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
- NCT04858412Recruiting
Amino acid supplement to help people with COVID-19 and alcohol liver disease
This study tests whether an HMB-enriched amino acid supplement can improve outcomes in adults who have COVID-19 pneumonia, especially those with alcohol-related liver disease. The trial compares results in people with alcohol liver disease versus those without, to see if the supplement helps during recovery.
Cleveland, OhioAges 21 years+ - NCT04859088Recruiting
Biologics plus partial tube-feeding for Crohn’s disease
This study tests whether starting adalimumab along with partial enteral (tube or drink) nutrition helps control active Crohn’s disease. It may help reduce symptoms and inflammation compared with standard care alone.
Glasgow, ScotlandAges 16 years+ - NCT04861558RecruitingPhase 3
Warm chemotherapy placed in the abdomen to treat colon cancer
This Phase 3 trial tests whether heating chemotherapy and delivering it directly into the abdomen (along with standard surgery for cancer spread) works better for colon cancer that has spread to the lining of the abdomen. It may help control the cancer after surgery, especially when the spread is mainly in the abdomen (and possibly the liver or lungs).
AhmedabadAges 18–79 - NCT04864054RecruitingPhase 1/Phase 2
Study T-cell therapy for advanced liver cancer
This trial tests a custom immune-cell treatment made to target a marker (GPC3) found on some liver cancers. It’s for adults with advanced HCC whose cancer has worsened after standard treatment or who couldn’t tolerate it.
Duarte, CaliforniaAges 18 years+ - NCT04867408Recruiting
Using bowel scope images to improve inflammatory bowel disease training
This study uses pictures taken during routine bowel scope (endoscopy) to build and test a computer system for training and research in inflammatory bowel disease. It may help doctors and trainees interpret scope images more consistently over time.
Hull, East YorkshireAges 16–99 - NCT04868149RecruitingPhase 3
Laparoscopic versus open ALPPS to regrow liver before surgery
This study compares two ways of doing a staged liver surgery (ALPPS) to help regrow enough liver for people with certain liver cancers. It looks at outcomes and how well the remaining liver grows after surgery, using different surgical approaches.
Hong KongAges 18 years+ - NCT04871399Recruiting
Right colon cancer surgery with more thorough tissue removal
This trial compares a more complete surgery (removing the right colon and surrounding tissue more thoroughly) versus the usual right-colon surgery. It aims to see if the more thorough approach improves outcomes for people with non-metastatic right colon cancer.
Grosseto, ArezzoAges 18–85 - NCT04871412RecruitingPhase 3
Surgery care program for lung or upper GI cancer patients
This trial tests an “integrative” support program around the time of cancer surgery to see if it improves care and outcomes for people having surgery for lung, stomach, or esophagus cancer. It may help by adding extra structured support during the peri-operative (around-surgery) period.
Ottawa, OntarioAges 18 years+ - NCT04873258Recruiting
Test a non-invasive tool to screen for fat-related liver disease
This study looks at a new non-invasive screening method to predict metabolic dysfunction–associated steatotic liver disease (MASLD), a condition where fat builds up in the liver. The goal is to help identify people who may be at risk without needing invasive tests.
London, LondonAges 18–80 - NCT04873102RecruitingPhase 2
Danazol for low blood counts in some people with cirrhosis
This Phase 2 study tests danazol to improve low blood counts (low white blood cells and/or low platelets) in people with certain types of cirrhosis. It also looks at who may benefit, especially those with specific inherited blood-telomere changes.
Los Angeles, CaliforniaAges 18 years+ - NCT04880356Recruiting
Study of very rare inherited brain diseases over time
This study follows adults over time who have a very rare inherited brain disease, or whose illness seems like it may run in families. The goal is to better understand these conditions and how they progress.
Milan, MilanoAges 18 years+ - NCT04883905Recruiting
Registry study for people with acute hepatic porphyria
This study is a registry (a list) of people diagnosed with acute hepatic porphyria. It helps researchers learn about the condition and track health information over time; it doesn’t test a new drug in the way treatment trials do.
Birmingham, AlabamaAges 12 years+ - NCT04886635Recruiting
Surgery timing after chemoradiation for esophageal cancer
This study looks at whether having surgery at the right time after chemoradiation improves outcomes for people with esophageal cancer. You might qualify if you have had (or are planning) chemoradiation and then are going to have surgery to remove the tumor.
