Gastroenterology
Digestive system clinical trials
Conditions of the stomach, intestines, liver, and the rest of the digestive tract. We’re tracking 7,607 recruiting studies in this area right now.
By phase
- Not applicable4,687
- Phase 21,190
- Phase 1566
- Phase 3457
- Phase 1/Phase 2368
- Phase 4229
- Phase 2/Phase 3110
Top conditions
- Colorectal Cancer480
- Pancreatic Cancer289
- Gastric Cancer283
- Hepatocellular Carcinoma256
- Esophageal Cancer189
- Rectal Cancer168
- Breast Cancer147
- Crohn Disease134
- Ulcerative Colitis129
- Colon Cancer114
- Hepatocellular Carcinoma (HCC)112
- Liver Cancer99
- Lung Cancer95
- Inflammatory Bowel Diseases94
- Ovarian Cancer90
- Pancreas Cancer90
- Esophageal Squamous Cell Carcinoma86
- Cystic Fibrosis76
Leading sponsors
- Fudan University100
- Sun Yat-sen University85
- Mayo Clinic75
- Second Affiliated Hospital, Zhejiang University, School of Medicine56
- Chinese University of Hong Kong55
- M.D. Anderson Cancer Center55
- Assistance Publique - Hôpitaux de Paris53
- Sixth Affiliated Hospital, Sun Yat-sen University51
- National Cancer Institute (NCI)50
- National Taiwan University Hospital45
Where studies are running
- California443
- Arizona189
- Texas140
- Alabama129
- Florida127
- Massachusetts120
- New York120
- Maryland88
- Ohio80
- Illinois69
Recruiting studies7,607 total
- NCT05742425RecruitingPhase 2
Immunotherapy with chemo and targeted drug for colon cancer in the belly
This Phase 2 trial tests serplulimab (immunotherapy) combined with FOLFIRI chemo plus bevacizumab for colon cancer that has spread to the lining of the abdomen (peritoneal metastases). It aims to shrink these tumors and improve outcomes when surgery can’t fully remove them.
Huzhou, ZhejiangAges 18–75 - NCT04652180Recruiting
Robot surgery versus open surgery for esophagus cancer
This trial compares robot-assisted surgery with the standard open chest operation to remove esophagus and nearby tissue. It may help you understand which approach works better and is safer for patients whose cancer can be surgically removed.
L'Hospitalet de Llobregat, BarcelonaAges 18 years+ - NCT05136326RecruitingPhase 2
Pre-surgery chemo-radiation for rectal cancer without MGMT
This trial studies whether adding two chemotherapy medicines (capecitabine and temozolomide) to standard pre-surgery chemo-radiation can work better for people with locally advanced rectal cancer that has a specific tumor marker pattern (MGMT “silenced”) and is mismatch-repair proficient (MSS). It aims to shrink the tumor before surgery and improve cancer control.
MilanAges 18 years+ - NCT03311776Recruiting
Study blood and tissue markers in pancreatic cancer
This study looks at “biomarkers” (test signals in tissue or blood) in people with pancreatic cancer. It may help researchers understand the disease better and find ways to predict or track it.
HerlevAges 19 years+ - NCT05061680Recruiting
Balloon treatment for large bile duct stones
This trial looks at a procedure that uses a large balloon to help remove big stones from the bile duct. It may help people with large common bile duct stones who are safe for this approach.
HelsinkiAges 18–95 - NCT03183115Recruiting
Prevent return of esophagus pre-cancer after endoscopy
This trial looks at a prevention treatment to stop esophagus abnormal growth (pre-cancer or very early cancer) from coming back after successful endoscopic submucosal dissection. It focuses on people whose esophagus lining shows a “speckled” pattern on a special iodine test, which may mean higher risk of recurrence.
Kaohsiung CityAges 20–90 - NCT05751733Recruiting
Apatinib versus standard drug for advanced GIST after imatinib
This trial studies whether apatinib works better than the usual second-line targeted tablet for advanced gastrointestinal stromal tumor (GIST) after imatinib (or avatinib) no longer works. It may help people whose cancer has grown despite treatment or who couldn’t tolerate it.
Changsha, HunanAges 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 - NCT04245683Recruiting
Testing non-surgical treatment for newly diagnosed rectal cancer
This study looks at whether it’s practical and safe to treat certain rectal cancers without surgery. You may be offered non-surgical (“neoadjuvant”) treatment and close follow-up to see how well it works in a rural setting.
Cooperstown, New YorkAges 18 years+ - NCT05757336RecruitingPhase 2
Study drug mix for unresectable gallbladder cancer
This Phase 2 trial tests a combination of cancer medicines (gemcitabine plus albumin-paclitaxel) along with immune therapy (sintilimab) and a blood-vessel–targeting drug (bevacizumab). It’s for people with gallbladder cancer that can’t be removed by surgery, to see if the treatment controls the cancer and improves outcomes.
