Clinical trials
Gastrointestinal clinical trials
Below are recruiting gastrointestinal clinical trials, each written for real people, not researchers. We’re tracking 477 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06748690Recruiting
Comparing biopsy methods for stomach tumors
This trial compares two ways to take a tissue sample from stomach tumors before surgery to see which works better. The results may help doctors choose the best method for patients.
Beijing, Beijing MunicipalityAges 18 years+ - NCT07001943Recruiting
Blood flow in stomach and gut injury in ICU patients
This trial checks if changes in blood flow to the stomach and intestines can predict gut injury in critically ill patients who need feeding through a tube. It uses a safe ultrasound test at the bedside.
Beijing, Beijing MunicipalityAges 18–80 - NCT06930079Recruiting
Fat injection for chronic fistulas of the gut and pelvis
This trial tests a new technique where a small amount of your own fat is taken, processed, and injected through an endoscope to help heal long-lasting fistulas (abnormal connections between organs) that haven't healed with other treatments. It's for people with fistulas that affect quality of life.
RomeAges 18 years+ - NCT06937814Recruiting
Effect of Humiome Post LB on Gut Comfort in Healthy Adults
This study tests a supplement called Humiome Post LB to see if it helps with mild digestive discomfort like bloating, irregular stools, and urgency. If you have frequent but not severe bowel issues (10-20 movements per week with loose stools) and are generally healthy, this may be for you.
London, OntarioAges 18–75 - NCT07411118Recruiting
Comparing two ways to remove stomach GIST tumors with an endoscope
This trial compares two endoscopic techniques (EFTR and STER) for removing small to medium-sized GIST tumors from the stomach wall. It aims to see which method is safer and more effective.
ShanghaiAges 18–75 - NCT07730229Recruiting
Plant-based drink study for healthy adults
This trial looks at how plant-based drinks affect the bacteria in your gut. You would drink a plant-based beverage daily and provide stool samples to see how your gut microbiome changes.
Lund, Skåne CountyAges 18–65 - NCT06316245Recruiting
Recovery after major gastrointestinal surgery
This study looks at how well you recover after major or intermediate surgery on your stomach, intestines, colon, or rectum. It measures your ability to do daily activities and how many days you spend at home (instead of the hospital) in the first 30 days after surgery.
Istanbul, FatihAges 18 years+ - NCT06538610Recruiting
Portable heart monitor for people on FOLFOX chemo
This study will use a small portable heart monitor (Holter) to track your heart rhythm while you receive FOLFOX chemotherapy. The goal is to learn more about how the chemotherapy drug 5-FU affects the heart.
AucklandAges 18 years+ - NCT06118437Recruiting
Gastrointestinal cancer screening prediction study
This study aims to build a model to predict your risk of gastrointestinal cancer based on personal risk factors. It involves having both an upper endoscopy (gastroscopy) and a colonoscopy at the same time.
Xi'an, ShaanxiAges 18–80 - NCT06380309RecruitingEarly Phase 1
Study of experimental drug IDOV-SAFE for advanced digestive cancers
This trial tests an investigational drug for people with advanced digestive system cancers (like colorectal, stomach, or liver cancer) that have stopped responding to standard treatments. The goal is to see if the drug is safe and helps control the cancer.
BeijingAges 18–75 - 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+ - NCT06108011Recruiting
Lollipop to help children's stomach recovery after surgery
This trial gives children a lollipop after major abdominal surgery to see if it helps their stomach and intestines work better sooner. Children who can suck and swallow, are not on a breathing machine, and have no food allergies may be able to join.
Hong KongAges Up to 18 years - NCT07448129Recruiting
Testing SUBMO for removing large colon growths
This trial tests a new liquid called SUBMO that doctors inject under large growths in the colon to make them easier to remove during a colonoscopy. It may help people who need a colon polyp or other lesion removed.
Barcelona, BarcelonaAges 18 years+ - NCT07412379Recruiting
Predicting recovery after cancer surgery for older adults
This study looks at how older adults (65+) with digestive tract cancers respond to surgery aimed at a cure. Researchers want to see what factors affect recovery and quality of life after the operation.
BogotáAges 65 years+ - 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 - NCT07106424Recruiting
Early screening study for multiple gastrointestinal tumors
This study is looking for people aged 40-75 who have never had cancer to participate in early screening for gastrointestinal tumors. The goal is to find cancers early when they are easier to treat.
Jinan, ShandongAges 40–75 - 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+ - NCT06609213Recruiting
Testing a nutrition drink before feeding tube placement in ALS
This trial tests if drinking a special nutrition formula for a few weeks before getting a feeding tube can help people with ALS tolerate tube feeding better. It aims to reduce side effects like bloating or discomfort.
Fort Lauderdale, FloridaAges 18 years+ - NCT07740967Recruiting
Collagen and omega supplements for middle-aged women
This study tests whether daily collagen and omega-3 supplements can improve health in healthy middle-aged women. You would take the supplements for a period and have your health measured.
LoughboroughAges 35–65 - NCT07735182Recruiting
Gut bacteria and organ damage in sepsis
This study looks at how bacteria in your gut and other signs in your body affect liver and kidney damage in people with sepsis. It also compares findings to healthy volunteers to see what is different.
Hangzhou, ZhejiangAges 18 years+ - NCT07729930Recruiting
Creatine supplement study for healthy middle-aged women
This study is testing a creatine supplement (a substance that may help with energy and muscle function) in healthy middle-aged women. You may join if you are between 35 and 65, a non-smoker, and have a certain activity level.
LoughboroughAges 35–65 - NCT07727226Recruiting
Patient views on single-use gastroscopes
This study asks patients like you to share their experience about using a single-use gastroscope during an elective or subacute upper endoscopy. Your feedback will help doctors understand how these disposable scopes work in everyday practice.
KøgeAges 18 years+ - NCT04629677Recruiting
Portal vein stent for narrowed portal blood vessels
This trial looks at whether placing a small metal stent in the portal vein and nearby veins can improve problems caused by major narrowing (or clotting) of these vessels in people with gastrointestinal cancers. If you have significant vessel narrowing, the study may offer a targeted way to relieve pressure and symptoms that are not caused by the tumor directly.
Houston, TexasAges 18 years+ - NCT05664113RecruitingPhase 1
Fecal transplant for gut problems after stem cell transplant
This study tests whether transplanting healthy donor stool into the gut can help children and young adults with ongoing digestive issues after a stem cell transplant. It may improve symptoms like diarrhea or the need for feeding tubes.
Memphis, TennesseeAges Up to 22 years
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Common questions
- Are there clinical trials for gastrointestinal?
- Yes. Clin2 currently lists 477 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.