Gastroenterology
Digestive system clinical trials
Conditions of the stomach, intestines, liver, and the rest of the digestive tract. We’re tracking 7,607 recruiting studies in this area right now.
By phase
- Not applicable4,687
- Phase 21,190
- Phase 1566
- Phase 3457
- Phase 1/Phase 2368
- Phase 4229
- Phase 2/Phase 3110
Top conditions
- Colorectal Cancer480
- Pancreatic Cancer289
- Gastric Cancer283
- Hepatocellular Carcinoma256
- Esophageal Cancer189
- Rectal Cancer168
- Breast Cancer147
- Crohn Disease134
- Ulcerative Colitis129
- Colon Cancer114
- Hepatocellular Carcinoma (HCC)112
- Liver Cancer99
- Lung Cancer95
- Inflammatory Bowel Diseases94
- Ovarian Cancer90
- Pancreas Cancer90
- Esophageal Squamous Cell Carcinoma86
- Cystic Fibrosis76
Leading sponsors
- Fudan University100
- 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)50
- National Taiwan University Hospital45
Where studies are running
- California443
- Arizona189
- Texas140
- Alabama129
- Florida127
- Massachusetts120
- New York120
- Maryland88
- Ohio80
- Illinois69
Recruiting studies7,607 total
- NCT06215222Recruiting
Studying gut bacteria in IBS and digestive issues
This study uses a tiny capsule to collect samples from your small intestine to learn about gut bacteria in people with IBS or other functional gut disorders. It could help researchers understand what causes digestive symptoms.
Redwood City, CaliforniaAges 18–70 - NCT04936581Recruiting
Quality of life after rectal cancer surgery
This study looks at patient-reported outcomes—how you feel and function—after surgery for rectal cancer. It may help doctors better understand recovery and well-being after different surgical approaches and treatments.
MadridAges 18–100 - NCT05967910Recruiting
How stress affects immunotherapy for esophageal cancer
This study looks at whether chronic stress changes how well immunotherapy (ICI therapy) works in people with esophageal cancer. It may help doctors understand who benefits most from treatment and how stress could affect outcomes.
Changsha, HunanAges 18–75 - NCT06218810RecruitingPhase 2
Combination therapy for advanced MSS, RAS-mutated colorectal cancer
This trial tests a new combination of three medicines for people with a certain type of advanced colorectal cancer that has not been treated before. It aims to see if adding an immunotherapy drug (Cadonilimab) to standard chemotherapy and a targeted therapy (Bevacizumab) can help shrink tumors and delay disease progression.
ShanghaiAges 18–75 - NCT06219096Recruiting
Using a dye to guide liver tumor surgery with a camera
This trial tests a new way to help surgeons see liver tumors more clearly during keyhole (laparoscopic) surgery. A special dye (ICG) is used with a camera to guide the surgeon in removing just the right part of the liver. It may lead to safer and more precise surgery for people with liver cancer.
Chengdu, SichuanAges 18–75 - NCT06222255Recruiting
Transanal irrigation for sleep issues after rectal cancer surgery
This trial tests if a special irrigation technique can improve sleep problems caused by low anterior resection syndrome (LARS) after rectal cancer surgery. It may help people who have ongoing bowel symptoms that disrupt sleep.
Seoul, Jongro-guAges 19–80 - NCT04282083Recruiting
Registry for adults with confirmed digestive neuroendocrine tumors
This is a registry study that collects medical information from adults with neuroendocrine tumors (NETs) that start in the digestive organs. It helps researchers understand these cancers better and may support future studies.
Rozzano, MilanAges 18 years+ - NCT06226857RecruitingPhase 3
Anti-EGFR for left-sided, RAS wild-type metastatic colorectal cancer
This trial tests whether anti-EGFR therapy works better for people with left-sided colorectal cancer that has spread, whose tumors do not have certain gene mutations (RAS wild-type). It is for those who have not yet had treatment for metastatic disease.
MoscowAges 18–99 - NCT05746897RecruitingPhase 1
First-in-human test of an anti-PVRIG drug for advanced cancers
This early-phase study tests NM1F (an anti-PVRIG antibody) in people with advanced solid tumors to see if it’s safe and whether it may work. It also includes pembrolizumab (a PD-1 “checkpoint” medicine), aiming to boost the immune system against the cancer.
Dallas, TexasAges 18 years+ - NCT06229041RecruitingPhase 3
Chemo and radiation with or without immunotherapy for high-risk rectal cancer
This trial tests if adding immunotherapy to standard chemotherapy and radiation before surgery helps shrink high-risk rectal cancer and prevent it from coming back. You may be a good fit if you have a specific type of advanced rectal cancer that hasn't spread to other parts of your body.