ShanghaiAges 18–75 - NCT04713670RecruitingPhase 4
Tested medicines to cure new H. pylori infection
This trial compares different stomach-medicine combinations to eliminate a new (first-time) H. pylori infection. It may help find the most effective treatment approach for people who have never tried eradication therapy before.
TaipeiAges 20 years+ - NCT05536102RecruitingPhase 2
Surgery-plus chemo and immunotherapy for HER2-negative gastric cancer
This Phase 2 trial studies whether adding two medicines (XELOX and tislelizumab) and another chemotherapy drug (PLD) around the time of surgery works better and is safe for people with stage III gastric (stomach) cancer. It is designed for tumors that are HER2-negative and PD-1/L1 positive.
ShanghaiAges 18–75 - NCT03589183Recruiting
Gut microbiome study for ulcerative colitis and Crohn disease
This study looks at how changes in gut bacteria (the microbiome) relate to inflammatory bowel disease, including ulcerative colitis and Crohn disease. It may help researchers understand what might improve symptoms or disease control.
SeoulAges Any age - NCT05733000RecruitingPhase 2
CPI-613 plus hydroxychloroquine with chemo for advanced solid tumors
This trial tests a drug called CPI-613 (devimistat) combined with hydroxychloroquine along with either 5-fluorouracil or gemcitabine chemo. It’s for people with advanced cancers that have stopped responding to standard treatments, aiming to shrink tumors and slow cancer growth.
Chicago, IllinoisAges 18 years+ - NCT05763446Recruiting
Predicting heavy blood transfusion during liver transplant
This study looks for factors that can predict when a person might need a very large blood transfusion during a liver transplant. The results may help the transplant team prepare sooner and better manage transfusions during surgery.
RomeAges 18 years+ - NCT05766449Recruiting
Study of liver inflammation and scarring in hepatitis B or fatty liver
This study looks at what factors predict liver inflammation, scarring (fibrosis), and health outcomes in people with long-term hepatitis B or fatty liver disease. The goal is to better understand who is more likely to worsen over time.
NanjingAges 18 years+ - NCT05772923Recruiting
Testing rectal cancer organ-preservation after radiation
This trial compares two ways to preserve the rectum/avoid major surgery after radiation: a focused contact x-ray treatment versus waiting longer and then removing only a small area if needed. It may help some people keep more normal bowel function while still controlling the cancer.
Nijmegen, GelderlandAges 18 years+ - NCT05768503RecruitingPhase 3
Test new drugs after colorectal cancer chemotherapy
This Phase 3 trial compares a new treatment combination (chidamide plus sintilimab plus bevacizumab) versus the standard second-line chemotherapy (FOLFIRI plus bevacizumab) for advanced colorectal cancer that is microsatellite stable/low. It aims to see which treatment works better and is safer for people whose cancer grew after first-line oxaliplatin-based therapy.
Hefei, AnhuiAges 18–75 - NCT05201508Recruiting
Sutures versus special mesh for hiatal hernia repair
This study compares two ways of closing tissue during laparoscopic surgery for a severe hiatal hernia. It may help doctors learn which method gives better outcomes and fewer problems after surgery.
OuluAges 18 years+ - NCT00574327Recruiting
Barrett’s and reflux registry at the Kansas City VA
This study follows people with confirmed Barrett’s esophagus (with or without concerning cell changes) and people who have reflux symptoms, to better understand how these conditions progress. It may help by building a Barrett’s registry so doctors can learn which factors predict worsening over time.
Kansas City, MissouriAges 18 years+ - NCT01763125Recruiting
Tumor bank trial for storing your blood sample
This study sets up a “tumor bank,” which means storing and later using your blood sample for future cancer research (or inflammatory disease research). You may be able to join if you currently have exactly one diagnosis—either a cancer or an inflammation condition.
InnsbruckAges 18 years+ - NCT05771597Recruiting
Home biofeedback to improve bowel and bladder control
This study tests whether doing guided “biofeedback” exercises at home can improve problems with constipation/blocked feeling, fecal leaks, and/or urine leaks. It focuses on retraining the muscles used for toileting to help you empty more normally and have fewer accidents.
Augusta, GeorgiaAges 18 years+ - NCT05775419Recruiting
Chemo and radiation, with or without extra chemo after
This trial compares standard chemo plus radiation versus the same treatment plus extra “consolidation” chemo afterward. It’s for people with a type of esophageal cancer that can’t be removed with surgery, to see if the added treatment works better and is still safe.
Nanjing, JiangsuAges 18–70 - NCT05740995Recruiting
New pre-op treatment for esophageal cancer using immunotherapy plus chemo
This trial studies giving immunotherapy (anti–PD-1) together with chemotherapy before surgery for certain locally advanced esophageal squamous cell cancer. The goal is to improve how well the tumor responds before and after the operation.
Shanghai, Shanghai MunicipalityAges 18–75
Common questions
- How many digestive system clinical trials are recruiting?
- Clin2 is tracking 7,607 recruiting gastroenterology studies from the U.S. registry right now, out of 11,926 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.