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ClinicalTrials.gov public records Last synced Oct 25, 2026, 12:36 PM EDT

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Showing 1–24 of 52 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: sigmoidoscopy Clear all
Completed Not applicable Interventional

Trial of a Computer-Based Presentation of Quantitative Information About Colorectal Cancer Screening

NCT01415479
View directory record Official record
Conditions
Colonic Neoplasms
Interventions
Control, Quantitative, Default
Behavioral
Lead sponsor
Indiana University
Other
Eligibility
50 Years to 75 Years
Enrollment
212 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Apr 30, 2013 · Synced Oct 25, 2026, 12:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Evaluating Strategies to Present Colon Cancer Screening Information

NCT02485561
View directory record Official record
Conditions
Colonic Neoplasms, Colorectal Neoplasms, Colonic Diseases, Gastrointestinal Neoplasms
Interventions
Health communication intervention, Education information
Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
50 Years to 75 Years
Enrollment
486 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Nov 15, 2018 · Synced Oct 25, 2026, 12:36 PM EDT
Not listed Phase 3 Interventional Accepts healthy volunteers

Increasing Colorectal Cancer Screening in African Americans

NCT00893295
View directory record Official record
Conditions
Colorectal Cancer
Interventions
informational intervention, medical chart review, screening questionnaire administration, study of socioeconomic and demographic variables, barium enema injection, colon imaging study, screening colonoscopy, sigmoidoscopy
Other · Procedure
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Thomas Jefferson University
Other
Eligibility
50 Years to 79 Years
Enrollment
896 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2008
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 18, 2013 · Synced Oct 25, 2026, 12:36 PM 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, Endoscopic Procedure, 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 – 2029
U.S. locations
5
States / cities
Ann Arbor, Michigan • St Louis, Missouri • Cleveland, Ohio + 2 more
Source: ClinicalTrials.gov public record
Updated Oct 15, 2026 · Synced Oct 25, 2026, 12:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Investigation of Cecal Intubation Rates and Pain Levels Between Water Exchange and Air Insufflation Flexible Sigmoidoscopy

NCT03209349
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Water Exchange Sigmoidoscopy, Air Insufflation Sigmoidoscopy
Procedure
Lead sponsor
Kelowna Gastroenterology Associates
Other
Eligibility
50 Years to 74 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2022
U.S. locations
1
States / cities
North Hills, California
Source: ClinicalTrials.gov public record
Updated Nov 7, 2022 · Synced Oct 25, 2026, 12:36 PM EDT
Active, not recruiting Not applicable Interventional

Microbiome and Rectal Cancer

NCT04223102
View directory record Official record
Conditions
Rectal Cancer, Locally Advanced Malignant Neoplasm
Interventions
Tissue collection
Procedure
Lead sponsor
University of South Florida
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
3
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Aug 2, 2023 · Synced Oct 25, 2026, 12:36 PM EDT
Completed Not applicable Interventional Results available

Evaluation of the Gastrointestinal Manifestation of Fabry's Disease

NCT02798458
View directory record Official record
Conditions
Fabry's Disease
Interventions
Smartpill, Endoscopic Mucosal Resection
Device · Procedure
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 70 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 27, 2023 · Synced Oct 25, 2026, 12:36 PM EDT
Recruiting Phase 2 Interventional

Study of Novel Therapeutics for Acute Remedy of Colitis

NCT06420492
View directory record Official record
Conditions
Ulcerative Colitis, Ulcerative Colitis Chronic Moderate, Ulcerative Colitis Chronic Severe
Interventions
BRS201
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 75 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Chestnut Hill, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 20, 2025 · Synced Oct 25, 2026, 12:36 PM EDT
Active, not recruiting Not applicable Interventional Results available

ASPirin Intervention for the REDuction of Colorectal Cancer Risk

NCT02394769
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Aspirin, Placebo for Aspirin
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 80 Years
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2029
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 4, 2025 · Synced Oct 25, 2026, 12:36 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Defining the Role of the Gut Microbiome in Mediating the Effects of Obesity on Intestinal Stem Cells

