Comparison of Omeprazole vs Vonoprazon in Treatment of H Pylori Infection

NCT ID: NCT07040839

Last Updated: 2025-06-27

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

PHASE4

Total Enrollment

128 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-07-31

Study Completion Date

2026-02-28

Brief Summary

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Current studies have primarily focused on comparing the advantages and disadvantages of P-CAB and PPI drugs, with little comparison between different P-CAB drugs or between regimens with varying drug combinations and treatment durations.

This study aims to evaluate the clinical effectiveness of vonoprazan-based H. pylori eradication therapy and compare it to that of conventional PPI based therapy in clinical practice.

Detailed Description

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Currently, there are numerous H. pylori eradication regimens, but opinions vary regarding the effectiveness of those based on P-CAB or PPI. Zhang et al. 4 concluded that the P-CAB-based triple regimen was superior to the PPI-based regimen, whereas Du et al.5 suggested that a vonoprazan and amoxicillin duo regimen may be the preferred first-line option for H. pylori eradication in clinical practice. However, due to limited evidence, the efficacy of various H. pylori eradication regimens using tegoprazan or vonoprazan could not be compared.

Current studies have primarily focused on comparing the advantages and disadvantages of P-CAB and PPI drugs, with little comparison between different P-CAB drugs or between regimens with varying drug combinations and treatment durations.

This study aims to evaluate the clinical effectiveness of vonoprazan-based H. pylori eradication therapy and compare it to that of conventional PPI based therapy in clinical practice.

Objective: To compare the efficacy of vonoprazan-based H. pylori eradication therapy with conventional proton pump inhibitors based therapy.

Conditions

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H Pylori

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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First-Line Therapy with Omeprazole

Group Type EXPERIMENTAL

Clarithromycin 500 mg

Intervention Type DRUG

Clarithromycin 500 mg orally twice daily for 14 days

Amoxicillin 1 g

Intervention Type DRUG

Omeprazole 40 mg orally twice daily for 14 days, then 40 mg once daily for 4 weeks

Omeprazole 40 mg

Intervention Type DRUG

Omeprazole 40 mg orally twice daily for 14 days, then 40 mg once daily for 4 weeks

First-Line Therapy with Vonoprazan

Group Type EXPERIMENTAL

Clarithromycin 500 mg

Intervention Type DRUG

Clarithromycin 500 mg orally twice daily for 14 days

Amoxicillin 1 g

Intervention Type DRUG

Amoxicillin 1 g orally twice daily for 14 days

Vonoprazan 20 mg

Intervention Type DRUG

Vonoprazan 20 mg orally twice daily for 14 days, then 20 mg once daily for 4 weeks

Second-Line Therapy with Omeprazole

Group Type EXPERIMENTAL

Levofloxacin 500 mg

Intervention Type DRUG

Levofloxacin 500 mg orally once daily for 14 days

Amoxicillin 1 g

Intervention Type DRUG

Amoxicillin 1 g orally twice daily for 14 days

Omeprazole 40 mg

Intervention Type DRUG

Omeprazole 40 mg orally twice daily for 14 days, then 40 mg once daily for 4 weeks

Second-Line Therapy with Vonoprazan

Participants receiving second-line therapy (levofloxacin + amoxicillin) with vonoprazan as the acid suppressant.

Group Type EXPERIMENTAL

Levofloxacin 500 mg

Intervention Type DRUG

Levofloxacin 500 mg orally once daily for 14 days

Amoxicillin 1 g

Intervention Type DRUG

Amoxicillin 1 g orally twice daily for 14 days

Vonoprazan 20 mg

Intervention Type DRUG

Vonoprazan 20 mg orally twice daily for 14 days, then 20 mg once daily for 4 weeks

Interventions

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Clarithromycin 500 mg

Clarithromycin 500 mg orally twice daily for 14 days

Intervention Type DRUG

Amoxicillin 1 g

Omeprazole 40 mg orally twice daily for 14 days, then 40 mg once daily for 4 weeks

Intervention Type DRUG

Omeprazole 40 mg

Omeprazole 40 mg orally twice daily for 14 days, then 40 mg once daily for 4 weeks

Intervention Type DRUG

Clarithromycin 500 mg

Clarithromycin 500 mg orally twice daily for 14 days

Intervention Type DRUG

Amoxicillin 1 g

Amoxicillin 1 g orally twice daily for 14 days

Intervention Type DRUG

Vonoprazan 20 mg

Vonoprazan 20 mg orally twice daily for 14 days, then 20 mg once daily for 4 weeks

