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ClinicalTrials.gov public records Last synced Oct 17, 2026, 6:04 PM EDT

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Showing 1–24 of 287 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Endoscopy biopsy Clear all
Completed No phase listed Observational

Characterization of the Neo-squamous Epithelial Barrier

NCT03077594
View directory record Official record
Conditions
Barrett's Esophagus With Dysplasia
Interventions
Mucosal Impedance, Research Biopsies, Volumetric Laser Endomicroscopy
Device · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 90 Years
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2022
U.S. locations
2
States / cities
Rochester, Minnesota • New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 18, 2023 · Synced Oct 17, 2026, 6:04 PM EDT
Completed Not applicable Interventional

Endoscopic Ultrasound vs Percutaneous Route for Liver Biopsy

NCT04003766
View directory record Official record
Conditions
Liver Biopsy
Interventions
biopsy
Diagnostic Test
Lead sponsor
AdventHealth
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Feb 24, 2022 · Synced Oct 17, 2026, 6:04 PM EDT
Recruiting Phase 2 Interventional

Obeticholic Acid for Prevention in Barrett's Esophagus

NCT04939051
View directory record Official record
Conditions
Barrett Esophagus, Esophageal Adenocarcinoma
Interventions
Biospecimen Collection, Esophageal Biopsy, Esophagogastroduodenoscopy, Liver Ultrasonographic Elastography, Obeticholic Acid, Placebo Administration, Questionnaire Administration
Procedure · Biological · Drug + 1 more
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
8
States / cities
Kansas City, Kansas • Ann Arbor, Michigan • St Louis, Missouri + 2 more
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Oct 17, 2026, 6:04 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 17, 2026, 6:04 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Early Diagnosis of Pancreatic Cancer Duodenal Fluid-Based Biomarker Exploratory Study

NCT07030348
View directory record Official record
Conditions
Pancreatic Cancers, Pancreatic Diseases
Interventions
Not listed
Lead sponsor
Do Hyun Park
Other
Eligibility
19 Years and older
Enrollment
263 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
2
States / cities
Aurora, Colorado • Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 22, 2025 · Synced Oct 17, 2026, 6:04 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Small Bowel Microbiota Characterization in Healthy Individuals Before and After Consumption of a Western Diet

NCT03266536
View directory record Official record
Conditions
Small Intestine Bacteria
Interventions
Western diet
Behavioral
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 4, 2022 · Synced Oct 17, 2026, 6:04 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

The Healthy Endoscopy Study

NCT04369963
View directory record Official record
Conditions
Inflammatory Bowel Diseases, Functional Gastrointestinal Disorders
Interventions
Esophagogastroduodenoscopy and Colonoscopy with Biopsies
Procedure
Lead sponsor
Seattle Children's Hospital
Other
Eligibility
18 Years to 25 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Apr 17, 2024 · Synced Oct 17, 2026, 6:04 PM EDT
Completed Not applicable Interventional Results available

Comparison of 19g FNA and 19g FNB Needles for EUS-LB

NCT03408171
View directory record Official record
Conditions
Abnormal Liver Function
Interventions
19-gauge FNA needle, 19-gauge FNB needle
Device
Lead sponsor
Geisinger Clinic
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Danville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 14, 2020 · Synced Oct 17, 2026, 6:04 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Protocol for High-Risk Assessment, Screening, and Early Detection of Pancreatic Cancer

NCT01662609
View directory record Official record
Conditions
Pancreatic Cancer
Interventions
Endoscopic Ultrasound (EUS)
Procedure
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
30 Years and older
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2022
U.S. locations
2
States / cities
Tampa, Florida • Allentown, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 7, 2022 · Synced Oct 17, 2026, 6:04 PM EDT
Terminated No phase listed Observational

Antiretroviral Localization in Gut-Associated Lymphoid Tissue and Lower Female Genital Tract Tissue of HIV+ Subjects

NCT02641444
View directory record Official record
Conditions
HIV
Interventions
Blood plasma collection, Cervical and Vaginal Biopsy, Colonoscopy with Ileal and Rectal Biopsy
Procedure
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 17, 2018 · Synced Oct 17, 2026, 6:04 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Transoral Endoscopic Liver Biopsy During Laparoscopic Gastric Bypass

NCT00512512
View directory record Official record
Conditions
Steatohepatitis, Morbid Obesity
Interventions
Transoral Endoscopic Liver Biopsy
Procedure
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2010 · Synced Oct 17, 2026, 6:04 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Colonoscopic Removal of Aberrant Crypt Foci: a Prospective, Randomized, Blinded Trial

NCT00623883
View directory record Official record
Conditions
Colorectal Neoplasms
Interventions
Surgical removal of ACF, Colonoscopic evaluation only
Procedure
Lead sponsor
National Naval Medical Center
Federal
Eligibility
18 Years and older
Enrollment
98 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2007
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 26, 2008 · Synced Oct 17, 2026, 6:04 PM EDT
Completed No phase listed Observational

Relationship Between Endoscopic Ultrasound Staging and Degree of Stricture in Esophageal Cancer

NCT02372929
View directory record Official record
Conditions
Esophageal Cancer
Interventions
Endoscopic Ultrasound
Procedure
Lead sponsor
AdventHealth
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Nov 12, 2025 · Synced Oct 17, 2026, 6:04 PM EDT
Active, not recruiting No phase listed Observational

