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Showing 1–24 of 101 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Rectal Polyp Clear all
Completed Phase 3 Interventional Accepts healthy volunteers Results available

S0000D: Effect of Vitamin E and/or Selenium on Colorectal Polyps in Men Enrolled on SELECT Trial SWOG-S0000

NCT00706121
View directory record Official record
Conditions
Colorectal Cancer, Precancerous Condition
Interventions
Vitamin E, Selenium, Vitamin E placebo, selenium placebo
Drug
Lead sponsor
SWOG Cancer Research Network
Network
Eligibility
50 Years to 120 Years · Male only
Enrollment
8,094 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2018
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Dec 15, 2019 · Synced Jul 22, 2026, 4:23 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluation of Cold Forcep and Cold Snare Polypectomy for Polyps Less Than or Equal to 3mm in Size During Colonoscopy

NCT04551001
View directory record Official record
Conditions
Colo-rectal Cancer, Polyp of Colon, Adenomatous Polyp of Colon
Interventions
Cold forcep polypectomy, Cold snare polypectomy
Procedure
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
181 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated May 16, 2022 · Synced Jul 22, 2026, 4:23 AM EDT
Completed Not applicable Interventional

Computer Aided Detection of Polyps in the Colon

NCT03925337
View directory record Official record
Conditions
Polyp, Adenomatous, Colo-rectal Cancer
Interventions
Computer Aided Diagnostic Software
Device
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
22 Years and older
Enrollment
234 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
4
States / cities
Chicago, Illinois • Boston, Massachusetts • New York, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 19, 2021 · Synced Jul 22, 2026, 4:23 AM EDT
Recruiting No phase listed Observational

A Study of a Urine Test to Detect Colorectal Cancer

NCT07649057
View directory record Official record
Conditions
Colorectal Cancer, Precancerous Polyp, Rectal Bleeding, CRC
Interventions
3-metabolite biosensor
Diagnostic Test
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
210 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 14, 2026 · Synced Jul 22, 2026, 4:23 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 18, 2013 · Synced Jul 22, 2026, 4:23 AM EDT
Completed Phase 2 Interventional

High-Dose Folic Acid in Preventing Colorectal Cancer in Patients Who Have Had Polyps Surgically Removed

NCT00002650
View directory record Official record
Conditions
Colorectal Cancer
Interventions
folic acid
Dietary Supplement
Lead sponsor
Eastern Cooperative Oncology Group
Network
Eligibility
21 Years to 120 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1995 – 2009
U.S. locations
8
States / cities
Chicago, Illinois • Boston, Massachusetts • New York, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 21, 2023 · Synced Jul 22, 2026, 4:23 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Prevention of Colorectal Cancer Through Multiomics Blood Testing

NCT04369053
View directory record Official record
Conditions
Colon Cancer, Rectal Cancer, Colon Neoplasm, Colon Diseases, Colon Lesion, Colon Polyp, Colorectal Cancer, Polyp, Adenoma, Rectal Diseases, Gastrointestinal Tract Cancers
Interventions
Freenome test
Diagnostic Test
Lead sponsor
Freenome Holdings Inc.
Industry
Eligibility
45 Years to 85 Years
Enrollment
48,995 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
147
States / cities
Birmingham, Alabama • Huntsville, Alabama • Chandler, Arizona + 122 more
Source: ClinicalTrials.gov public record
Updated Dec 25, 2025 · Synced Jul 22, 2026, 4:23 AM EDT
Completed Phase 2 Interventional Results available

Erlotinib Hydrochloride in Treating Patients With Stage I-III Colorectal Cancer or Adenoma

NCT00754494
View directory record Official record
Conditions
Adenomatous Polyp, Recurrent Colon Cancer, Recurrent Rectal Cancer, Stage I Colon Cancer, Stage I Rectal Cancer, Stage IIA Colon Cancer, Stage IIA Rectal Cancer, Stage IIB Colon Cancer, Stage IIB Rectal Cancer, Stage IIC Colon Cancer, Stage IIC Rectal Cancer, Stage IIIA Colon Cancer, Stage IIIA Rectal Cancer, Stage IIIB Colon Cancer, Stage IIIB Rectal Cancer, Stage IIIC Colon Cancer, Stage IIIC Rectal Cancer
Interventions
erlotinib hydrochloride, placebo, laboratory biomarker analysis
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2013
U.S. locations
3
States / cities
Long Beach, California • Orange, California • Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jan 5, 2015 · Synced Jul 22, 2026, 4:23 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

