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ClinicalTrials.gov public records Last synced Oct 21, 2026, 5:32 PM EDT

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Showing 25–48 of 126 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Duodenal Diseases Clear all
Not listed Not applicable Interventional

Cryoablation for Benign Gastrointestinal Anastomotic Strictures

NCT04372784
View directory record Official record
Conditions
Esophageal Stricture, Duodenal Stricture, Jejunal Stricture, Anastomotic Stricture of Small Intestine
Interventions
Cryotherapy, Esophagogastroduodenoscopy with Balloon Dilatation
Device · Procedure
Lead sponsor
University of Southern California
Other
Eligibility
18 Years and older
Enrollment
124 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 5, 2020 · Synced Oct 21, 2026, 5:32 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Clinical Evaluation of the Effect of Duodenal-Jejunal Bypass on Type 2 Diabetes

NCT00694278
View directory record Official record
Conditions
Type II Diabetes
Interventions
Not listed
Lead sponsor
Ferzli, George S., M.D. F.A.C.S.
Individual
Eligibility
20 Years to 65 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2008
U.S. locations
1
States / cities
Brooklyn, New York
Source: ClinicalTrials.gov public record
Updated Jun 10, 2008 · Synced Oct 21, 2026, 5:32 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Duodenal Feeds in Very Low Birth Weight Infants

NCT04246333
View directory record Official record
Conditions
BPD - Bronchopulmonary Dysplasia, VLBW - Very Low Birth Weight Infant, Feeding Disorder Neonatal, Feeding; Difficult, Newborn, Premature Birth, Chronic Lung Disease of Prematurity
Interventions
Mode of Delivery of Feeds
Other
Lead sponsor
Johns Hopkins All Children's Hospital
Other
Eligibility
0 Days to 12 Months
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2026
U.S. locations
1
States / cities
St. Petersburg, Florida
Source: ClinicalTrials.gov public record
Updated Mar 18, 2026 · Synced Oct 21, 2026, 5:32 PM EDT
Completed Phase 1 Interventional

Gemcitabine Hydrochloride, Oxaliplatin, and Erlotinib Hydrochloride in Treating Patients With Advanced Biliary Tract Cancer, Pancreatic Cancer, Duodenal Cancer, or Ampullary Cancer

NCT00987766
View directory record Official record
Conditions
Extrahepatic Bile Duct Cancer, Gallbladder Cancer, Liver Cancer, Pancreatic Cancer, Periampullary Adenocarcinoma, Small Intestine Cancer
Interventions
erlotinib hydrochloride, gemcitabine hydrochloride, oxaliplatin, laboratory biomarker analysis
Drug · Other
Lead sponsor
Vanderbilt-Ingram Cancer Center
Other
Eligibility
18 Years and older
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2016
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Oct 21, 2026, 5:32 PM EDT
Completed Phase 2 Interventional

Interferon and Octreotide to Treat Zollinger-Ellison Syndrome and Advanced Non-B Islet Cell Cancer

NCT00001228
View directory record Official record
Conditions
Islet Cell Adenoma, Zollinger Ellison Syndrome
Interventions
Interferon
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1988 – 2007
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Oct 21, 2026, 5:32 PM EDT
Completed Phase 2 Interventional

The Use of Oral Omeprazole and Intravenous Pantoprazole in Patients With Hypersecretion of Gastric Acid

NCT00001191
View directory record Official record
Conditions
Gastrinoma, Zollinger Ellison Syndrome
Interventions
Pantoprazole, Omeprazole
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
1983 – 2007
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Oct 21, 2026, 5:32 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Changes in Intestinal Permeability 4 Hours After Gluten Challenge

NCT03288831
View directory record Official record
Conditions
Celiac Disease, Wheat Hypersensitivity, Gluten Sensitivity, Gluten Enteropathy, Immune System and Related Disorders, Duodenal Diseases
Interventions
Gluten, Placebo
Dietary Supplement
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 70 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 7, 2019 · Synced Oct 21, 2026, 5:32 PM EDT
Completed No phase listed Observational

Treatment of Zollinger-Ellison Syndrome

NCT00001241
View directory record Official record
Conditions
Zollinger Ellison Syndrome
Interventions
Not listed
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
1989 – 2007
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Oct 21, 2026, 5:32 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Trial to Assess the Effects of an Antimicrobial Mouthwash on the Esophageal Microbiome

NCT02513784
View directory record Official record
Conditions
Esophageal Adenocarcinoma, Barrett's Esophagus, Reflux Esophagitis
Interventions
Chlorhexidine gluconate
Drug
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 22, 2022 · Synced Oct 21, 2026, 5:32 PM EDT
Not listed No phase listed Observational