BeijingAges 18–75 - NCT05918094RecruitingPhase 3
Testing new chemo plan plus immunotherapy for stomach cancer
This phase 3 study compares two versions of a first-time treatment for HER2-negative advanced stomach or gastroesophageal cancer, both including immunotherapy (sintilimab). It looks for a safer or more effective way to slow cancer growth or improve outcomes.
Guangzhou, GuangdongAges 18–75 - NCT05450991Recruiting
Study outcomes in children with Hirschsprung’s disease
This study looks at long-term health and development outcomes in children who were diagnosed and treated for Hirschsprung’s disease or anorectal malformations. It uses both numbers and interviews to understand what happens over time after treatment, helping families and clinicians plan better care.
Liverpool, MerseysideAges Any age - NCT06229340RecruitingPhase 2
Two drug combinations for advanced cancer with RAS mutations
This trial tests two different treatment combinations (leflunomide alone or with MEK inhibitor and hydroxychloroquine) in people with advanced cancer that has a RAS mutation and has not responded to at least two prior therapies.
Saint PetersburgAges 18–85 - NCT07863258Recruiting
AI matchmaking for advanced liver cancer treatment
This study uses artificial intelligence to look at tumor samples and MRI scans from people with advanced liver cancer to help choose the best treatment. It aims to make treatment more personalized and effective.
AnderlechtAges 18 years+ - NCT07867522Recruiting
Preventing bile leaks after liver surgery in children
This study tests a way to prevent bile leaks after surgery to remove part of the liver in children. Bile is a digestive fluid made by the liver, and if it leaks after surgery it can cause problems. The approach involves a special technique during the operation to reduce the chance of this happening.
MoscowAges birth–18 years - NCT03432806Recruiting
Looking at tissue samples to guide colon cancer treatment
This study collects tissue, blood, and imaging samples from people having surgery for colon cancer or related liver tumors, to learn more about the disease and potentially improve future treatments.
Basking Ridge, New JerseyAges 18 years+ - NCT07865052Recruiting
Psychological support before complex stomach or intestinal surgery
This study tests whether a psychological program before major abdominal surgery can help reduce distress and improve recovery. Participants will receive extra mental health support to prepare for their operation.
Chicago, IllinoisAges 18 years+ - NCT06220617Recruiting
Early detection of colorectal cancer using blood tests
This study is looking for people newly diagnosed with colorectal cancer or advanced adenoma to help find better ways to detect the disease early using advanced lab tests on blood samples.
Hangzhou, ZhejiangAges 18 years+ - NCT06234306Recruiting
Genetic testing for small bowel cancer
This trial studies the genetic makeup of small bowel adenocarcinoma to find better treatments. It involves testing leftover tumor tissue from past biopsies or surgeries.
Aarhus NAges 18 years+ - NCT06063577Recruiting
A study to see if a special stitch can prevent hernia after belly surgery
This trial tests whether using a special type of suture (called Stratafix Symmetric) during surgery can help prevent an incisional hernia from forming after abdominal or gastrointestinal cancer surgery. If you are having certain types of major abdominal surgery, this study might be an option for you at the West Michigan Cancer Center.
Kalamazoo, MichiganAges 18 years+ - NCT05952947RecruitingPhase 1
Study drug for HPV18-positive solid tumors with a specific immune marker
This Phase 1 trial tests HRYZ-T101 injection for people whose solid cancer is HPV18-positive and who have the HLA-DRB1*0901 immune marker. It is meant for people whose cancer has returned or spread and who have few or no effective treatment options.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT06163729RecruitingPhase 2
Testing camrelizumab plus chemo and radiation before/after surgery for stomach-esophagus cancer
This trial tests combining the immunotherapy drug camrelizumab with chemotherapy and radiation before and after surgery for a specific type of stomach-esophagus cancer. It aims to see if this approach helps shrink the tumor and improve outcomes.
Beijing, Beijing MunicipalityAges 18–80 - NCT06242067RecruitingPhase 2
Second-line treatment for advanced colorectal cancer
This trial tests a new treatment for people with advanced colorectal cancer that has spread or come back after initial chemotherapy. It is for those who have already received standard first-line therapy and are now looking for a second treatment option.
Jinan, ShandongAges 18–75 - NCT02215889RecruitingPhase 1/Phase 2
Partial liver transplant for colon or rectal cancer spread to liver
This trial tests whether transplanting part of the liver can help people with colon or rectal cancer that has spread to the liver but cannot be removed with surgery. It also aims to make sure the cancer is limited mainly to the liver and that you are healthy enough for major treatment.
OsloAges 18 years+
Common questions
- How many digestive system clinical trials are recruiting?
- Clin2 is tracking 7,607 recruiting gastroenterology studies from the U.S. registry right now, out of 11,926 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.