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Showing 1–24 of 35 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Helicobacter Infection Clear all
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 Sep 6, 2026, 5:32 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 Sep 6, 2026, 5:32 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 Sep 6, 2026, 5:32 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 Sep 6, 2026, 5:32 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 Sep 6, 2026, 5:32 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 Sep 6, 2026, 5:32 AM EDT
Active, not recruiting Phase 4 Interventional

Helicobacter Pylori Screening and Treatment in the At-risk South Florida Community-AIM 2

NCT07224048
View directory record Official record
Conditions
H. Pylori Infection, Gastric Cancer, Gastritis H Pylori
Interventions
PYTEST® 14C-Urea Capsule Breath Test (at Home), PYTEST® 14C-Urea Capsule Breath Test (Standard Retesting In-Person)
Drug
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Feb 16, 2026 · Synced Sep 6, 2026, 5:32 AM EDT
Completed Phase 3 Interventional Results available

ERADICATE Hp - Treating Helicobacter Pylori With RHB-105

NCT01980095
View directory record Official record
Conditions
Dyspepsia, Helicobacter Pylori Infection
Interventions
RHB-105, Placebo
Drug
Lead sponsor
RedHill Biopharma Limited
Industry
Eligibility
18 Years to 65 Years
Enrollment
119 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
12
States / cities
Anaheim, California • Chino, California • Jupiter, Florida + 8 more
Source: ClinicalTrials.gov public record
Updated Sep 23, 2019 · Synced Sep 6, 2026, 5:32 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 Sep 6, 2026, 5:32 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 Sep 6, 2026, 5:32 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 Sep 6, 2026, 5:32 AM EDT
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 Sep 6, 2026, 5:32 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 Sep 6, 2026, 5:32 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 Sep 6, 2026, 5:32 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 Sep 6, 2026, 5:32 AM EDT
Withdrawn Phase 3 Interventional

Safety, Efficacy of Pylera BID Dosing in Eradication of H. Pylori

NCT00712413
View directory record Official record
Conditions
Helicobacter Pylori Infection
Interventions
OBMT
Drug
Lead sponsor
Forest Laboratories
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008
U.S. locations
2
States / cities
Ann Arbor, Michigan • Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Feb 8, 2017 · Synced Sep 6, 2026, 5:32 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 Sep 6, 2026, 5:32 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 Sep 6, 2026, 5:32 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 Sep 6, 2026, 5:32 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 Sep 6, 2026, 5:32 AM EDT
Recruiting Not applicable Interventional

H. Pylori Eradication With Argon Plasma During Endoscopy

NCT06529159
View directory record Official record
Conditions
Helicobacter Pylori Infection, Helicobacter Pylori, Helicobacter Pylori Gastrointestinal Tract Infection, H. Pylori Infection, H. Pylori Gastrointestinal Disease
Interventions
HEAPE, Pre-HEAPE
Procedure
Lead sponsor
Christopher C. Thompson, MD, MSc
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 1, 2026 · Synced Sep 6, 2026, 5:32 AM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Changes Associated With H. Pylori and Gastric Carcinogenesis

NCT02164409
View directory record Official record
Conditions
Bacterial Infection Due to Helicobacter Pylori (H. Pylori)
Interventions
Endoscopy tissue collection
Procedure
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 31, 2026 · Synced Sep 6, 2026, 5:32 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 Sep 6, 2026, 5:32 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 Sep 6, 2026, 5:32 AM EDT