Clinical trials
Gastrointestinal Diseases clinical trials
Below are recruiting gastrointestinal diseases clinical trials, each written for real people, not researchers. We’re tracking 79 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06207136Recruiting
Diet and Gut Bacteria in Parkinson's
This study looks at how diet and the bacteria in your gut (microbiome) affect Parkinson's symptoms. You'll work with a coach and take cooking classes to see if changing what you eat can help you feel better.
Vancouver, British ColumbiaAges 40–80 - NCT04280510Recruiting
Study of immune-related gut illnesses in adults
This study looks at adults with immune-related stomach and intestine problems to better understand what may cause them. If you qualify, you can share information and consent to help researchers learn how these conditions work.
CréteilAges 18 years+ - NCT05996458Recruiting
Combined screening for stomach and colon cancers
This study aims to find a better way to screen for stomach and colon cancers. You will be asked to provide a stool sample, and possibly have an endoscopy (a camera test), to see if combined screening can catch cancer early.
Zhaoqing, GuangzhouAges 45–70 - NCT07724522Recruiting
Prebiotic Fiber for Irregular Periods in Women
This study tests whether taking a prebiotic fiber (inulin) can help women who are in the later years of their reproductive life (before menopause) and have irregular periods. You may be eligible if you are overweight, have irregular cycles, sit a lot, and do not exercise much.
Washington D.C., District of ColumbiaAges 40–55 - NCT05295446Enrolling by invitation
GI symptom registry for adults with functional bowel issues
This study is a registry (a way to collect health information) for adults with certain long-term “functional” gastrointestinal (GI) problems. It may help doctors better understand these conditions and improve future treatments.
Boston, MassachusettsAges 18 years+ - NCT07803978Enrolling by invitationEarly Phase 1
Study of Amimaitosai plus steroids for gut graft-versus-host disease
This study tests whether adding an investigational drug called Amimaitosai to standard steroids helps control gut symptoms caused by graft-versus-host disease after a stem cell transplant. It may offer a new option to reduce these symptoms and improve recovery.
Beijing, Beijing MunicipalityAges 14 years+ - NCT06421103Recruiting
ICG micro-dosing study for children having surgery
This study tests a tiny amount of a dye called Indocyanine Green (ICG) during surgery to see if it safely shows blood flow to the gut and urinary organs. It may help doctors check that these organs are getting enough blood during the operation.
LondonAges Up to 18 years - NCT06072976Recruiting
How feeding affects gut health in babies with bowel conditions
This study looks at whether breast milk or formula helps babies with certain bowel problems heal faster and reach full feeds sooner. It compares how different milk affects the bacteria in a baby's gut.
Seattle, WashingtonAges birth–55 years - NCT07471490Enrolling by invitation
Stool test study for inflammatory bowel disease vs. irritable bowel syndrome
This study collects stool samples and health information to help develop a new test that may tell the difference between inflammatory bowel disease (IBD) and irritable bowel syndrome (IBS). If you have not been diagnosed with a chronic gut disorder, you may be able to join.
Minneapolis, MinnesotaAges 2 years+ - NCT07163689Recruiting
TIPS for liver disease with portal hypertension
This trial compares patients who have a rare liver condition (porto-sinusoidal vascular disease) with those who have cirrhosis, to see how a procedure called TIPS (a shunt placed in the liver to reduce blood pressure) works for complications like bleeding, fluid buildup, or blood clots.
Amiens, PicardieAges 18 years+ - NCT05408897Recruiting
Blood test to predict risk after surgery for high-risk GIST
This study uses a “liquid biopsy” blood test to look for leftover cancer signals after surgery. It aims to predict how well treatment will work and how likely the cancer is to come back in people with high-risk GIST.
Beijing, Beijing MunicipalityAges Any age - NCT07539532Recruiting
AI model to predict heart problems after stomach surgery
This study compares a new artificial intelligence tool with traditional methods to predict which patients might have heart-related complications after gastrointestinal surgery. The goal is to find better ways to identify high-risk patients and potentially improve their care.
