Gastroenterology
Digestive system clinical trials
Conditions of the stomach, intestines, liver, and the rest of the digestive tract. We’re tracking 7,916 recruiting studies in this area right now.
By phase
- Not applicable4,936
- Phase 21,188
- Phase 1583
- Phase 3465
- Phase 1/Phase 2396
- Phase 4237
- Phase 2/Phase 3111
Top conditions
- Colorectal Cancer493
- Gastric Cancer298
- Pancreatic Cancer292
- Hepatocellular Carcinoma284
- Esophageal Cancer191
- Rectal Cancer176
- Breast Cancer148
- Crohn Disease144
- Ulcerative Colitis140
- Colon Cancer115
- Inflammatory Bowel Diseases108
- Hepatocellular Carcinoma (HCC)107
- Liver Cancer101
- Lung Cancer99
- Pancreas Cancer94
- Esophageal Squamous Cell Carcinoma89
- Ovarian Cancer88
- Cystic Fibrosis78
Leading sponsors
- Fudan University104
- Sun Yat-sen University91
- 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
- Arizona174
- Texas148
- Florida135
- Massachusetts127
- Alabama123
- New York123
- Maryland87
- Ohio80
- Pennsylvania72
Recruiting studies7,916 total
- NCT06085560Enrolling by invitation
Choose and use an at-home colorectal cancer screening test
This study helps African American adults choose an at-home colorectal cancer screening test and make a plan to use it. It aims to make screening easier and more convenient for you.
Flint, MichiganAges 45–72 - NCT06076252Enrolling by invitation
Comparing two surgical methods for pancreatic cancer
This trial compares a modified surgical technique to the standard one for removing pancreatic tumors. It aims to see if the new method lowers the risk of a leak from the pancreas after surgery.
Zhanjiang, GuangdongAges 18–75 - NCT06061328Enrolling by invitation
Project OASIS: Finding better ways to improve care for cirrhosis
This trial tests different approaches to help doctors and hospitals improve care for veterans with cirrhosis. If you have cirrhosis and are not post-transplant or currently being treated for liver cancer, you might be able to join and help find the best strategies.
Pittsburgh, PennsylvaniaAges 18 years+ - NCT06048926Enrolling by invitation
Carrelizumab with chemoradiation for advanced esophageal cancer
This trial tests combining the immunotherapy drug carrelizumab with standard chemotherapy and radiation for people with advanced esophageal cancer that cannot be surgically removed. It aims to see if this combination can help shrink or control the tumor.
NanjingAges 18–75 - NCT06041906Enrolling by invitation
International registry for congenital portosystemic shunt
This registry is gathering information from people who have a rare liver blood vessel problem they were born with (congenital portosystemic shunt). By joining, you help researchers learn more about this condition and improve future care.
New Haven, ConnecticutAges 1 day+ - NCT05956379Enrolling by invitation
Exercise and monitoring study for chronic hepatitis B with fatty liver
This study follows adults with chronic hepatitis B who also have fatty liver and tests an exercise approach to see how it affects liver health. You may be followed over time and helped with an exercise plan if you qualify.
Taipei, Zhongzheng Dist.Ages 18–70 - NCT05889806Enrolling by invitation
Study uses blood and tissue samples for gene and protein testing
This study collects and analyzes your donated samples (like blood or other biospecimens) to look for patterns in genes and proteins. The results may help researchers understand disease biology and improve future tests or treatments.
New Orleans, LouisianaAges 18 years+ - NCT05877456Enrolling by invitation
Checking a polyp-removal scoring tool for doctors
This study tests and confirms a scoring tool (GPAT) that helps describe how well doctors perform polyp removal during endoscopy. It may help standardize training and assessment, which can improve consistency in care.
Ghent, GentAges 18–100 - NCT05844449Enrolling by invitationPhase 3
Check long-term safety and effectiveness of CF medicines
This Phase 3 study looks at how well and how safely Vanzacaftor/Tezacaftor/Deutivacaftor works over the long term in people with cystic fibrosis who already took the study medicine before. It may help confirm the best long-term plan and spot important safety issues.
Orange, CaliforniaAges 1 year+ - NCT05812339Enrolling by invitation
Mapping tests for stomach symptoms using body-surface sensors
This study checks whether a noninvasive “mapping” test placed on the belly and chest can help tell apart people with certain upper stomach symptoms from healthy controls. It may help researchers better understand stomach function and symptoms without relying only on invasive tests.
Calgary, AlbertaAges 18 years+ - NCT05807763Enrolling by invitation
Laparoscopic hiatal hernia repair guided by FLIP testing
This trial studies a way to guide laparoscopic surgery for a paraesophageal (hiatal) hernia using special measurements during the operation (FLIP) and an endoscopy check. It may help doctors choose the most appropriate surgical wrap to better control reflux after surgery.
