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ClinicalTrials.gov public records Last synced Oct 28, 2026, 10:43 AM EDT

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Showing 1–24 of 27 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Conventional Colonoscopy Clear all
Completed Not applicable Interventional

Underwater Resection of Non-pedunculated Colorectal Lesions

NCT02889679
View directory record Official record
Conditions
Colorectal Neoplasms
Interventions
Underwater resection, Conventional (gas distended colon) resection, Standard polypectomy
Procedure
Lead sponsor
VA Northern California Health Care System
Federal
Eligibility
18 Years and older
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Mather, California
Source: ClinicalTrials.gov public record
Updated Dec 20, 2018 · Synced Oct 28, 2026, 10:43 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Promotora-based Latino Family CVD Risk Reduction

NCT01714271
View directory record Official record
Conditions
Heart Disease, Cancer
Interventions
Home environs-based lifestyle counseling, Cancer early detection
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
204 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Oct 2, 2023 · Synced Oct 28, 2026, 10:43 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

AI_Colonoscopy_for_Fellows

NCT07661914
View directory record Official record
Conditions
AI-assisted Colonoscopy
Interventions
AI assisted colonoscopy, Conventional Colonoscopy
Device · Other
Lead sponsor
University of Oklahoma
Other
Eligibility
Not listed
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Jun 22, 2026 · Synced Oct 28, 2026, 10:43 AM EDT
Completed Not applicable Interventional

Randomized Controlled Trial Comparing Water vs. Air Method for Performing Colonoscopy in Adult Female Subjects

NCT01790425
View directory record Official record
Conditions
Screening for Colon Cancer
Interventions
to infuse water into colon to open the lumen for water infusion colonoscopy, Air colonoscopy
Procedure
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 80 Years · Female only
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Jun 27, 2017 · Synced Oct 28, 2026, 10:43 AM EDT
Completed No phase listed Observational

Computer Assisted Detection of Neoplasia During Colonoscopy Evaluation

NCT05888623
View directory record Official record
Conditions
Colorectal Neoplasms
Interventions
Computer Assisted Detection
Device
Lead sponsor
VA Puget Sound Health Care System
Federal
Eligibility
Not listed
Enrollment
334,200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Oct 14, 2025 · Synced Oct 28, 2026, 10:43 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Comparing Clinical Performance of Novice Trainee Endoscopists Using Conventional Air Insufflation Versus Warm Water Infusion Colonoscopy

NCT01482546
View directory record Official record
Conditions
Colonoscopy Education
Interventions
Not listed
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2016
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Jun 27, 2017 · Synced Oct 28, 2026, 10:43 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

The Utility of Cap Colonoscopy in Increasing Adenoma Detection Rate

NCT01601431
View directory record Official record
Conditions
Adenoma
Interventions
Cap Assisted Colonoscopy, Conventional colonoscopy
Device
Lead sponsor
Texas Tech University Health Sciences Center, El Paso
Other
Eligibility
18 Years to 80 Years
Enrollment
440 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2015
U.S. locations
1
States / cities
El Paso, Texas
Source: ClinicalTrials.gov public record
Updated Jun 7, 2018 · Synced Oct 28, 2026, 10:43 AM EDT
Completed Not applicable Interventional

Carbon Dioxide Insufflation Versus Conventional Air Insufflation

NCT02790359
View directory record Official record
Conditions
Abdominal Pain
Interventions
Air, Carbon dioxide
Other
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
8 Years to 21 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Dec 13, 2019 · Synced Oct 28, 2026, 10:43 AM EDT
Completed Phase 4 Interventional

Evaluation Of The Efficacy Of HalfLYTELY For Bowel Cleansing Before Virtual Colonoscopy and Conventional Colonoscopy.

