Gastroenterology
Digestive system clinical trials
Conditions of the stomach, intestines, liver, and the rest of the digestive tract. We’re tracking 7,879 recruiting studies in this area right now.
By phase
- Not applicable4,911
- Phase 21,185
- Phase 1581
- Phase 3465
- Phase 1/Phase 2391
- Phase 4235
- Phase 2/Phase 3111
Top conditions
- Colorectal Cancer491
- Gastric Cancer296
- Pancreatic Cancer289
- Hepatocellular Carcinoma283
- Esophageal Cancer191
- Rectal Cancer176
- Breast Cancer146
- Crohn Disease144
- Ulcerative Colitis141
- Colon Cancer115
- Inflammatory Bowel Diseases108
- Hepatocellular Carcinoma (HCC)106
- Liver Cancer100
- Lung Cancer97
- Pancreas Cancer94
- Esophageal Squamous Cell Carcinoma88
- Ovarian Cancer88
- Cystic Fibrosis78
Leading sponsors
- Fudan University104
- Sun Yat-sen University90
- Mayo Clinic75
- Chinese University of Hong Kong60
- M.D. Anderson Cancer Center58
- Second Affiliated Hospital, School of Medicine, Zhejiang University57
- Assistance Publique - Hôpitaux de Paris55
- Sixth Affiliated Hospital, Sun Yat-sen University50
- National Taiwan University Hospital49
- Cancer Institute and Hospital, Chinese Academy of Medical Sciences48
Where studies are running
- California461
- Arizona177
- Texas149
- Florida134
- Massachusetts128
- New York123
- Alabama122
- Maryland85
- Ohio79
- Pennsylvania72
Recruiting studies7,879 total
- NCT03876288Recruiting
Study tracks symptoms and nutrition in hard-to-treat gastroparesis
This study follows people with drug-refractory gastroparesis (stomach paralysis symptoms that don’t improve with usual medicines) to better understand how symptoms and nutrition change over time. Your information may help researchers understand patterns that could improve care.
Louisville, KentuckyAges Any age - NCT03886961Recruiting
Reflux band device trial for lung transplant recipients
This trial tests whether a Reflux Band™ placed around the upper swallowing tube area can reduce reflux (stomach acid coming up) in people who have had a lung transplant. If reflux is causing discomfort or lung irritation, reducing it may help you stay stable after transplant.
Gainesville, FloridaAges 18–80 - NCT03894228Recruiting
Study of Crohn’s and colitis medicines during pregnancy and breastfeeding
This registry study tracks outcomes for mothers with inflammatory bowel disease (IBD) and their babies during pregnancy and breastfeeding while using IBD medicines. It aims to better understand the safety of these medicines so future pregnancies can be managed more confidently.
Santiago de Compostela, A CoruñaAges 18 years+ - NCT03894917Recruiting
Study blood and imaging features in older adults with liver cancer
This study looks at what liver cancer is like in newly diagnosed people who are older and whose cancer cannot be removed by surgery. It may help doctors better understand disease behavior and how treatments may work and affect the body.
San Antonio, TexasAges 18 years+ - NCT03895359RecruitingPhase 3
Chemo plus targeted radiation versus chemo alone for liver cancer
This trial compares two treatments for liver cancer that can’t be removed with surgery: chemo through the liver (TACE) alone versus TACE plus a precise radiation treatment (SBRT). It may help people whose cancer stays in the liver but can’t be operated on, by testing whether adding focused radiation improves outcomes.
London, OntarioAges 18 years+ - NCT03897543RecruitingPhase 1/Phase 2
Testing ABX196 plus nivolumab for advanced liver cancer
This trial studies whether ABX196 combined with nivolumab can slow or treat advanced hepatocellular carcinoma (liver cancer) when it can’t be fully cured with surgery or local procedures. It’s early-phase, so the goal is to find the best way to treat and whether it shows signs of benefit.
La Jolla, CaliforniaAges 18 years+ - NCT03899428RecruitingPhase 2
Immune therapy versus targeted therapy for advanced liver cancer
This trial compares an immune “checkpoint” medicine to a targeted cancer medicine in people with advanced liver cancer who have hepatitis B in the blood. It aims to lower hepatitis B surface antigen (HBsAg) levels and see which approach works better and is safest.
Hong Kong, Hong Kong SARAges 18 years+ - NCT03900910Recruiting
Gastric cancer prevention program for Indigenous adults
This trial studies a prevention approach to help lower the chance of stomach (gastric) cancer in Indigenous people. You may be able to join if you’re in the right age range, can understand consent, and are not pregnant or dealing with serious other illnesses.
Taipei, TaiwanAges 20–60 - NCT03908684Recruiting
Ultrasound tests to predict early response to prostate and head/neck radiation
This study uses special ultrasound imaging to look for early signs of how well radiation treatment is working in prostate, rectum, and head/neck cancers. It may help doctors spot response sooner and adjust care earlier if needed.
Toronto, OntarioAges Any age - NCT03913962Recruiting
Exercise study for children with chronic or autoimmune conditions
This study looks at how physical activity affects muscle, metabolism (how your body uses energy), and body composition in children with certain chronic or autoimmune conditions. It may help doctors understand what types of exercise and monitoring are most beneficial and safe.
Clermont-FerrandAges 6–18 - NCT03915262Recruiting
Active Crohn’s patients with possible pancreas enzyme problems
This study looks at how often people with active Crohn’s disease also have trouble digesting food because the pancreas may not release enough enzymes (exocrine pancreatic insufficiency). It may help doctors better recognize this hidden problem in people whose Crohn’s is currently active.
