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
- NCT04981119Recruiting
Test apheresis for CAR T manufacturing in HLA-A2 solid tumors
This trial studies how a process called apheresis is used to make CAR T cells for people with certain solid tumors. It is designed for tumors that have lost a specific immune marker (HLA-A*02), which may affect how well CAR T therapies work.
Gilbert, ArizonaAges 18 years+ - NCT04982653RecruitingPhase 2
Stitch type study to prevent hernia after liver surgery
This trial compares two ways of closing the belly incision after open liver surgery to see which best lowers the chance of getting an incisional hernia (a bulge near the scar). It may help by guiding surgeons toward the closure method that prevents hernias better.
Houston, TexasAges 18 years+ - NCT04986293Recruiting
CPAP or BiPAP to reduce motion during radiation
This study tests whether using a breathing machine (CPAP or BiPAP) can help keep you still during radiation treatment. This may improve how accurately radiation is delivered for certain cancers treated with curative intent.
Groningen, Provincie GroningenAges 18 years+ - NCT04988945RecruitingPhase 2
Immunotherapy with liver tumor radiation to shrink hard-to-remove liver cancer
This Phase 2 trial tests whether combining targeted liver procedures (TACE) and high-dose radiation (SBRT) followed by two immunotherapy drugs can “downstage” hepatocellular carcinoma (HCC), meaning make it smaller/less advanced. It may help some people become better candidates for future treatment by shrinking tumors.
Hong KongAges 18 years+ - NCT04993131Recruiting
Liver transplant for non-surgical bile duct cancer
This trial studies liver transplantation for people with a specific type of bile duct cancer near the liver that cannot be safely removed by surgery. It aims to improve outcomes by offering a transplant after the cancer responds to chemotherapy and spread has been ruled out on scans.
OsloAges 18 years+ - NCT04995224Recruiting
Study what causes long-term pain in new Crohn’s or colitis
This study looks at why some people develop long-term pain after being newly diagnosed with ulcerative colitis or Crohn’s disease. It may help researchers understand the pain process and improve future treatments.
LondonAges 18 years+ - NCT04996628Recruiting
Testing nerve pain signals to guide treatment for chronic pancreatitis pain
This study checks how your nerves respond to controlled touch and temperature tests, to help predict how well you’ll respond to procedures that relieve blockage in the main pancreatic duct. It may help doctors choose the most effective treatment for chronic pancreatitis pain.
Indianapolis, IndianaAges 18 years+ - NCT04997733RecruitingPhase 3
Stool transplant to maintain Crohn’s remission after stopping anti-TNF
This Phase 3 study tests whether transplanting stool bacteria can help people with Crohn’s stay in remission after they stop an anti-TNF medicine. It may help some patients who are currently doing well but need to come off anti-TNF treatment.
ParisAges 18–74 - NCT04997837RecruitingPhase 3
Adjuvant chemo with or without PD-1 for stomach cancer after surgery
This Phase 3 trial studies whether adding an immune medicine called PD-1 (given as an “inhibitor”) to standard chemotherapy and chemoradiation after stomach/GEJ cancer surgery can lower the risk of cancer coming back. You may qualify if you’ve had surgery removing the tumor and lymph nodes showed higher-risk disease.
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT04999228RecruitingPhase 4
Top-down versus step-up treatment for pediatric ulcerative colitis
This trial compares two treatment approaches for children newly diagnosed with ulcerative colitis: starting with stronger medicines right away versus beginning simpler and stepping up if needed. It may help your child learn which strategy controls symptoms better with fewer flare-ups.
Shanghai, Shanghai MunicipalityAges 6–18 - NCT04999007Recruiting
AI tool to help surgeons decide during rectal cancer surgery
This trial tests an artificial-intelligence support tool that helps surgeons make decisions during surgery for rectal cancer. If you qualify, the tool may be used alongside the surgical team to support safer, more effective care.
Wuhan, HubeiAges 18–85 - NCT05000294RecruitingPhase 1/Phase 2
Atezolizumab plus tivozanib for hard-to-treat “cold” cancers
This early-stage study tests whether combining atezolizumab and tivozanib can shrink advanced, hard-to-treat cancers that do not strongly activate the immune system (“immunologically cold”). It is for people whose cancer has already been treated or has no good standard options.
