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ClinicalTrials.gov public records Last synced Sep 17, 2026, 6:02 PM EDT

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Showing 1–19 of 19 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Sigmoidoscopy with biopsy Clear all
Recruiting Phase 2 Interventional

Study of Healthy Donor FMT (hdFMT) and Pembrolizumab in Relapsed/Refractory (R/R) PD-L1 Positive NSCLC

NCT05669846
View directory record Official record
Conditions
Non Small Cell Lung Cancer
Interventions
Healthy Donor Fecal Microbiota Transplant (hdFMT), Pembrolizumab
Drug
Lead sponsor
Diwakar Davar
Other
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2036
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 22, 2026 · Synced Sep 17, 2026, 6:02 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 27, 2020 · Synced Sep 17, 2026, 6:02 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 27, 2026 · Synced Sep 17, 2026, 6:02 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 28, 2026 · Synced Sep 17, 2026, 6:02 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Impact of Circadian Misalignment on Colonic Barrier Homeostasis in Ulcerative Colitis

NCT05180279
View directory record Official record
Conditions
Ulcerative Colitis
Interventions
7-day sleep lab
Behavioral
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years to 50 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 18, 2025 · Synced Sep 17, 2026, 6:02 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 19, 2022 · Synced Sep 17, 2026, 6:02 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 20, 2019 · Synced Sep 17, 2026, 6:02 PM EDT
Completed Not applicable Interventional

Plant Exosomes +/- Curcumin to Abrogate Symptoms of Inflammatory Bowel Disease

NCT04879810
View directory record Official record
Conditions
Irritable Bowel Disease
Interventions
Sigmoidoscopy and biopsy, blood work
Procedure
Lead sponsor
University of Louisville
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Nov 2, 2022 · Synced Sep 17, 2026, 6:02 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Correlates and Consequences of Increased Immune Activation in Injection Drug Users

NCT01831284
View directory record Official record
Conditions
Intravenous Drug Usage
Interventions
Sigmoidoscopy with biopsy
Procedure
Lead sponsor
Rockefeller University
Other
Eligibility
18 Years to 55 Years
Enrollment
201 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 5, 2014 · Synced Sep 17, 2026, 6:02 PM EDT
Terminated Phase 2 Interventional Results available

Cetuximab, 5-FU and Radiation as Neoadjuvant Therapy for Patients With Locally Advanced Rectal Cancer

NCT00611858
View directory record Official record
Conditions
Rectal Cancer
Interventions
Cetuximab, 5-Fluorouracil, Radiation
Drug · Radiation
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2016
U.S. locations
4
States / cities
Boston, Massachusetts • Weymouth, Massachusetts • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 7, 2019 · Synced Sep 17, 2026, 6:02 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 1, 2023 · Synced Sep 17, 2026, 6:02 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 13, 2021 · Synced Sep 17, 2026, 6:02 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 12, 2017 · Synced Sep 17, 2026, 6:02 PM EDT
Recruiting No phase listed Observational

Detecting HPV DNA in Anal and Cervical Cancers

NCT04857528
View directory record Official record
Conditions
Cervical Cancer, Anal Cancer, HPV-Related Anal Squamous Cell Carcinoma, HPV-Related Cervical Carcinoma, HPV-Related Carcinoma, Uterine Cervical Cancer
Interventions
Radiation Treatment With or Without Chemotherapy, Blood Sample Collection, HPV Genotyping (HPV DNA Test), Testing Archival Tumor Tissue, Physical Exam, Positron Emission Tomography Scan (PET Scan)/ Computed Tomography Scan (CT Scan)
Radiation · Other · Diagnostic Test
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
2
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 3, 2026 · Synced Sep 17, 2026, 6:02 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 6, 2013 · Synced Sep 17, 2026, 6:02 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 Sep 9, 2026 · Synced Sep 17, 2026, 6:02 PM EDT
Active, not recruiting No phase listed Observational

The Colonic Microbiome and Mucosal Immunity in Inflammatory Bowel Disease and Ankylosing Spondylitis

NCT02389075
View directory record Official record
Conditions
Inflammatory Bowel Diseases (IBD), Ankylosing Spondylitis (AS)
Interventions
Pinch biopsies, Flexible sigmoidoscopy
Procedure
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 70 Years
Enrollment
129 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2026
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated May 20, 2024 · Synced Sep 17, 2026, 6:02 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Microbiome-Mediated Gut Dysfunction in Non-Alcoholic Fatty Liver Disease

NCT05209100
View directory record Official record
Conditions
Non-Alcoholic Fatty Liver Disease
Interventions
Sigmoidoscopy
Procedure
Lead sponsor
AdventHealth Translational Research Institute
Other
Eligibility
35 Years to 65 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Apr 2, 2026 · Synced Sep 17, 2026, 6:02 PM EDT
Active, not recruiting Phase 2Phase 3 Interventional

Testing the Addition of an Anti-Cancer Drug, Irinotecan, to the Standard Chemotherapy Treatment (FOLFOX) After Long-Course Radiation Therapy for Advanced-Stage Rectal Cancers to Improve the Rate of Complete Response and Long-Term Rates of Organ Preservation and Continuing Response

NCT05610163
View directory record Official record
Conditions
Stage II Rectal Cancer AJCC v8, Stage III Rectal Cancer AJCC v8, Locally Advanced Rectal Adenocarcinoma
Interventions
Capecitabine, 5-fluorouracil, Leucovorin calcium, Irinotecan, Oxaliplatin, Long Course Chemoradiotherapy, Computed Tomography, Magnetic Resonance Imaging, Sigmoidoscopy, biopsy
Drug · Radiation · Procedure
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
18 Years and older
Enrollment
760 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2033
U.S. locations
679
States / cities
Birmingham, Alabama • Mobile, Alabama • Anchorage, Alaska + 483 more
Source: ClinicalTrials.gov public record
Updated Sep 1, 2026 · Synced Sep 17, 2026, 6:02 PM EDT