Rotterdam, South HollandAges 18 years+ - NCT04890171Recruiting
Endoscopic removal vs surgery for early stomach cancer type
This trial compares two ways to treat early stomach cancer: removing it through an endoscope versus doing an operation. It’s meant for a specific stomach-cancer type (undifferentiated) that has not spread, to see which approach may be better.
Goyang-si, Gyeonggi-doAges 19–75 - NCT04890613RecruitingPhase 1
CX-5461 for cancers with BRCA or HRD gene changes
This Phase 1 trial tests CX-5461, a new cancer medicine, in people with certain solid tumors that have BRCA1/2 or related “HRD” gene mutations. The goal is to find out how the drug works, what dose is tolerable, and whether it can help shrink tumors.
Santa Monica, CaliforniaAges 18 years+ - NCT04892849Recruiting
PD-1/PD-L1 immunotherapy plus radiation for solid tumors
This study tests whether combining an immune system medicine (PD-1/PD-L1 inhibitor) with radiation can improve outcomes in people with certain solid cancers. It also looks for blood or tissue “biomarkers” that may explain who benefits most.
Erlangen, BavariaAges 18 years+ - NCT04894643Recruiting
Pre-surgery proton radiation plus chemo for borderline pancreatic cancer
This trial tests whether giving proton radiation and chemotherapy before surgery can shrink or control “borderline resectable” pancreatic cancer so it can be removed more effectively. It may help by improving treatment response while planning for surgery afterward.
Wiener Neustadt, Lower AustriaAges 18 years+ - NCT04894370RecruitingPhase 2
Trial tests immunotherapy plus chemotherapy and radiation for anal cancer
This Phase 2 trial studies a combination of immunotherapy (spartalizumab), chemotherapy (mDCF includes docetaxel), and radiation to treat metastatic or returning anal squamous cell cancer. It may help shrink tumors and improve outcomes compared with standard approaches, but eligibility is strict to keep participants safe.
BesançonAges 18 years+ - NCT04896255Recruiting
Long-term follow-up of hepatitis B treatments
This study looks at long-term outcomes in people with chronic hepatitis B who take antiviral medicines or receive interferon. It may help doctors understand which treatments work best over time and who is most likely to benefit.
ShanghaiAges 18 years+ - NCT04896268Recruiting
Radiofrequency vs Doppler-guided surgery for hemorrhoids
This study compares two treatment approaches for hemorrhoids that are grades II–III and did not improve with non-surgical treatments. It looks at safety and whether the treatments work better for symptom relief.
Saint-DoulchardAges 18–75 - NCT04896684Recruiting
Study collecting gut health information from adults’ scans
This study is looking at people who need an intestinal scope (endoscopy) for gut symptoms or bowel conditions like IBS, IBD, or possible colorectal cancer. Your results may help doctors better understand these long-term conditions and improve follow-up care.
ToulouseAges 18–99 - NCT04899102Recruiting
Intermittent fasting for fatty liver disease in adults
This study tests whether intermittent fasting can improve fatty liver disease (NAFLD) by reducing liver fat. It focuses on adults with confirmed fatty liver and extra liver fat seen on a special MRI scan.
Boston, MassachusettsAges 18 years+ - NCT04899908RecruitingPhase 2
Brain radiation with or without gadolinium nanoparticles for brain metastases
This trial tests whether adding tiny gadolinium-containing nanoparticles to standard brain radiation can better control brain metastases from certain cancers. It is for people with tumors that have grown after immunotherapy, are from certain cancers (like melanoma, GI, or HER2+ breast), are cystic, are large, or have come back after prior radiation.
Boston, MassachusettsAges 18 years+ - NCT04900818RecruitingPhase 1
Givastomig for advanced solid cancers, including gastric and pancreas
This Phase 1 trial tests how safe and effective givastomig (TJ033721) is for advanced or metastatic solid tumors. It may help people whose cancer has grown despite standard treatment, or—if in the combination parts—specific cancers that meet certain lab test and tumor-marker requirements.
Orange, CaliforniaAges 18 years+
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.