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ClinicalTrials.gov public records Last synced Oct 22, 2026, 2:16 AM EDT

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Showing 121–144 of 391 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Polyp Clear all
Completed No phase listed Observational Results available

Vitamin D and Screening Colonoscopy or Polyp Surveillance

NCT02269332
View directory record Official record
Conditions
Colon Cancer
Interventions
Screening Colonoscopy
Other
Lead sponsor
Mike O'Callaghan Military Hospital
Federal
Eligibility
18 Years and older
Enrollment
298 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Jan 22, 2024 · Synced Oct 22, 2026, 2:16 AM EDT
Completed Phase 3 Interventional

Long-term Follow-up Study Designed to Evaluate the Relative Risk of Two Colonoscopy Schedules for Patients With Small Polyps

NCT00032344
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Colonoscopy
Procedure
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
50 Years to 75 Years
Enrollment
3,200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1993 – 2007
U.S. locations
13
States / cities
Phoenix, Arizona • Tucson, Arizona • Long Beach, California + 10 more
Source: ClinicalTrials.gov public record
Updated Aug 31, 2018 · Synced Oct 22, 2026, 2:16 AM EDT
Recruiting No phase listed Observational

A Personalized Surveillance and Intervention Protocol for Patients With Familial Adenomatous Polyposis That Have Undergone (Procto)Colectomy

NCT04678011
View directory record Official record
Conditions
Familial Adenomatous Polyposis
Interventions
Personalized surveillance and intervention protocol
Procedure
Lead sponsor
Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 23, 2026 · Synced Oct 22, 2026, 2:16 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Optimization of the Bowel Preparation Regimen for the PillCam® COLON 2 Capsule Endoscopy Procedure

NCT02481219
View directory record Official record
Conditions
Colorectal Cancer Screening
Interventions
PillCam® COLON 2 procedure-CONTROL, Senna tablets, PEG, Metoclopramide, Erythromycin, SUPREP oral sulfate solution, Bisacodyl, SUPREP oral sulfate solution with Gastrografin
Device · Drug
Lead sponsor
Medtronic - MITG
Industry
Eligibility
50 Years to 75 Years
Enrollment
122 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
6
States / cities
Anniston, Alabama • Indianapolis, Indiana • Dayton, Ohio + 2 more
Source: ClinicalTrials.gov public record
Updated Mar 7, 2017 · Synced Oct 22, 2026, 2:16 AM EDT
Withdrawn No phase listed Observational

Association of Periostin Levels and Chronic Sinusitis

NCT02071667
View directory record Official record
Conditions
Sinusitis, Nasal Polyps
Interventions
Blood draw
Other
Lead sponsor
University of Virginia
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated May 4, 2017 · Synced Oct 22, 2026, 2:16 AM EDT
Recruiting Not applicable Interventional

Prospective, Open-label, Non-significant Risk, Multicenter Study Comparing the Polyp Detection of the Study Device to That of the Colonoscopy Reference

NCT07089615
View directory record Official record
Conditions
Colonic Polyps
Interventions
Capsule swallow
Device
Lead sponsor
Capso Vision, Inc.
Industry
Eligibility
45 Years to 75 Years
Enrollment
330 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
11
States / cities
Chula Vista, California • Lancaster, California • Orange, California + 8 more
Source: ClinicalTrials.gov public record
Updated May 8, 2026 · Synced Oct 22, 2026, 2:16 AM EDT
Completed Phase 2 Interventional

A Proof-of-concept Study of Lunsekimig Compared With Placebo in Adults With Chronic Rhinosinusitis With Nasal Polyps

NCT06454240
View directory record Official record
Conditions
Chronic Rhinosinusitis With Nasal Polyps
Interventions
lunsekimig, placebo
Drug
Lead sponsor
Sanofi
Industry
Eligibility
18 Years to 70 Years
Enrollment
79 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
14
States / cities
La Jolla, California • Roseville, California • San Diego, California + 11 more
Source: ClinicalTrials.gov public record
Updated Apr 28, 2026 · Synced Oct 22, 2026, 2:16 AM EDT
Terminated No phase listed Observational

The Utility of Time Segmental Withdrawal During Screening Colonoscopy for Increasing Adenoma Detection Rate.

NCT02538406
View directory record Official record
Conditions
Adenomatous Polyp of Colon
Interventions
Segmental withdrawal
Other
Lead sponsor
Baylor College of Medicine
Other
Eligibility
18 Years to 80 Years
Enrollment
232 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 28, 2020 · Synced Oct 22, 2026, 2:16 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

De-implementation of Outdated Colonoscopy Surveillance Interval Recommendations Among Patients With Low-risk Adenomas

NCT05389397
View directory record Official record
Conditions
Polyp of Colon
Interventions
Outreach
Behavioral
Lead sponsor
Kaiser Permanente
Other
Eligibility
54 Years to 70 Years
Enrollment
604 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Sep 14, 2023 · Synced Oct 22, 2026, 2:16 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Polyp Detection With the EndoRings™: A Randomized Tandem Colonoscopy Study

NCT01955122
View directory record Official record
Conditions
Colon Cancer
Interventions
Tandem Colonoscopy
Device
Lead sponsor
EndoAid
Industry
Eligibility
40 Years to 75 Years
Enrollment
126 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Mar 6, 2017 · Synced Oct 22, 2026, 2:16 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Biopsy Forceps Versus Cold Snare for the Resection of Small Colonic Polyps

NCT02239549
View directory record Official record
Conditions
Colonic Polyps
Interventions
Jumbo cold forceps polypectomy, Cold snare polypectomy
Device
Lead sponsor
San Diego Veterans Healthcare System
Federal
Eligibility
18 Years to 80 Years
Enrollment
419 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2014
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Sep 12, 2014 · Synced Oct 22, 2026, 2:16 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Endoscopic Resection of Large Colorectal Polyps: An Observational Cohort Study

