Dual Therapy With Vonoprazan Plus Amoxicillin or Doxycycline Versus Bismuth Quadruple Therapy for Helicobacter Pylori Eradication.

March 3, 2026 updated by: Zhenyu Zhang, Nanjing First Hospital, Nanjing Medical University

Dual Therapy With Vonoprazan Plus Amoxicillin or Doxycycline Versus Bismuth Quadruple Therapy for Helicobacter Pylori Eradication:A Prospective, Multicenter, Open-label Randomized Controlled Study

It is planned to select Hp infection patients in a number of tertiary hospitals in Jiangsu and randomly divide them into three groups: group A is the classic group, receiving Vonoprazan 20mg, bid + amoxicillin 1.0g, bid + doxycycline 0.1g, bid + colloidal pectin bismuth 0.3g, bid and group C are double groups, respectively, receiving standard dose amoxicillin (1.0 g, bid) combined with vonorrasan dual regimen and doxycycline (0.1g, bid) combined with Vonoprazan dual regimen, the treatment course of the three groups was 14 days, and the oral dose of Vonoprazan was 20mg, bid, the eradication rate, adverse reactions, compliance and other aspects of the three groups were compared, In order to obtain a safe, efficient, economical and convenient Hp eradication program with a wider range of applications.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

It is planned to select Hp infection patients in a number of tertiary hospitals in Jiangsu and randomly divide them into three groups: group A is the classic group, receiving Vonoprazan 20mg, bid + amoxicillin 1.0g, bid + doxycycline 0.1g, bid + colloidal pectin bismuth 0.3g, bid and group C are double groups, respectively, receiving standard dose amoxicillin (1.0 g, bid) combined with vonorrasan dual regimen and doxycycline (0.1g, bid) combined with vonorrasan dual regimen, the treatment course of the three groups was 14 days, and the oral dose of Vonoprazan was 20mg, bid, the eradication rate, adverse reactions, compliance and other aspects of the three groups were compared, In order to obtain a safe, efficient, economical and convenient Hp eradication program with a wider range of applications.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
579

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • China
    • Jiangsu
      • Nanjing, Jiangsu, China, 210006
        • NanJing Frist Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  1. Age 18-65 years old;
  2. Patients confirmed to be positive for H. pylori by 13C-UBT or 14C-UBT;
  3. Patients who have not received Helicobacter pylori eradication therapy before, or patients who have failed to eradicate in the early stage but have not received eradication therapy within half a year;
  4. Voluntarily join this trial and sign the informed consent form.

Exclusion Criteria:

  1. Allergy to the study drug (penicillin, amoxicillin, Vonoprazan, doxycycline, etc.);
  2. Patients with confirmed active peptic ulcer;
  3. Patients who have received Helicobacter pylori eradication therapy within half a year;
  4. Use of antibiotics, bismuth, and histamine H2 receptor antagonists or PPIs for the first 2 weeks before starting study treatment;
  5. Use of adrenocorticosteroids, non-steroidal anti-inflammatory drugs, anticoagulants, barbiturates, phenytoin, or carbamazepine drugs;
  6. History of esophageal or gastric surgery;
  7. Pregnant or lactating women;
  8. Alcoholism
  9. Suffering from serious concomitant diseases, such as liver disease, cardiovascular disease, lung disease, kidney disease;
  10. Hepatic insufficiency caused by hepatitis, fatty liver and other reasons;
  11. Gastric mucosa-associated lymphoid tissue lymphoma (MALT), malignant tumor diseases.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: Group A Bismuth quadruple
Vonoprazan 20 mg, bid + amoxicillin 1.0 g, bid + doxycycline 0.1 g, bid + bismuth, treatment course 14 days
Drug: Vonoprazan+amoxicillin+doxycycline+bismuth for 14 days
Group A:The patient was treated with oral Vonoprazan 20 mg, bid + amoxicillin 1.0 g, bid + doxycycline 0.1 g, bid + bismuth for 14 days.
Other Names:
  • Doxycycline-based Bismuth Quadruple Therapy
Experimental: Group B Amoxicillin Dual therapy
Vonoprazan 20 mg, bid + amoxicillin 1.0 g, bid , treatment course 14 days
Drug: Vonoprazan+Amoxicillin
Group B: Patients were treated with oral Vonoprazan 20mg, bid + amoxicillin 1.0g, bid for 14 days.
Other Names:
  • Vonoprazan+Amoxicillin Dual therapy
Experimental: Group C doxycycline Dual therapy
Vonoprazan 20 mg, bid +doxycycline 0.1 g, bid，treatment course 14 days
Drug: Vonoprazan+doxycycline
Group C: Patients were treated with oral Vonoprazan 20 mg, bid + doxycycline 0.1 g, bid for 14 days.
Other Names:
  • Vonoprazan+doxycycline Dual therapy

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
HP eradication rate
Time Frame: 4-6 weeks after the end of the last dose
The eradication effect of Helicobacter pylori was tested by 13C-UBT or 14C-UBT
4-6 weeks after the end of the last dose

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Patient compliance
Time Frame: Within 3 days after the end of treatment
Rate of drug consumption during the treatment period of the subjects
Within 3 days after the end of treatment

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Security observations
Time Frame: Within 3 days after the end of treatment
Adverse drug reactions
Within 3 days after the end of treatment

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Nanjing First Hospital, Nanjing Medical University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 15, 2024

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
January 1, 2026

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
January 10, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
May 9, 2024

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 9, 2024

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
May 14, 2024

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 4, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 3, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • KY20240123-18

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings