Clinical trials
Diarrhea-predominant Irritable Bowel Syndrome clinical trials
Below are recruiting diarrhea-predominant irritable bowel syndrome clinical trials, each written for real people, not researchers. We’re tracking 10 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06612411RecruitingEarly Phase 1
Testing a probiotic for diarrhea-predominant IBS
This trial tests whether a specific probiotic (Bacillus subtilis) can help relieve symptoms in people with diarrhea-predominant irritable bowel syndrome (IBS). The study also looks at whether the probiotic works by increasing a natural chemical called hypoxanthine in the body.
NanjingAges 16–80 - NCT06737666RecruitingPhase 1
Tong-Xie-Yao-Fang for Diarrhea-Predominant IBS
This trial tests an herbal formula called Tong-Xie-Yao-Fang for people with diarrhea-predominant irritable bowel syndrome (IBS-D). It aims to see if the treatment helps symptoms and how it works. Healthy volunteers are also needed for comparison.
Beijing, Beijing MunicipalityAges 18–70 - NCT06801184Recruiting
Gut bacteria study for constipation-predominant IBS with methane
This study looks at the gut bacteria in people with irritable bowel syndrome (IBS) who have constipation and produce high levels of methane gas. It aims to understand how methane relates to symptoms and may guide future treatments.
LyonAges 18 years+ - NCT06211062RecruitingPhase 2
Probiotics for chronic fatigue syndrome with IBS
This study tests whether a specific mix of probiotics can help people with chronic fatigue syndrome (ME/CFS) who also have irritable bowel syndrome (IBS). It's a small trial to see if improving gut health can ease symptoms.
Fort Lauderdale, FloridaAges 45–70 - 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+ - NCT06960369RecruitingPhase 1
Brain stimulation and probiotics for diarrhea-predominant IBS
This trial tests whether combining a type of brain stimulation (repetitive transcranial magnetic stimulation) with a probiotic tablet can help people with diarrhea-predominant irritable bowel syndrome. It aims to improve symptoms by targeting both the brain and the gut.
Suzhou, JiangsuAges 18–70 - NCT07000383Recruiting
Gelsectan for diarrhea-predominant IBS
This trial tests if Gelsectan, a dietary supplement, can safely reduce diarrhea and abdominal pain in people with diarrhea-predominant irritable bowel syndrome (IBS-D). It may be a new option for managing your symptoms.
Ho Chi Minh City, District 5Ages 18 years+ - NCT07168434RecruitingPhase 3
Yeast supplement for irritable bowel syndrome (IBS)
This trial tests if a yeast supplement called Saccharomyces boulardii can help people with irritable bowel syndrome (IBS), except for those with constipation as their main symptom. Participants take the supplement and see if their symptoms improve.
BragaAges 18–65 - NCT07581756Recruiting
Brain Stimulation Treatment for Diarrhea-Prone Irritable Bowel Syndrome
This trial tests whether repeated magnetic stimulation applied to the scalp (a non-invasive procedure) can reduce diarrhea and belly pain in people with diarrhea-predominant IBS. The goal is to see if this brain-based treatment can improve your symptoms.
Suzhou, JiangsuAges 18–70 - NCT07749092Recruiting
Kimchi powder for gut health in IBS
This study tests whether taking kimchi powder (a dried form of the fermented cabbage dish) can improve gut health and symptoms in people with diarrhea-predominant IBS. You'll avoid regular kimchi for about 2 months, then take the powder daily and track how you feel.
YangsanAges 20–70
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Common questions
- Are there clinical trials for diarrhea-predominant irritable bowel syndrome?
- Yes. Clin2 currently lists 10 recruiting diarrhea-predominant irritable bowel syndrome 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 diarrhea-predominant irritable bowel syndrome 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 diarrhea-predominant irritable bowel syndrome 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.