Interventional Endoscopy Database for Pancreatico-biliary, Gastrointestinal and Esophageal Disorders

NCT01438385
View directory record Official record
Conditions
Ampullary Cancer, Duodenal Cancer, Bile Duct Cancer, Bile Duct Disorders, Gallstones, Obstructive Jaundice, Pancreatic Disorders (Noncancerous), Colorectal Cancer, Esophageal Cancer, Barrett's Esophagus, Gastric Malignancies, Pancreatic Cancer, Pediatric Gastroenterology, Cholangiocarcinoma, Pancreatic Pseudocysts, Acute and Chronic Pancreatitis, Recurrent Pancreatitis, Cholangitis, Bile Leak, Biliary Strictures, Pancreatic Divisum, Biliary and Pancreatic Stones, Choledocholithiasis
Interventions
Interventional Endoscopy
Procedure
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
12,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 20, 2017 · Synced Oct 21, 2026, 5:32 PM EDT
Completed Phase 3 Interventional Results available

A 12-month, Phase 3, Open-label, Multi-center Study to Evaluate the Long-term Safety of PN400 (VIMOVO)

NCT00527904
View directory record Official record
Conditions
Gastric Ulcer
Interventions
PN400 (VIMOVO), PN 400 (VIMOVO)
Drug
Lead sponsor
POZEN
Industry
Eligibility
18 Years and older
Enrollment
239 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 31, 2010 · Synced Oct 21, 2026, 5:32 PM EDT
Completed Phase 2Phase 3 Interventional

Rates of Gastric Ulcer by Endoscopy in Knee Osteoarthritis Patients Receiving LT-NS001 Versus Naprosyn®

NCT01063920
View directory record Official record
Conditions
Osteoarthritis
Interventions
LT-NS001, Naprosyn®
Drug
Lead sponsor
Logical Therapeutics
Industry
Eligibility
45 Years to 80 Years
Enrollment
534 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
65
States / cities
Birmingham, Alabama • Huntsville, Alabama • Chandler, Arizona + 51 more
Source: ClinicalTrials.gov public record
Updated Jan 24, 2011 · Synced Oct 21, 2026, 5:32 PM EDT
Completed Phase 3 Interventional Results available

Study to Evaluate the Long-Term Safety of PA32540 in Subjects Who Are at Risk for Developing Aspirin-Associated Gastric Ulcers

NCT00995410
View directory record Official record
Conditions
Aspirin-Associated Gastric Ulcers
Interventions
PA32540
Drug
Lead sponsor
POZEN
Industry
Eligibility
55 Years and older
Enrollment
380 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 17, 2016 · Synced Oct 21, 2026, 5:32 PM EDT
Not listed Not applicable Interventional

Comparing the Efficacy of Endoscopic FNA vs FNB in Diagnosing Solid Gastrointestinal Lesions

NCT01698190
View directory record Official record
Conditions
Pancreatic Tumor, Gastric Tumor, Esophageal Tumor, Lymphadenopathy, Duodenal Tumor
Interventions
Endoscopic ultrasound guided needle tissue acquisition.
Procedure
Lead sponsor
Stony Brook University
Other
Eligibility
18 Years and older
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Stony Brook, New York
Source: ClinicalTrials.gov public record
Updated Nov 19, 2014 · Synced Oct 21, 2026, 5:32 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Feasibility Study of Phototherapy System to Treat H Pylori

NCT00306280
View directory record Official record
Conditions
Helicobacter Pylori
Interventions
Phototherapy
Device
Lead sponsor
LumeRx
Industry
Eligibility
18 Years to 90 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
3
States / cities
Boston, Massachusetts • Worcester, Massachusetts • Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 20, 2006 · Synced Oct 21, 2026, 5:32 PM EDT
Recruiting Not applicable Interventional

Randomized Trial of UI-EWD vs. Conventional Endoscopic Therapy for Nonvariceal Upper Gastrointestinal Bleeding

NCT06188585
View directory record Official record
Conditions
Acute Gastrointestinal Bleeding
Interventions
UI-EWD, Conventional therapy
Device
Lead sponsor
Medtronic - MITG
Industry
Eligibility
22 Years and older
Enrollment
278 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
6
States / cities
New Haven, Connecticut • Chicago, Illinois • Boston, Massachusetts + 3 more
Source: ClinicalTrials.gov public record
Updated Jun 22, 2026 · Synced Oct 21, 2026, 5:32 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Evaluation of the Safety and Efficacy of Revita® DMR on Body Weight Maintenance in Subjects With Obesity Who Have Achieved at Least 15% Weight Loss on Tirzepatide

