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Showing 1–24 of 39 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: H Pylori Infection Clear all
Completed Early Phase 1 Interventional Accepts healthy volunteers

Assessment and Management of Chronic Dyspepsia in Eastern Uganda

NCT04525664
View directory record Official record
Conditions
Helicobacter Pylori Infection, Dyspepsia
Interventions
Clarithromycin 500mg, Amoxicillin 1000 MG, Omeprazole 40 MG, Omeprazole 20 MG Oral Tablet
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
376 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 24, 2020 · Synced Jul 22, 2026, 4:46 AM EDT
Completed Phase 2 Interventional Results available

ARJ C13 Urea Breath Test System

NCT04036838
View directory record Official record
Conditions
H. Pylori Infection
Interventions
PyloPlus UBT System, Histology, Rapid Urease Test, H.pylori Culture
Combination Product · Diagnostic Test
Lead sponsor
ARJ Medical, Inc.
Industry
Eligibility
18 Years and older
Enrollment
415 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
6
States / cities
Clearwater, Florida • Clermont, Florida • Largo, Florida + 2 more
Source: ClinicalTrials.gov public record
Updated Oct 22, 2019 · Synced Jul 22, 2026, 4:46 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Standard Triple Therapy vs Sequential Therapy in Treatment of H Pylori Infection

NCT01723059
View directory record Official record
Conditions
Helicobacter Infection
Interventions
Standard Triple Therapy, Sequential Therapy
Drug
Lead sponsor
Dallas VA Medical Center
Federal
Eligibility
18 Years to 85 Years
Enrollment
184 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Nov 6, 2012 · Synced Jul 22, 2026, 4:46 AM EDT
Completed Phase 4 Interventional Results available

POCone-UBiT-IR300 Pediatric Comparison Study

NCT01623154
View directory record Official record
Conditions
Bacterial Infection Due to Helicobacter Pylori (H. Pylori)
Interventions
Pranactin citric solution
Other
Lead sponsor
Otsuka America Pharmaceutical
Industry
Eligibility
3 Years to 18 Years
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
3
States / cities
Miami, Florida • El Paso, Texas • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 22, 2015 · Synced Jul 22, 2026, 4:46 AM 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 29, 2021 · Synced Jul 22, 2026, 4:46 AM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety of Vonoprazan Compared to Lansoprazole in Participants With Helicobacter Pylori Infection

NCT04167670
View directory record Official record
Conditions
Helicobacter Pylori Infection
Interventions
Vonoprazan, Amoxicillin, Clarithromycin, Lansoprazole
Drug
Lead sponsor
Phathom Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
1,046 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
106
States / cities
Anniston, Alabama • Athens, Alabama • Birmingham, Alabama + 84 more
Source: ClinicalTrials.gov public record
Updated Apr 4, 2022 · Synced Jul 22, 2026, 4:46 AM EDT
Completed Phase 4 Interventional Results available

High Dose Dual Therapy vs Clarithromycin Triple Therapy for Treatment Naive H Pylori Infection in an Urban Population

NCT05342532
View directory record Official record
Conditions
Helicobacter Pylori Infection
Interventions
Amoxicillin, Omeprazole, Clarithromycin
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
112 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 31, 2023 · Synced Jul 22, 2026, 4:46 AM EDT
Recruiting Phase 3 Interventional Accepts healthy volunteers

PyloPlus Urea Breath Test System Post Therapy Efficacy Confirmation Study

NCT05681689
View directory record Official record
Conditions
Helicobacter Pylori Infection, Post-Treatment, Efficacy
Interventions
PyloPlus UBT System, Histology, Rapid Urease Test, Comparator Breath Test, Stool Antigen Test
Combination Product · Diagnostic Test
Lead sponsor
ARJ Medical, Inc.
Industry
Eligibility
18 Years and older
Enrollment
77 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
2
States / cities
Doral, Florida • Union City, New Jersey
Source: ClinicalTrials.gov public record
Updated May 5, 2023 · Synced Jul 22, 2026, 4:46 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Epidemiology of H. Pylori Transmission

