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ClinicalTrials.gov public records Last synced Sep 14, 2026, 1:46 AM EDT

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Showing 1–24 of 85 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Polyp, Adenomatous Clear all
Completed No phase listed Observational Accepts healthy volunteers

Prevalence and Topography of Adenomas in 40-49 Year Old Patients With a Family History of Colon Cancer

NCT02289053
View directory record Official record
Conditions
Colorectal Cancer, Colon Polyps, Adenomatous Polyp of Colon
Interventions
Not listed
Lead sponsor
University of Michigan
Other
Eligibility
40 Years to 49 Years
Enrollment
1,623 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2014
U.S. locations
6
States / cities
Bethesda, Maryland • Ann Arbor, Michigan • Detroit, Michigan + 2 more
Source: ClinicalTrials.gov public record
Updated May 14, 2017 · Synced Sep 14, 2026, 1:46 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 14, 2026, 1:46 AM EDT
Terminated Phase 3 Interventional

Chemoprevention of Colorectal Adenomas

NCT00486512
View directory record Official record
Conditions
Adenomatous Polyps
Interventions
0.5 mg calcitriol (1a -25-dihydroxycholecalciferol), 75 mg acetylsalicylic acid (ASA) + 1250 mg calcium carbonate (CaCO3), placebo to 0.5 mg calcitriol (1a -25-dihydroxycholecalciferol), placebo to 75 mg acetylsalicylic acid (ASA) + 1250 mg calcium carbonate (CaCO3), Colonoscopy
Drug · Procedure
Lead sponsor
Colotech A/S
Industry
Eligibility
40 Years to 75 Years
Enrollment
350 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
24
States / cities
Huntsville, Alabama • San Diego, California • Clearwater, Florida + 20 more
Source: ClinicalTrials.gov public record
Updated Sep 2, 2020 · Synced Sep 14, 2026, 1:46 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 8, 2012 · Synced Sep 14, 2026, 1:46 AM EDT
Recruiting Phase 1 Interventional

Testing for Safety and Colorectal Cancer Preventive Effects of ONC201

NCT05630794
View directory record Official record
Conditions
Colorectal Adenomatous Polyp, Colorectal Carcinoma, Familial Adenomatous Polyposis, Multiple Adenomatous Polyps
Interventions
Biopsy Procedure, Biospecimen Collection, Colonoscopy, Dordaviprone Hydrochloride, Questionnaire Administration, Sigmoidoscopy
Procedure · Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
5
States / cities
Ann Arbor, Michigan • St Louis, Missouri • Cleveland, Ohio + 2 more
Source: ClinicalTrials.gov public record
Updated Sep 10, 2026 · Synced Sep 14, 2026, 1:46 AM EDT
Terminated No phase listed Observational

Review of Post-Study Clinical Endoscopy Reports in Follow Up to MAY2016-07-01

NCT04674228
View directory record Official record
Conditions
Familial Adenomatous Polyposis
Interventions
Electronic Health Record Review
Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
Not listed
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
2
States / cities
Rochester, Minnesota • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 10, 2026 · Synced Sep 14, 2026, 1:46 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 14, 2026, 1:46 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 14, 2026, 1:46 AM EDT
Completed Phase 1 Interventional

A Study of Guselkumab in Participants With Familial Adenomatous Polyposis

NCT03649971
View directory record Official record
Conditions
Adenomatous Polyposis Coli
Interventions
Guselkumab, Placebo
Drug
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
18 Years and older
Enrollment
77 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
18
States / cities
Phoenix, Arizona • Duarte, California • New Haven, Connecticut + 13 more
Source: ClinicalTrials.gov public record
Updated Feb 2, 2025 · Synced Sep 14, 2026, 1:46 AM EDT
Terminated No phase listed Observational

Ileal Pouch-Anal Anastomosis Registry

NCT01026480
View directory record Official record
Conditions
Ileal Pouch-Anal Anastomosis
Interventions
Not listed
Lead sponsor
Boston Medical Center
Other
Eligibility
Not listed
Enrollment
936 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2017
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 16, 2017 · Synced Sep 14, 2026, 1:46 AM EDT
Terminated Not applicable Interventional