NCT04220905
View directory record Official record
Conditions
Colonic Polyp, Colonoscopy, Complication, Recurrence, Duodenal Polyp
Interventions
Not listed
Lead sponsor
White River Junction Veterans Affairs Medical Center
Federal
Eligibility
18 Years and older
Enrollment
1,500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2025
U.S. locations
1
States / cities
White River Junction, Vermont
Source: ClinicalTrials.gov public record
Updated Jul 5, 2024 · Synced Oct 22, 2026, 2:16 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Laser Assisted Treatment of Chronic Sinusitis With and Without Light Activated Agents

NCT00948519
View directory record Official record
Conditions
Rhinosinusitis
Interventions
Laser + ICG, Laser only
Device
Lead sponsor
New York Head & Neck Institute
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
3
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 22, 2011 · Synced Oct 22, 2026, 2:16 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Study to Evaluate the Safety and Efficacy of the Use of ME-APDS During Colonoscopy

NCT04640792
View directory record Official record
Conditions
Screening Colonoscopy, Surveillance Colonoscopy
Interventions
Screening or Surveillance Conventionall colonoscopy
Procedure
Lead sponsor
Magentiq Eye LTD
Industry
Eligibility
18 Years to 90 Years
Enrollment
952 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
4
States / cities
Baltimore, Maryland • New York, New York • Cleveland, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated May 5, 2022 · Synced Oct 22, 2026, 2:16 AM EDT
Recruiting Phase 4 Interventional

Biologics in Chronic Rhinosinusitis With Nasal Polyposis

NCT06824649
View directory record Official record
Conditions
Chronic Sinusitis, Nasal Polyps
Interventions
Biologic Agents
Biological
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
504 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
3
States / cities
Gainesville, Florida • Portland, Oregon • Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Sep 28, 2026 · Synced Oct 22, 2026, 2:16 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Evaluation of Blood as a Submucosal Cushion During Endoscopic Polypectomy and Mucosal Resection

NCT00583466
View directory record Official record
Conditions
Large Polyps in the Gastrointestinal Tract
Interventions
Autologous blood injection, Normal saline, HPMC
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 90 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 13, 2017 · Synced Oct 22, 2026, 2:16 AM EDT
Completed Phase 2 Interventional Results available

Acetylsalicylic Acid and Eflornithine in Treating Patients at High Risk for Colorectal Cancer

NCT00983580
View directory record Official record
Conditions
Adenomatous Polyp
Interventions
Aspirin, Eflornithine, Laboratory Biomarker Analysis, Placebo, Telephone-Based Intervention
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
40 Years and older
Enrollment
107 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2019
U.S. locations
3
States / cities
Chicago, Illinois • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 4, 2019 · Synced Oct 22, 2026, 2:16 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Gastroenterology Artificial INtelligence System for Detecting Colorectal Polyps (The GAIN Study)

NCT05275556
View directory record Official record
Conditions
Colon Adenoma, Colon Polyp, Colon Lesion
Interventions
Computer-Assisted Detection (CADe) Device
Device
Lead sponsor
Verily Life Sciences LLC
Industry
Eligibility
45 Years to 80 Years
Enrollment
1,410 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
5
States / cities
Rochester, Minnesota • Durham, North Carolina • Mentor, Ohio + 2 more
Source: ClinicalTrials.gov public record
Updated Jan 14, 2025 · Synced Oct 22, 2026, 2:16 AM EDT
Active, not recruiting Phase 2 Interventional

Mechanisms of Benefit of IL4RA Inhibition in Aspirin-Exacerbated Respiratory Disease

NCT05575037
View directory record Official record
Conditions
Nasal Polyps, Asthma, Aspirin-Induced, Aspirin-Exacerbated Respiratory Disease, Aspirin-Sensitive Asthma With Nasal Polyps
Interventions
Dupilumab
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 75 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 13, 2026 · Synced Oct 22, 2026, 2:16 AM EDT
Terminated Phase 2 Interventional Results available

Doxycycline in Treating Patients With Chronic Rhinosinusitis With Nasal Polyps

NCT02569437
View directory record Official record
Conditions
Polyp of Nasal Sinus
Interventions
Doxycycline, methylprednisolone, nasal saline spray, Flonase, sugar pill
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 9, 2018 · Synced Oct 22, 2026, 2:16 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Evaluation of C-Scan Capsule in Identifying Subjects With Elevated Risk of Colon Polyps

NCT05271656
View directory record Official record
Conditions
Healthy
Interventions
C-Scan System
Device
Lead sponsor
Check-Cap Ltd.
Industry
Eligibility
45 Years to 75 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
3
States / cities
Phoenix, Arizona • Rochester, Minnesota • New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 28, 2023 · Synced Oct 22, 2026, 2:16 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Unprepped CT Colonography

NCT00586053
View directory record Official record
Conditions
Colorectal Neoplasms
Interventions
Not listed
Lead sponsor
Mayo Clinic
Other
Eligibility
40 Years and older
Enrollment
1,255 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2000 – 2009
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 11, 2010 · Synced Oct 22, 2026, 2:16 AM EDT
Recruiting Early Phase 1 Interventional

Project 4: Ambulatory Biofeedback and Voice Therapy for Patients With Vocal Hyperfunction

NCT05970562
View directory record Official record
Conditions
Voice Disorders, Vocal Fold Polyp, Vocal Nodules in Adults, Muscle Tension Dysphonia
Interventions
Ambulatory Voice Monitoring with Biofeedback (AVM-B), Conversation Training Therapy
Device · Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 8, 2026 · Synced Oct 22, 2026, 2:16 AM EDT