Hà NộiAges 16 years+ - NCT07770425Recruiting
Measuring lesion size during gastrointestinal endoscopy
This study tests a new way to measure the size of abnormal areas found during a routine endoscopy procedure. It may help doctors make more accurate measurements, which could improve diagnosis and treatment planning.
Montreal, QuebecAges 18 years+ - NCT07519915Recruiting
Understanding Nerve Stimulation for Bowel Problems in Children
This research study looks at using sacral neuromodulation—a treatment that uses mild electrical stimulation of nerves in the lower spine—to help children with bowel movement problems. Researchers want to understand how well this treatment works and what improvements matter most to patients and families.
ErlangenAges 3–18 - NCT05743426Recruiting
Tracking outcomes and side effects in GI and sarcoma cancers
This study follows adults with gastrointestinal cancer or sarcoma to better understand how patients do after treatment and what side effects happen. It may help researchers improve care for future patients by documenting real-world outcomes and toxicities.
Chapel Hill, North CarolinaAges 18 years+ - NCT04506593Recruiting
GI Motility diagnosis registry for people with digestion movement problems
This trial is a registry, meaning it collects information about people being evaluated for problems with how the gut moves. It may help doctors better diagnose gastrointestinal motility disorders in the future.
Indianapolis, IndianaAges Any age - NCT04566341Enrolling by invitation
Study gut problems in Parkinson’s and changes in gut nerves
This study looks at how digestive (gut) problems happen in people with Parkinson’s and whether there are related changes in the nerve tissue in the digestive tract. It may help researchers better understand the cause of these symptoms and find new ways to monitor or treat them.
Boston, MassachusettsAges 40–85 - NCT01793168Recruiting
Rare disease registry and history study
This study keeps a registry (a structured list) of people with rare diseases and may also track how the condition changes over time. It can help researchers better understand rare illnesses and find gaps in care, which may improve future treatments.
Sioux Falls, South DakotaAges Any age - NCT06848400Recruiting
Capsule endoscopy for stomach screening at home
This trial tests if a capsule-sized camera can be used at home to check for stomach problems. It's for healthy people or those with stomach symptoms like pain, nausea, or bleeding.
Guangzhou, GuangdongAges 18 years+ - NCT07219537Recruiting
Imaging the lower gut with a new capsule
This trial tests a new type of camera capsule that takes pictures of the lower part of your digestive tract. It may be an option for people who are healthy or have Lynch Syndrome and have had a recent normal colonoscopy.
Boston, MassachusettsAges 18–75 - NCT05002166Recruiting
Study of children with inflammatory bowel disease risks
This study looks at the typical features and risk factors in children diagnosed with inflammatory bowel disease (IBD). It may help families understand what affects IBD in kids, even if it is not testing a new treatment.
AsyutAges Up to 18 years - NCT03298334RecruitingPhase 1/Phase 2
Testing vaginal bacteria transfer to newborns after C-section
This study looks at whether they can safely place “healthy vaginal bacteria” from the mother into the newborn after a scheduled C-section, and whether it improves the baby’s health. It only enrolls certain mothers and babies based on infection testing and other health factors.
Falls Church, VirginiaAges birth–50 years - NCT06529913Recruiting
Metals, pollutants, and risk of allergies
This study looks at whether heavy metals, nanoparticles, and other pollutants in the environment increase the risk of allergic diseases like contact dermatitis. If you have a metal allergy or are a healthy adult, you may help researchers understand how these exposures affect your health.
BolognaAges 18 years+ - NCT05212129Recruiting
Stimulation of the ear nerve to help gut symptoms
This study tests whether stimulating a nerve in the ear (called auricular vagal nerve stimulation) can improve upper gut symptoms in teens who may have hypermobile Ehlers-Danlos syndrome (hEDS) or hypermobile spectrum disorder (HSD). It also checks whether this treatment helps nerves that control the body (autonomic nervous system) and how well the gut moves.
Milwaukee, WisconsinAges 10–18
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Common questions
- Are there clinical trials for gastrointestinal diseases?
- Yes. Clin2 currently lists 79 recruiting gastrointestinal diseases 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 gastrointestinal diseases 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 gastrointestinal diseases 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.