Colonoscopy Clinical Trials

44 recruitingLast updated: June 17, 2026

There are 44 actively recruiting colonoscopy clinical trials across 23 countries. Studies span Not Applicable, Phase 4, Phase 3, Phase 1, Phase 2. Top locations include Shanghai, Shanghai Municipality, China, Pessac, France, Beijing, Beijing Municipality, China. Updated daily from ClinicalTrials.gov.


Colonoscopy Trials at a Glance

44 actively recruiting trials for colonoscopy are listed on ClinicalTrialsFinder across 6 cities in 23 countries. The largest study group is Not Applicable with 24 trials, with the heaviest enrollment activity in Shanghai, Pessac, and Beijing. Lead sponsors running colonoscopy studies include Changhai Hospital, Evergreen General Hospital, Taiwan, and National Taiwan University Hospital.

Browse colonoscopy trials by phase

Treatments under study

About Colonoscopy Clinical Trials

Looking for clinical trials for Colonoscopy? There are currently 30 studies actively recruiting participants. Clinical trials offer access to new treatments before they are widely available, and every approved therapy in use today was first tested through a clinical trial.

Below you can browse trials, sign up for alerts when new Colonoscopy trials open, and view eligibility criteria for each study. Each listing includes the study phase, locations, and enrollment details.

Frequently Asked Questions

Common questions about Colonoscopy clinical trials

A clinical trial is a carefully designed research study that tests new medical treatments, drugs, devices, or approaches in human volunteers. Every approved medication and treatment available today was proven safe and effective through clinical trials.

All clinical trials are reviewed and approved by Institutional Review Boards (IRBs) — independent committees that evaluate patient safety. Trials follow strict protocols, and your health is monitored closely throughout. You can withdraw at any time.

Not necessarily. Many trials compare the new treatment against the current standard of care, meaning all participants receive active treatment. When placebos are used, they are typically combined with standard treatment, not given alone. The trial description will always specify the design.

Under the Affordable Care Act, most private insurers are required to cover routine patient care costs during a clinical trial. The sponsor typically covers the investigational treatment itself. Medicare also covers routine costs for qualifying trials.

Yes. Participation is completely voluntary. You can withdraw at any time, for any reason, without it affecting your access to standard medical care.

Each trial has specific eligibility criteria — including age, diagnosis, disease stage, prior treatments, and general health. Browse the trials listed above and check their eligibility sections. You can also contact the trial site directly to discuss your situation.

Showing 120 of 44 trials

Recruiting
Not Applicable

Electrolyte Beverage Combined With Polyethylene Glycol for Colonoscopy Bowel Preparation

ColonoscopyColorectal Cancer ScreeningBowel Preparation Solutions
Nanfang Hospital, Southern Medical University405 enrolled1 locationNCT07608120
Recruiting
Not Applicable

Comparing Three Rescue Bowel Preparation Regimens for Colonoscopy After Failed Cleansing

Bowel Cleansing for ColonoscopyInadequate Bowel Preparation
Ospedale San Pio220 enrolled1 locationNCT07557173
Recruiting
Not Applicable

Pre-packaged Low-residue Diet for Bowel Preparation in Patients With Inflammatory Bowel Disease

ColonoscopyIBD (Inflammatory Bowel Disease)Colonoscopy bowel preparation
Changhai Hospital1,000 enrolled1 locationNCT07353853
Recruiting

Analysis of Factors Influencing the Quality of Bowel Preparation Before Colonoscopy in IBD Patients

ColonoscopyIBD (Inflammatory Bowel Disease)Colonoscopy bowel preparation
Changhai Hospital1,000 enrolled1 locationNCT07335705
Recruiting
Not Applicable

Pre-Packaged Low-Residue Diet Assisting Bowel Preparation in Patients With Inflammatory Bowel Disease

IBD (Inflammatory Bowel Disease)Colonoscopy bowel preparation
Changhai Hospital500 enrolled2 locationsNCT07165470
Recruiting
Phase 4

Intestinal Preparation in Colonoscopy: Lactulose vs Sodium Phosphate.