NCT00164177
View directory record Official record
Conditions
Colonoscopy
Interventions
HalfLytely
Drug
Lead sponsor
Braintree Laboratories
Industry
Eligibility
18 Years and older
Enrollment
20 participants
Timeline
Started 2004
U.S. locations
1
States / cities
Vero Beach, Florida
Source: ClinicalTrials.gov public record
Updated Feb 7, 2013 · Synced Oct 28, 2026, 10:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

RCT of Air Insufflation Versus Water Infusion Colonoscopy by Supervised Trainees

NCT00841282
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Colonoscopy for colorectal cancer screening, Water Infusion Colonoscopy, Air insufflation colonoscopy
Procedure
Lead sponsor
East Bay Institute for Research and Education
Other
Eligibility
50 Years to 80 Years
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Mather, California
Source: ClinicalTrials.gov public record
Updated Feb 11, 2009 · Synced Oct 28, 2026, 10:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Clinical Study of Real Time Colorectal Polyp Diagnosis During Colonoscopy - the VALID Colonoscopy Study

NCT01288833
View directory record Official record
Conditions
Colorectal Neoplasm, Colonic Polyps
Interventions
Close focus HD NBI Colonoscopy System
Device
Lead sponsor
VA Palo Alto Health Care System
Federal
Eligibility
18 Years and older
Enrollment
558 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2015
U.S. locations
2
States / cities
Palo Alto, California • Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 1, 2018 · Synced Oct 28, 2026, 10:43 AM EDT
Completed No phase listed Observational

Compare Conventional Colonosocpy to Endoscopic AFI, NBI for Dysplasia Detection for Ulcerative Colitis & Cholangitis

NCT00587236
View directory record Official record
Conditions
Colitis, Ulcerative, Cholangitis, Sclerosing
Interventions
Not listed
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 75 Years
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 14, 2016 · Synced Oct 28, 2026, 10:43 AM EDT
Completed Not applicable Interventional

Unsedated Colonoscopy for Colorectal Cancer Screening and Surveillance

NCT01383252
View directory record Official record
Conditions
Colon Polyp
Interventions
Water infusion in lieu of air insufflation, Air method
Procedure
Lead sponsor
VA Northern California Health Care System
Federal
Eligibility
50 Years to 75 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
1
States / cities
Mather, California
Source: ClinicalTrials.gov public record
Updated Jun 17, 2013 · Synced Oct 28, 2026, 10:43 AM EDT
Not listed Not applicable Interventional

Prospective Study for Evaluating Colon Polyp Histology With in Vivo Probe Based Confocal Laser Endomicroscopy

NCT01214031
View directory record Official record
Conditions
Colon Polyps, Adenomatous Polyps, Colon Cancer
Interventions
Confocal laser endomicroscopy (CLE)
Device
Lead sponsor
Midwest Biomedical Research
Other
Eligibility
18 Years to 85 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 9, 2012 · Synced Oct 28, 2026, 10:43 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Comparison of on Demand Sedation With Study Method Versus on Demand Sedation With Conventional Method for Performing Colonoscopy for Colorectal Cancer Screening and Surveillance

NCT00920751
View directory record Official record
Conditions
Colorectal Cancer Screening
Interventions
Water infusion, Air insufflation
Procedure
Lead sponsor
East Bay Institute for Research and Education
Other
Eligibility
50 Years to 80 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2009
U.S. locations
1
States / cities
Mather, California
Source: ClinicalTrials.gov public record
Updated Jun 15, 2009 · Synced Oct 28, 2026, 10:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Usefulness of A Scope Guide Assisted Colonoscopy Versus Conventional Colonoscopy

NCT02739893
View directory record Official record
Conditions
Colonoscopy, Colorectal
Interventions
Scope Guide Assist, Standard procedure for colonoscopy
Procedure
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
19 Years and older
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Feb 20, 2019 · Synced Oct 28, 2026, 10:43 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Clinical Evaluation of Narrow Band Imaging Colonoscope

NCT00628147
View directory record Official record
Conditions
Colonic Neoplasms
Interventions
Narrow band imaging colonoscope
Device
Lead sponsor
VA Palo Alto Health Care System
Federal
Eligibility
18 Years and older
Enrollment
284 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Mar 8, 2017 · Synced Oct 28, 2026, 10:43 AM EDT
Completed Phase 4 Interventional

Bowel Preparation for Inpatient Colonoscopy

NCT01169220
View directory record Official record
Conditions
Gastrointestinal Hemorrhage, Colon Cancer, Diverticulosis
Interventions
Go Lytely
Drug
Lead sponsor
Santa Clara Valley Health & Hospital System
Other
Eligibility
18 Years and older
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
San Jose, California
Source: ClinicalTrials.gov public record
Updated Oct 5, 2017 · Synced Oct 28, 2026, 10:43 AM EDT
Enrolling by invitation Not applicable Interventional