NCT02863029
View directory record Official record
Conditions
Obesity
Interventions
Flexible Sigmoidoscopy
Procedure
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
4 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 18, 2022 · Synced Oct 25, 2026, 12:36 PM EDT
Recruiting Phase 2 Interventional

FOLFOX, Botensilimab, and Balstilimab for the Treatment of Localized Rectal Cancer Before Surgery

NCT06780787
View directory record Official record
Conditions
Rectal Adenocarcinoma, Stage IIA Rectal Cancer AJCC v8, Stage III Rectal Cancer AJCC v8
Interventions
Balstilimab, Biospecimen Collection, Botensilimab, Capecitabine, Computed Tomography, Digital Rectal Examination, Endoscopic Biopsy, Fluorouracil, Leucovorin Calcium, Magnetic Resonance Imaging, Oxaliplatin, Radiation Therapy, Sigmoidoscopy
Biological · Procedure · Drug + 1 more
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Duarte, California
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Oct 25, 2026, 12:36 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Study of Using Computerized Education to Increase Patients' Confidence in Their Ability to Be Screened for Colon Cancer

NCT00273585
View directory record Official record
Conditions
Colorectal Cancer Screening
Interventions
Personally-tailored educational software program
Device
Lead sponsor
University of California, Davis
Other
Eligibility
50 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Sep 8, 2006 · Synced Oct 25, 2026, 12:36 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Epidemiology and Pathophysiology of Post-Infectious Functional GI Disorders

NCT03266068
View directory record Official record
Conditions
Campylobacter Infections, Irritable Bowel Syndrome
Interventions
DNA Analysis of Blood Sample, Flexible sigmoidoscopy with colonic biopsies, Small bowel and colonic gastrointestinal permeability, Stool sample analysis
Genetic · Procedure · Diagnostic Test
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 80 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 20, 2022 · Synced Oct 25, 2026, 12:36 PM EDT
Recruiting Not applicable Interventional

Testing the Effects of Exercise on Colorectal Cancer Development After Treatment With Pelvic Radiation Therapy for Prostate Cancer

NCT07790718
View directory record Official record
Conditions
Colon Polyp, Colorectal Carcinoma, Localized Prostate Carcinoma, Stage I Prostate Cancer AJCC v8, Stage II Prostate Cancer AJCC v8, Stage III Prostate Cancer AJCC v8
Interventions
Aerobic Exercise, Biopsy Procedure, Biospecimen Collection, Colonoscopy, Data Collection, Physical Performance Testing, Questionnaire Administration, Sigmoidoscopy, Survey Administration
Other · Procedure
Lead sponsor
City of Hope Medical Center
Other
Eligibility
40 Years to 80 Years · Male only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
2
States / cities
Duarte, California • Irvine, California
Source: ClinicalTrials.gov public record
Updated Aug 28, 2026 · Synced Oct 25, 2026, 12:36 PM 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 27, 2016 · Synced Oct 25, 2026, 12:36 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Relationship of Tenofovir With HIV-1 Suppression in ex Vivo Tissue in Adolescents

NCT02134431
View directory record Official record
Conditions
Human Immunodeficiency Virus
Interventions
flexible sigmoidoscopy or colonoscopy with biopsies
Device
Lead sponsor
University of California, Los Angeles
Other
Eligibility
10 Years to 21 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 13, 2017 · Synced Oct 25, 2026, 12:36 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Detection of Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) Activity in Rectal Tissues From Human Subjects

NCT01078740
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Not listed
Lead sponsor
CF Therapeutics Development Network Coordinating Center
Network
Eligibility
18 Years to 75 Years
Enrollment
57 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
3
States / cities
Birmingham, Alabama • Iowa City, Iowa • Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 7, 2013 · Synced Oct 25, 2026, 12:36 PM EDT
Completed Phase 1 Interventional

Body Compartment Pharmacokinetics of Anti- Retroviral Agents That May be Used for Future HIV Post- Exposure Prophylaxis.