NCT02740140
View directory record Official record
Conditions
Communicable Diseases
Interventions
Not listed
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 55 Years
Enrollment
1,750 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2013
U.S. locations
2
States / cities
San Jose, California • Stanford, California
Source: ClinicalTrials.gov public record
Updated Apr 14, 2016 · Synced Jul 22, 2026, 4:46 AM EDT
Completed Phase 3 Interventional Results available

ERADICATE Hp2 - Treating Helicobacter Pylori With RHB-105 Compared to Active Comparator

NCT03198507
View directory record Official record
Conditions
Helicobacter Pylori Infection, Dyspepsia
Interventions
RHB-105, Active Comparator
Drug
Lead sponsor
RedHill Biopharma Limited
Industry
Eligibility
18 Years to 70 Years
Enrollment
455 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
55
States / cities
Dothan, Alabama • Phoenix, Arizona • Tucson, Arizona + 46 more
Source: ClinicalTrials.gov public record
Updated Mar 15, 2020 · Synced Jul 22, 2026, 4:46 AM EDT
Completed Phase 3 Interventional Results available

Urea Breath Test (UBT) With Breath Hp System /BreathID Hp Lab System Pediatrics

NCT02905825
View directory record Official record
Conditions
Helicobacter Pylori Infection
Interventions
BreathID® Hp System, BreathID® Hp Lab System, Stool Test
Device · Drug · Diagnostic Test
Lead sponsor
Meridian Bioscience, Inc.
Industry
Eligibility
3 Years to 18 Years
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
5
States / cities
Shreveport, Louisiana • Flowood, Mississippi • Nashville, Tennessee + 2 more
Source: ClinicalTrials.gov public record
Updated Dec 19, 2022 · Synced Jul 22, 2026, 4:46 AM EDT
Completed Not applicable Interventional Results available

Patient-Centered Cancer Prevention In Chinese Americans

NCT03340454
View directory record Official record
Conditions
H. Pylori Infection
Interventions
Test-and-treat EHR-CHW intervention, Usual care of EHR-only intervention
Other
Lead sponsor
NYU Langone Health
Other
Eligibility
21 Years and older
Enrollment
135 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 2, 2024 · Synced Jul 22, 2026, 4:46 AM EDT
Completed No phase listed Observational

Risk Factors for Gastric Disease in Pediatric Helicobacter Pylori (H. Pylori)

NCT00212225
View directory record Official record
Conditions
Helicobacter Infections, Gastritis, Peptic Ulcer
Interventions
Not listed
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
6 Months to 18 Years
Enrollment
755 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997 – 2007
U.S. locations
3
States / cities
Miami, Florida • Atlanta, Georgia • Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 12, 2010 · Synced Jul 22, 2026, 4:46 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Breath Ammonia Method for H. Pylori Detection: Phase II

NCT00194688
View directory record Official record
Conditions
Helicobacter Infections
Interventions
H. pylori treatment
Drug
Lead sponsor
University of Washington
Other
Eligibility
21 Years and older
Enrollment
278 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2005
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jan 10, 2008 · Synced Jul 22, 2026, 4:46 AM EDT
Withdrawn Phase 4 Interventional Accepts healthy volunteers

Helicobacter Pylori and Body Iron in Adults

NCT03146325
View directory record Official record
Conditions
Helicobacter Pylori Infection
Interventions
BISMUTH TETRACYCLINE METRONIDAZOLE OMEPRAZOLE, MATCHING PLACEBO
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 64 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2016
U.S. locations
1
States / cities
El Paso, Texas
Source: ClinicalTrials.gov public record
Updated May 8, 2017 · Synced Jul 22, 2026, 4:46 AM EDT
Completed No phase listed Observational

Helicobacter Pylori and Dry Eye

NCT00083291
View directory record Official record
Conditions
Helicobacter Infections
Interventions
Not listed
Lead sponsor
National Eye Institute (NEI)
NIH
Eligibility
Not listed
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Jul 22, 2026, 4:46 AM EDT
Not listed Phase 4 Interventional Accepts healthy volunteers

