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
- NCT05952947RecruitingPhase 1
Study drug for HPV18-positive solid tumors with a specific immune marker
This Phase 1 trial tests HRYZ-T101 injection for people whose solid cancer is HPV18-positive and who have the HLA-DRB1*0901 immune marker. It is meant for people whose cancer has returned or spread and who have few or no effective treatment options.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT05952661Recruiting
Testing immune treatment after esophageal cancer therapy
This trial looks at how best to add an immunotherapy “extra” before, during, and after standard chemoradiation for stage II–III esophageal squamous cell cancer that can’t be operated on. It may help reduce cancer that remains after treatment by targeting immune cells.
Shijiazhuang, HebeiAges 18–75 - NCT05953402Recruiting
Testing ozanimod use in pregnant people with ulcerative colitis
This trial studies how ozanimod affects pregnant people with ulcerative colitis and their babies. It may help doctors understand safety and outcomes when this medicine is used during pregnancy and after birth.
Wilmington, North CarolinaAges Any age - NCT05953961Recruiting
90Y radiation compared with microwave ablation for small liver cancer
This trial compares two procedures to treat a small, single liver tumor that cannot be surgically removed. It aims to see which treatment works better for people with low blood protein (albumin), which can affect healing and outcomes.
New Orleans, LouisianaAges 18 years+ - NCT05954078RecruitingPhase 3
ctDNA-guided chemotherapy after colon cancer surgery
This trial checks whether a special blood test (ctDNA methylation) can help decide the best chemotherapy after surgery for people at higher risk of colon cancer coming back. It may help spare some patients unnecessary treatment while aiming to improve outcomes for those likely to relapse.
Shanghai, Shanghai MunicipalityAges 18–80 - NCT05954897RecruitingPhase 2
Lenvatinib plus tislelizumab with HAIC for advanced liver cancer
This Phase 2 study tests whether combining three treatments—lenvatinib, tislelizumab, and a liver-directed chemotherapy approach (HAIC)—can shrink advanced hepatocellular carcinoma. It may help people whose cancer is stage C and hasn’t been treated before.
Guangzhou, GuangdongAges 18 years+ - NCT05954429RecruitingPhase 2
Study of fruquintinib plus immunotherapy after standard CRC treatment
This trial studies fruquintinib combined with serplulimab (an immune therapy) for advanced colorectal cancer that has spread and is no longer responding to standard treatments. It may help by slowing the cancer’s growth and improving outcomes after the usual options have been tried.
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT05954702Recruiting
Tested added TRAM flap after esophagus surgery
This study looks at a surgical reconstructive technique (a “TRAM flap” made from tissue from the abdomen) during surgery for people with esophageal cancer who already had their esophagus removed. It aims to see whether this approach works better or more safely for rebuilding the food passage area.
São Paulo, São PauloAges 18 years+ - NCT05955196Recruiting
Immune therapy trial for colon cancer using CD47 blockers
This trial studies an immune-based treatment that targets CD47 to help your immune system fight colon cancer. It may help by changing the “immune environment” around the tumor so it can be more effective, and it is aimed at people with colon cancer that is advanced, recurring, or needing surgery.
MarseilleAges 18 years+ - NCT05957016RecruitingPhase 2
New treatment before and during rectal radiation with chemo
This Phase 2 study tests a treatment plan given before surgery (neoadjuvant) along with radiation and chemotherapy (concurrent chemoradiotherapy) for locally advanced rectal cancer. It may help shrink the cancer before the next steps of care and improve control of the disease.
Chongqing, Chongqing MunicipalityAges 18–75 - NCT05956847Recruiting
Studying DNA fragments in stomach cancer tissue
This trial looks at tiny pieces of DNA found outside cells in stomach tissue to better understand how gastric (stomach) cancer starts and progresses. It may help future patients by improving how doctors study stomach cancer from biopsy and surgical samples.
Xi'an, ShaanxiAges 18–80 - NCT05957250Recruiting
PET scan study to better image pancreatic and bile duct cancer
This study uses a special PET scan drug (Ga-FAPI-46) to create clearer pictures of pancreatic and bile duct cancers. It may help doctors decide on the best next steps—especially before surgery—by checking tumor size and looking for spread.