Evanston, IllinoisAges 18 years+ - NCT05762055Enrolling by invitation
Compare two neck fusion methods for arthritis pain
This study compares two ways of doing neck fusion surgery for people with age-related (degenerative) problems in the cervical spine. It may help surgeons learn which method works best for healing and long-term outcomes.
Dallas, TexasAges 18–99 - NCT05727852Enrolling by invitation
Breath and heart tests to study lung disease stiffness
This study uses breath analysis and heart/electrical heart testing to look at how stiff the arteries are in people with long-term lung conditions. It may help researchers better understand lung disease effects on the cardiovascular system.
MoscowAges 18 years+ - NCT05725967Enrolling by invitation
Endoscopic and bariatric procedures for obesity
This study looks at people who are having obesity-related procedures, including options done with a scope (endoscopic) and revision after prior bariatric surgery. It may help doctors understand outcomes and improve care for people undergoing these treatments.
Boston, MassachusettsAges 18–80 - NCT05706025Enrolling by invitation
Testing a capsule to screen for Barrett’s and esophageal cancer
This study checks whether a swallowable capsule can help find signs of Barrett’s esophagus or esophageal cancer (or related risk) before or around an endoscopy. The goal is to see if this less invasive sampling method could improve screening.
Aurora, ColoradoAges 45 years+ - NCT05686837Enrolling by invitation
Study of how lung bacteria spreads in people with cystic fibrosis
This trial follows people with cystic fibrosis to better understand how “nontuberculous mycobacteria” (a type of lung germ) spreads between healthcare visits and care settings. It may help improve future prevention and monitoring strategies for CF patients who have had these bacteria.
Denver, ColoradoAges 1 month–99 years - NCT05678491Enrolling by invitation
Endoscopic treatment for reflux after gastric sleeve surgery
This trial studies an endoscopic procedure to treat gastroesophageal reflux disease (GERD) in people who had gastric sleeve surgery. It may help if reflux symptoms are not controlled on once-daily acid medicine (PPI) or if you cannot tolerate it and want an alternative.
TrondheimAges 18–70 - NCT05659147Enrolling by invitationPhase 4
MRI study of pancreas function in children with pancreatic issues
This study uses a special pancreas MRI to see how well the pancreas works and how pancreas disease changes over time. It also compares MRI findings in children with different pancreas conditions, including suspected pancreatic insufficiency and episodes of pancreatitis.
Cincinnati, OhioAges 5–21 - NCT05613153Enrolling by invitation
Peppermint oil for children with bladder and bowel problems
This trial tests whether peppermint oil can improve bladder and bowel control problems in children who did not get better with behavior-based treatment. If it works, it may reduce symptoms and improve daily bathroom habits.
Orange, CaliforniaAges 8–17 - NCT05600933Enrolling by invitation
Providing tumor samples to find new treatment targets
This study collects tumor tissue and related blood tests from people who already need a biopsy or surgery as part of their usual care. Researchers use the samples to learn what drives the tumor and how the tumor environment may affect treatment, which could help develop future therapies.
Bethesda, MarylandAges 18 years+ - NCT05573542Enrolling by invitation
Study early Parkinson signs in people with IBS
This study looks for early clues of Parkinson’s disease in people who have IBS (irritable bowel syndrome), and compares them with people without IBS. The goal is to understand whether gut symptoms or test results can help spot Parkinson’s earlier.
ÖrebroAges 18–85 - NCT05569980Enrolling by invitation
Study of rectal prolapse surgery in the Nordic region
This study looks at people who are having surgery for rectal prolapse. The goal is to learn more about outcomes and care for patients after surgery.
Aarhus NAges 18 years+ - NCT05563259Enrolling by invitation
Brain and memory testing in fatty liver disease
This study checks how well your brain and memory work in people with non-alcoholic fatty liver disease. It also looks at brain function with special assessments, which may help researchers understand what changes happen with this condition.
Nanjing, JiangsuAges 20–75 - NCT05551559Enrolling by invitation
How bariatric surgery changes liver metabolism in fatty liver disease
This study looks at how bariatric (weight-loss) surgery affects how your liver processes nutrients in people with non-alcoholic fatty liver disease. It may help researchers understand what changes in the body after surgery and whether that could guide better future care.
HelsinkiAges 18–75
Common questions
- How many digestive system clinical trials are recruiting?
- Clin2 is tracking 7,916 recruiting gastroenterology studies from the U.S. registry right now, out of 12,516 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.