Pierre-BéniteAges 18 years+ - NCT03916809Recruiting
Voice and swallowing therapy device during head and neck cancer treatment
This trial tests whether using a mouth-based training device (called EMST150) during planned radiation (with or without chemotherapy) can help people with head and neck cancer with swallowing and related muscle function. It may be useful if you’re starting radiation for a cancer in the mouth, throat, or voice box area.
Milwaukee, WisconsinAges 18 years+ - NCT03917043RecruitingPhase 1
Testing a new targeted drug for ALK or ROS1 lung cancers
This Phase 1 trial tests APG-2449, a new drug, in people with advanced solid tumors—especially certain lung cancers that have ALK or ROS1 gene fusions. Because it’s an early safety-and-dose study, it may help learn how well the drug works and what doses are safe.
Beijing, Beijing MunicipalityAges 18 years+ - NCT03917303RecruitingPhase 4
Check-in app for people with newly diagnosed Crohn’s disease
This Phase 4 study tests whether using the myIBDcoach smartphone app helps people with Crohn’s disease manage their care. It’s for people who are newly diagnosed or having a flare and have not used biologic medicines before.
MaastrichtAges 18–70 - NCT03919461RecruitingPhase 2
Preventing colon and rectal cancer spread after surgery
This Phase 2 study tests medicines given around the time of colon or rectal cancer surgery to help lower the chance the cancer will later spread to other parts of the body. If you are planned for curative (potentially curable) surgery and have no signs of spread yet, the trial may help prevent future metastases.
AfulaAges 20–80 - NCT03920618Recruiting
Testing three HBV medicines for severe liver flare (ACLF)
This study compares three hepatitis B (HBV) medicines to see which treatment helps people with a severe liver flare. You may be eligible if you have confirmed HBV and lab results showing significant liver stress.
Guangzhou, GuangdongAges 12–65 - NCT03921060RecruitingPhase 4
Check osteoporosis markers in people with cystic fibrosis
This study looks for signs (markers) of bone thinning—called osteoporosis—in people with cystic fibrosis. Your participation may help researchers understand how osteoporosis develops in CF and whether a bone-strengthening medicine like denosumab could help, since some participants may need that medication.
Dallas, TexasAges 18–64 - NCT03921502Recruiting
ERCP vs ERCP with a stomach drainage procedure comparison
This trial compares two endoscopy approaches to drain a blocked bile duct caused by gallstones. It may help people who can’t safely have standard surgery decide which drainage method works best after an initial ERCP plan fails or is limited.
ValladolidAges 75 years+ - NCT03926338RecruitingPhase 2
Before-surgery immunotherapy for MSI-H or dMMR colon cancer
This trial studies a treatment given before surgery using toripalimab, with or without celecoxib, for colon or rectal cancer that has MSI-H or dMMR tumor features. It aims to shrink or control the cancer before the operation and compare whether adding celecoxib helps.
Guangzhou, GuangdongAges 18–75 - NCT03925194RecruitingPhase 2
Test Anakinra injections under the skin for cystic fibrosis
This Phase 2 study tests whether a medicine called anakinra, given as under-the-skin injections, is safe and may improve lung outcomes in adults with cystic fibrosis. You may be able to join if you meet specific breathing and lab criteria and can follow the study schedule.
Heidelberg, Baden-WurttembergAges 12 years+ - NCT03925662RecruitingPhase 3
Mebendazole added to stage 4 colon cancer care
This trial studies whether adding mebendazole (an existing anti-parasite medicine) to standard treatment can improve outcomes for people with stage 4 colon cancer. You might qualify if you have stage 4 colorectal cancer and none of the key safety concerns.
CairoAges 18 years+ - NCT03932461Recruiting
Wound suction vs immediate re-operation for severe bowel infection
This trial compares two ways of treating the abdomen after emergency surgery when there is severe contamination from a bowel perforation causing widespread peritonitis. It may help find the safest approach to control infection and promote healing.
Odense, FynAges 19 years+ - NCT03933384RecruitingPhase 4
Tenofovir alafenamide versus entecavir for chronic hepatitis B
This study compares two approved hepatitis B medicines—tenofovir alafenamide and entecavir—to see which works best for people with chronic hepatitis B. It may help improve control of the virus and support better long-term liver health.
Taichung, TaichungAges 20 years+ - NCT03941080Recruiting
Study gut bacteria changes in advanced colorectal cancer
This study looks at how gut bacteria (the microbiome) change during treatment for colorectal cancer that has spread or cannot be removed. Researchers hope the findings may help improve understanding of how treatment works and how to tailor care.
AssenAges 18 years+
Common questions
- How many digestive system clinical trials are recruiting?
- Clin2 is tracking 7,879 recruiting gastroenterology studies from the U.S. registry right now, out of 12,372 we cover in this area in total.
- What does “Digestive system” cover here?
- Conditions of the stomach, intestines, liver, and the rest of the digestive tract. We group each study into digestive system based on the conditions it studies, so you can scan the whole therapeutic area at once and drill into a specific condition.
- How do I find a digestive system trial near me?
- Use the search to filter digestive system studies by location and eligibility. Every Clin2 trial page explains the criteria in plain English and offers a short, optional pre-screen for a fit read — the study team makes the final decision.
Other specialties
- Cancer
- Brain & nervous system
- Heart & circulation
- Hormones & metabolism
- Mental health
- Lungs & breathing
- Immune system & allergy
- Women’s health & pregnancy
- Skin
- Blood & lymphatic
- Kidney & urinary
- Infections
- Genetic & congenital
- Bones, joints & muscles
- Pain
- Injuries & trauma
- Mouth & dental
- Eyes & vision
- Ear, nose & throat
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov; specialty groupings are derived from each study’s conditions. Talk with your doctor about whether a specific trial is right for you.