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Showing 1–24 of 50 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Helicobacter Pylori Clear all
Recruiting Phase 3 Interventional Accepts healthy volunteers

PyloPlus Urea Breath Test System Pediatric Safety and Efficacy Study

NCT05276557
View directory record Official record
Conditions
Helicobacter Pylori, Safety, Efficacy
Interventions
PyloPlus Urea Breath Test System, Stool Antigen Test
Combination Product · Diagnostic Test
Lead sponsor
ARJ Medical, Inc.
Industry
Eligibility
3 Years to 17 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
3
States / cities
Doral, Florida • Orlando, Florida • El Paso, Texas
Source: ClinicalTrials.gov public record
Updated May 5, 2023 · Synced Jun 26, 2026, 5:27 AM EDT
Recruiting Phase 1 Interventional

A Vaccine (MV-s-NAP) for the Treatment of Patients With Invasive Metastatic Breast Cancer

NCT04521764
View directory record Official record
Conditions
Anatomic Stage IV Breast Cancer AJCC v8, Invasive Breast Carcinoma, Metastatic Breast Adenocarcinoma, Recurrent Breast Carcinoma, Stage IV Breast Cancer AJCC v6 and v7
Interventions
Oncolytic Measles Virus Encoding Helicobacter pylori Neutrophil-activating Protein, Computed Tomography, Magnetic Resonance Imaging, Biopsy, Biospecimen Collection
Biological · Procedure
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 16, 2026 · Synced Jun 26, 2026, 5:27 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 Jun 26, 2026, 5:27 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Clinical Experiment of Helicobacter Pylori Transmission

NCT00550368
View directory record Official record
Conditions
Infection, Achlorhydria
Interventions
Biological intervention: Enteropathogenic E. coli
Biological
Lead sponsor
Stanford University
Other
Eligibility
35 Years to 59 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2009
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Dec 5, 2016 · Synced Jun 26, 2026, 5:27 AM EDT
Terminated Phase 3 Interventional Results available

Treating H. Pylori in Parkinson's Patients With Motor Fluctuations

NCT00664209
View directory record Official record
Conditions
Parkinson's Disease, Helicobacter Infections, Motor Fluctuations
Interventions
clartihromycin, amoxicillin, and omeprazole, placebo
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
Male only
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Dec 1, 2017 · Synced Jun 26, 2026, 5:27 AM EDT
Recruiting Not applicable Interventional

Study of the Esophageal String Test (EST) for the Diagnosis of Helicobacter Pylori

NCT06871579
View directory record Official record
Conditions
Helicobacter Pylori
Interventions
EnteroTracker(R) EST
Diagnostic Test
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 99 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 24, 2026 · Synced Jun 26, 2026, 5:27 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 Jun 26, 2026, 5:27 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 Jun 26, 2026, 5:27 AM EDT
Recruiting No phase listed Observational

A Study of the Safety of Vonoprazan Exposure in Pregnant Women and Their Offspring

NCT06660342
View directory record Official record
Conditions
Erosive Esophagitis, Heartburn, Symptomatic Non-erosive Gastroesophageal Reflux Disease, Helicobacter Pylori Infection
Interventions
Vonoprazan
Drug
Lead sponsor
Phathom Pharmaceuticals, Inc.
Industry
Eligibility
15 Years to 50 Years · Female only
Enrollment
728 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2034
U.S. locations
1
States / cities
Wilmington, North Carolina
Source: ClinicalTrials.gov public record
Updated May 21, 2025 · Synced Jun 26, 2026, 5:27 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 Jun 26, 2026, 5:27 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 Jun 26, 2026, 5:27 AM EDT
Completed No phase listed Observational

Specimen Collection Study for H. Pylori Testing

NCT02970110
View directory record Official record
Conditions
Helicobacter Infections
Interventions
Not listed
Lead sponsor
Biomerica
Industry
Eligibility
21 Years to 75 Years
Enrollment
98 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
4
States / cities
Tucson, Arizona • Los Angeles, California • Medley, Florida + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 17, 2022 · Synced Jun 26, 2026, 5:27 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 Jun 26, 2026, 5:27 AM EDT
Not yet recruiting Phase 3 Interventional

Personalized vs Standard of Care Treatment for Helicobacter Pylori Eradication Among Veterans

NCT07104318
View directory record Official record
Conditions
Helicobacter Pylori
Interventions
Bismuth quadruple therapy with optimized PPI, Bismuth quadruple therapy with standard PPI, Clarithromycin triple therapy with optimized PPI, Clarithromycin triple therapy with standard PPI, Standard bismuth quadruple therapy
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
360 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Apr 6, 2026 · Synced Jun 26, 2026, 5:27 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 Jun 26, 2026, 5:27 AM EDT
Completed No phase listed Observational

Helicobacter Pylori Sample Collection Protocol Post Therapy Subjects

NCT03060733
View directory record Official record
Conditions
Helicobacter Pylori Infection, Gastric Ulcer, Nausea, Abdominal Pain, Weight Loss, Stomach Ulcer, Loss of Appetite, Bloating
Interventions
Post-Therapy
Other
Lead sponsor
DiaSorin Inc.
Industry
Eligibility
22 Years and older
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
4
States / cities
Mission Hills, California • Great Neck, New York • Mentor, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Feb 6, 2019 · Synced Jun 26, 2026, 5:27 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 Jun 26, 2026, 5:27 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers

The Effect of H. Pylori Infection on Iron Metabolism

NCT00202488
View directory record Official record
Conditions
Iron Deficiency Anemia, Helicobacter Pylori Infection
Interventions
H. pylori treatment
Drug
Lead sponsor
Seattle Institute for Biomedical and Clinical Research
Other
Eligibility
18 Years and older
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2007
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jul 29, 2008 · Synced Jun 26, 2026, 5:27 AM EDT
Withdrawn No phase listed Observational

An Investigation of the Association Between Helicobacter Pylori Infection and Abdominal Pain in Cystic Fibrosis Patients

NCT00765401
View directory record Official record
Conditions
Cystic Fibrosis, Abdominal Pain, Helicobacter Pylori Infection
Interventions
Not listed
Lead sponsor
Penn State University
Other
Eligibility
5 Years to 18 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 23, 2017 · Synced Jun 26, 2026, 5:27 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 Jun 26, 2026, 5:27 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 Jun 26, 2026, 5:27 AM EDT
Completed No phase listed Observational

Role of Helicobacter Pylori and Its Toxins in Lung and Digestive System Diseases

NCT00366509
View directory record Official record
Conditions
Pulmonary Disease, Oropharyngeal Disease, Lymphangioleiomyomatosis, Pulmonary Fibrosis, Asthma, Sarcoidosis
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years to 99 Years
Enrollment
157 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2016
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 1, 2021 · Synced Jun 26, 2026, 5:27 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 Jun 26, 2026, 5:27 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

300 Antibody Diagnostic Test Kit

NCT01646411
View directory record Official record
Conditions
Acute Bacterial Infections, Acute Viral Infections
Interventions
Not listed
Lead sponsor
The Plasma Source
Industry
Eligibility
18 Years to 70 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Southampton, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 19, 2012 · Synced Jun 26, 2026, 5:27 AM EDT