Intervention Type DRUG

Levofloxacin 500 mg

Levofloxacin 500 mg orally once daily for 14 days

Intervention Type DRUG

Amoxicillin 1 g

Amoxicillin 1 g orally twice daily for 14 days

Intervention Type DRUG

Omeprazole 40 mg

Omeprazole 40 mg orally twice daily for 14 days, then 40 mg once daily for 4 weeks

Intervention Type DRUG

Levofloxacin 500 mg

Levofloxacin 500 mg orally once daily for 14 days

Intervention Type DRUG

Amoxicillin 1 g

Amoxicillin 1 g orally twice daily for 14 days

Intervention Type DRUG

Vonoprazan 20 mg

Vonoprazan 20 mg orally twice daily for 14 days, then 20 mg once daily for 4 weeks

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* All patients who tested positive on stool antigen

Exclusion Criteria

* patients under 12 years old.
* Patients who have penicillin allergy.
* Patients who have underlying dysrhythmia forbidding the use of macrolide -. Patient who have hypersensitivity to any of these antibiotics or proton pump inhibitors.
Minimum Eligible Age

12 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Rehman Medical Institute - RMI

OTHER

Sponsor Role lead

Responsible Party

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Wajeeha Qayyum

Consultant/Assistant Professor Medicine

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Rehman Medical Institue

Peshawar, K, Pakistan

Site Status

Countries

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Pakistan

Central Contacts

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Taimur khan, FCPS

Role: CONTACT

03305485960 ext. 3638

Naseer Ahmed, Associate professor

Role: CONTACT

09291583000 ext. 4743

References

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Malfertheiner P, Moss SF, Daniele P, Pelletier C, Jacob R, Tremblay G, Hubscher E, Leifke E, Chey WD. Potassium-Competitive Acid Blocker and Proton Pump Inhibitor-Based Regimens for First-Line Helicobacter pylori Eradication: A Network Meta-Analysis. Gastro Hep Adv. 2022 Jun 17;1(5):824-834. doi: 10.1016/j.gastha.2022.06.009. eCollection 2022.

Reference Type BACKGROUND
PMID: 39131848 (View on PubMed)

Du RC, Hu YX, Ouyang Y, Ling LX, Xu JY, Sa R, Liu XS, Hong JB, Zhu Y, Lu NH, Hu Y. Vonoprazan and amoxicillin dual therapy as the first-line treatment of Helicobacter pylori infection: A systematic review and meta-analysis. Helicobacter. 2024 Jan-Feb;29(1):e13039. doi: 10.1111/hel.13039. Epub 2023 Nov 30.

Reference Type BACKGROUND
PMID: 38036941 (View on PubMed)

Zhang M, Pang M, Zhang M. Efficacy and safety of potassium-competitive acid blockers versus proton pump inhibitors as Helicobacter pylori eradication therapy: a meta-analysis of randomized clinical trials. Clinics (Sao Paulo). 2022 Jul 7;77:100058. doi: 10.1016/j.clinsp.2022.100058. eCollection 2022.

Reference Type BACKGROUND
PMID: 35810638 (View on PubMed)

Kim GH. Proton Pump Inhibitor-Related Gastric Mucosal Changes. Gut Liver. 2021 Sep 15;15(5):646-652. doi: 10.5009/gnl20036.

Reference Type BACKGROUND
PMID: 32327613 (View on PubMed)

Kiyotoki S, Nishikawa J, Sakaida I. Efficacy of Vonoprazan for Helicobacter pylori Eradication. Intern Med. 2020 Jan 15;59(2):153-161. doi: 10.2169/internalmedicine.2521-18. Epub 2019 Jun 27.

Reference Type BACKGROUND
PMID: 31243237 (View on PubMed)

Sun Y, Zhang J. Helicobacter pylori recrudescence and its influencing factors. J Cell Mol Med. 2019 Dec;23(12):7919-7925. doi: 10.1111/jcmm.14682. Epub 2019 Sep 19.

Reference Type BACKGROUND
PMID: 31536675 (View on PubMed)

Other Identifiers

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RMI/RMI-REC/approval 182

Identifier Type: -

Identifier Source: org_study_id

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