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
- NCT04220905Recruiting
Watching outcomes after removing large colon and duodenal polyps
This observational study follows people who have large polyps in the colon or duodenum that are removed during endoscopy. It aims to understand how safe and effective this approach is, and what outcomes patients have afterward.
White River Junction, VermontAges 18 years+ - NCT06406062Recruiting
AI-assisted colonoscopy study
This trial tests an artificial intelligence (AI) system during colonoscopy to help doctors see polyps or other issues more clearly. It may help improve detection of problems in the colon.
Wuhan, HubeiAges 50 years+ - NCT05643859Recruiting
Fiber supplement study for bowel health and gut bacteria
This study tests whether adding a dietary fiber supplement can change the bacteria in your colon (gut microbiome). You may be asked to take the fiber supplement during evaluation for a non-cancer rectal condition.
Portland, OregonAges 18 years+ - NCT06251700Recruiting
AI-assisted colonoscopy and long-term polyp prevention
This study checks if using AI during colonoscopy helps prevent growths from coming back. You'd need to have been in an earlier AI-colonoscopy study and be willing to come back for a follow-up colonoscopy 3 years later.
Hong KongAges 18 years+ - NCT02594813Recruiting
Bleeding risk check for endoscopy in people on blood thinners
This trial looks at how often bleeding happens after an upper scope (EGD) or colonoscopy in people who keep taking blood-thinning medicines during the procedure. The results may help doctors choose safer prep plans to lower bleeding risk.
KomaganeAges 20–90 - NCT07623902Recruiting
Testing a Tongue Scan to Detect Colorectal Polyps
This study tests whether a new tongue-scanning tool called Gixam can help find advanced colorectal polyps in people with negative stool tests. If it works, it might offer a simpler screening option alongside colonoscopy.
Orlando, FloridaAges 45–84 - NCT06775951Recruiting
Colonoscopy use: a look at its impact
This trial studies how well colonoscopies are used in normal care. It aims to understand the medical and economic effects of doing colonoscopies for the right reasons.
BolognaAges 18 years+ - NCT06675227Recruiting
Comparing drinks for colonoscopy prep: Electrolyte beverages vs water
This trial looks at whether using electrolyte drinks instead of water to mix your colonoscopy prep medicine (sodium phosphate or polyethylene glycol) makes the prep easier or more effective. It may help you feel less bloated or nauseated during bowel preparation.
Chongqing, Chongqing MunicipalityAges 18 years+ - NCT07685652Recruiting
Better prep for colonoscopy with video and booklet
This study tests if watching a short video and reading a booklet helps patients prepare better for a colonoscopy compared to just getting standard instructions. Good preparation makes the procedure safer and more effective.
Sibu, SarawakAges 18 years+ - NCT05125939Recruiting
Testing if one colonoscopy score can replace another
This study looks at whether a colonoscopy “detection score” for overall abnormal growths can stand in for a more specific screening score. It may help improve how screening quality is measured during colonoscopy.
North Hills, CaliforniaAges 50–80 - NCT07696793RecruitingPhase 4
Simethicone colonoscopy prep for cancer screening
This trial tests a colonoscopy preparation drink that contains simethicone (a gas-relief ingredient) to see if it works better than standard prep for people who are already scheduled for a screening colonoscopy after a positive stool test. It may help make the procedure more comfortable and effective.
Barcelona, BarcelonaAges 50–69 - NCT07684716Recruiting
Personalized non-drug help for colonoscopy prep
This study tests a personalized, non-drug method to improve bowel preparation for colonoscopy. If you are scheduled for a colonoscopy and need to take laxatives, this approach might help you get better results.
Shenyang, LiaoningAges 18 years+ - NCT05935124Recruiting
White light or narrow-band imaging for colon polyp detection
This trial compares two camera light styles during screening colonoscopy to see which one better finds polyps on the right side of the colon. If you’re having a routine screening and have no concerning symptoms, the results may help improve how doctors spot polyps early.
Sydney, New South WalesAges 18 years+ - NCT07089615Recruiting
Capsule vs colonoscopy for polyp detection
This trial tests a new capsule that you swallow to take pictures of your colon. It may help find polyps (growths that can turn into cancer) as well as a standard colonoscopy does.
Chula Vista, CaliforniaAges 45–75 - NCT05822895Recruiting
Testing a real-time computer to help find colon polyps
This study checks whether a computer tool helps doctors find colon polyps during routine colonoscopy. If the tool improves detection, it could help find growths earlier and guide safer follow-up.
Singapore, SingaporeAges 21–90 - NCT06763432Recruiting
Colonoscopy readiness study
This study helps patients aged 45–75 at Codman Square Health Center get ready for a colonoscopy to screen for colon cancer. It aims to make the process easier and more comfortable.
Boston, MassachusettsAges 45–75 - NCT07127471Recruiting
Comparing two colonoscopy methods for finding pre-cancerous polyps
This study tests two different colonoscopy techniques to see which one finds more pre-cancerous polyps called serrated lesions. It may help your doctor choose the best way to screen for colon cancer during your procedure.
Montreal, QuebecAges 40–80 - NCT04113382RecruitingPhase 1/Phase 2
A bowel prep study for children having a colonoscopy
This trial tests a bowel-cleansing liquid called CLENPIQ in children ages 1 to 9 who need a colonoscopy. It aims to see if it works well and is safe for preparing the colon before the procedure.
Mobile, AlabamaAges 1–8 - NCT07218523RecruitingPhase 3
Bowel cleansing study for children having a colonoscopy
This study tests a bowel-cleansing medicine called PLENVU against another medicine (sodium picosulfate) in children aged 1 to under 18 who need a colonoscopy. The goal is to see which one works better at cleaning the bowel before the procedure.
Edegem, AntwerpAges 1–17 - NCT07365436Enrolling by invitation
Better colon imaging with a new probe
This trial tests a new camera probe that works with a standard colonoscope to take better images of the colon. It may help doctors find polyps or other issues more clearly during a routine colonoscopy.
Boston, MassachusettsAges 45–75 - NCT05067595RecruitingPhase 1
Fecal transplant plus fiber for gut graft-versus-host disease
This Phase 1 study tests whether a fecal microbiota transplant (a stool-based treatment from a screened donor) plus a dietary fiber supplement can improve gut symptoms after a bone marrow transplant. It is aimed at people with mild to severe gut graft-versus-host disease (GVHD).
Seattle, WashingtonAges 18 years+ - NCT07215000RecruitingPhase 4
Better Colonoscopy Prep Options for Comfort
This trial compares different colonoscopy prep methods to see which one patients tolerate best. It aims to make the cleaning process before a colonoscopy more comfortable and acceptable.
Atlanta, GeorgiaAges 18 years+ - NCT06748638Enrolling by invitationPhase 4
Lactulose and linaclotide for colonoscopy prep
This trial tests whether taking lactulose together with linaclotide can improve bowel cleansing before a colonoscopy. If you are scheduled for a colonoscopy, this study may help make the preparation more effective.
Nanjing, JiangsuAges 18–80 - NCT06656312Recruiting
EndoAim AI for colon polyp detection
This study tests an artificial intelligence (AI) system called EndoAim that helps doctors find polyps during a colonoscopy. It is for people having a routine colonoscopy with an Olympus endoscope.
Taichung, North Dist.Ages 20 years+
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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.