Gastroenterology
Digestive system clinical trials
Conditions of the stomach, intestines, liver, and the rest of the digestive tract. We’re tracking 7,599 recruiting studies in this area right now.
By phase
- Not applicable4,683
- Phase 21,187
- Phase 1568
- Phase 3457
- Phase 1/Phase 2366
- Phase 4228
- Phase 2/Phase 3110
Top conditions
- Colorectal Cancer478
- Pancreatic Cancer287
- Gastric Cancer283
- Hepatocellular Carcinoma256
- Esophageal Cancer189
- Rectal Cancer168
- Breast Cancer146
- Crohn Disease134
- Ulcerative Colitis129
- Colon Cancer114
- Hepatocellular Carcinoma (HCC)112
- Liver Cancer99
- Lung Cancer95
- Inflammatory Bowel Diseases94
- Pancreas Cancer91
- Ovarian Cancer89
- Esophageal Squamous Cell Carcinoma86
- Cystic Fibrosis77
Leading sponsors
- Fudan University101
- Sun Yat-sen University85
- Mayo Clinic75
- Second Affiliated Hospital, Zhejiang University, School of Medicine56
- Chinese University of Hong Kong55
- M.D. Anderson Cancer Center55
- Assistance Publique - Hôpitaux de Paris53
- Sixth Affiliated Hospital, Sun Yat-sen University51
- National Cancer Institute (NCI)49
- National Taiwan University Hospital45
Where studies are running
- California438
- Arizona189
- Texas140
- Alabama129
- Florida128
- New York120
- Massachusetts119
- Maryland88
- Ohio79
- Illinois69
Recruiting studies7,599 total
- NCT07517107RecruitingPhase 2
Blood tests to guide gastric cancer treatment decisions
This study uses special blood tests to detect cancer DNA and help doctors decide the best treatment plan for gastric cancer. The goal is to improve outcomes by personalizing therapy based on how your cancer responds.
ShanghaiAges 18 years+ - NCT07524114Recruiting
Blood test to find leftover cancer after treatment
This study uses a blood test to look for tiny bits of cancer DNA after you finish treatment. It may help doctors know if cancer is still there and guide next steps.
Toronto, OntarioAges 18 years+ - NCT07524244Recruiting
Ketogenic and carnivore diets for IBD and rheumatoid arthritis
This study tests whether special diets (ketogenic or carnivore/meat-based) can help reduce inflammation and symptoms in people with inflammatory bowel disease or rheumatoid arthritis. You'll follow dietary guidelines for 3 weeks, then continue in the study while researchers track how you respond.
Charlottesville, VirginiaAges 18–64 - NCT07519850Recruiting
How Perianal Disease Affects Sexual Health and Quality of Life
This study explores how chronic perianal conditions—like anal fistulas or pilonidal disease—affect patients' sexual function and relationships. Researchers will ask you to complete surveys about your symptoms and sexual health to better understand this impact and help future patients.
Thessaloniki, ThessalonikiAges 18 years+ - NCT07519915Recruiting
Understanding Nerve Stimulation for Bowel Problems in Children
This research study looks at using sacral neuromodulation—a treatment that uses mild electrical stimulation of nerves in the lower spine—to help children with bowel movement problems. Researchers want to understand how well this treatment works and what improvements matter most to patients and families.
ErlangenAges 3–18 - NCT07520552Recruiting
Comparing surgical techniques for chronic anal fissures
This study compares two surgical approaches to treat chronic anal fissures (painful tears in the anus) that haven't healed with conservative treatment. The goal is to determine which technique is safer and more effective.
Çanakkale, ÇanakkaleAges 18 years+ - NCT07521111Recruiting
Stomach Blood Flow and Feeding Tolerance in Critical Illness
This study examines whether measuring blood flow in the stomach using ultrasound can predict which hospitalized patients will struggle to tolerate tube feeding. Researchers hope this simple test might help doctors adjust feeding plans earlier and improve patient outcomes.
ShanghaiAges 18 years+ - NCT07523919Recruiting
How fitness and breathing affect colorectal cancer recovery
This study looks at how your physical fitness and lung function may affect how well you do after colorectal cancer treatment. Researchers will test your strength, movement, and breathing to understand what helps people recover better long-term.
Merkez, Gümüşhane ProvinceAges 18–80 - NCT07517432Recruiting
Registry tracking robotic surgery outcomes in gastric cancer
This study follows patients with stomach cancer who have robotic-assisted surgery to understand how well this advanced surgical approach works. By collecting information from multiple hospitals worldwide, researchers can learn what outcomes patients experience and how to improve care.
Hong KongAges Any age - NCT07520578RecruitingPhase 3
Doctor Support to Complete Colon Screening After Positive Test
This study tests whether early information and encouragement from your primary care doctor helps you complete a follow-up colonoscopy after an abnormal screening test for colorectal cancer. The goal is to reduce delays and ensure people get the care they need quickly.