CHOICE: Communicating Health Options Through Information and Cancer Education

NCT00134589
View directory record Official record
Conditions
Colorectal Neoplasms
Interventions
Academic Detailing (Medical Practices)+Decision Aids (Patients)
Behavioral
Lead sponsor
Centers for Disease Control and Prevention
Federal
Eligibility
52 Years to 75 Years
Enrollment
450 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2009
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Aug 3, 2009 · Synced Jul 22, 2026, 4:23 AM EDT
Completed Phase 1 Interventional Results available

Perfusion Assessment in Laparoscopic Left Anterior Resection

NCT01560377
View directory record Official record
Conditions
Rectal Cancer, Colon Cancer, Crohn's Disease, Polyp, Procidentia, Diverticulitis
Interventions
PINPOINT Endoscopic Fluorescence Imaging System
Device
Lead sponsor
Novadaq Technologies ULC, now a part of Stryker
Industry
Eligibility
18 Years and older
Enrollment
147 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
11
States / cities
Los Angeles, California • Orange, California • San Diego, California + 7 more
Source: ClinicalTrials.gov public record
Updated Dec 10, 2018 · Synced Jul 22, 2026, 4:23 AM EDT
Terminated Not applicable Interventional

Vitamin D Supplement in Preventing Colon Cancer in African Americans With Colon Polyps

NCT00870961
View directory record Official record
Conditions
Colorectal Cancer, Precancerous Condition
Interventions
cholecalciferol, placebo
Dietary Supplement · Other
Lead sponsor
Northwestern University
Other
Eligibility
50 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
2
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 15, 2013 · Synced Jul 22, 2026, 4:23 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

CB-17-08 Augmented Endoscopy System for Mucosal Lesion Detection During Colonoscopy for Colon Rectal Cancer.

NCT03954548
View directory record Official record
Conditions
Colorectal Cancer
Interventions
CB-17-08 CADe
Device
Lead sponsor
Cosmo Artificial Intelligence-AI Ltd
Industry
Eligibility
45 Years and older
Enrollment
249 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
7
States / cities
Scottsdale, Arizona • Danville, California • Jacksonville, Florida + 4 more
Source: ClinicalTrials.gov public record
Updated May 11, 2021 · Synced Jul 22, 2026, 4:23 AM EDT
Completed Phase 2 Interventional Results available

Molecular Targeting of 15-Lipoxygenase-1 (15-LOX-1) for Apoptosis Induction in Human Colorectal Cancers

NCT00503035
View directory record Official record
Conditions
Familial Adenomatous Polyposis
Interventions
Celecoxib, Colonoscopy Biopsy
Drug · Procedure
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
16 Years and older
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2021
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 12, 2023 · Synced Jul 22, 2026, 4:23 AM EDT
Completed No phase listed Observational

Study of Biomarkers in Blood & Tissue Samples From Patients With Colorectal Cancer or Polyps & Patients Without Polyps

NCT00898378
View directory record Official record
Conditions
Colorectal Cancer, Healthy, no Evidence of Disease, Precancerous Condition
Interventions
gene expression analysis, polymerase chain reaction, polymorphism analysis, protein expression analysis, proteomic profiling, gas chromatography, laboratory biomarker analysis, liquid chromatography, mass spectrometry, questionnaire administration
Genetic · Other
Lead sponsor
Indiana University
Other
Eligibility
18 Years and older
Enrollment
551 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Sep 17, 2014 · Synced Jul 22, 2026, 4:23 AM EDT
Terminated Phase 3 Interventional

Celecoxib in Preventing Polyps in Patients Who Have Undergone Surgery for Stage I Colon Cancer

NCT00087256
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Celecoxib, placebo
Drug · Other
Lead sponsor
NSABP Foundation Inc
Network
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 6, 2013 · Synced Jul 22, 2026, 4:23 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 6, 2024 · Synced Jul 22, 2026, 4:23 AM EDT
Completed No phase listed Observational

Fludeoxyglucose F 18 PET Imaging in Determining Protein and Gene Expression Signatures in Patients With Premalignant Polyps or Colon Cancer