Cold Snare Piecemeal Resection vs Cold Snare Endoscopic Mucosal Resection

NCT06462521
View directory record Official record
Conditions
Colon Polyp, Colon Adenoma, Serrated Polyp
Interventions
Cold Snare Piecemeal Resection (CSPR), Cold Snare Endoscopic Mucosal Resection (Cold EMR)
Procedure
Lead sponsor
Indiana University
Other
Eligibility
18 Years and older
Enrollment
570 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
7
States / cities
Birmingham, Alabama • Aurora, Colorado • Chicago, Illinois + 4 more
Source: ClinicalTrials.gov public record
Updated Oct 21, 2026 · Synced Oct 28, 2026, 10:43 AM EDT
Not listed Not applicable Interventional

HFNC Versus Conventional Nasal Cannula in Oxygen Performance in Patients Receiving Colonoscopy Under IV Sedation

NCT02968706
View directory record Official record
Conditions
Desaturation of Blood
Interventions
High Flow Nasal Cannula, Conventional Nasal Cannula, Patient satisfaction questionnaire
Device · Other
Lead sponsor
Aventura Hospital and Medical Center
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Aventura, Florida
Source: ClinicalTrials.gov public record
Updated Feb 20, 2017 · Synced Oct 28, 2026, 10:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

AI Colorectal Polyp Detection

NCT04979962
View directory record Official record
Conditions
Polyp Colorectal, Adenoma Colon
Interventions
EW10-EC02 (Endoscopy Support Program)
Device
Lead sponsor
Fujifilm Medical Systems USA, Inc.
Industry
Eligibility
45 Years and older
Enrollment
1,162 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
10
States / cities
Los Angeles, California • Largo, Florida • Chestnut Hill, Massachusetts + 4 more
Source: ClinicalTrials.gov public record
Updated Sep 18, 2023 · Synced Oct 28, 2026, 10:43 AM EDT
Active, not recruiting Phase 3 Interventional

Nivolumab After Combined Modality Therapy in Treating Patients With High Risk Stage II-IIIB Anal Cancer

NCT03233711
View directory record Official record
Conditions
Anal Basaloid Carcinoma, Anal Canal Cloacogenic Carcinoma, Anal Margin Squamous Cell Carcinoma, Stage IIB Anal Cancer AJCC v8, Stage III Anal Cancer AJCC v8
Interventions
Biopsy Procedure, Biospecimen Collection, Colonoscopy, Computed Tomography, Digital Rectal Examination, High Resolution Anoscopy, Magnetic Resonance Imaging, Nivolumab, Patient Observation, Proctoscopy, Sigmoidoscopy, X-Ray Imaging
Procedure · Biological · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
344 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2027
U.S. locations
887
States / cities
Birmingham, Alabama • Anchorage, Alaska • Fairbanks, Alaska + 568 more
Source: ClinicalTrials.gov public record
Updated Oct 26, 2026 · Synced Oct 28, 2026, 10:43 AM EDT
Completed Not applicable Interventional

Improving Competency and Metrics for PoLypectomy Skills Using Evaluation Tools and VidEo Feedback (COMPLETE)

NCT03115008
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Video-based terminal feedback
Behavioral
Lead sponsor
San Francisco Veterans Affairs Medical Center
Federal
Eligibility
25 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Nov 5, 2020 · Synced Oct 28, 2026, 10:43 AM EDT
Completed No phase listed Observational

Can Overall Adenoma Detection Rate Replace Screening Adenoma Detection Rate ? Multicenter Study

NCT05125939
View directory record Official record
Conditions
Adenoma Detection Rate, Colonoscopy
Interventions
Comparison of ADR
Other
Lead sponsor
Evergreen General Hospital, Taiwan
Other
Eligibility
50 Years to 80 Years
Enrollment
2,707 participants
Timeline
2021 – 2026
U.S. locations
1
States / cities
North Hills, California
Source: ClinicalTrials.gov public record
Updated Sep 11, 2026 · Synced Oct 28, 2026, 10:43 AM EDT