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
- NCT04038619RecruitingPhase 1
Fecal transplant for immune-therapy diarrhea or bowel inflammation
This early-phase study tests whether stool/fecal microbiota transplant (a fecal transplant) can help people who develop significant diarrhea or colitis after immune-checkpoint therapy. It aims to reduce bowel inflammation and improve symptoms, while carefully checking for infections.
Houston, TexasAges 18 years+ - NCT03895593Recruiting
Fecal transplant for stubborn intestinal infections
This study looks at “rescue” fecal microbiota transplantation (FMT), which replaces gut microbes using stool from a screened donor, for intestinal infections that have not improved with standard care. It may help patients whose infection keeps coming back or doesn’t respond to treatment.
Nanjing, JiangsuAges Any age - NCT07823231Recruiting
Climate-resilient water and hygiene for schools and clinics in Karamoja
This study tests whether improving access to clean water, sanitation, and hygiene in schools and health facilities helps students and the community stay healthier. If your school is selected, your family may benefit from safer water and better hygiene.
MorotoAges Any age - NCT04305769RecruitingPhase 2
Alanyl-glutamine to help treat C. difficile diarrhea
This study tests whether the supplement alanyl-glutamine, given along with standard treatment, can improve outcomes for adults being treated for C. difficile infection (a cause of diarrhea). It may help the body recover better after antibiotics that usually treat C. difficile.
Charlottesville, VirginiaAges 18–105 - NCT07656623Recruiting
Probiotics for IBS with stomach issues and stress
This trial tests whether a special probiotic blend can help people with irritable bowel syndrome (IBS) who also have stomach symptoms like heartburn, bloating, or nausea, and feel anxious, depressed, or stressed. It aims to see if the probiotic improves both gut and mood symptoms.
Hanoi, HanoiAges 18 years+ - NCT07605728RecruitingPhase 2
Probiotics to ease stomach problems from breast cancer treatment
This trial tests whether a special probiotic supplement (good bacteria) can reduce belly discomfort caused by abemaciclib, a hormone therapy drug for early breast cancer. You would take the supplement alongside your cancer treatment to see if it helps with stomach side effects.
TaipeiAges 18 years+ - NCT07610382Recruiting
IV Fluids for Stomach Bugs in Young Children
This study compares two types of IV fluids commonly used to rehydrate young children with gastroenteritis (stomach flu with diarrhea and vomiting). Researchers want to see which fluid works better and causes fewer problems.
AydinAges 6 months–5 years - NCT06259396Recruiting
8x5 Diet for Bile Acid Diarrhea
This trial tests a special 8-hour eating window (8x5 Diet) for people with bile acid diarrhea. It aims to see if this diet can help manage symptoms when medication alone is not enough.
Manchester, Greater ManchesterAges 18 years+ - NCT07519395RecruitingPhase 2
Camlipixant for IBS with diarrhea or mixed symptoms
This study tests an investigational drug, camlipixant, to see if it can reduce belly pain and diarrhea or mixed bowel symptoms in adults with irritable bowel syndrome (IBS). If you've tried other IBS treatments without enough relief, this might be an option.
Anniston, AlabamaAges 18–80 - NCT06556940RecruitingEarly Phase 1
Study of LMN-401 in people with an ileostomy
This study looks at how your body absorbs the drug LMN-401 when you have an ileostomy. It's designed to understand the effect of your digestive system on the medicine.
MaroochydoreAges 19 years+ - NCT07444008Recruiting
BioAmicus Complete for infant digestive and skin issues
This study tests if BioAmicus Complete, a probiotic blend, can help babies with colic, reflux, diarrhea or constipation, and food allergy-related skin problems. Eligible babies are 1 to 4.5 months old, breastfed or formula-fed, and whose parents speak Russian.
Saint PetersburgAges 1 month–5 months - NCT07426822RecruitingPhase 2
Preventing Rash and Diarrhea with Capivasertib for Breast Cancer
This trial tests whether giving a combination of the drugs capivasertib and fulvestrant, along with medicines to prevent rash and diarrhea, can help treat hormone receptor-positive breast cancer that has a PIK3CA, AKT1, or PTEN change. It's for people whose cancer has spread or is locally advanced and can't be removed with surgery.
New Haven, ConnecticutAges 18 years+ - NCT07433426RecruitingPhase 2
Shigella infection treatment study for young children
This study tests how well a recommended treatment works for children aged 6 months to 5 years who have diarrhea caused by Shigella bacteria. It aims to find the best way to help children recover faster.
ChāndpurAges 6 months–4.9 years - NCT07385196Recruiting
Understanding symptoms after ileorectal surgery
This study observes patients who have had a surgery connecting the small intestine to the rectum (ileorectal anastomosis) or who kept their rectum after colon surgery. Researchers want to better understand what symptoms these patients experience, which could help improve care.
DiyarbakırAges 18 years+ - NCT07342101Recruiting
Studying LGG for acute diarrhea in children
This trial tests whether a probiotic called LGG (a type of good bacteria) helps children with sudden diarrhea from an infection feel better faster. It is for children who have had diarrhea for less than 48 hours and have not taken probiotics or antibiotics recently.
EskişehirAges 2–10 - NCT07338565Recruiting
Magnesium study for gut conditions
This trial looks at magnesium levels in people with inflammatory bowel disease, an ileostomy, or bile acid diarrhea, compared to healthy volunteers. It aims to understand how these conditions affect magnesium in the body.
Aarhus NAges 18 years+ - NCT06031025Recruiting
Study of tummy problems in at-risk infants
This study looks at how common stomach and gut issues are in babies who were born early or had problems at birth, and how these issues change over time.
RomaAges 3 months–2 years - NCT07317167Enrolling by invitation
Water safety plan study in Ghana
This trial is testing a water safety plan to improve drinking water quality in Ghana. It may help people who get their water from certain private water suppliers.
AccraAges 18 years+ - NCT07300462Enrolling by invitationPhase 4
Oral cholera vaccine safety study for children
This trial is for children aged 2 to 14 who have not had a cholera vaccine before. It tests a safe, oral vaccine to prevent cholera, a serious diarrheal disease.
Hefei, AnhuiAges 2–14 - 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 - NCT07205926RecruitingPhase 1
Testing a new Shigella vaccine in healthy adults
This trial tests a new Shigella vaccine in healthy adults to see if it is safe and creates a good immune response. It is a first-in-human study, meaning this is the first time the vaccine is given to people.
Cincinnati, OhioAges 18–49 - NCT04750070RecruitingPhase 3
Treating shock in young children with severe malnutrition and diarrhea
This study tests a treatment approach to help children who are in “shock” (their body is struggling to maintain blood flow and oxygen) caused by diarrhea and severe undernutrition. It may help care teams stabilize children faster and improve outcomes.
DhakaAges 1 month–4.9 years - NCT07195006Recruiting
Malnutrition in pregnancy and child growth study
This study looks at how nutrition during pregnancy affects the health of mothers and babies, including gut health and growth. It compares women with low nutrition to those with healthy nutrition.
HarareAges 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
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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.