Step Down Colon Cancer Risk

NCT01476631
View directory record Official record
Conditions
Adenomatous Polyps
Interventions
Walking
Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
50 Years to 80 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 4, 2013 · Synced Sep 14, 2026, 1:46 AM EDT
Terminated No phase listed Observational

Non-Invasive Prediction of Colorectal Neoplasia

NCT01815463
View directory record Official record
Conditions
Colonic Polyps, Polyposis Coli, Colorectal Cancer
Interventions
Not listed
Lead sponsor
Corporal Michael J. Crescenz VA Medical Center
Federal
Eligibility
18 Years to 85 Years
Enrollment
2,282 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2014
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 26, 2016 · Synced Sep 14, 2026, 1:46 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 14, 2026, 1:46 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 14, 2026, 1:46 AM EDT
Recruiting Phase 1Phase 2 Interventional

Evaluate REC-4881 in Participants With Familial Adenomatous Polyposis (FAP)

NCT05552755
View directory record Official record
Conditions
Familial Adenomatous Polyposis
Interventions
REC-4881, Placebo
Drug
Lead sponsor
Recursion Pharmaceuticals Inc.
Industry
Eligibility
18 Years and older
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
17
States / cities
Scottsdale, Arizona • Tucson, Arizona • San Diego, California + 14 more
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Sep 14, 2026, 1:46 AM EDT
Completed No phase listed Observational

Visualization of the Papilla Through Use of the NuView Device in Patients With FAP

NCT05657145
View directory record Official record
Conditions
Familial Adenomatous Polyposis
Interventions
Not listed
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 70 Years
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 20, 2026 · Synced Sep 14, 2026, 1:46 AM EDT
Terminated Not applicable Interventional Results available

Bioabsorbable Staple Line Reinforcement in Colorectal,Coloanal and Ileoanal Anastomoses

NCT00663819
View directory record Official record
Conditions
Rectal Cancer, Ulcerative Colitis, Familial Adenomatous Polyposis, Diverticulitis
Interventions
GORE SEAMGUARD® Bioabsorbable Staple Line Reinforcement, Staple line without reinforcement
Device · Procedure
Lead sponsor
W.L.Gore & Associates
Industry
Eligibility
18 Years and older
Enrollment
258 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
16
States / cities
Mobile, Alabama • Los Angeles, California • Weston, Florida + 12 more
Source: ClinicalTrials.gov public record
Updated Apr 16, 2018 · Synced Sep 14, 2026, 1:46 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 4, 2019 · Synced Sep 14, 2026, 1:46 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 14, 2026, 1:46 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 14, 2026, 1:46 AM EDT
Recruiting Not applicable Interventional

Five or Ten Year Colonoscopy for 1-2 Non-Advanced Adenomatous Polyps

NCT05080673
View directory record Official record
Conditions
Adenocarcinoma of the Colon, Adenocarcinoma of the Rectum
Interventions
5-year and 10 Year Surveillance Colonoscopy after Qualifying Colonoscopy
Procedure
Lead sponsor
NRG Oncology
Other
Eligibility
45 Years to 70 Years
Enrollment
9,500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2065
U.S. locations
478
States / cities
Fairbanks, Alaska • Goodyear, Arizona • Kingman, Arizona + 323 more
Source: ClinicalTrials.gov public record
Updated Sep 1, 2026 · Synced Sep 14, 2026, 1:46 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Practice-Based Learning to Predict Polyp Histology at Colonoscopy

NCT01638091
View directory record Official record
Conditions
Colonic Polyps, Adenomatous Polyps
Interventions
Ex vivo module, In vivo practice-base learning phase
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
Not listed
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2011
U.S. locations
2
States / cities
Stanford, California • Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 10, 2012 · Synced Sep 14, 2026, 1:46 AM EDT
Completed Not applicable Interventional

Multimedia Intervention in Patients With Familial Adenomatous Polyposis (FAP)

NCT00525655
View directory record Official record
Conditions
Familial Adenomatous Polyposis, Colorectal Cancer
Interventions
Web-Based Multimedia Intervention, Questionnaire
Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
13 Years to 24 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2021
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 22, 2021 · Synced Sep 14, 2026, 1:46 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 14, 2026, 1:46 AM EDT