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
- NCT04811703RecruitingPhase 1
Testing aerosol chemotherapy through the belly for advanced ovarian cancer
This Phase 1 study tests a new way to deliver chemotherapy inside the abdomen (belly) using a pressurized aerosol during a procedure, along with standard blood (IV) chemotherapy. It may help people with advanced ovarian cancer whose tumors have not progressed but are not removable with surgery yet.
LilleAges 18–75 - NCT04813055Recruiting
Registry study for ultrasound during therapeutic endoscopy
This study keeps a careful record (registry) of patients who need ultrasound-guided therapeutic endoscopy. It aims to learn how well and safely this ultrasound technique works during real-life procedures.
MilanAges 18 years+ - NCT04812912Recruiting
Study sexual and reproductive effects in early colon cancer
This study looks at how early-onset colorectal cancer treatment affects reproductive and sexual health over time. It asks eligible people to complete questionnaires so researchers can understand and possibly improve care during and after treatment.
Basking Ridge, New JerseyAges 18–50 - NCT04815525Recruiting
Long-term bowel cancer risk after colonoscopy in Hong Kong
This study follows people in Hong Kong over time to learn how the future risk of advanced colon growth changes after they have a colonoscopy. It may help doctors better predict who needs closer follow-up in the years after a colonoscopy.
Shatin, New TerritoriesAges Any age - NCT04823403RecruitingPhase 1
Targeted liver delivery of immunotherapy for advanced liver cancer
This early-phase study tests how well giving ipilimumab directly into the liver (via an artery) and nivolumab through a vein works for advanced hepatocellular carcinoma (liver cancer). It is for people whose cancer cannot be removed with surgery or treated with a transplant, especially after standard treatment failed or wasn’t tolerated.
VillejuifAges 18 years+ - NCT04821843RecruitingPhase 3
Study before-surgery treatments for esophageal cancer
This Phase 3 trial compares different “treatments before surgery” for people with esophageal (or esophagus-to-stomach) cancer. It aims to see which approach works better to control the cancer and improve outcomes after surgery.
BeijingAges 18 years+ - NCT04821778RecruitingPhase 3
Testing chemoradiotherapy for esophageal and stomach junction cancer
This Phase 3 study tests a cancer treatment plan that combines chemotherapy and radiation for people with esophageal or esophagus-stomach junction cancer. It aims to see whether this approach works better than standard care for cancers at stages I to IVA.
Anyang, HenanAges 18 years+ - NCT04838327Recruiting
Study for rare gut cancer types with targeted treatment
This study looks at rare types of gastrointestinal (GI) cancer and may match you to a targeted treatment. It also collects blood and other samples to better understand your cancer and help researchers learn what works.
Aarhus NAges 18 years+ - NCT04840056Recruiting
Testing ways to predict stomach cancer risk
This trial looks at adults with stomach lining changes—either atrophic gastritis or intestinal metaplasia—and studies how to predict who may be at risk for stomach cancer. It may help earlier identification and closer monitoring for people with these conditions.
Shatin, New TerritoriesAges 18 years+ - NCT04842006Recruiting
Personalized treatment plan for rectal cancer before and after surgery
This trial looks at a personalized treatment approach for rectal cancer. It aims to guide the best chemotherapy and (if needed) radiotherapy before and after surgery, based on scans and specific test results.
Helsinki, UusimaaAges 18–100 - NCT04842916Recruiting
Study blood, tumor tissue, and preferences to predict stomach cancer response
This study looks at stomach (or stomach–esophagus junction) cancer tissue, treatment details, and patient-reported experiences to better predict how you may respond to standard chemotherapy. It may help personalize future treatment by identifying markers that connect your tumor environment and your expected outcomes.
BrestAges 18–85 - NCT04842812RecruitingPhase 1
Personalized immune cell therapy for advanced solid tumors
This Phase 1 study tests engineered immune cells (TILs/CAR-TILs) made from your tumor to treat advanced solid cancers that have not responded to standard treatments. It may help your immune system better recognize and attack the cancer, but it is mainly focused on safety and early results.
