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
- NCT07714499Recruiting
Energy use in healthy people vs. those with intestinal failure
This study looks at how the body uses energy (calories) in people with intestinal failure compared to healthy controls. The results may help improve nutritional care.
LjubljanaAges 18–65 - NCT07618377RecruitingPhase 1
New Drug for Gastrointestinal Tumors After Multiple Treatments
This study tests a new drug called DCC-2618 for patients with GIST (a rare stomach/intestinal cancer) who have already tried at least three other treatments. The goal is to see if this drug can slow or shrink tumors in patients whose cancer has stopped responding to standard medications.
Kashiwa, ChibaAges 18 years+ - NCT07708012Enrolling by invitation
Laparoscopic and endoscopic surgery for early stomach cancer
This trial studies a combined surgical approach using a camera through small incisions (laparoscopy) and a flexible tube through the mouth (endoscopy) to treat early-stage stomach cancer. It aims to see if this approach can safely remove the cancer while sparing nearby lymph nodes.
Qingdao, ShandongAges 18–80 - NCT03190941RecruitingPhase 1/Phase 2
T-cell therapy for HLA-A11:01 and KRAS G12V tumors
This trial tests a custom immune-cell treatment made from your blood that targets the KRAS G12V change in certain cancers. It is for people with advanced cancer who have already tried standard treatments, and it may help your immune system recognize and attack tumor cells.
Bethesda, MarylandAges 18–72 - 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 - NCT03303495RecruitingPhase 3
Second-line chemo with or without bevacizumab for colon cancer
This Phase 3 study compares two treatment plans for people with metastatic colorectal cancer that got worse or caused side effects after first chemotherapy. It looks at whether adding bevacizumab (a medicine that targets blood vessels feeding tumors) improves outcomes versus using a different chemotherapy approach.
Guangzhou, GuangdongAges 18 years+ - NCT03539822RecruitingPhase 1/Phase 2
Cabozantinib and immunotherapy for advanced stomach or bowel cancers
This early-phase study tests a combination of anti-cancer pills and immune-based treatment for people with advanced stomach, esophagus, colorectal, or liver cancer. It aims to shrink tumors and see how safe the treatment is, including whether biopsy testing can help guide future care.
Westwood, KansasAges 18 years+ - NCT03594422RecruitingPhase 1
Testing an oral drug for GIST or other solid tumors
This Phase 1 trial tests HQP1351, a new oral cancer drug, in people with advanced GIST or other solid tumors that have not responded to prior treatment. It’s mainly designed to check safety and how the drug works in the body, which may lead to better options for tumors that have progressed.
Guangzhou, GuangdongAges 12 years+ - NCT03596476Recruiting
Test for reflux causes after proton pump pills fail
This study checks whether a special test of the esophagus after meals can find the exact reason for ongoing reflux symptoms when proton pump pills (PPIs) don’t help. It may help doctors choose the right next treatment for people whose reflux symptoms keep coming back.
Chambray-lès-ToursAges 18 years+ - NCT03602092Recruiting
GIST patient registry to improve real-world care
This observational study keeps a registry of people diagnosed with gastrointestinal stromal tumor (GIST) to collect real-life information over time. It may help doctors better understand outcomes and care patterns for future patients.
TaipeiAges 20 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 - NCT03740503Recruiting
Study genes in people who respond unusually to treatment
This study looks at stored tumor samples to understand why some people respond much better or much worse than expected. The goal is to learn what the tumor’s genes might be telling doctors about response to treatment.
Toronto, OntarioAges 18 years+ - NCT03800693RecruitingPhase 2
Shorter vs longer oxaliplatin infusions for gut cancer
This Phase 2 study compares giving oxaliplatin by IV for 2 hours versus 6 hours, along with the standard FOLFOX6 chemotherapy. It aims to see if the shorter infusion works as well and is manageable for people with gastrointestinal cancers.
Atlanta, GeorgiaAges 18 years+ - NCT03848962Recruiting
Share leftover or collected samples for research
This study helps collect and share human samples (like blood or other specimens) so researchers can do new studies. It’s mainly about providing samples for research use, not testing a treatment on you.
Huntsville, AlabamaAges 1 month–89 years - NCT03865290RecruitingPhase 2
Ondansetron for stomach nerve and motion problems in diabetes
This trial tests whether ondansetron can improve stomach “sensorimotor” problems—how the gut senses food and moves it—especially in people with diabetes and troubling indigestion. It may help reduce symptoms like early fullness, nausea, and discomfort after eating.
Rochester, MinnesotaAges 18–75 - NCT03866525RecruitingPhase 1/Phase 2
Test an oncolytic virus treatment for solid tumors
This early-stage study tests a virus therapy designed to attack solid tumors that cannot be removed by surgery or have returned/spread. It may help shrink tumors and control cancer in people whose standard treatments are no longer working.
Beijing, Beijing MunicipalityAges 18–75 - NCT03953768Recruiting
Testing a new vagus nerve stimulator for gut and immune health
This study looks at what happens to your immune system and stomach/gut function after getting a vagus nerve stimulator (VNS) for the first time for epilepsy. It may help doctors understand whether the device benefits more than seizures.
Louisville, KentuckyAges birth–60 years - NCT04097067Recruiting
Radiation therapy for slow-growing stomach lymphoma
This study tests whether a specific course of focused radiation (20 Gy) can control indolent (slow-growing) lymphoma in the stomach or upper small intestine. It may help shrink or stabilize tumors and lymph node involvement while limiting side effects.
Münster, North Rhine-WestphaliaAges 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 - NCT04273061RecruitingPhase 2
Atezolizumab for tumors that look sensitive on DNA/RNA testing
This Phase 2 study tests atezolizumab, an immunotherapy drug, in people with advanced, incurable solid tumors whose tumor DNA/RNA suggests they may respond. The goal is to see if the treatment works better for patients selected by these lab results.
Vancouver, British ColumbiaAges 18 years+ - 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+ - NCT04354064Recruiting
Blood DNA test to see early treatment response in solid tumors
This study looks at circulating tumor DNA, which is tiny bits of DNA found in blood, to help assess how solid tumors are responding early. It uses blood samples from healthy adults who are willing to donate.
St Louis, MissouriAges 18 years+ - NCT04359836Recruiting
Study of gut bacteria in early COVID-19
This trial studies how gut bacteria (“gut flora”) may affect COVID-19 after a recent infection. If you test positive for COVID-19 soon enough, the study may help researchers understand why some people get better faster or have different symptoms.
Ventura, CaliforniaAges 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
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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.