Clinical trials
Gastrointestinal clinical trials
Below are recruiting gastrointestinal clinical trials, each written for real people, not researchers. We’re tracking 469 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06868875Recruiting
Small bowel MRI data sharing study
This study asks permission to use past MRI scans of your small bowel for research. It aims to improve how we understand and diagnose bowel conditions.
LondonAges 16 years+ - NCT07319364RecruitingPhase 1
Fecal transplant study for cancer treatment side effects
This trial tests whether fecal transplants (putting healthy donor bacteria into your gut) can help with side effects like diarrhea, constipation, or nausea caused by cancer treatments. It is for people with advanced gastrointestinal cancer who are about to start their fourth round of chemo or targeted therapy.
Zhejiang, HangzhouAges 18 years+ - NCT06541431Recruiting
Testing a new fluid monitoring platform after surgery
This trial tests a new platform that looks at fluid from drains after abdominal or pelvic surgery to see if it can help detect complications early. It may help doctors monitor your recovery more closely.
Hamilton, OntarioAges Any age - NCT07307495Recruiting
Pain relief after back surgery and its effect on recovery
This study tests a new painkiller, oliceridine fumarate, given through a pump after lumbar spine surgery. The goal is to see if it helps the bowels and stomach recover faster compared to standard pain relief.
Xi'an, ShaanxiAges 18–75 - NCT07303738RecruitingPhase 4
Testing bile-lowering foods for kids with feeding tubes
This trial tests if certain foods can lower bile acid levels in the upper part of the stomach for children who get most nutrition through a feeding tube. It may help understand and manage reflux symptoms related to bile.
Boston, MassachusettsAges 5–21 - NCT07299942Recruiting
Beta-glucan supplement for weight loss in women
This trial tests whether taking a beta-glucan supplement (a type of fiber) during a calorie- and carb-restricted diet helps with losing body weight and fat, controlling appetite, and managing hunger hormones. It is for healthy women who are overweight or obese and not following a special diet.
GlasgowAges 18–60 - NCT07293910RecruitingPhase 2
Comparing stomach acid drugs for clearing H. pylori infection
This trial tests different combinations of stomach acid-reducing drugs, vitamin D or probiotics, to see which works best for clearing an H. pylori infection. H. pylori is a common stomach bacteria that can cause ulcers or stomach discomfort.
Shibīn al KawmAges 18–80 - NCT07293624Enrolling by invitation
Diet and inflammation after weight-loss surgery
This study looks at how your diet affects inflammation and stomach symptoms after weight-loss surgery. You'll fill out food records and have blood tests to see how your eating habits relate to your health.
Istanbul, UskudarAges 18–65 - NCT07281248Recruiting
Prehabilitation before gastrointestinal cancer surgery
This trial tests a program of exercise, nutrition, and mindfulness before surgery for gastrointestinal cancer. It aims to help you recover better after your operation.
Madrid, MadridAges 18 years+ - NCT07283939Recruiting
Testing a tool to adjust chemo doses and reduce treatment delays
This trial tests a computer algorithm called PAGODA that helps doctors adjust chemotherapy doses for people with gastrointestinal cancers. The goal is to prevent unplanned treatment delays while keeping the treatment effective.
Fairbanks, AlaskaAges 18 years+ - NCT04181970Recruiting
Study of sarcoma care quality across Europe and Latin America
This observational study looks at information from people with sarcoma to understand how care is delivered across different centers. It does not test a new treatment, but may help improve future care and planning.
Buenos AiresAges 18–120 - NCT07272187Recruiting
Heat therapy for small pancreatic and adrenal tumors
This trial tests a new treatment that uses an endoscope (a thin, flexible tube with a camera) to deliver heat energy directly to certain small tumors in the pancreas or adrenal gland. It may be an option for people who cannot have surgery or whose tumors are growing slowly.