NCT03472963
View directory record Official record
Conditions
HIV Infections
Interventions
Single dose of Genvoya® and a single 800 mg dose of Darunavir®
Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years to 49 Years · Male only
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Aug 28, 2020 · Synced Oct 25, 2026, 12:36 PM EDT
Completed Phase 2 Interventional Results available

Examining the Efficacy of Fecal Microbiota Transplantation (FMT) and Dietary Fiber in Patients With Ulcerative Colitis

NCT03998488
View directory record Official record
Conditions
Ulcerative Colitis, Inflammatory Bowel Diseases
Interventions
Fecal Microbiota Transplantation, Psyllium Husk Powder
Drug · Dietary Supplement
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 89 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 3, 2025 · Synced Oct 25, 2026, 12:36 PM EDT
Recruiting No phase listed Observational

Collecting Blood and Stool Samples to Detect Colorectal Cancer or Advanced Neoplasia in Lynch Syndrome Patients

NCT05410977
View directory record Official record
Conditions
Colorectal Carcinoma, Lynch Syndrome
Interventions
Biospecimen Collection, Electronic Health Record Review
Procedure · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
950 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
9
States / cities
Scottsdale, Arizona • San Francisco, California • Aurora, Colorado + 5 more
Source: ClinicalTrials.gov public record
Updated Aug 18, 2026 · Synced Oct 25, 2026, 12:36 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Biomarkers for Intestinal Permeability in Patients With Constipation

NCT02246647
View directory record Official record
Conditions
Intestinal Diseases, Irritable Bowel Syndrome, Constipation
Interventions
Permeability measurement, Esophagogastroduodenoscopy, Flexible sigmoidoscopy
Diagnostic Test · Procedure
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 21, 2019 · Synced Oct 25, 2026, 12:36 PM EDT
Active, not recruiting Phase 3 Interventional

Nivolumab After Combined Modality Therapy in Treating Patients With High Risk Stage II-IIIB Anal Cancer

NCT03233711
View directory record Official record
Conditions
Anal Basaloid Carcinoma, Anal Canal Cloacogenic Carcinoma, Anal Margin Squamous Cell Carcinoma, Stage IIB Anal Cancer AJCC v8, Stage III Anal Cancer AJCC v8
Interventions
Biopsy Procedure, Biospecimen Collection, Colonoscopy, Computed Tomography, Digital Rectal Examination, High Resolution Anoscopy, Magnetic Resonance Imaging, Nivolumab, Patient Observation, Proctoscopy, Sigmoidoscopy, X-Ray Imaging
Procedure · Biological · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
344 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2027
U.S. locations
887
States / cities
Birmingham, Alabama • Anchorage, Alaska • Fairbanks, Alaska + 568 more
Source: ClinicalTrials.gov public record
Updated Oct 23, 2026 · Synced Oct 25, 2026, 12:36 PM EDT
Withdrawn Phase 2 Interventional

Hydroxocobalamin Approach for Reducing of Calprotectin With Butyrate for Ulcerative Colitis Remission

NCT04259060
View directory record Official record
Conditions
Ulcerative Colitis
Interventions
Hydroxocobalamin with Butyrate, Placebo with Butyrate
Drug
Lead sponsor
Joshua Korzenik
Other
Eligibility
18 Years to 75 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Chestnut Hill, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 22, 2024 · Synced Oct 25, 2026, 12:36 PM EDT
Terminated No phase listed Observational

Mechanisms of Idelalisib-Associated Diarrhea in Patients With Relapsed Chronic Lymphocytic Leukemia, Indolent Non-hodgkin Lymphoma, or Small Lymphocytic Lymphoma

NCT02928510
View directory record Official record
Conditions
Absence of Signs or Symptoms, B-Cell Non-Hodgkin Lymphoma, Digestive System Signs and Symptoms, Indolent Adult Non-Hodgkin Lymphoma, Recurrent B-Cell Non-Hodgkin Lymphoma, Recurrent Chronic Lymphocytic Leukemia, Recurrent Indolent Adult Non-Hodgkin Lymphoma, Recurrent Small Lymphocytic Lymphoma
Interventions
Biospecimen Collection, Colonoscopy, Colposcopic Biopsy, Idelalisib, Laboratory Biomarker Analysis, Pharmacological Study, Physical Examination, Sigmoidoscopy
Procedure · Drug · Other
Lead sponsor
Jonsson Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 14, 2021 · Synced Oct 25, 2026, 12:36 PM EDT