The Impact of Helicobacter Pylori Eradication on the Vaginal Microecology Change

February 9, 2026 updated by: Second Affiliated Hospital, School of Medicine, Zhejiang University

The Impact of Rabeprazole-based Triple Therapy Plus Bismuth for First-line Helicobacter Pylori Eradication on the Vaginal Microecology Change: a Prospective, Randomized Controlled Trial

This clinical controlled study enrolled 73 H. pylori（Helicobacter Pylori ）-infected female participants, stratified into reproductive-age and menopausal cohorts, alongside 10 non-infected controls. Through integrated analysis of routine vaginal discharge parameters and longitudinal amplicon sequencing data of vaginal discharge, investigators analyzed the impact of H. pylori eradication therapy on vaginal microecology.

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

Between April 2023 and December 2024, a clinical investigation evaluating the impact of H. pylori eradication therapy on vaginal microbiota was conducted at the Gastroenterology outpatient clinic of the Second Affiliated Hospital, Zhejiang University School of Medicine. Eligible naive H. pylori infected female participants received rabeprazole-based triple therapy plus bismuth H. pylori eradication therapy: Rabeprazole 10 mg twice a day (Eisai Pharmaceutical Co., Ltd.), Colloidal Bismuth Pectin 220 mg twice a day (Shanxi Ante Biological Pharmaceutical Co., Ltd.), Amoxicillin 1.0 g twice a day (CSPC Zhongnuo Pharmaceutical (Shijiazhuang) Co., Ltd.), and Clarithromycin 0.5 g twice a day (Shanghai Abbott Pharmaceutical Co., Ltd.). The course of radical treatment in two groups was 14 days. A reference group of H. pylori non-infected females was concurrently enrolled.. Routine vaginal discharge examinations and longitudinal metagenomic sequencing of vaginal microbiota were performed at four timepoints: pre-therapy baseline (T1), 2-week (T2), 8-week (T3), and 6-month (T4) post-treatment. H. pylori infection status was re-evaluated at T3.

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.
Observational

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.
83

Contacts and Locations

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

Study Locations

  • China
    • Zhejiang
      • Hangzhou, Zhejiang, China
        • Department of Gastroenterology, Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University

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

Sampling Method

Non-Probability Sample

Study Population

H. pylori infected female

Description

Inclusion Criteria：

  • Aged 18-70 years, female
  • H. pylori infected or non-infected
  • No use of PPIs, H2 receptor antagonists, antibiotics, or bismuth agents within 4 weeks prior
  • No prior formal H. pylori eradication treatment

Exclusion Criteria：

  • Use of antibiotics or bismuth agents within 4 weeks before treatment, or use of PPIs or H2 receptor antagonists within 2 weeks before treatment
  • History of gastric or duodenal surgery
  • Concurrent presence of other severe cardiac, hepatic, or renal insufficiency, malignant tumors, or other serious internal medical diseases
  • Allergy to any component of the study drugs
  • Pregnant or lactating women
  • Participation in other drug clinical trials within 3 months before treatment
  • Inability to accurately express complaints or cooperate with the study investigators

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

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
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.
H. pylori infection

Inclusion Criteria: 1) Aged 18-70 years, female; 2) H. pylori infected or non-infected; 3) No use of proton pump inhibitors (PPIs), Histamine H2 receptor Antagonists（H2 receptor antagonists), antibiotics, or bismuth agents within 4 weeks prior; 4) No prior formal H. pylori eradication treatment.

Intervention: Eligible naive H. pylori infected female participants received rabeprazole-based triple therapy plus bismuth H. pylori eradication therapy.

Data Collection: Each visit included gynecological evaluation with duplicate vaginal discharge collection for routine examination and metagenomic sequencing.H.pylori status was re-evaluated.
Drug: rabeprazole-based triple therapy plus bismuth H. pylori eradication therapy
rabeprazole-based triple therapy plus bismuth H. pylori eradication therapy: Rabeprazole 10 mg twice a day (Eisai Pharmaceutical Co., Ltd.), Colloidal Bismuth Pectin 220 mg twice a day (Shanxi Ante Biological Pharmaceutical Co., Ltd.), Amoxicillin 1.0 g twice a day (CSPC Zhongnuo Pharmaceutical (Shijiazhuang) Co., Ltd.), and Clarithromycin 0.5 g twice a day (Shanghai Abbott Pharmaceutical Co., Ltd.)
Other Names:
  • H. pylori eradication

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
diversity and composition of vaginal microbiota
Time Frame: baseline (T1, pre-treatment), 2 weeks (T2), 8 weeks (T3), and 6 months (T4) post-therapy
1.Change in Vaginal Microbiota Diversity (Alpha/Beta) Before and After H. pylori Eradication Therapy；2.Composition of Vaginal Microbiota at the Phylum/Genus Level.
baseline (T1, pre-treatment), 2 weeks (T2), 8 weeks (T3), and 6 months (T4) post-therapy

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
routine vaginal discharge
Time Frame: Routine vaginal discharge examinations were assessed at baseline (T1, pre-treatment) and 8 weeks (T3),
Vaginal discharge indicators (pH value, color, cleanliness grade, Lactobacillus abundance, fungus detection, clue cells, white blood cells, epithelial cells, and other bacteria)
Routine vaginal discharge examinations were assessed at baseline (T1, pre-treatment) and 8 weeks (T3),

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.
Second Affiliated Hospital, School of Medicine, Zhejiang University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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.
March 24, 2023

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.
March 24, 2023

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.
March 24, 2024

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).
January 27, 2026

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.
February 9, 2026

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.
February 13, 2026

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.
February 13, 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.
February 9, 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, 2023

More Information

Terms related to this study

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.
  • 2023-0172
  • Approval No.: 2023-0282 (Other Identifier: The Second Affiliated Hospital, Zhejiang University School of Medicine)

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.

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