Gainesville, FloridaAges 18–99 - NCT05000697Recruiting
Watch-and-wait or chemo after rectal cancer radiation
This trial studies people with early-to-mid stage distal rectal cancer who may get radiation and chemotherapy, with an option that may include an extra drug (oxaliplatin). It also tests whether some people can safely follow a “watch and wait” plan instead of immediate additional treatment, aiming to reduce overtreatment while keeping cancer control.
Buenos AiresAges 18 years+ - NCT05002166Recruiting
Study of children with inflammatory bowel disease risks
This study looks at the typical features and risk factors in children diagnosed with inflammatory bowel disease (IBD). It may help families understand what affects IBD in kids, even if it is not testing a new treatment.
AsyutAges Up to 18 years - NCT05003895RecruitingPhase 1
CAR-T for solid tumors with high GPC3 protein
This early-phase trial tests a personalized CAR-T cell treatment for cancers that make a lot of a protein called GPC3. If you have advanced cancer that has already tried at least one standard treatment, and your tumor has enough GPC3, this study aims to see how well the treatment can shrink tumors and how safe it is.
Bethesda, MarylandAges 18–120 - NCT05003947RecruitingPhase 1
Stem cell infusion for Crohn’s or ulcerative colitis safety
This Phase 1 trial tests whether an IV infusion of donated (allogeneic) stem cells is safe in people with Crohn’s disease or ulcerative colitis. It focuses mainly on safety and tolerability, and it may offer a new treatment approach if you qualify.
St John'sAges Any age - NCT05005403RecruitingPhase 1
Testing azirkitug for lung, head/neck, and other solid cancers
This Phase 1 study tests how a new medicine (azirkitug) behaves in the body and how safe it is, given by IV infusion alone or with other cancer drugs. It may help people with several advanced solid tumor cancers, especially after standard treatments have stopped working.
Duarte, CaliforniaAges 18 years+ - NCT05006430RecruitingPhase 1/Phase 2
Fecal transplant study for severe alcoholic hepatitis safety
This trial tests whether fecal microbiota transplantation (a controlled transfer of stool bacteria) is safe in people with severe alcoholic hepatitis. It aims to see if the treatment is tolerable and what risks may come with it, in addition to watching how liver illness changes.
Houston, TexasAges 18–75 - NCT05007132RecruitingPhase 2
First-line metastatic colon or rectal cancer study with targeted drugs
This Phase 2 trial compares two treatment combinations as a first treatment for metastatic (spread) colon or rectal cancer. It looks to see whether one combo works better or is safer than the other.
BerlinAges 18 years+ - NCT05008809RecruitingPhase 3
FIRE-9 trial: chemo after colon cancer metastasis removal
This trial studies whether giving chemotherapy after surgery or ablation (destroying spots of cancer) can improve outcomes in people with metastatic colon or rectal cancer. It compares post-treatment chemotherapy strategies to reduce the chance the cancer comes back.
AmbergAges 18 years+ - NCT05009927RecruitingPhase 2
Check whether continuing imatinib works after long GIST control
This trial studies people with advanced or metastatic gastrointestinal stromal tumor (GIST) who have been on the drug imatinib for 10 years with stable, non-growing disease. The goal is to see how effective it is to keep imatinib going after this long period.
BesançonAges 18 years+ - NCT05010863Recruiting
Test and develop a stomach cancer detection kit
This study looks for marker signals from stomach cancer tissue to improve a detection kit. You may be asked to provide tissue samples, especially if you have a new stomach cancer diagnosis and have not had anti-cancer treatment yet.
Wenzhou, ZhejiangAges Any age - NCT05013216RecruitingPhase 1
Vaccine trial for people at high risk of pancreatic cancer
This early-phase trial studies a long-peptide vaccine designed for people with certain genetic changes that raise the risk of pancreatic cancer. The goal is to help your immune system recognize and respond to cancer-related changes before cancer develops.
Baltimore, MarylandAges 40 years+ - NCT05013944Recruiting
Join a patient registry to support future research
This trial is a “patient registry,” which collects health information over time to help researchers plan and run future studies. It may help by contributing your experience so new treatments can be tested more effectively.
Arlington Heights, IllinoisAges 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.