Gastroenterology
Digestive system clinical trials
Conditions of the stomach, intestines, liver, and the rest of the digestive tract. We’re tracking 7,879 recruiting studies in this area right now.
By phase
- Not applicable4,911
- Phase 21,185
- Phase 1581
- Phase 3465
- Phase 1/Phase 2391
- Phase 4235
- Phase 2/Phase 3111
Top conditions
- Colorectal Cancer491
- Gastric Cancer296
- Pancreatic Cancer289
- 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
- Florida134
- Massachusetts128
- New York123
- Alabama122
- Maryland85
- Ohio79
- Pennsylvania72
Recruiting studies7,879 total
- NCT04501406RecruitingPhase 2
Low-dose pioglitazone for fatty liver disease in people with type 2 diabetes
This Phase 2 study tests whether low-dose pioglitazone can improve NASH, a type of fatty liver disease, in adults who also have type 2 diabetes. You may be able to join if your diabetes medicines and lab tests meet specific safety and stability requirements.
Gainesville, FloridaAges 21–75 - NCT04502719Recruiting
Testing nutrition screening in people with liver cirrhosis
This study compares different ways of checking nutrition problems in people with liver cirrhosis. It may help doctors choose the best screening tool to spot risk earlier and guide care.
Barcelona, CataloniaAges 18–100 - NCT04503265RecruitingPhase 1/Phase 2
AMXI-5001 study for advanced cancers that won’t respond
This Phase 1/2 trial tests AMXI-5001 in people with advanced cancers that have progressed or stopped responding to standard treatments. It’s mainly designed to find the safest dose and see early signs the treatment might work.
Los Angeles, CaliforniaAges 18 years+ - NCT04503785Recruiting
Tests for swallowing problems using throat pressure and impedance
This study records measurements of how your esophagus (food tube) moves and how the swallowing pathway behaves. It also uses symptom scoring to see how the test results match your swallowing symptoms, which could help improve care for people with swallowing trouble.
Indianapolis, IndianaAges 18–99 - NCT04504136Recruiting
Study how gut lining heals in inflammatory bowel disease
This study looks at how the lining of the colon heals in people with inflammatory bowel disease (ulcerative colitis or Crohn’s disease). It may help researchers understand whether anti-TNF treatment improves healing, especially when people have limited prior response or are starting biologic therapy.
Lexington, KentuckyAges 18–90 - NCT04504227Recruiting
Testing thickened feeds to improve safe swallowing
This study looks at how using thickened feeds may change swallowing safety and function in children who have swallowing problems (dysphagia) or who are at risk for a type of concerning breathing event. The goal is to see whether thicker liquids help protect the airway and improve swallow patterns.
Boston, MassachusettsAges Up to 21 years - NCT04506593Recruiting
GI Motility diagnosis registry for people with digestion movement problems
This trial is a registry, meaning it collects information about people being evaluated for problems with how the gut moves. It may help doctors better diagnose gastrointestinal motility disorders in the future.
Indianapolis, IndianaAges Any age - NCT04508088Recruiting
Study of bones and bone marrow in new Crohn’s
This study looks at how Crohn’s disease affects bones and bone marrow soon after diagnosis. It may help researchers understand disease effects and improve future care, either by comparing you to healthy controls or by tracking changes over time.
Boston, MassachusettsAges 13–20 - NCT04510129Recruiting
Cancer biospecimen collection study for immunotherapy patients
This study collects samples (like tissue biopsies and imaging information) from people with certain cancers who are starting anti–PD-1/PD-L1 immunotherapy. It helps researchers gather material to study how these treatments work.
San Francisco, CaliforniaAges 18 years+ - NCT04511039RecruitingPhase 1
New targeted pill combo for advanced colon or stomach cancers
This Phase 1 trial tests a combination of oral (swallowed) drugs—trifluridine/tipiracil plus talazoparib—in people with advanced (locally advanced or metastatic) colorectal or gastroesophageal adenocarcinoma. It’s designed to see how well the treatment can control cancer and to better understand side effects and dosing.
Buffalo, New YorkAges 18 years+ - NCT04512716RecruitingEarly Phase 1
Radioimmunotherapy then CD19 CAR T for hard-to-treat blood cancers
This early-phase study tests a two-step treatment: first a targeted radioactive antibody (131-I apamistamab) and then CD19 CAR T-cell therapy. It is for adults with relapsed or refractory B-cell acute lymphoblastic leukemia (B-ALL) or diffuse large B-cell lymphoma (DLBCL) that is not responding or has come back, aiming to shrink cancer using engineered immune cells.
