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ClinicalTrials.gov public records Last synced Oct 22, 2026, 4:51 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 193–216 of 391 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Polyp Clear all
Completed No phase listed Observational

Early Post-Op Recovery After Partial Large Bowel Resection

NCT00492193
View directory record Official record
Conditions
Diverticulitis, Colon Polyps, Colorectal Cancer
Interventions
Not listed
Lead sponsor
University Hospitals Cleveland Medical Center
Other
Eligibility
18 Years to 80 Years
Enrollment
139 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 15, 2014 · Synced Oct 22, 2026, 4:51 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Quad Resection (Hot Snare vs Cold Snare vs Hot EMR vs Cold EMR)

NCT03462706
View directory record Official record
Conditions
Colon Cancer, Colon Polyp, Colon Adenoma
Interventions
Cold Snare, Hot Snare, Cold EMR, Hot EMR
Procedure
Lead sponsor
Indiana University
Other
Eligibility
40 Years and older
Enrollment
238 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Feb 15, 2023 · Synced Oct 22, 2026, 4:51 AM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety Study of Benralizumab for Patients With Severe Nasal Polyposis

NCT03401229
View directory record Official record
Conditions
Nasal Polyposis
Interventions
Benralizumab 30 mg SC + Mometasone Furoate, Matching placebo SC + Mometasone Furoate
Biological
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 75 Years
Enrollment
413 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
48
States / cities
Birmingham, Alabama • Fresno, California • Huntington Beach, California + 37 more
Source: ClinicalTrials.gov public record
Updated Oct 12, 2021 · Synced Oct 22, 2026, 4:51 AM EDT
Completed Phase 3 Interventional

Celecoxib to Prevent Colorectal Cancer in Patients Who Have Undergone Surgery to Remove Polyps

NCT00005094
View directory record Official record
Conditions
Colon Cancer, Rectal Cancer
Interventions
celecoxib, placebo
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
30 Years and older
Enrollment
1,170 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2000
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 12, 2013 · Synced Oct 22, 2026, 4:51 AM EDT
Completed Phase 3 Interventional Results available

A Clinical Trial of Omalizumab in Participants With Chronic Rhinosinusitus With Nasal Polyps

NCT03280537
View directory record Official record
Conditions
Nasal Polyps, Chronic Rhinosinusitis
Interventions
Omalizumab, Placebo
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years to 75 Years
Enrollment
127 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
16
States / cities
Birmingham, Alabama • Tucson, Arizona • Rancho Cordova, California + 13 more
Source: ClinicalTrials.gov public record
Updated Mar 23, 2020 · Synced Oct 22, 2026, 4:51 AM EDT
Terminated Phase 2Phase 3 Interventional Results available

Itraconazole for Fungal Sensitive Chronic Rhinosinusitis With Nasal Polyps

NCT02285283
View directory record Official record
Conditions
Chronic Rhinosinusitis
Interventions
Itraconazole, Placebo
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 75 Years
Enrollment
58 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 28, 2020 · Synced Oct 22, 2026, 4:51 AM EDT
Withdrawn No phase listed Observational

Study of Chronic Rhinosinusitis Symptoms in Asthma Patients Undergoing Treatment With Reslizumab

NCT03369574
View directory record Official record
Conditions
Chronic Rhinosinusitis (Diagnosis), Asthma, Nasal Polyps
Interventions
Reslizumab
Drug
Lead sponsor
University of Rochester
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Nov 13, 2019 · Synced Oct 22, 2026, 4:51 AM EDT
Completed Not applicable Interventional

Comparison of Adenoma Detection Miss Rates at Colonoscopy Associated With Different Withdrawal Times

NCT01802008
View directory record Official record
Conditions
Adenoma and/or Adenocarcinoma, Adenoma
Interventions
3-minute withdrawal time, 6-minute withdrawal time
Procedure
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
2
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Apr 30, 2015 · Synced Oct 22, 2026, 4:51 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers

Aspirin/Folate Prevention of Large Bowel Polyps

NCT00272324
View directory record Official record
Conditions
Colorectal Cancer, Polyps, Adenomas
Interventions
Aspirin, Folate
Drug
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
21 Years to 80 Years
Enrollment
1,121 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1992 – 2007
U.S. locations
8
States / cities
Los Angeles, California • Denver, Colorado • Iowa City, Iowa + 5 more
Source: ClinicalTrials.gov public record
Updated Mar 13, 2020 · Synced Oct 22, 2026, 4:51 AM EDT
Completed Phase 3 Interventional Results available

Study Evaluating the Efficacy and Safety of Intranasal Administration of OPN-375 in Subjects With Chronic Rhinosinusitis Without the Presence of Nasal Polyps

NCT03960580
View directory record Official record
Conditions
Chronic Rhinosinusitis
Interventions
OPN-375
Drug
Lead sponsor
Optinose US Inc.
Industry
Eligibility
18 Years and older
Enrollment
223 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
20
States / cities
Birmingham, Alabama • Folsom, California • La Mesa, California + 16 more
Source: ClinicalTrials.gov public record
Updated Dec 21, 2023 · Synced Oct 22, 2026, 4:51 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Cancer Control Following Polypectomy

NCT00591279
View directory record Official record
Conditions
Colon Cancer
Interventions
Not listed
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
Not listed
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1981 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 13, 2023 · Synced Oct 22, 2026, 4:51 AM EDT
Completed Phase 1 Interventional

