Clinical trials
Colonoscopy clinical trials
Below are recruiting colonoscopy clinical trials, each written for real people, not researchers. We’re tracking 122 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06721195Recruiting
Study of Euphoria from Remimazolam During GI Scopes
This trial studies a sedative called remimazolam and how it makes people feel during routine upper and lower GI scope procedures. It may help doctors understand which patients are more likely to feel a sense of euphoria (a feeling of intense happiness) from the medicine.
Shanghai, Shanghai MunicipalityAges 18–65 - NCT07736963Recruiting
Stopping GLP-1 drugs before colonoscopy: a trial in Taiwan
This study looks at whether stopping GLP-1 receptor agonists (a type of diabetes or weight-loss medication) before a colonoscopy can help improve the procedure. It compares how well the bowel is cleaned in people who stop these drugs for a certain time versus those who continue them.
New Taipei, TaiwanAges 18–90 - NCT06566872Recruiting
Collecting endoscopy videos to test a computer tool
This trial records videos of routine colonoscopy and gastroscopy procedures to help test a new computer system (ME-APDS) that may assist doctors in detecting polyps or other findings. It is for adults already scheduled for these exams.
Be’er Ya‘aqovAges 18 years+ - NCT07465705RecruitingPhase 3
Comparing two bowel prep options for colonoscopy the same day
This trial compares two different bowel cleansing preparations taken the same day as your colonoscopy: mannitol vs Plenvu. It aims to see which one works best and is safe.
AnderlechtAges 18 years+ - NCT06174233Recruiting
French Gut Study: stool samples before colonoscopy
This study looks at how gut bacteria might affect colon health. If you are between 50 and 75 and scheduled for a colonoscopy, you may be asked to provide a stool sample before the procedure to help researchers understand the link between gut bacteria and colon findings.
BobignyAges 50–75 - NCT07725328Enrolling by invitation
Mobile health program for cancer screening and healthy habits
This trial tests if a mobile app or text messages can help women in Singapore stay on top of cancer screening and adopt healthier habits. It may be a good fit if you're a woman aged 50 to 69 who lives in Singapore.
SingaporeAges 50–69 - NCT07587970Recruiting
Body Position and Oxygen Levels During Sedated Scope Procedures
This study tests whether your body position during recovery from sedated endoscopy (a camera procedure to examine your stomach and colon) affects your oxygen levels. The researchers want to find the best recovery position to keep your oxygen levels stable and safe.
Yinchuan, NingxiaAges 18 years+ - NCT07346521Recruiting
Stomach cancer screening during routine colonoscopy
This study looks for early signs of stomach cancer and Barrett's esophagus (a precancerous condition) in people who are already getting a routine colonoscopy. By adding a quick upper endoscopy during the same visit, doctors can check for H. pylori infection and abnormal tissue changes without extra hassle.
ViennaAges 30 years+ - NCT04185779Recruiting
Colorectal cancer screening colonoscopy study
This study looks at patterns of colorectal (colon and rectum) findings in people who are having a colonoscopy as part of routine care. It may help improve how doctors detect and understand colorectal cancer and related growths over time.
South Shields, Tyne and WearAges 18 years+ - 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 - NCT05347407Recruiting
Gut nerve cell biomarkers study for Parkinson’s risk
This trial studies nerve cell “biomarkers” from the gut to learn whether they can help detect Parkinson’s disease (or related conditions) earlier. You may be asked to undergo a colonoscopy to collect gut tissue for testing.
New York, New YorkAges 45–75 - NCT05355363Recruiting
Check what happens after missed colon follow-up for colon polyps
This study looks at the risk of new or advanced colon findings in people who had certain colon polyp results, but then did not get the recommended follow-up colonoscopy on time. It may help doctors fine-tune how urgently different patients need repeat colon checks.
Montreal, QuebecAges 45–80 - NCT05436054RecruitingPhase 4
Plenvu vs Picoprep bowel prep for colonoscopy
This study compares two bowel-cleansing products (Plenvu and Picoprep) to see which works better and is easier to tolerate before a colonoscopy. It may help patients by improving the chance of a clear exam and reducing unpleasant side effects.
Aalborg, North JutlandAges 18 years+ - NCT05630794RecruitingPhase 1
Test ONC201 to prevent colorectal polyp return in high-risk people
This Phase 1 study tests whether ONC201 is safe and may help prevent colorectal polyps (adenomas) from coming back. You’d also undergo planned colon/rectum camera exams to check for new or changing polyps.
Ann Arbor, MichiganAges 18 years+ - 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 - NCT05686499Recruiting
Colonoscopy training for early colorectal cancer detection
This trial supports training for healthcare professionals to improve screening and early diagnosis of colorectal cancer. It may help by building skills in safely performing colonoscopies and spotting cancer earlier.
Ile-Ife, Osun StateAges 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 - NCT05988645Recruiting
Study of a new device to improve colonoscopy
This trial tests a new tool called MiWEndo that helps doctors better see and remove polyps during a colonoscopy. It is for people who already have a polyp in the rectum that needs to be taken out.
BarcelonaAges 18 years+ - NCT06298461RecruitingPhase 4
Comparing bowel preps for Crohn's and colitis patients
This trial compares two different bowel preparation solutions (2L-PEG and oral sulfate solution) for people with Crohn's disease or ulcerative colitis who are having a colonoscopy. The goal is to find which preparation works better and is more comfortable for patients with these conditions.
Winnipeg, ManitobaAges 18 years+ - NCT06307938Recruiting
Liquid biopsy test for colorectal cancer before colonoscopy
This trial tests a simple blood test (liquid biopsy) to find cancer signals in the DNA of people being called for a colonoscopy. If you are scheduled for a colonoscopy, your blood sample could help doctors detect colorectal cancer earlier and plan better treatment.
LevangerAges 18 years+ - NCT06315179Recruiting
Spatial gene study for inflammatory bowel disease
This study looks at tissue samples from people with suspected Crohn's disease, ulcerative colitis, or indeterminate colitis. The goal is to understand these conditions better and may lead to improved treatments.
Seattle, WashingtonAges 6–21 - NCT06376565Recruiting
Improving colonoscopy follow-up for high-risk polyps
This study aims to understand why some people return for a follow-up colonoscopy after having high-risk colon polyps and to find ways to improve the process. It involves interviews and testing new approaches to ensure patients get the right follow-up care.
Los Angeles, CaliforniaAges 21 years+ - NCT06447012Recruiting
AI tool for diagnosing colon polyps
This trial uses artificial intelligence to help better identify polyps during a colonoscopy, which could improve diagnosis and treatment decisions.
LondonAges 18 years+ - NCT06452745Recruiting
Early colon cancer detection using a blood test
This study uses a simple blood test to find early signs of colorectal cancer in people who already had a positive stool test. If it works, it could help avoid unnecessary colonoscopies in the future.
Reus, TarragonaAges 50–70
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Common questions
- Are there clinical trials for colonoscopy?
- Yes. Clin2 currently lists 122 recruiting colonoscopy 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 colonoscopy 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 colonoscopy 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.