GuangzhouAges 18–85 - NCT04843215Recruiting
Surgery comparison for advanced stomach cancer after initial surgery
This trial studies whether removing all of the fatty lining (omentum) or only part of it during surgery leads to better outcomes in people with advanced stomach cancer. It also checks that participants can safely have the same stomach-cancer chemotherapy plan after surgery.
Tianjin, Tianjin MunicipalityAges 18–70 - NCT04843176Recruiting
AI vs liver cancer scores to read CT scans
This study compares an artificial intelligence tool against a standard liver scan scoring system (LI-RADS) to diagnose liver cancer (HCC) on CT scans. It may help make liver cancer detection more accurate for people at higher risk.
Hong KongAges 18 years+ - NCT04843852RecruitingPhase 1
Test vaccine added to hepatitis B treatment
This early-phase study tests whether a hepatitis B vaccine (with an added ingredient to boost the immune response) can safely help people with long-term hepatitis B who are already on antiviral therapy. It is mainly looking at safety and how the immune system responds.
Baltimore, MarylandAges 18 years+ - NCT04844606RecruitingPhase 3
Mirikizumab for kids with ulcerative colitis or Crohn’s
This study checks whether continuing mirikizumab (a medicine that calms gut inflammation) helps children with ulcerative colitis or Crohn’s disease after prior study treatment. It aims to see if staying on the medicine is beneficial and safe over time.
San Francisco, CaliforniaAges 2–19 - NCT04846309RecruitingPhase 1
MRI scan to personalize radiation for esophageal cancer
This Phase 1 study uses specialized imaging (including MRI) to better “see” low-oxygen areas in esophageal cancer and help guide individualized radiation treatment. It aims to improve how radiation is planned and delivered while checking safety.
Salt Lake City, UtahAges 18 years+ - NCT04846959Recruiting
Pregnancy outcomes study for people exposed to risankizumab
This study looks at pregnancy outcomes in people who took risankizumab during pregnancy (or shortly before getting pregnant). It compares them with pregnancies exposed to similar biologic medicines, to better understand risks and what to expect.
Morrisville, North CarolinaAges Any age - NCT04847063RecruitingPhase 1
Test drug heating inside the abdomen for peritoneal cancer
This Phase 1 trial tests a treatment that delivers heated chemotherapy directly into the abdomen (HIPEC) for certain cancers that have spread only within the abdominal lining. It aims to see how safely and effectively this approach works, especially when doctors can remove as much tumor as possible.
Bethesda, MarylandAges 18–120 - NCT04851119RecruitingPhase 1/Phase 2
Tegavivint for kids and young adults with hard-to-treat solid tumors
This early-phase study tests tegavivint to see how well it works and how safe it is for children and young adults with solid cancers that have come back or are not responding. It may be an option if your tumor type (including certain lymphomas or desmoid tumors) matches the study’s rules.
Birmingham, AlabamaAges 1–30 - NCT04850729Recruiting
Study links surgery medicines to the stomach tumor environment
This trial looks at how medicines given around the time of stomach cancer surgery may change the “tumor microenvironment,” which is the biology around the tumor. It may help doctors better understand which perioperative treatments work best for locally advanced, operable stomach cancer.
Guangzhou, GuangdongAges 18–75 - NCT04855838Recruiting
Study of swallowing problems after neck spine surgery
This study looks at how swallowing recovers after surgery on the front of the neck spine after a trauma. Some people may also be followed more closely if a swallowing test shows a problem a few weeks after surgery.
UmeåAges 18 years+ - NCT04857528Recruiting
Testing HPV DNA in anal and cervical tumors
This trial checks whether tumor samples contain HPV DNA (genetic material from the HPV virus). The goal is to improve detection in anal and cervical cancers, especially in patients planning standard radiation treatment.
Chicago, IllinoisAges 18 years+ - NCT04858009RecruitingPhase 2
Warm chemotherapy placed in the belly for pancreatic cancer spread
This Phase 2 study tests a treatment that warms chemotherapy and delivers it directly into the abdomen to treat pancreatic cancer that has spread to the lining of the belly (peritoneum). You may be eligible if you completed earlier chemotherapy and your body shows signs the cancer is responding, with limited spread in the abdomen.
Rochester, MinnesotaAges 18–80
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.