Celecoxib in Preventing Colorectal Cancer in Young Patients With a Genetic Predisposition for Familial Adenomatous Polyposis

NCT00685568
View directory record Official record
Conditions
Colorectal Cancer, Precancerous Condition
Interventions
celecoxib, placebo
Drug · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
10 Years to 14 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2006
U.S. locations
4
States / cities
Cleveland, Ohio • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Nov 7, 2018 · Synced Oct 22, 2026, 4:51 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 22, 2026, 4:51 AM EDT
Completed Phase 2 Interventional Results available

Trial of Metformin for Colorectal Cancer Risk Reduction for History of Colorectal Adenomas and Elevated BMI

NCT01312467
View directory record Official record
Conditions
Adenomatous Polyp, Colorectal Cancer, Obesity
Interventions
metformin hydrochloride
Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
35 Years to 80 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
3
States / cities
Long Beach, California • Orange, California • Sacramento, California
Source: ClinicalTrials.gov public record
Updated Mar 5, 2019 · Synced Oct 22, 2026, 4:51 AM EDT
Completed No phase listed Observational

Prospective Evaluation of Combined Laparoscopy With CO2 Intraoperative Colonoscopy Treatment for Colorectal Lesions

NCT00725465
View directory record Official record
Conditions
Colorectal Polyps
Interventions
Not listed
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 30, 2019 · Synced Oct 22, 2026, 4:51 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Feasibility and Safety of Single Port Robot in Colorectal Procedures

NCT03700593
View directory record Official record
Conditions
Colon Cancer, Colon Polyp, Rectal Cancer, Diverticulitis, Prolapse, Rectal, Rectal Polyp, Inflammatory Bowel Diseases
Interventions
Single Port Robotic Colorectal Surgery
Device
Lead sponsor
Marks Colorectal Surgical Associates
Other
Eligibility
18 Years to 95 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Wynnewood, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 19, 2020 · Synced Oct 22, 2026, 4:51 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Complete Histologic Resection of Adenomatous Polyps?

NCT01224444
View directory record Official record
Conditions
Adenomatous Polyps
Interventions
standard polypectomy snare
Other
Lead sponsor
White River Junction Veterans Affairs Medical Center
Federal
Eligibility
40 Years to 85 Years
Enrollment
269 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2013
U.S. locations
2
States / cities
Lebanon, New Hampshire • White River Junction, Vermont
Source: ClinicalTrials.gov public record
Updated Jan 12, 2015 · Synced Oct 22, 2026, 4:51 AM EDT
Completed Not applicable Interventional

Improving the Frequency of Colonoscopy in Patients With a Previous Colorectal Polyp

NCT00397969
View directory record Official record
Conditions
Colorectal Cancer, Precancerous Condition
Interventions
counseling intervention, screening colonoscopy
Other · Procedure
Lead sponsor
Harvard Medical School (HMS and HSDM)
Other
Eligibility
21 Years and older
Enrollment
800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 19, 2013 · Synced Oct 22, 2026, 4:51 AM EDT
Completed No phase listed Observational

Tissue Immune Interaction in Nasal Polyposis

NCT04628442
View directory record Official record
Conditions
Chronic Rhinosinusitis (Diagnosis), Chronic Rhinosinusitis With Nasal Polyps, Asthma
Interventions
Sinonasal Debridement Procedure, Nasal Polyp Removal, Biopsy
Procedure
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 80 Years
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jul 30, 2025 · Synced Oct 22, 2026, 4:51 AM EDT
Completed No phase listed Observational

A Double Balloon Endoscopic Platform for ESD

NCT03551379
View directory record Official record
Conditions
Colon Adenoma, Colon Polyp
Interventions
Double Balloon Endoluminal Platform
Device
Lead sponsor
Lumendi, LLC
Industry
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Mineola, New York
Source: ClinicalTrials.gov public record
Updated Aug 20, 2019 · Synced Oct 22, 2026, 4:51 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Web-based Learning Module on Optical Diagnosis of Early Colorectal Cancer

NCT05663788
View directory record Official record
Conditions
Colorectal Cancer, Colorectal Cancer Stage I
Interventions
E-learning module
Other
Lead sponsor
Althaia Xarxa Assistencial Universitària de Manresa
Other
Eligibility
28 Years and older
Enrollment
166 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 7, 2024 · Synced Oct 22, 2026, 4:51 AM EDT
Completed Phase 3 Interventional

Polyp Prevention Trial

NCT00339625
View directory record Official record
Conditions
Diet, Polyps, Adenoma
Interventions
low fat, high fiber, high fruit and vegetable eating plan
Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
35 Years to 99 Years
Enrollment
2,079 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1991 – 2020
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated May 15, 2020 · Synced Oct 22, 2026, 4:51 AM EDT
Completed Phase 2 Interventional Results available

Safety and Performance of the Steroid-Releasing S8 Sinus Implant

NCT01894503
View directory record Official record
Conditions
Chronic Sinusitis
Interventions
S8 Sinus Implant (mometasone furoate, 1350 mcg)
Drug
Lead sponsor
Intersect ENT
Industry
Eligibility
18 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Jul 18, 2018 · Synced Oct 22, 2026, 4:51 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Polymerase Chain Reaction (PCR) Analysis of Nasal Polyps for Fungal DNA

NCT00739921
View directory record Official record
Conditions
Sinusitis, Nasal Polyps
Interventions
Nasal swab under endoscopic guidance
Procedure
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
260 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2015
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Dec 4, 2019 · Synced Oct 22, 2026, 4:51 AM EDT