Tours, FranceAges 50–75 - NCT07524439Recruiting
Beta-glucan cream for incontinence-related skin irritation
This study tests whether a special cream containing beta-glucan (a natural ingredient) can soothe and protect skin damaged by urine or stool leakage. You'd apply the cream during a hospital stay of at least one week to see if it helps healing.
Edmonton, AlbertaAges 18 years+ - NCT06705153Recruiting
Laughter yoga for irritable bowel syndrome
This study tests whether laughter yoga can help reduce IBS symptoms like belly pain and bloating, and also improve mood, sleep, and overall quality of life. You would join video calls where you practice special laughing exercises (no jokes needed) and then answer questionnaires.
Erzurum, YakutiyeAges 18–90 - NCT06488274Recruiting
Study of a new infant formula for digestive issues in babies
This trial is testing a new infant formula to see if it helps with common digestive problems like spitting up, colic, or constipation in babies up to 4 months old. It aims to improve symptoms and comfort for infants who are formula-fed.
NiceAges Up to 4 months - NCT07514494RecruitingPhase 2
Intensive Ovarian Cancer Treatment Using Pressurized Chemotherapy
This trial tests a special chemotherapy delivery method called PIPAC (pressurized intraperitoneal aerosol chemotherapy) for ovarian cancer that has spread within the abdomen. The goal is to deliver cancer-fighting drugs more effectively directly to where the cancer is.
BalashikhaAges 18–75 - NCT07511218RecruitingPhase 1
Study of AHB-171 for stable chronic hepatitis B
This trial tests a new investigational drug called AHB-171 for people with chronic hepatitis B who are already stable on standard antiviral therapy. It aims to see if the drug is safe and may help control the virus better.
Ch’ang-ch’un, JilinAges 18–65 - NCT07507513RecruitingPhase 2
New drug for moderate to severe ulcerative colitis
This study tests a new medication (called 627) for people with moderate to severe ulcerative colitis who haven't responded well to or couldn't tolerate other treatments. The goal is to see if it can safely reduce inflammation and improve symptoms.
Guangzhou, GuangdongAges 18–75 - NCT07513181RecruitingPhase 2
Testing ATH-063 for Hard-to-Treat Ulcerative Colitis
This study tests a new drug called ATH-063 to see if it can help people with moderate-to-severe ulcerative colitis (a condition causing inflammation and bleeding in the colon) who haven't responded well to previous biologic treatments. The goal is to find out if this new drug is safe and effective.
Miami, FloridaAges 18–75 - NCT06749613Recruiting
Digestive enzymes for IBS after diet response
This trial tests whether a digestive enzyme supplement can help people with irritable bowel syndrome (IBS) whose symptoms returned after they previously improved on a special low-FODMAP Mediterranean diet.
Chaïdári, AthensAges 18–65 - NCT04803994RecruitingPhase 3
Atezolizumab plus bevacizumab versus TACE for liver cancer
This trial studies whether a combination of immune therapy (atezolizumab) and a blood-vessel-targeting drug (bevacizumab) works better than a standard procedure called TACE for people with intermediate-stage liver cancer (HCC). It may help shrink tumors and help patients live longer with fewer complications.
GrazAges 18 years+ - NCT07513116Recruiting
Intermittent fasting for people at high risk of pancreatic cancer
This study tests whether following an intermittent fasting schedule (eating only during certain hours) can help people at high risk for pancreatic cancer. The trial uses an app to track eating patterns and fasting times, aiming to see if this approach may reduce cancer risk.
Houston, TexasAges 18 years+ - NCT07509008RecruitingPhase 1/Phase 2
Immune cells in the belly for stomach cancer spread
This trial tests a new type of immune cell (called a CAR NK cell) given directly into the belly, along with standard surgery and chemotherapy, for stomach cancer that has spread to the belly lining. The goal is to see if this treatment is safe and can help control the cancer.
Houston, TexasAges 18 years+ - NCT07510191RecruitingPhase 4
Comparing two ways to treat Crohn's disease if TNFi isn't working well
This trial tests if adding a low dose of a newer pill (upadacitinib) to your current TNF inhibitor (TNFi) works better than increasing the dose of your TNFi alone. It is for people with Crohn's disease who have had some improvement on their TNFi but still have active disease.
Guangzhou, GuangdongAges 18–65 - NCT07510308RecruitingPhase 1
Vaccine trial for advanced colorectal cancer
This trial tests a personalized vaccine made from your own tumor cells for advanced colorectal cancer that is mismatch repair proficient (pMMR). It aims to see if the vaccine can help when standard treatments have stopped working.
Chengdu, SichuanAges 18–75 - NCT07510984Recruiting
Heterotopic gastric mucosa and quality of life study
This study looks at how a condition called heterotopic gastric mucosa (HGM), which is stomach tissue in the wrong place in the esophagus, affects symptoms and quality of life. If you are scheduled for an upper endoscopy and are at least 18, you may be able to join.
Bottrop, North Rhine-WestphaliaAges 18 years+
Common questions
- How many digestive system clinical trials are recruiting?
- Clin2 is tracking 7,599 recruiting gastroenterology studies from the U.S. registry right now, out of 11,991 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.