Amsterdam, North HollandAges 18 years+ - NCT05959577Recruiting
Compare hemorrhoid surgeries: standard removal vs stapling
This study compares two surgical treatments for severe hemorrhoids: traditional excision versus a stapling procedure. It may help you and your care team choose the approach that works best for symptoms in grade III–IV hemorrhoids.
TaipeiAges 25–75 - NCT05959356RecruitingPhase 2
First-line treatment for left-sided metastatic colon cancer with specific tumor markers
This Phase 2 trial tests a combination of medicines (cetuximab, envafolimab, and chemotherapy) as the first treatment for certain left-sided metastatic colorectal cancers. It may help by slowing or shrinking the cancer in people whose tumor has no RAS/BRAF mutations and is microsatellite-stable (MSS).
Foshan, GuangdongAges 18 years+ - NCT05959616RecruitingPhase 1
Study of controlled Shigella infection in Kenyan adults
This Phase 1 study gives a carefully measured dose of Shigella sonnei to healthy adults to learn about the infection’s safety and how the body responds. It may help researchers build safer future tests or treatments, but it requires a hospital stay and many follow-up visits.
KilifiAges 18–45 - NCT05961059RecruitingPhase 1
Shigella vaccine safety study for healthy adults
This Phase 1 study tests a Shigella (gut infection) vaccine and additives to see how safe they are in healthy adults. If you qualify, you may help researchers understand whether the vaccine triggers any unwanted immune or stomach side effects.
LeidenAges 18–50 - NCT05961111RecruitingEarly Phase 1
Oncolytic virus injection for advanced solid tumors
This early-phase trial tests an injection of a virus designed to attack cancer cells in people with advanced solid tumors. It is meant for situations where standard treatments have not worked (or you can’t/won’t take them) and when doctors can directly deliver the treatment to a tumor spot.
Linyi, ShandongAges 18–75 - NCT05961969Recruiting
Robotic rectal surgery for early-to-mid rectal cancer
This trial tests a robotic, top-down approach to remove certain rectal tumors using an intersphincteric resection (a surgery that preserves bowel control as much as possible). It may help some people with stage I–III rectal cancer avoid a bigger operation and improve outcomes compared with standard surgical methods.
TaipeiAges 20–75 - NCT05961982Recruiting
EUS-guided heat treatment for pancreatic cysts
This study tests whether an endoscopy-based “radiofrequency ablation” (controlled heating) can manage certain pancreatic cysts that look high-risk. It’s designed for people who are not good candidates for surgery, aiming to shrink or control the cyst safely.
Columbus, OhioAges 18 years+ - NCT05962190Recruiting
Short-term extra fat intake to study liver metabolism
This study tests what happens to the liver and fat metabolism when you eat extra fat for a short time. It may help researchers understand how diet affects liver function and metabolism in otherwise stable adults.
OxfordAges 18–65 - NCT05962502RecruitingPhase 2
Cetuximab plus irinotecan for left-sided RAS/BRAF wild-type colon cancer
This Phase 2 trial tests whether adding cetuximab to irinotecan can control metastatic colorectal cancer that has returned or worsened after standard treatments. It targets people whose tumor is left-sided and shows “wild-type” RAS and BRAF genes on blood testing after prior therapy.
Guangzhou, GuangdongAges 18 years+ - NCT05963191Recruiting
Test camera bowel scan for early Lynch syndrome lesions
This study tests a special CAD-EYE system to help detect abnormal (potentially cancer-related) growths during colonoscopy in people with Lynch syndrome. It may improve how reliably clinicians find lesions early, when treatment can be easier.
ParisAges 18–90 - NCT05964530Recruiting
Testing local removal versus radical surgery for rectal cancer
This trial looks at whether removing the rectal tumor locally (through the anus) can work as well as a more extensive operation after scans show no remaining cancer. It may help some people avoid bigger surgery if the cancer truly appears gone after treatment.
TaipeiAges 18–75 - NCT05965479RecruitingPhase 2
Blood test to guide extra stomach or esophagus cancer treatment
This trial checks whether a blood test after surgery (ctDNA) can help decide if you should receive additional “adjuvant” treatment for stomach, gastroesophageal junction, or lower esophagus cancer that has HER2-positive tumors. It may help reduce the chance of cancer coming back by tailoring therapy to your risk based on the ctDNA result.
Guildford, SurreyAges 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.