Gastroenterology
Digestive system clinical trials
Conditions of the stomach, intestines, liver, and the rest of the digestive tract. We’re tracking 7,890 recruiting studies in this area right now.
By phase
- Not applicable4,918
- Phase 21,185
- Phase 1582
- Phase 3465
- Phase 1/Phase 2393
- Phase 4236
- Phase 2/Phase 3111
Top conditions
- Colorectal Cancer491
- Gastric Cancer296
- Pancreatic Cancer290
- 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
- Florida133
- Massachusetts128
- New York123
- Alabama122
- Maryland86
- Ohio80
- Pennsylvania72
Recruiting studies7,890 total
- NCT04946773Recruiting
Deep liver testing study for cancer and non-cancer liver disease
This study looks closely at how the liver’s immune system and disease processes work in people with liver problems, including some with suspected or confirmed liver/bile duct cancer. You may also be offered a liver needle sample (FNA) if it’s safe for you.
Oxford, OxfordshireAges 18–75 - NCT04946448Recruiting
Test a Crohn’s diet and biologic medicine combination
This study tests whether combining a specific diet with biologic medicines can reduce active inflammation and symptoms of Crohn’s disease. It may help people who still have active disease in the bowel despite prior care.
LeuvenAges 18–80 - NCT04949282Recruiting
Lutetium-177 treatment for advanced somatostatin-positive tumors
This study looks at outcomes for adults with tumors that are advanced (can’t be fully removed or has spread) and are getting worse, where tests show somatostatin receptors. It aims to understand how treatment with lutetium-177 helps people in this situation.
Santiago de Compostela, A CoruñaAges 18–100 - NCT04949737Recruiting
Study stomach bacteria and stomach cancer in Martinique adults
This study looks at how common Helicobacter pylori (a common stomach germ) is in adults with stomach cancer in Martinique, and how it relates to stomach cancer. It mainly involves answering questionnaires and allowing study details to be collected to better understand risk and patterns.
Fort-de-FranceAges 18 years+ - NCT04949646Recruiting
Nerve monitoring during rectal cancer surgery
This trial studies whether checking pelvic nerve signals during rectal cancer surgery (total mesorectal excision) is helpful. It may help surgeons avoid nerve injury while removing the cancer.
LarissaAges 18–90 - NCT04951804Recruiting
EUS pain block for pancreatic cancer, with or without bupivacaine
This trial tests whether a nerve-blocking procedure during an endoscopy can reduce pain from pancreatic cancer. Participants will get the procedure either with or without bupivacaine, a local numbing medicine.
Montreal, QuebecAges 18 years+ - NCT04952272RecruitingPhase 1
Shots into the tumor to boost the immune system
This Phase 1 study tests an injection given directly into an advanced solid tumor to help the immune system better recognize and attack cancer. It may help people with advanced solid tumors, but the goal at this early stage is mainly to check safety and how the treatment works.
Guangzhou, GuangdongAges 18–80 - NCT04954599RecruitingPhase 1/Phase 2
CP-506 for hard-to-treat cancers with DNA repair defects
This Phase 1/2 study tests CP-506 in people with advanced solid tumors that have specific DNA repair problems (homologous recombination or Fanconi anemia-related defects). It may be used alone or combined with carboplatin or an immune therapy, aiming to shrink tumors or improve control when standard options are limited.
BrusselsAges 18 years+ - NCT04958720Recruiting
Registry for esophagus and stomach cancer patients
This study keeps an organized record of people diagnosed with esophagus, gastroesophageal junction, or stomach cancer. It helps researchers learn from real-world outcomes, based on health information collected over time.
Alicante, AlicanteAges 18–100 - NCT04959604Recruiting
Fluorescent dye mapping to find lymph nodes in colon cancer
This trial studies whether a fluorescent dye used during an exam can help doctors map (find) lymph nodes in colon cancer. It may help improve how surgeons plan treatment and decide what to remove.
HamburgAges 18–100 - NCT04960826Recruiting
Study of an environmental risk factor in Crohn’s
This study looks at how an environmental factor may be linked to Crohn’s disease, especially around the time you need certain bowel surgery. Your experience may help researchers understand risk and how it relates to your gut health.
LilleAges 25–60 - NCT04965545Recruiting
Tests for diagnosing Wilson disease using special lab findings
This trial is for people who already have a genetic diagnosis of Wilson disease. It looks at whether specific lab tests and a physical eye finding can help confirm and support the diagnosis.
