Clinical trials
Gastrointestinal clinical trials
Below are recruiting gastrointestinal clinical trials, each written for real people, not researchers. We’re tracking 469 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06907095Recruiting
Early cancer detection study for high-risk individuals
This study tests if a simple blood or fluid test can find cancer early in people with a higher-than-average risk. If you have certain genetic mutations, a strong family history of cancer, or other high-risk conditions, you may be able to join.
VillejuifAges 18 years+ - NCT05989763Recruiting
Constipation study for people with systemic sclerosis
This study looks at why people with systemic sclerosis (a disease that can affect connective tissues) develop constipation. It will use special tests to measure how well the colon moves waste, and it may help doctors find better treatments.
Houston, TexasAges 18 years+ - NCT06870331Recruiting
Probiotics for stomach health after spinal cord injury
This study tests if taking probiotics and prebiotics can help with digestion, gas, constipation, and other stomach issues in people with long-term spinal cord injury.
Nottwil, Canton of LucerneAges 18 years+ - NCT06877923Recruiting
Elemental 028 extra nutritional support study
This study is testing a special liquid food called Elemental 028 Extra for people who need at least 30% of their nutrition from an elemental formula. It aims to see how well it works and how people tolerate it.
TrowbridgeAges 3 years+ - NCT06863207Recruiting
Testing a new treatment for teens with stomach and nerve problems
This study tests whether a personalized nerve stimulation treatment can help teens with cyclic vomiting syndrome or functional dyspepsia who also have symptoms of autonomic dysfunction, like dizziness, fatigue, or heart palpitations when standing.
Milwaukee, WisconsinAges 11–18 - NCT05652088Recruiting
Study gut immune tissue in HIV cure efforts
This study looks at how immune tissue in the gut may be involved in curing HIV. You may be asked to have two colonoscopies while on an HIV “cure-related” treatment, so researchers can collect tissue samples to understand what’s happening in your body.
New York, New YorkAges 18–75 - NCT06857344Recruiting
Smart anesthesia system for painless endoscopy
This trial tests a computer system that controls anesthesia during routine painless gastrointestinal endoscopy. The system learns from past procedures to keep you safely asleep while the doctor examines your digestive tract.
Anxi, FujianAges 18–65 - NCT06848400Recruiting
Capsule endoscopy for stomach screening at home
This trial tests if a capsule-sized camera can be used at home to check for stomach problems. It's for healthy people or those with stomach symptoms like pain, nausea, or bleeding.
Guangzhou, GuangdongAges 18 years+ - NCT06839053RecruitingPhase 2
Study of sonrotoclax, rituximab, and zanubrutinib for CLL, SLL, and MCL
This trial tests a combination of three drugs (sonrotoclax, rituximab, and zanubrutinib) for people with chronic lymphocytic leukemia, small lymphocytic lymphoma, or mantle cell lymphoma. The goal is to see if the combination works better than current treatments.
Seattle, WashingtonAges 18 years+ - NCT06846359Recruiting
Hypnotherapy for Upper Gut Symptoms
This study tests whether hypnotherapy sessions, delivered through a smartphone app, can help relieve upper digestive symptoms like nausea, bloating, and indigestion. It's for people whose symptoms are not caused by a known disease and who have already had normal stomach-emptying tests.
Rochester, MinnesotaAges 18 years+ - NCT05439135Recruiting
Fecal microbiome transplant to treat malnutrition after GI surgery
This trial tests whether “washed microbiota transplant” (a treatment using processed gut bacteria) can improve malnutrition in adults who developed it after certain upper gut surgeries. It may help by restoring helpful gut bacteria, but you must meet several medical and safety checks.
Nanjing, JiangsuAges 18 years+ - NCT06834126RecruitingPhase 1
Papaverine with radiation for advanced rectal cancer
This trial tests if adding papaverine (a drug) to radiation therapy can help people with locally advanced rectal cancer avoid surgery and keep their rectum. It is for patients who have already had chemotherapy and want a non-surgical approach.
