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Showing 1–24 of 73 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Colorectal Adenomatous Polyp Clear all
Completed Phase 2Phase 3 Interventional Results available

Vitamin D/Calcium Polyp Prevention Study

NCT00153816
View directory record Official record
Conditions
Colorectal Cancer, Polyps, Adenomas
Interventions
Calcium Carbonate, Vitamin D3, placebo
Drug
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
45 Years to 75 Years
Enrollment
2,813 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2016
U.S. locations
10
States / cities
Los Angeles, California • Denver, Colorado • Atlanta, Georgia + 7 more
Source: ClinicalTrials.gov public record
Updated Mar 14, 2017 · Synced Sep 23, 2026, 12:14 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 12, 2020 · Synced Sep 23, 2026, 12:14 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers

Evaluation of Computer-assisted, Non-cathartic CT Colonography

NCT01200303
View directory record Official record
Conditions
Colonic Polyps
Interventions
non-cathartic CTC
Procedure
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
50 Years to 80 Years
Enrollment
605 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2011
U.S. locations
3
States / cities
San Francisco, California • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 4, 2015 · Synced Sep 23, 2026, 12:14 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Computer Aided Detection of Polyps During Colonoscopy Procedures

NCT04195646
View directory record Official record
Conditions
Colo-rectal Cancer, Polyp of Colon, Adenomatous Polyps
Interventions
EndoVigilant CAD Software
Device
Lead sponsor
EndoVigilant Inc
Industry
Eligibility
18 Years to 85 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
2
States / cities
Palo Alto, California • Greenbelt, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 1, 2021 · Synced Sep 23, 2026, 12:14 AM EDT
Completed Phase 3 Interventional Results available

Trial of Eflornithine Plus Sulindac in Patients With Familial Adenomatous Polyposis (FAP)

NCT01483144
View directory record Official record
Conditions
Familial Adenomatous Polyposis
Interventions
Eflornithine, Eflornithine Placebo, Sulindac 150 MG, Sulindac placebo
Drug
Lead sponsor
Cancer Prevention Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
171 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2019
U.S. locations
10
States / cities
La Jolla, California • Atlanta, Georgia • Boston, Massachusetts + 7 more
Source: ClinicalTrials.gov public record
Updated Jun 7, 2021 · Synced Sep 23, 2026, 12:14 AM EDT
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 Sep 23, 2026, 12:14 AM EDT
Recruiting Phase 2 Interventional

An Investigational Drug (TPST-1495) in Patients With Familial Adenomatous Polyposis

NCT06557733
View directory record Official record
Conditions
Colorectal Carcinoma, Familial Adenomatous Polyposis
Interventions
Biopsy Procedure, Biospecimen Collection, EP2/EP4 Antagonist TPST-1495, Esophagogastroduodenoscopy, Gastrointestinal Endoscopy, Questionnaire Administration
Procedure · Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
4
States / cities
Phoenix, Arizona • Rochester, Minnesota • Salt Lake City, Utah + 1 more
Source: ClinicalTrials.gov public record
Updated Sep 13, 2026 · Synced Sep 23, 2026, 12:14 AM EDT
Recruiting No phase listed Observational

Gastrointestinal Biomarkers in Tissue and Biological Fluid Samples From Colorectal Cancer Patients

NCT00899626
View directory record Official record
Conditions
Colorectal Cancer, Esophageal Cancer, Gastric Cancer, Pancreatic Cancer, Precancerous Condition
Interventions
Not listed
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
5,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2045
U.S. locations
2
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 4, 2026 · Synced Sep 23, 2026, 12:14 AM EDT
Completed Not applicable Interventional

Ambient Lighting During Colonoscopy and Its Effect on Adenoma Detection Rate and Eye Fatigue

NCT04441242
View directory record Official record
Conditions
Colorectal Cancer Screening, Colon Adenomatous Polyp
Interventions
Ambient lighting, Low lighting
Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older
Enrollment
1,109 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Park Ridge, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 3, 2024 · Synced Sep 23, 2026, 12:14 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 Sep 23, 2026, 12:14 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 Sep 23, 2026, 12:14 AM EDT
Completed Phase 2 Interventional Results available

A Clinical Trial of COX and EGFR Inhibition in Familial Polyposis Patients

NCT01187901
View directory record Official record
Conditions
Adenomatous Polyposis Coli
Interventions
Erlotinib, Sulindac, Placebo A, Placebo B
Drug
Lead sponsor
University of Utah
Other
Eligibility
18 Years to 69 Years
Enrollment
92 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jun 16, 2016 · Synced Sep 23, 2026, 12:14 AM EDT
Completed No phase listed Observational

