Long-term Efficacy of Recombinant Zoster Vaccine (CHO Cell) Study

NCT ID: NCT07293065

Last Updated: 2025-12-18

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

PHASE3

Total Enrollment

12000 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-12-19

Study Completion Date

2028-12-31

Brief Summary

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The purpose of the sutdy is to evaluate the protective efficacy of Recombinant Herpes Zoster Vaccine (CHO Cell) (hereinafter referred to as "the investigational vaccine") in preventing herpes zoster at 13-36 months after complete immunization with the 0- and 2-month immunization schedule in individuals aged 40 years and older.

Detailed Description

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Conditions

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Herpes Zoster

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Vaccine Group

Subjects will receive Recombinant Zoster Vaccine (CHO cell) according to a 0, 2-month schedule

Group Type EXPERIMENTAL

Recombinant Zoster Vaccine (CHO Cell)

Intervention Type BIOLOGICAL

0.5 mL per dose, containing a total of 50 µg recombinant varicella zoster virus glycoprotein E, adjuvanted with MA105. Intramuscular injection

Placebo Group

Subjects will receive NaCl solution placebo according to a 0, 2-month schedule

Group Type PLACEBO_COMPARATOR

NaCl solution Placebo

Intervention Type BIOLOGICAL

0.5 mL per dose, containing 4.5 mg sodium chloride. Intramuscular injection

Interventions

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Recombinant Zoster Vaccine (CHO Cell)

0.5 mL per dose, containing a total of 50 µg recombinant varicella zoster virus glycoprotein E, adjuvanted with MA105. Intramuscular injection

Intervention Type BIOLOGICAL

NaCl solution Placebo

0.5 mL per dose, containing 4.5 mg sodium chloride. Intramuscular injection

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

1. Participants in the MKKCT-100-003 study who have completed two doses of the investigational vaccine;
2. Males or females able to provide legal identity certificate;
3. Participants voluntarily agree to participate in the study, and sign the informed consent form;
4. Able to understand the study procedures and participate in all scheduled follow-up visits, and able to comply with the protocol requirements (such as cooperating in filling out questionnaires/scales, and being regularly contacted during the study for evaluation, etc.).

Exclusion Criteria

1. Participants who plan to use any products (drugs, vaccines, or medical devices) other than the investigational product for the prevention of VZV infection before signing the informed consent form or during the study period;
2. Participants with a history of herpes zoster;
3. Participants with any confirmed or suspected immunosuppressive or immunodeficiency condition caused by diseases (e.g., malignant tumors, human immunodeficiency virus infections, etc.) or immunosuppressive/cytotoxic treatments (e.g., medications used during cancer chemotherapy, organ transplantation, or treatment of autoimmune diseases);
4. Participants who are currently participating in or plan to participate in other clinical trials during the study;
5. Significant underlying diseases or any other condition that, in the opinion of the investigator, may prevent completion of the trial.
Minimum Eligible Age

40 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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MAXVAX Biotechnology Limited Liability Company

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Hebei Provincial Center for Disease Control and Prevention

Shijiazhuang, Hebei, China

Site Status

Henan Center for Diseases Control and Prevention

Zhengzhou, Henan, China

Site Status

Hubei Provincial Center for Disease Control and Prevention

Wuhan, Hubei, China

Site Status

Yunnan Center For Disease Control and Prevention

Kunming, Yunnan, China

Site Status

Countries

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China

Central Contacts

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Yanxia Wang, Master

Role: CONTACT

Phone: 13613816598

Email: [email protected]

Facility Contacts

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Zhiwei Wu, Master

Role: primary

Yanxia Wang, Master

Role: primary

Beifang Yang, Doctor

Role: primary

Yan Zheng, Master

Role: primary

Other Identifiers

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MKKCT-100-005

Identifier Type: -

Identifier Source: org_study_id