Herlev, Capital RegionAges 18 years+ - NCT07268365Recruiting
Using a cap on the endoscope for upper GI bleeding
This trial tests if placing a small plastic cap on the tip of the endoscope helps doctors treat bleeding ulcers in the stomach or duodenum more effectively. It is for people who are actively bleeding from an ulcer and need an emergency endoscopy.
Amiens, PicardieAges 18 years+ - NCT07264998Recruiting
Gut bacteria study in breast cancer patients on Abemaciclib
This study looks at how gut bacteria changes in people taking Abemaciclib (a breast cancer drug) and whether that relates to diarrhea. It may help find ways to prevent or manage this side effect.
Wuhan, HubeiAges 18–75 - NCT07261228Recruiting
Comparing carbon footprint of diagnostic vs. therapeutic upper endoscopy
This study looks at how much carbon dioxide is released during upper endoscopy, comparing people having a diagnostic procedure for stomach discomfort versus those having treatment for a bleeding ulcer. It may help understand which type of procedure has a bigger environmental impact.
BangkokAges 20–80 - NCT05804331Recruiting
Endoscopy treatment study for large upper stomach/throat lesions
This trial studies a specialized endoscopy procedure to remove larger abnormal growths in the upper digestive tract. It may help people whose lesion size and depth make certain removal techniques a better fit.
Sydney, New South WalesAges 18 years+ - NCT07253155Enrolling by invitation
Probiotics for preventing gut symptoms in overweight adults
This study tests whether taking probiotics can help prevent stomach and gut discomfort in people who are overweight or have obesity. You may be eligible if you are at a certain weight and age, eat a balanced diet, and do not have chronic gut issues.
ColeraineAges 18 years+ - NCT07257835Recruiting
Dupilumab for tough stomach and gut diseases
This trial tests if dupilumab can help people with hard-to-treat stomach ulcers linked to eosinophilic gastrointestinal disorders (EGIDs), where a type of white blood cell builds up in the gut. It may offer a new option for those who haven't gotten better with other treatments.
ShanghaiAges 1–18 - NCT07253701Recruiting
Epilepsy and gut bacteria: understanding treatment response
This study looks at how the bacteria in your gut relate to how well epilepsy treatments work. It compares people with newly diagnosed epilepsy (who haven't yet started medicine) to healthy people without epilepsy.
GothenburgAges 2–79 - NCT07226440RecruitingPhase 1/Phase 2
Trial to help firefighters reduce PFAS with a gastrointestinal product
This trial tests if taking a special tablet twice daily can help male firefighters lower PFAS chemicals in their bodies. It involves three visits in the San Francisco Bay Area, at-home blood tests, and weekly text surveys over about 6.5 months.
San Francisco, CaliforniaAges 18 years+ - NCT07224750Recruiting
A blood test to find early signs of gastrointestinal cancer
This study is testing a blood-based test to detect unique molecules (called miRNAs) that may signal the presence of several types of gut or digestive system cancers. The goal is to develop a simple screening tool that could catch these cancers earlier.
Duarte, CaliforniaAges 18 years+ - NCT03716089Recruiting
Laparoscopic surgery for stomach GIST by tumor site
This trial studies whether doing laparoscopic surgery for stomach GISTs (gastrointestinal stromal tumors) works and is safe when the tumor is in a “favorable” versus “unfavorable” location. You might be eligible if your tumor is confirmed as GIST and doctors expect to remove it completely using keyhole surgery.
Fuzhou, FujianAges 18–75 - NCT07212361Recruiting
Restoring infant gut bacteria with mother's microbes
This study tests whether giving healthy newborns a special mix of their own mother's friendly bacteria can help build a healthy gut. It is for mothers who had a healthy pregnancy, plan to breastfeed, and live near Helsinki.
HelsinkiAges Up to 50 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
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Common questions
- Are there clinical trials for gastrointestinal?
- Yes. Clin2 currently lists 469 recruiting gastrointestinal 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 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 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.