A Study on the Live-Attenuated Herpes Zoster Vaccine for Sequential Booster Immunization Following Recombinant Herpes Zoster Vaccine

August 4, 2026 updated by: Changchun BCHT Biotechnology Co.
Evaluate the immunogenicity after boost vaccination with the live attenuated herpes zoster vaccine.

Study Overview

Status

Not yet recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

100

Phase

  • Early Phase 1

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 Backup

  • Name: tian xiaoling

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

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Age ≥ 50 years old;
  • The participant can provide personal informed consent and sign the informed consent form;
  • temperature ≤ 37.0℃ on the day of administration;
  • capable of complying with the requirements of the clinical trial protocol to complete the trial.

Exclusion Criteria:

  • Subjects with immunodeficiency or immunosuppression caused by underlying diseases or treatments, including primary/acquired immunodeficiency (e.g., AIDS and other virus-induced immunodeficiency), hematologic malignancies (leukemia, lymphoma or other bone marrow/lymphoid neoplasms), ongoing immunosuppressive therapy, or radiotherapy/chemotherapy for malignancies.
  • Subjects with a history of allergic reaction to any component of the investigational product.
  • Subjects with acute infection or acute exacerbation of chronic infection (vaccination should be deferred).
  • Women of non-postmenopausal status with positive pregnancy test, pregnant or lactating women, or those planning pregnancy within 6 months.
  • Subjects with prior history of herpes zoster.
  • Subjects with prior receipt of varicella or herpes zoster vaccine.
  • Receipt of live-attenuated vaccines within 14 days, or subunit/inactivated vaccines within 7 days prior to study vaccination.
  • Receipt of whole-blood, plasma or immunoglobulin within 5 months before, or within 3 weeks after study vaccination.
  • Receipt of investigational drugs from other clinical trials within 1 month before study vaccination, current participation in another clinical trial, or planned use of investigational agents during study period.
  • Current or planned use of salicylates (including aspirin, diflunisal, etc.).
  • Uncontrolled abnormal blood pressure at screening (systolic blood pressure ≥160 mmHg and/or diastolic blood pressure ≥100 mmHg despite medication).

Subjects meeting contraindications or precautions specified in the product's prescribing information.

  • Any condition that, in the Investigator's opinion, may interfere with study evaluations.

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: Prevention
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: live-attenuated zoster vaccine
Biological: live-attenuated zoster vaccine
one dose of live-attenuated zoster vaccine to the particpent only administered one dose of recombinant zoster vaccine

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
immunogenicity
Time Frame: 30 days after administration
IgG to gE/FAMA antibody/Cellular immune level
30 days after administration

Collaborators and Investigators

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

Sponsor

Changchun BCHT Biotechnology Co.

Investigators

  • Principal Investigator: yan shaohong, Inner Mongolia Autonomous Region Center for Disease Control and Prevention

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 (Estimated)

August 13, 2026

Primary Completion (Estimated)

September 20, 2026

Study Completion (Estimated)

September 20, 2026

Study Registration Dates

First Submitted

August 4, 2026

First Submitted That Met QC Criteria

August 4, 2026

First Posted (Actual)

August 7, 2026

Study Record Updates

Last Update Posted (Actual)

August 7, 2026

Last Update Submitted That Met QC Criteria

August 4, 2026

Last Verified

August 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

  • PFDP20260520

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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