Bowel preparation for colonoscopy
Hospital Civil de Guadalajara300 enrolled4 locationsNCT07060222
Recruiting
Not Applicable

The Impact of Image-Assisted Colonoscope on Patient Experience, Physician Workload, and Examination Quality

Colorectal Cancer ScreeningColonic Polyps/Colonoscopy/Colorectal NeoplasmsDifficult Colonoscopy+1 more
DONG WU200 enrolled1 locationNCT07541924
Recruiting
Not Applicable

Optimal Bowel Preparation in Geriatric Patients With a Instructional Animation Video Before Colonoscopy

Geriatric PatientBowel Preparation Before ColonoscopyInstructional Methods
Mersin University80 enrolled1 locationNCT06794112
Recruiting
Not Applicable

Efficacy of CAD in Screening Colonoscopy to Reduce the Risk of Advanced Adenoma at 3 Years.

Colorectal NeoplasmsColonoscopyIntestinal Polyps
University Hospital, Bordeaux592 enrolled13 locationsNCT07299071
Recruiting
Phase 3

Clinical Trial on Bowel Preparation Comparing Mannitol 100g to Plenvu Both in a Same Day Regimen (CLEARWAY)

Elective colonoscopy
NTC srl412 enrolled18 locationsNCT07465705
Recruiting
Not Applicable

Colonoscopy TRaining With or Without Artificial INtelligence Among Endoscopy Residents

Colonoscopy Training
University of Thessaly10 enrolled1 locationNCT07420309
Recruiting
Phase 1Phase 2

Linaclotide for Colonoscopy Bowel Prep

Patients Scheduled for Colonoscopy
University of Florida10 enrolled1 locationNCT06692673
Recruiting

What Influence Re-participation in the Danish Colorectal Screening Program.

PainColonoscopyScreening Colonscopy
Esbjerg Hospital - University Hospital of Southern Denmark8,000 enrolled8 locationsNCT07353632
Recruiting
Not Applicable

Video Tutorial and Oral Explanation Vs Oral Explanation Alone in Colonoscopy Preparation

ColonoscopyGastro-Intestinal Disorder
Centre Hospitalier Saint Joseph Saint Luc de Lyon574 enrolled5 locationsNCT07355777
Recruiting
Not Applicable

4-L Split-dose Polyethylene Glycol and Bisacodyl and Docusate Sodium Regimen Versus 2-L Split-dose Polyethylene Glycol Plus Oral Simethicone Regimen for Bowel Preparation Before Colonoscopy

Colonoscopy Preparation
Tanta University450 enrolled1 locationNCT07328880
Recruiting

ColoReg: A Register for Gastrointestinal Endoscopy Reports and Examination Videos

Colorectal, CancerColonoscopyPolypectomy
Wuerzburg University Hospital1,834 enrolled2 locationsNCT06920680
Recruiting
Not Applicable

Total Underwater Colonoscopy (TUC) for Improved Colorectal Cancer Screening: A Randomized Controlled Trial

Colorectal, CancerColorectal Cancer ScreeningColorectal Neoplasia+2 more
Vestre Viken Hospital Trust1,070 enrolled5 locationsNCT06333392
Recruiting
Phase 4

The Impact of GLP Medication on Colonoscopy Bowel Preparation Quality

Bowel preparation for colonoscopyGLP - 1
The Cleveland Clinic132 enrolled3 locationsNCT07127354
Recruiting
Not Applicable

The Effect of Video-Based Education on Colonoscopy Preparation

ColonoscopyPatient EducationBowel Preparation Quality
Eskisehir Osmangazi University246 enrolled1 locationNCT07229066
Recruiting
Phase 4

Cleansing Options in Out-Patient Setting to Improve Tolerance (COOP SIT) Trial

Colorectal Cancer ScreeningBowel Cleansing for Colonoscopy
Morehouse School of Medicine300 enrolled1 locationNCT07215000