H. Pylori Eradication Using Pyklear in Adults in El Paso, Texas: a Pilot Study

NCT01335334
View directory record Official record
Conditions
H. Pylori Infection
Interventions
bismuth subcitrate potassium, metronidazole,tetracycline hydrochloride and omeprazole
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
El Paso, Texas
Source: ClinicalTrials.gov public record
Updated Apr 13, 2011 · Synced Jul 22, 2026, 4:46 AM EDT
Completed No phase listed Observational

H. Pylori Testing for Patients With Non-specific Upper Abdominal Pain in the Emergency Department

NCT01376414
View directory record Official record
Conditions
Gastritis, Peptic Ulcer, Peptic Ulcer Perforation, Stomach Ulcer
Interventions
Urea Breath Test (UBT) for H. pylori infection
Other
Lead sponsor
George Washington University
Other
Eligibility
18 Years and older
Enrollment
212 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
2
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Aug 25, 2016 · Synced Jul 22, 2026, 4:46 AM EDT
Recruiting No phase listed Observational

The GAstric Precancerous Conditions Study

NCT04191551
View directory record Official record
Conditions
Gastric Cancer, Intestinal Metaplasia of Gastric Mucosa, Helicobacter Pylori Infection, Atrophic Gastritis
Interventions
Not listed
Lead sponsor
Stanford University
Other
Eligibility
35 Years to 84 Years
Enrollment
600 participants
Timeline
2018 – 2028
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Dec 15, 2025 · Synced Jul 22, 2026, 4:46 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Helicobacter Pylori Eradication Trial to Reduce Iron Deficiency in Children

NCT00364104
View directory record Official record
Conditions
Iron Deficiency
Interventions
Quadruple sequential Helicobacter pylori eradication + iron sulfate, Quadruple sequential Helicobacter pylori eradication therapy, Ferrous sulfate, Placebo
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
36 Months to 120 Months
Enrollment
125 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
El Paso, Texas
Source: ClinicalTrials.gov public record
Updated Jun 29, 2009 · Synced Jul 22, 2026, 4:46 AM EDT
Completed Phase 3 Interventional Results available

Exalenz Lab Mode System Compared to Biopsy for H.Pylori Detection

NCT02528721
View directory record Official record
Conditions
Helicobacter Pylori Infection
Interventions
Dual Mode BreathID Hp System
Device
Lead sponsor
Meridian Bioscience, Inc.
Industry
Eligibility
18 Years and older
Enrollment
282 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
11
States / cities
Tucson, Arizona • Ventura, California • Lafayette, Colorado + 8 more
Source: ClinicalTrials.gov public record
Updated Dec 19, 2022 · Synced Jul 22, 2026, 4:46 AM EDT
Completed Phase 3 Interventional

Bag Mode BreathID Hp Validation Versus Endoscopy in Detection of Helicobacter Pylori

NCT02010112
View directory record Official record
Conditions
Helicobacter Pylori Infection
Interventions
Breath Test Collection bags
Other
Lead sponsor
Meridian Bioscience, Inc.
Industry
Eligibility
18 Years and older
Enrollment
193 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
9
States / cities
Baltimore, Maryland • Chevy Chase, Maryland • Detroit, Michigan + 6 more
Source: ClinicalTrials.gov public record
Updated Dec 19, 2022 · Synced Jul 22, 2026, 4:46 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study to Evaluate Vonoprazan Concentrations in Breast Milk of Healthy Lactating Women Receiving Vonoprazan 20 mg Once Daily or Vonoprazan 20 mg Twice Daily

NCT06391177
View directory record Official record
Conditions
Erosive Esophagitis, Heartburn, Symptomatic Nonerosive Gasroesophageal Reflux Disease, Helicobacter Pylori Infection
Interventions
Vonoprazan
Drug
Lead sponsor
Phathom Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Mar 24, 2025 · Synced Jul 22, 2026, 4:46 AM EDT
Active, not recruiting Phase 4 Interventional Accepts healthy volunteers

Helicobacter Pylori Screening and Treatment in the At-risk South Florida Community- AIM 1

NCT07224035
View directory record Official record
Conditions
H Pylori Infection, H Pylori Gastritis, Gastric Cancer
Interventions
PYTEST® 14C-Urea Breath Test, VOQUEZNA® Triple Pak®
Drug
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Feb 16, 2026 · Synced Jul 22, 2026, 4:46 AM EDT