NCT06484114
View directory record Official record
Conditions
Obesity, Weight Change Trajectory, Weight Change, Body
Interventions
Revita Duodenal Mucosal Resurfacing (DMR), Sham
Device
Lead sponsor
Fractyl Health Inc.
Industry
Eligibility
21 Years to 70 Years
Enrollment
315 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
32
States / cities
Phoenix, Arizona • Scottsdale, Arizona • Newport Beach, California + 24 more
Source: ClinicalTrials.gov public record
Updated Mar 3, 2026 · Synced Oct 21, 2026, 5:32 PM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

Imaging the Duodenum Using an Optical Frequency Domain Imaging OFDI Capsule

NCT02202681
View directory record Official record
Conditions
Celiac Disease, Healthy
Interventions
OFDI Capsule
Device
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
16 Years and older
Enrollment
108 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2028
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 22, 2025 · Synced Oct 21, 2026, 5:32 PM EDT
Completed Not applicable Interventional Results available

Safety and Feasibility of Novel Therapy for Duodenal Mucosal Regeneration for Type II Diabetes

NCT05014204
View directory record Official record
Conditions
Diabetes, Diabetes Type 2, Diabetes Mellitus, Type 2, Glucose Metabolism Disorders, Metabolic Disease, Endocrine System Diseases, Diabetes Mellitus
Interventions
The Endogenex Device
Device
Lead sponsor
Endogenex, Inc.
Industry
Eligibility
22 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
3
States / cities
Los Angeles, California • Crosby, Minnesota • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 22, 2025 · Synced Oct 21, 2026, 5:32 PM EDT
Completed No phase listed Observational

Helicobacter Pylori Sample Collection Protocol Pre Therapy Subjects

NCT03060746
View directory record Official record
Conditions
Helicobacter Pylori Infection, Gastric Ulcer, Nausea, Abdominal Pain, Weight Loss, Stomach Ulcer, Loss of Appetite, Bloating
Interventions
Newly Diagnosed
Other
Lead sponsor
DiaSorin Inc.
Industry
Eligibility
22 Years and older
Enrollment
277 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
11
States / cities
Mesa, Arizona • Mission Hills, California • Oxnard, California + 8 more
Source: ClinicalTrials.gov public record
Updated Dec 30, 2021 · Synced Oct 21, 2026, 5:32 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Endoscopic Resection of Large Colorectal Polyps: An Observational Cohort Study

NCT04220905
View directory record Official record
Conditions
Colonic Polyp, Colonoscopy, Complication, Recurrence, Duodenal Polyp
Interventions
Not listed
Lead sponsor
White River Junction Veterans Affairs Medical Center
Federal
Eligibility
18 Years and older
Enrollment
1,500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2025
U.S. locations
1
States / cities
White River Junction, Vermont
Source: ClinicalTrials.gov public record
Updated Jul 5, 2024 · Synced Oct 21, 2026, 5:32 PM EDT
Recruiting Phase 4 Interventional

OPEN Versus InTact Capsule Proton Pump Inhibitors for the Treatment of Marginal Ulcers

NCT05799105
View directory record Official record
Conditions
Marginal Ulcer
Interventions
Omeprazole 40 milligrams
Drug
Lead sponsor
Stephen Firkins
Other
Eligibility
Not listed
Enrollment
122 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 19, 2026 · Synced Oct 21, 2026, 5:32 PM EDT
Completed Not applicable Interventional

The Role of HIF-2a in the Pathogenesis of Reflux Esophagitis

NCT01733810
View directory record Official record
Conditions
Esophagitis, Reflux Esophagitis, Gastroesophageal Reflux Disease
Interventions
Cessation of Acid Suppressing Medications
Other
Lead sponsor
Dallas VA Medical Center
Federal
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2019
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Feb 5, 2020 · Synced Oct 21, 2026, 5:32 PM EDT
Completed Phase 3 Interventional

Study to Evaluate the Incidence of Gastric Ulcers Following Administration of Either PN 200 or Naproxen in Subjects Who Are at Risk for Developing NSAID-Associated Ulcers.

NCT00367211
View directory record Official record
Conditions
Osteoarthritis, Rheumatoid Arthritis, Ankylosing Spondylitis
Interventions
PN 200 tablets (500 mg naproxen and 20 mg omeprazole), Naproxen 500 mg tablets (PN 200 minus omeprazole)
Drug
Lead sponsor
POZEN
Industry
Eligibility
18 Years and older
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
1
States / cities
Pompano Beach, Florida
Source: ClinicalTrials.gov public record
Updated Apr 22, 2008 · Synced Oct 21, 2026, 5:32 PM EDT