Duarte, CaliforniaAges 18 years+ - NCT06805825RecruitingPhase 1
Study of NN3201 for advanced cancers with c-Kit
This trial tests a new drug, NN3201, that targets a protein called c-Kit found on some cancer cells. It may be an option for people with certain advanced solid tumors, including GIST, small cell lung cancer, or other c-Kit-positive cancers, who have already tried standard treatments or cannot take them.
Ann Arbor, MichiganAges 18 years+ - NCT06810232Enrolling by invitation
Health factors and longer hospital stay after endoscopy
This study looks at how general health factors (like age and other medical conditions) might affect how long you need to stay in the hospital after a routine stomach or bowel exam called an endoscopy. The goal is to understand which patients may need extra care so hospitals can plan better.
IstanbulAges 18 years+ - NCT06796764Recruiting
Breathing tube safety during endoscopy in people with obesity
This trial tests a special breathing tube to see if it can prevent low oxygen levels during sedated endoscopy in people with obesity. If you are scheduled for both an upper endoscopy and colonoscopy, this study may help make the procedure safer.
Hangzhou, ZhejiangAges 18–70 - NCT06802276Recruiting
Smart underwear measures gas from diet
This study tests special underwear that can measure gas produced by digestion after eating different foods. Researchers want to see if the underwear can track how diet affects gas production.
Aurora, ColoradoAges 18 years+ - NCT06771102Recruiting
New single-use gastroscope compared to standard for bedside use
This trial tests a single-use gastroscope used at the bedside versus the standard reusable gastroscope used in the endoscopy unit. It aims to see if the bedside scope works as well for patients who are already in the hospital and need an upper endoscopy without general anesthesia.
KøgeAges 18 years+ - NCT06748690Recruiting
Comparing biopsy methods for stomach tumors
This trial compares two ways to take a tissue sample from stomach tumors before surgery to see which works better. The results may help doctors choose the best method for patients.
Beijing, Beijing MunicipalityAges 18 years+ - NCT05292989Recruiting
Using a frailty checklist to help older people choose care
This study looks at how a personalized “frailty” checklist can help older adults (65+) understand their health and make better choices. You may be asked to complete questionnaires and a frailty-type assessment to see if the approach works for you.
Woolloongabba, QueenslandAges 65–100 - NCT06731998Recruiting
Improving pain control after cancer surgery
This study compares different methods of managing pain after minimally invasive surgery for abdominal cancers. It aims to find which approach works best to reduce pain and improve recovery.
Pittsburgh, PennsylvaniaAges 18–89 - NCT06716658RecruitingPhase 2
New targeted drug for certain T/NK-cell lymphomas
This trial tests an oral JAK1 inhibitor called golidocitnib for people with T/NK-cell lymphoma that came back after treatment or didn't respond. The drug works by blocking a signal that helps cancer cells grow.
Tianjin, Tianjin MunicipalityAges 18 years+ - NCT06715293Recruiting
Wireless sensor capsule for detecting upper GI bleeding
This trial tests a wireless optical sensor capsule that you swallow to find the source of bleeding in your upper stomach or food pipe. It may help doctors diagnose upper gastrointestinal bleeding without a standard endoscopy tube.
Shatin, Hong Kong IslandAges 18 years+ - NCT06698211Enrolling by invitation
Posaconazole to prevent fungal infection in stem cell transplant patients with gut GVHD
This trial tests if giving the antifungal drug posaconazole as a tablet can prevent serious fungal infections in people who have had a stem cell transplant and develop gut graft-versus-host disease (GVHD), which is a complication where donor cells attack the digestive tract. It may help protect patients who need strong immune-suppressing treatment for GVHD.
TianjinAges 18–75 - NCT06699745Enrolling by invitation
Music vs. white noise for kids during endoscopy
This study compares playing music or white noise during a child's first endoscopy to see which helps them feel more comfortable. It might help your child relax during the procedure.
Istanbul, AvcilarAges 6–12
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Common questions
- Are there clinical trials for gastrointestinal?
- Yes. Clin2 currently lists 469 recruiting gastrointestinal studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a gastrointestinal trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a gastrointestinal trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.