Hangzhou, ZhejiangAges 6–65 - NCT04964310Recruiting
Testing genetic risk for acetaminophen-related liver injury
This study looks at whether certain genes can predict who is more likely to get liver injury after taking acetaminophen (also found in some cold/flu medicines). By comparing people who were affected with people who were not, it may help doctors identify higher-risk patients in the future.
Nanjing, JiangsuAges 14 years+ - NCT04970446RecruitingPhase 1/Phase 2
Fecal transplant to restore gut microbes in Crohn’s
This Phase 1/2 study tests whether a fecal microbiome transplant (FMT) can reduce active inflammation in people with Crohn’s disease. It’s designed for people who currently have signs of active bowel inflammation and can attend regular procedure visits.
Melbourne, VictoriaAges 18–70 - NCT04970836Recruiting
Hepatitis B revaccination for young adults in Taiwan
This study looks at how well your immune system responds after getting 1–2 extra doses of the hepatitis B vaccine. It may help doctors understand who needs revaccination and how to strengthen protection.
TaipeiAges 20–36 - NCT04969315RecruitingPhase 1/Phase 2
Drug TT-10 and TT-4 for advanced solid tumors
This early-phase trial tests two investigational drugs—TT-10 and TT-4—alone and together in people with advanced solid cancers. The study is designed to find safe doses and see if the treatment can shrink tumors or slow cancer growth.
Los Angeles, CaliforniaAges 18 years+ - NCT04969731RecruitingPhase 3
Immune cell therapy plus gemcitabine after pancreas surgery
This Phase 3 trial tests whether adding an immune cell therapy (Immuncell-LC) to the standard chemotherapy drug gemcitabine helps people with resectable pancreatic cancer after surgery. It aims to improve safety and outcomes like preventing the cancer from coming back.
Seoul, Daehak-ro, Jongno-guAges 19–80 - NCT04970056Recruiting
Pancreatic cancer risk and early-detection registry study
This study builds a database of people at higher risk for pancreatic cancer (or certain early warning findings) to help find better ways to detect the disease early. You may be asked to complete health questionnaires and possibly donate a blood/saliva/swab sample.
Phoenix, ArizonaAges 18–90 - NCT04971577RecruitingPhase 2/Phase 3
Simvastatin for alcohol-related liver scarring in stable adults
This trial studies whether simvastatin (a cholesterol medicine) can improve or slow scarring of the liver caused by long-term alcohol use. Participants must have confirmed liver fibrosis on biopsy and be in a stable (compensated) phase of liver disease.
BarcelonaAges 18 years+ - NCT04972799Recruiting
Fat injection for severe bowel leakage using a placebo comparison
This study tests whether injecting your own body fat around the anal muscle area can reduce severe fecal (bowel) leakage compared with a placebo (fake) treatment. It’s designed to be safe and more effective than doing nothing, with participants getting both treatments in a cross-over design.
AngersAges 18 years+ - NCT04973306RecruitingPhase 2/Phase 3
Chemo-immunotherapy before surgery versus chemo-radiation
This trial compares adding immunotherapy to standard chemo-radiation before surgery for locally advanced, operable esophageal squamous cell cancer. It aims to improve how well the tumor responds and whether patients do better after surgery.
ShanghaiAges 18–75 - NCT04974593RecruitingPhase 3
Test breath testing to guide a lactose-free diet in IBS
This trial studies whether a breath test (hydrogen/methane lactose testing) can predict who with IBS will improve on a lactose-free diet. If you have moderate-to-severe IBS and regularly eat lactose-containing foods, the test result may help tailor your diet approach.
Jette, Brussels CapitalAges 18–75 - NCT04973423Recruiting
Testing extra check-ins for Crohn’s using stool tests and MRI
This study checks whether adding an extra, cross-body “transmural” evaluation (looking at inflammation throughout the bowel) improves care for adults with Crohn’s who are starting or receiving biologic (biotherapy) treatment. It uses close follow-up with stool calprotectin (a marker of gut inflammation) to see if this approach helps control inflammation.
AmiensAges 18 years+ - NCT04980287Recruiting
Surgery trial for colon cancer spread to stomach-area fat
This trial studies whether a specific surgery that removes the colon’s associated tissue (and part of the nearby stomach-area tissue) improves outcomes for certain colon cancer cases that are at risk of spreading there. If you qualify, your doctors will compare your treatment approach as part of the study to see if it helps.
Wuhan, HubeiAges 18–75
Common questions
- How many digestive system clinical trials are recruiting?
- Clin2 is tracking 7,890 recruiting gastroenterology studies from the U.S. registry right now, out of 12,399 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.