Clinical trials
Diarrhea clinical trials
Below are recruiting diarrhea clinical trials, each written for real people, not researchers. We’re tracking 71 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07164781Enrolling by invitation
Probiotics for preventing infections in ICU patients
This trial tests whether probiotics (good bacteria) can help prevent serious infections in critically ill patients in the ICU. If you are very sick and in the ICU, you may be able to join — as long as you don't have certain conditions like cancer or a weakened immune system.
Banhā, Qalyubia GovernorateAges 18 years+ - NCT07148583Recruiting
BioAmicus Complete for tummy troubles in babies
This study tests if a probiotic supplement called BioAmicus Complete can help babies with common digestive issues like colic, reflux, constipation, or loose stools. It might be a good option if your baby has these symptoms and you haven't used other probiotics or antibiotics recently.
Haiphong, Hai PhongAges birth–2 years - NCT07114055RecruitingPhase 2/Phase 3
Ebastine for diarrhea-predominant IBS
This trial tests whether ebastine, an allergy medicine, can help relieve symptoms of diarrhea-predominant irritable bowel syndrome (IBS-D). If you have IBS-D and are at least 18, this study may offer a new option to manage your condition.
DhakaAges 18 years+ - NCT07103772Enrolling by invitation
Does a food supplement help irritable bowel syndrome?
This study tests a special food-based supplement (called a nutraceutical) to see if it helps relieve symptoms of irritable bowel syndrome (IBS), like diarrhea and constipation. It is only open to UANL employees and their beneficiaries who are not already on medication for their stomach issues.
Monterrey, Nuevo LeónAges 18 years+ - NCT06912347Enrolling by invitation
Herbal therapy to prevent infection after stem cell transplant
This trial tests whether a special herbal treatment applied to the skin can help prevent infections around the bottom that are caused by diarrhea after a stem cell transplant. It may be an option for people who are getting a transplant for the first time.
Shanghai, Shanghai MunicipalityAges 14–70 - NCT05663775RecruitingPhase 2
Mesalamine to prevent bowel inflammation after melanoma immunotherapy
This study tests whether taking mesalamine can prevent colitis (bowel inflammation) in people with advanced melanoma who are treated with ipilimumab plus nivolumab. It may help reduce dangerous stomach or bowel side effects from this cancer treatment.
Edmonton, AlbertaAges 18 years+ - NCT06055179Recruiting
Herbal medicine for diarrhea from irinotecan chemo
This study tests if a Chinese herbal formula (XCHT) can reduce diarrhea caused by the chemo drug irinotecan. If you are getting irinotecan and already had troublesome diarrhea, you may be able to join and get supportive treatment.
Guangzhou, GuangdongAges 18–75 - NCT06807593RecruitingPhase 2
Treating ICI-related diarrhea or colitis with ustekinumab
This trial tests if ustekinumab can help cancer patients who have diarrhea or colitis caused by immune checkpoint inhibitors. It may be an option if standard treatments haven't worked or aren't suitable.
Houston, TexasAges 18 years+ - NCT06757491Recruiting
Low frequency brain stimulation for diarrhea-predominant IBS pain
This trial tests if a type of brain stimulation called low-frequency repetitive transcranial magnetic stimulation (lf-rTMS) can reduce belly pain in people with irritable bowel syndrome that causes diarrhea (IBS-D). It is a non-invasive treatment that uses magnetic pulses to target areas of the brain involved in pain perception.
Suzhou, JiangsuAges 18–75 - 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+ - NCT06681012Recruiting
Gelsectan for irritable bowel syndrome with diarrhea
This trial tests a supplement called Gelsectan to see if it reduces diarrhea and belly pain in people with diarrhea-predominant irritable bowel syndrome (IBS-D). It may help if you have loose, urgent stools more often than not.
LeuvenAges 18–65 - NCT06657001Enrolling by invitation
Personalized nutrition study for gut health
This study uses information from your gut bacteria (microbiome) to create personalized nutrition advice. It is for people with gut conditions like IBD, IBS, or celiac disease, as well as healthy volunteers.
Rochester, MinnesotaAges 18 years+ - NCT06498817Recruiting
Cholera home care for diarrhea patients without running water
This trial tests a 7-day hospital-based program to help patients with diarrhea who lack running water at home. It aims to prevent the spread of cholera and improve recovery.
MānikganjAges Any age - NCT06152289Recruiting
Better diagnosis with capsule endoscopy images
This trial uses images and videos from routine capsule endoscopy procedures to develop better ways to diagnose conditions. If you're already scheduled for a capsule endoscopy, you can help by allowing your images to be used for research.
ParisAges Any age - NCT06137014RecruitingPhase 1/Phase 2
Fortified rehydration drink for childhood diarrhea
This study tests a new type of oral rehydration drink for children with diarrhea. It aims to help kids recover faster at home without needing a hospital stay.
New Brunswick, New JerseyAges 6 months–5 years - NCT06003816Recruiting
7-day cholera water, sanitation, and hygiene help at home
This trial offers a 7-day program to help cholera patients who don't have running water at home. It provides tools and guidance on water, sanitation, and hygiene to stop cholera from spreading.
DhakaAges Any age - NCT05873231Recruiting
Gut microbiome study for diarrhea after anti-cancer treatment
This trial looks at how changes in the gut (microbiome) relate to diarrhea that can happen after starting anti-cancer therapy. It may help doctors better predict and manage treatment-related diarrhea.
GrazAges 18 years+ - NCT05852990RecruitingPhase 3
Gut help to prevent diarrhea from EGFR-targeted lung cancer drugs
This Phase 3 trial tests whether adding glutamine plus L. reuteri can help prevent severe diarrhea caused by EGFR-targeted treatments in people with advanced non-small cell lung cancer. If it works, it could make treatment easier to tolerate and help you stay on the planned therapy.
Mexico City, Mexico CityAges 18–80 - 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 - NCT05166850Recruiting
Preventive cholera help for households for 7 days
This study tests a 7-day preventive intervention for cholera-like diarrhea in households without running water. It may help reduce illness spread and protect young children when families lack safe water at home.
Bukavu, South KivuAges Any age - NCT05405387RecruitingPhase 2
Budesonide to prevent serious diarrhea after stem cell transplant
This Phase 2 study tests whether budesonide can lower the chance of moderate-to-severe diarrhea in people with multiple myeloma who are getting an autologous stem cell transplant. It may help your comfort and reduce complications during the transplant recovery period.
Salt Lake City, UtahAges 18 years+ - NCT04880876Enrolling by invitationPhase 3
Oral IBS-D medicine trial for kids and teens
This trial tests whether an oral medicine (eluxadoline) can help children and teens with IBS-D, a condition that causes stomach pain and frequent loose stools. It’s a Phase 3 study, meaning it’s designed to confirm benefits and safety.
Corona, CaliforniaAges 6–17 - NCT01868373Enrolling by invitationPhase 1
Fecal transplant study for hard-to-treat C. difficile diarrhea
This Phase 1 study tests defined fecal microbiota (healthy gut bacteria) given to people with C. difficile diarrhea that didn’t go away or came back soon after antibiotics. It may help by restoring a healthier balance of gut bacteria so the infection can stop recurring.
Houston, TexasAges 18 years+
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Common questions
- Are there clinical trials for diarrhea?
- Yes. Clin2 currently lists 71 recruiting diarrhea 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 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 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.