Basking Ridge, New JerseyAges 18 years+ - NCT04512833Recruiting
CyberKnife radiation for small liver cancer with cirrhosis
This trial tests CyberKnife stereotactic body radiation therapy—targeted high-precision radiation—for small hepatocellular carcinoma (liver cancer) in people with decompensated cirrhosis. It may help if other liver cancer treatments aren’t possible, but it has strict safety rules about tumor spread and nearby organs.
BeijingAges 30–80 - NCT04514965Recruiting
Bezafibrate for primary biliary cholangitis patients
This trial studies whether bezafibrate, a medication, can help people with primary biliary cholangitis (PBC). You may be considered if your care team is already considering bezafibrate and you meet safety requirements.
Aarhus N, Central JutlandAges 18–99 - NCT04513808RecruitingPhase 3
Compare IV versus inhaled anesthesia for esophageal surgery
This trial tests whether using IV anesthesia (given through a vein) or inhaled anesthesia helps people live longer without their esophageal cancer coming back after surgery. You’d be randomly assigned to one anesthesia type as part of potentially curative surgery.
ShanghaiAges 18–90 - NCT04515251Recruiting
Ultrasound measurements of a key belly artery in healthy kids
This study uses an abdominal ultrasound to measure a blood vessel called the superior mesenteric artery in generally healthy children. It helps researchers understand normal ultrasound measurements, which can improve how doctors interpret scans in the future.
BellinzonaAges 10–15 - NCT04519151RecruitingPhase 2
Pembrolizumab plus lenvatinib for ovarian cancer that returned
This Phase 2 trial tests whether pembrolizumab plus lenvatinib can shrink ovarian cancer that has come back after platinum chemotherapy. You may be eligible if your cancer returned after a certain “time off” from prior treatment and you meet key health and safety requirements.
Ramat GanAges 18 years+ - NCT04516681RecruitingPhase 3
Ascorbic acid plus immunotherapy for spread colorectal cancer
This trial tests whether intravenous vitamin C (ascorbic acid) combined with an immune treatment (adebrelimab) can slow or shrink metastatic colorectal cancer that can’t be removed with surgery. It focuses on tumors that strongly show a specific marker called GLUT3, and aims to see if the combination works better than standard approaches.
Shanhai, Shanghai MunicipalityAges 18–75 - NCT04519905Recruiting
Testing two ways of radiation in older esophagus cancer patients
This study compares a planned radiation approach given at the same time as other treatment for older adults with esophageal squamous cell carcinoma. It may help find a safer and more effective radiation schedule for people who are fit enough for treatment.
Nanjing, JiangsuAges 76 years+ - NCT04520932Recruiting
Radiofrequency treatment for small nonfunctioning pancreatic tumors
This trial tests whether heating (radiofrequency) treatment guided by a special ultrasound scope can control small pancreatic neuroendocrine tumors. It may help patients whose tumors are very small and do not release hormones.
MarseilleAges 18–80 - NCT04522193Recruiting
Testing causes of dumping symptoms after esophagus repair
This study looks at how sugars move and how “dumping” symptoms happen in babies after surgery for an esophagus problem. It may help doctors understand what causes these symptoms and how to monitor them safely.
LilleAges 2 months–3 months - NCT04522687Recruiting
Blood lymphocyte changes studied during radiation and chemotherapy for lung cancers
This study looks at how a type of white blood cell in your blood changes while you receive radiation and chemotherapy. The goal is to see whether these blood changes relate to treatment, especially in certain chest (thoracic) cancers.
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT04525833Recruiting
Visit Tzu Chi gastroenterology clinic study
This study looks at people who have visited a Tzu Chi Hospital gastroenterology clinic. It may help researchers understand liver and other whole-body health conditions in patients who receive care there.
New Taipei CityAges 18–99 - NCT04525989Recruiting
Short-course proton vs photon radiation before rectal surgery
This study compares two types of pre-surgery radiation—protons versus standard photons—in people with high-risk rectal cancer. The goal is to shrink and control the tumor while safely getting you ready for surgery, and to see which approach works better.
Stockholm, SolnaAges 18 years+ - NCT04527861Recruiting
Minimally invasive single-incision surgery for colon cancer
This trial compares a single-incision laparoscopic operation versus the usual laparoscopic operation for colorectal (colon or “high rectum”) cancer. It looks at cancer outcomes and may help determine which approach is safer and works better for the right patients.
Lanzhou, GansuAges 18–85
Common questions
- How many digestive system clinical trials are recruiting?
- Clin2 is tracking 7,879 recruiting gastroenterology studies from the U.S. registry right now, out of 12,372 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.