplement for irritable bowel syndrome
This trial tests whether a synbiotic (a mix of probiotics and prebiotics) called Vivatlac can improve gut health in people with moderate to severe irritable bowel syndrome (IBS). If you have IBS and are not already taking probiotics or antibiotics, you may be able to join.
JarocinAges 18–65 - NCT07222943Recruiting
Guided Imagery App for Kids with Stomach Pain
This study tests a mobile app that uses guided imagery (a relaxation technique using your imagination) to help children ages 7–12 with stomach pain disorders. The goal is to see if the app is easy to use and helpful for managing pain.
Austin, TexasAges 7–12 - NCT06912828Recruiting
Genes and diet for IBS
This trial is studying whether your genes can predict how well a special diet will help your IBS symptoms. If you have moderate to severe IBS and no other diet-related conditions, you may be able to take part.
AthensAges 18–65 - NCT07094035Recruiting
Green tea and probiotics for constipation-predominant IBS
This study tests whether a supplement containing green tea extract and probiotics can improve bowel function in people with irritable bowel syndrome (IBS) that mainly causes constipation. If you have chronic constipation and abdominal pain, this could help.
NaplesAges 18–70 - NCT07000227Recruiting
Low FODMAP diet study for IBS or functional dyspepsia
This study looks at how a low FODMAP diet affects people with irritable bowel syndrome (IBS) or functional dyspepsia (FD). It aims to understand why this diet helps some patients and may offer a way to manage your symptoms.
Kuala Lumpur, Kuala LumpurAges 18 years+ - NCT06923800Recruiting
Exercise and Diet Advice for Fibromyalgia and IBS
This study tests whether combining exercise with dietary advice can help people who have both fibromyalgia and irritable bowel syndrome (IBS). It aims to see if this approach improves symptoms and quality of life.
Castellana Grotte, BariAges 30–65 - NCT06866106Recruiting
Well-being in IBS: A phone program for strengths and happiness
This study tests a program that helps people with IBS focus on their strengths and happiness through phone sessions. It aims to see if this approach can improve well-being and manage IBS symptoms.
Boston, MassachusettsAges 18 years+ - NCT06847360Recruiting
Home-based ear stimulation for IBS pain
This trial tests a gentle, non-invasive ear stimulation device (taVNS) used at home to reduce pain from Irritable Bowel Syndrome (IBS). It might help if you have moderate pain most days.
New Haven, ConnecticutAges 18–29 - NCT06727422RecruitingPhase 2
Rifaximin plus NAC for IBS with diarrhea
This trial tests whether a combination of two medications—rifaximin (a gut antibiotic) and NAC (a supplement that helps break down mucus)—can reduce belly pain and diarrhea in people with IBS whose symptoms are not well controlled. It may be an option if other treatments haven't worked well enough.
Los Angeles, CaliforniaAges 18 years+ - NCT06684470RecruitingEarly Phase 1
Combining a low-FODMAP diet with medication for IBS-D
This trial tests if a special diet (low-FODMAP) combined with a medication (mirtazapine) can improve IBS with diarrhea symptoms. It is for adults who have not tried these treatments before.
Jacksonville, FloridaAges 18–70 - NCT06639984RecruitingPhase 2
Psyllium for kids with IBS
This study tests if psyllium, a fiber supplement, helps reduce belly pain and other symptoms in children with irritable bowel syndrome (IBS). It may be an option if standard treatments haven't worked well.
Durham, North CarolinaAges 12–17 - NCT06583395Enrolling by invitation
Meditation retreat study with fitness tracker
This trial studies people attending a 7-day meditation retreat to see how meditation affects well-being. You will wear a fitness tracker and answer surveys.
Palm Desert, CaliforniaAges 21 years+ - NCT06369753Recruiting
Study on visible belly swelling after meals
This study looks at people whose belly visibly swells after eating. The goal is to understand this condition and track symptoms over time.
Los Angeles, CaliforniaAges 18–80 - NCT06288672Recruiting
Skin patch test for food allergies in IBS
This study tests whether a skin patch can help identify food allergies in people with irritable bowel syndrome (IBS) whose symptoms are not well controlled. It involves avoiding certain foods and using patches on your back to see if you react.
North Wales, PennsylvaniaAges 18 years+ - NCT05972291Recruiting
Study gut changes in Gulf War illness with chronic stomach symptoms
This study looks at what’s driving Gulf War illness, focusing on gut symptoms like belly pain, diarrhea, and bloating. It may help researchers test approaches aimed at gut barrier function in eligible veterans.
Memphis, TennesseeAges 18–65 - NCT05905926Enrolling by invitationPhase 3
Tenapanor safety study for teens with constipation-predominant IBS
This trial checks the safety of tenapanor in children and teens (ages 6 to under 18) with IBS-C. It is only for people who finished a previous related study and agreed to continue follow-up.
Foley, AlabamaAges 6–18 - NCT05796388Recruiting
Virtual reality and linaclotide for IBS with constipation
This study tests whether virtual reality (VR) plus linaclotide can improve symptoms and quality of life in adults with IBS-C (IBS with constipation). You may be asked to use VR and take a study medicine, while doctors check that your IBS diagnosis fits strict criteria.
Jacksonville, FloridaAges 18–70 - NCT05808036Recruiting
Test a diet app for IBS symptoms using the DOMINO diet
This trial studies whether a specific diet plan delivered through a phone app (the DOMINO diet) can improve symptoms in people with irritable bowel syndrome (IBS). It may help by changing what you eat to reduce gut symptoms, compared with standard care rules in the study.
LeuvenAges 18–70 - NCT05776914RecruitingPhase 2
Fecal transplant to treat moderate to severe IBS symptoms
This trial tests whether putting stool (fecal microbiota) from a donor into your bowel can improve symptoms in people with IBS who are not IBS-C. It may help by changing the gut bacteria that can influence IBS symptoms.
Rochester, MinnesotaAges 18–70 - NCT05573542Enrolling by invitation
Study early Parkinson signs in people with IBS
This study looks for early clues of Parkinson’s disease in people who have IBS (irritable bowel syndrome), and compares them with people without IBS. The goal is to understand whether gut symptoms or test results can help spot Parkinson’s earlier.
ÖrebroAges 18–85 - NCT05519683RecruitingPhase 2/Phase 3
Home electrical stimulation for constipation IBS pain
This trial tests whether a home device that uses mild skin electrical stimulation can reduce belly pain from IBS with constipation. It also checks whether the treatment is safe and helpful for symptom relief over the study period.
Ann Arbor, MichiganAges 18 years+ - NCT04974593RecruitingPhase 3
Test breath testing to guide a lactose-free diet in IBS
This trial studies whether a breath test (hydrogen/methane lactose testing) can predict who with IBS will improve on a lactose-free diet. If you have moderate-to-severe IBS and regularly eat lactose-containing foods, the test result may help tailor your diet approach.
Jette, Brussels CapitalAges 18–75
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Common questions
- Are there clinical trials for irritable bowel syndrome - diarrhoea?
- Yes. Clin2 currently lists 104 recruiting irritable bowel syndrome - diarrhoea studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a irritable bowel syndrome - diarrhoea trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a irritable bowel syndrome - diarrhoea trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.