Cell Marker Predictors in Barrett's Esophagus

NCT03316053
View directory record Official record
Conditions
Barrett's Esophagus Without Dysplasia
Interventions
Tissue sample for genetic testing
Other
Lead sponsor
The Guthrie Clinic
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2027
U.S. locations
1
States / cities
Sayre, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 7, 2026 · Synced Oct 17, 2026, 6:04 PM EDT
Completed Not applicable Interventional

Novel Imaging Techniques in Barrett's Esophagus

NCT00576498
View directory record Official record
Conditions
Barrett Esophagus, Gastroesophageal Reflux
Interventions
NBI-AFI imaging, Standard Endoscopy
Other
Lead sponsor
Midwest Biomedical Research
Other
Eligibility
18 Years and older
Enrollment
130 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
2
States / cities
Kansas City, Missouri • Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Oct 29, 2012 · Synced Oct 17, 2026, 6:04 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

The Microbiome, Bile Acids, and Notch in Barrett's Esophagus (BE)

NCT05524844
View directory record Official record
Conditions
Barrett Esophagus, Esophageal Adenocarcinoma
Interventions
Sample Collection, Endoscopy results, Dietary questionnaire
Other
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
2
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 11, 2025 · Synced Oct 17, 2026, 6:04 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Assessing a Endoscopic Mucosal Resection Site Using Different Endoscopic Imaging Methods

NCT02668198
View directory record Official record
Conditions
Post-endoscopic Mucosal Resection of Colon Polyps
Interventions
Olympus CF190 Colonoscope High definition white light, Olympus CF190 Colonoscope White light with near focus, Olympus CF190 Colonoscope Narrow band imaging, Olympus CF190 Colonoscope Narrow band imaging with near focus, Biopsy
Device · Procedure
Lead sponsor
Michael Wallace
Other
Eligibility
18 Years and older
Enrollment
230 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Oct 17, 2019 · Synced Oct 17, 2026, 6:04 PM EDT
Completed No phase listed Observational

Evaluate Mesothelin as a Biomarker for the Clinical Management of Esophageal Adenocarcinoma (EAC)

NCT01393483
View directory record Official record
Conditions
Esophageal Cancer, Adenocarcinoma
Interventions
serum and tissue mesothelin
Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
371 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 28, 2024 · Synced Oct 17, 2026, 6:04 PM EDT
Completed Phase 1 Interventional

Resveratrol in Treating Patients With Colorectal Cancer That Can Be Removed By Surgery

NCT00433576
View directory record Official record
Conditions
Adenocarcinoma of the Colon, Adenocarcinoma of the Rectum, Stage I Colon Cancer, Stage I Rectal Cancer, Stage II Colon Cancer, Stage II Rectal Cancer, Stage III Colon Cancer, Stage III Rectal Cancer
Interventions
resveratrol, pharmacological study, laboratory biomarker analysis
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Sep 15, 2014 · Synced Oct 17, 2026, 6:04 PM EDT
Completed Not applicable Interventional

The Cellularity Yield of Three Different 22-gauge FNA Needles

NCT01916421
View directory record Official record
Conditions
Pancreatic or Peripancreatic Lesions, Lesions in the Esophagus, Stomach, Duodenum or Rectum, Mediastinal ( Chest) Masses, Enlarged Lymph Nodes
Interventions
Endoscopic Ultrasound Fine Needle Aspiration (EUS-FNA)
Procedure
Lead sponsor
Texas Tech University Health Sciences Center, El Paso
Other
Eligibility
18 Years to 88 Years
Enrollment
107 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
El Paso, Texas
Source: ClinicalTrials.gov public record
Updated May 17, 2017 · Synced Oct 17, 2026, 6:04 PM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

CVD 38000: Study of Responses to Vaccination With Typhoid and/or Cholera

NCT03705585
View directory record Official record
Conditions
Typhoid and/or Cholera Vaccination
Interventions
Vivotif Typhoid Oral Vaccine, Vaxchora
Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years and older
Enrollment
240 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2029
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 4, 2026 · Synced Oct 17, 2026, 6:04 PM EDT
Withdrawn Not applicable Interventional

Endoscopic Ultrasound (EUS) Fine Needle Biopsy (FNB) Submucosal Nodule

NCT03011229
View directory record Official record
Conditions
GI Lesions
Interventions
Pro Core Needle, medtronic Sharkcore Needle
Device
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated May 7, 2020 · Synced Oct 17, 2026, 6:04 PM EDT
Completed Phase 3 Interventional Results available

Comparison of Two Needle Aspiration Techniques for Endoscopic Ultrasound-guided Fine Needle Aspiration (EUS-FNA) in Solid Pancreatic Lesions

NCT01936467
View directory record Official record
Conditions
Pancreatic Solid Lesions, Pancreatic Mass
Interventions
Standard technique EUS-FNA, Capillary suction technique for EUS FNA
Device
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 90 Years
Enrollment
121 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
2
States / cities
Baltimore, Maryland • Columbia, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 13, 2017 · Synced Oct 17, 2026, 6:04 PM EDT
Completed No phase listed Observational

Evaluation of the Lungs of Individuals With Lung Disease

NCT00224198
View directory record Official record
Conditions
Lung Disease, Bronchitis, Emphysema, COPD, Asthma
Interventions
Lung Disease
Procedure
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
196 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2012
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 3, 2016 · Synced Oct 17, 2026, 6:04 PM EDT