NCT00550628
View directory record Official record
Conditions
Colorectal Cancer, Neoplasm of Uncertain Malignant Potential
Interventions
DNA methylation analysis, fluorescence in situ hybridization, gene expression analysis, polymerase chain reaction, protein expression analysis, reverse transcriptase-polymerase chain reaction, diagnostic laboratory biomarker analysis, immunoenzyme technique, immunohistochemistry staining method, biopsy, therapeutic conventional surgery, fludeoxyglucose F 18
Genetic · Other · Procedure + 1 more
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
15 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 22, 2015 · Synced Jul 22, 2026, 4:23 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Predicting Adenomatous Polyps in the Colon Using Images of a Human Tongue

NCT06305364
View directory record Official record
Conditions
Colorectal Neoplasms, Gastrointestinal Microbiome
Interventions
Gixam
Device
Lead sponsor
Jubaan Ltd.
Industry
Eligibility
18 Years to 75 Years
Enrollment
426 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
3
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 19, 2025 · Synced Jul 22, 2026, 4:23 AM EDT
Completed Not applicable Interventional

Random Comparison of LigaSure and Disposable Staples for Laparoscopic Surgery

NCT00487409
View directory record Official record
Conditions
Colonic Diseases, Rectal Diseases
Interventions
Bipolar electrosurgical generator and instruments, Disposable stapling instruments
Procedure
Lead sponsor
University Hospitals Cleveland Medical Center
Other
Eligibility
18 Years to 80 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 14, 2014 · Synced Jul 22, 2026, 4:23 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Study of Flat Polyp Detection Using New Narrow Band Imaging (NBI) Compared to White Light Colonoscopy - The FIND FLAT Colonoscopy Study

NCT01310699
View directory record Official record
Conditions
Colorectal Neoplasms, Colonic Polyps, Colorectal Cancer
Interventions
Olympus Colonoscope CFHQ190AL
Device
Lead sponsor
VA Palo Alto Health Care System
Federal
Eligibility
18 Years and older
Enrollment
281 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
3
States / cities
Palo Alto, California • San Francisco, California • Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Dec 5, 2017 · Synced Jul 22, 2026, 4:23 AM EDT
Completed Phase 2 Interventional Results available

Macrogol 3350-based Oral Osmotic Laxative in Preventing Cancer in Patients at Risk of Colorectal Cancer

NCT00828984
View directory record Official record
Conditions
Adenomatous Polyp, Colorectal Carcinoma
Interventions
macrogol 3350-based oral osmotic laxative, Placebo, Laboratory Biomarker Analysis
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
87 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
3
States / cities
Chicago, Illinois • Evanston, Illinois • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 17, 2017 · Synced Jul 22, 2026, 4:23 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

AI-EMERGE: Development and Validation of a Multi-analyte, Blood-based Colorectal Cancer Screening Test

NCT03688906
View directory record Official record
Conditions
Colo-rectal Cancer, Cancer Colon, Cancer, Rectum, Neoplasms,Colorectal, Polyps, Polyp of Colon, Adenoma, Adenoma Colon
Interventions
Not listed
Lead sponsor
Freenome Holdings Inc.
Industry
Eligibility
18 Years and older
Enrollment
3,275 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
29
States / cities
Huntsville, Alabama • Chandler, Arizona • Tucson, Arizona + 25 more
Source: ClinicalTrials.gov public record
Updated Mar 1, 2022 · Synced Jul 22, 2026, 4:23 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 May 31, 2018 · Synced Jul 22, 2026, 4:23 AM EDT
Recruiting Not applicable Interventional

Colonoscopy vs Stool Testing for Older Adults With Colon Polyps

NCT05612347
View directory record Official record
Conditions
Colorectal Polyp, Colorectal Neoplasms, Colorectal Adenoma, Colorectal Cancer, Digestive System Disease
Interventions
FIT, Colonoscopy
Diagnostic Test
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
65 Years to 82 Years
Enrollment
8,946 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2035
U.S. locations
18
States / cities
Birmingham, Alabama • Tucson, Arizona • San Diego, California + 15 more
Source: ClinicalTrials.gov public record
Updated Jul 13, 2026 · Synced Jul 22, 2026, 4:23 AM EDT