Calcium/Vitamin D, Biomarkers & Colon Polyp Prevention

NCT00399607
View directory record Official record
Conditions
Colorectal Adenomatous Polyps
Interventions
Rectal biopsy during colonoscopy, Rectal biopsy at randomization, Rectal biopsy at 1 year, Rectal biopsy prior to colonoscopy, Biopsies during colonoscopy
Procedure
Lead sponsor
Emory University
Other
Eligibility
45 Years to 75 Years
Enrollment
264 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2016
U.S. locations
9
States / cities
Los Angeles, California • Denver, Colorado • Atlanta, Georgia + 6 more
Source: ClinicalTrials.gov public record
Updated Dec 7, 2016 · Synced Sep 23, 2026, 12:14 AM EDT
Terminated Phase 3 Interventional Results available

Trial In Pediatric Patients With Familial Adenomatous Polyposis (FAP)

NCT00585312
View directory record Official record
Conditions
Adenomatous Polyposis Coli
Interventions
Celecoxib, Placebo
Drug
Lead sponsor
Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
Industry
Eligibility
10 Years to 17 Years
Enrollment
106 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2013
U.S. locations
23
States / cities
Chicago, Illinois • Ann Arbor, Michigan • Omaha, Nebraska + 16 more
Source: ClinicalTrials.gov public record
Updated Feb 20, 2021 · Synced Sep 23, 2026, 12:14 AM EDT
Completed Phase 2 Interventional Results available

Fish Oil Supplementation, Nutrigenomics and Colorectal Cancer Prevention

NCT01661764
View directory record Official record
Conditions
Colorectal Adenomatous Polyps
Interventions
Eicosapentanoic acid and docosahexanoic acid, Oleic Acid
Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
40 Years to 79 Years
Enrollment
141 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 7, 2018 · Synced Sep 23, 2026, 12:14 AM EDT
Completed Phase 2 Interventional

Calcium and Vitamin D vs Markers of Adenomatous Polyps

NCT00208793
View directory record Official record
Conditions
Colorectal Adenomatous Polyps
Interventions
Calcium and vitamin D3 combined, Placebo, Calcium, Vitamin D3
Dietary Supplement · Drug
Lead sponsor
Emory University
Other
Eligibility
30 Years to 74 Years
Enrollment
92 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2013
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Nov 25, 2013 · Synced Sep 23, 2026, 12:14 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 Sep 23, 2026, 12:14 AM EDT
Terminated Phase 2 Interventional

Testing Obeticholic Acid for Familial Adenomatous Polyposis

NCT05223036
View directory record Official record
Conditions
Attenuated Familial Adenomatous Polyposis, Colorectal Carcinoma, Duodenal Carcinoma, Familial Adenomatous Polyposis
Interventions
Biopsy Procedure, Biospecimen Collection, Gastrointestinal Endoscopy, Obeticholic Acid, Placebo Administration, Questionnaire Administration
Procedure · Biological · Drug + 1 more
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
6
States / cities
Scottsdale, Arizona • Kansas City, Kansas • Boston, Massachusetts + 3 more
Source: ClinicalTrials.gov public record
Updated May 13, 2026 · Synced Sep 23, 2026, 12:14 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Curcumin for the Chemoprevention of Colorectal Cancer

NCT00118989
View directory record Official record
Conditions
Adenomatous Polyps
Interventions
Curcuminoids
Dietary Supplement
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2012
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 19, 2017 · Synced Sep 23, 2026, 12:14 AM EDT
Completed Phase 1 Interventional

A Study of JNJ-64251330 in Participants With Familial Adenomatous Polyposis

NCT05014360
View directory record Official record
Conditions
Adenomatous Polyposis Coli
Interventions
JNJ-64251330
Drug
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
5
States / cities
Duarte, California • Miami, Florida • Boston, Massachusetts + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 1, 2023 · Synced Sep 23, 2026, 12:14 AM EDT
Enrolling by invitation Not applicable Interventional

Investigation of β-hydroxybutyrate Supplementation as Chemoprevention in Familial Adenomatous Polyposis

NCT06578637
View directory record Official record
Conditions
FAP, Familial Adenomatous Polyposis
Interventions
R-1,3-Butanediol (10G-A), R-1,3-Butanediol (20G-A), R-1,3-Butanediol (30G-A), R-1,3-Butanediol (30G-B)
Dietary Supplement
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 15, 2026 · Synced Sep 23, 2026, 12:14 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Evaluation of EverLift in the Performance of Polypectomy for Polyps 4-9mm

NCT04551014
View directory record Official record
Conditions
Colo-rectal Cancer, Polyp of Colon, Adenomatous Polyp of Colon
Interventions
Use of EverLift, Without use of EverLift
Device
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
158 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Aug 31, 2022 · Synced Sep 23, 2026, 12:14 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 6, 2018 · Synced Sep 23, 2026, 12:14 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Study of a Screening Blood Test to Determine Patients' Potential Risk of Adenomatous or Advanced Colon Polyps (ACPs)

NCT01062035
View directory record Official record
Conditions
Colonic Polyp
Interventions
Not listed
Lead sponsor
Mayo Clinic
Other
Eligibility
50 Years to 60 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Jun 25, 2014 · Synced Sep 23, 2026, 12:14 AM EDT