Efficacy Trial of a Vaccine to Prevent Herpes Zoster in Adults Over 40 Years of Age
A Multi-center, Randomized, Double-blinded, Phase 3 Trial to Evaluate the Efficacy Against Herpes Zoster of a Live Attenuated Varicella-Zoster Virus Vaccine in Adults Over 40 Years of Age
1 other identifier
interventional
30,000
1 country
3
Brief Summary
Varicella-zoster virus (VZV) is a herpesvirus that causes two distinct clinical syndromes.Primary infection is manifested as varicella (chickenpox), whereas reactivation of latent VZV results in a localized eruption known as herpes zoster. More than 99.6% of people 40 years of age orolder had evidence of previous VZV infection. This study plans to have 30000 adults 40 years of age or older involoved in a randomized, double-blind, placebo-controlled trial of an investigational live attenuated varicella-zoster virus vaccine. The investigational vaccines are produced by Changchun Changsheng biotechnology co. LTD. The incidence of herpes zoster and the severity, and duration of the associated pain and discomfort were measured after the vaccination. And the safety of the varicella-zoster virus vaccine is also evaluated.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_3
Started Oct 2017
Shorter than P25 for phase_3
3 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
October 6, 2017
CompletedFirst Submitted
Initial submission to the registry
October 14, 2017
CompletedFirst Posted
Study publicly available on registry
October 19, 2017
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 19, 2019
CompletedStudy Completion
Last participant's last visit for all outcomes
January 19, 2019
CompletedMarch 30, 2021
March 1, 2021
1.3 years
October 14, 2017
March 28, 2021
Conditions
Outcome Measures
Primary Outcomes (1)
The incidence of herpes zoster 30 days after vaccination.
The incidence of herpes zoster diagnosed in participants 30 days after vaccination.
30 days-2 years after the vaccination
Secondary Outcomes (12)
The incidence of herpes zoster after vaccination.
within 0 day -2 years after the vaccination
The incidence of laboratory-confirmed herpes zoster 30 days after vaccination.
30 days-2 years after the vaccination
The incidence of herpes zoster with severe postherpetic neuralgia (ZBPI scores≥3) 30 days after vaccination.
30 days-2 years after the vaccination
The incidence of herpes zoster with postherpetic neuralgia 30 days after vaccination.
30 days-2 years after the vaccination
The incidence of herpes zoster with severe pain (ZBPI scores≥3) 30 days after vaccination. Time Frame: 30 days-2 years after the vaccination
The incidence of herpes zoster with severe pain (ZBPI scores≥3) in participants 30 days after vaccination.
- +7 more secondary outcomes
Study Arms (2)
Vaccine
EXPERIMENTALlive attenuated varicella-zoster virus vaccine (with live virus \>=4.3 LgPFU per dose)
Placebo
PLACEBO COMPARATORPlacebo with no live virus
Interventions
One shot of the live attenuated varicella-zoster virus vaccine (with live virus \>=4.3 LgPFU per dose)
Eligibility Criteria
You may qualify if:
- Healthy volunteers aged over 40 years (male or female).
- Able to comply with all clinical trial protocol requirements and willing to complete all the visit plan process during the whole clinical trial observation period.
- Able to understand the content of informed consent and willing to sign the informed consent.
- Able to complete the diary card independently.
- For females only (40-49 years), a negative urine pregnancy test and willing to practice continuous effective contraception during the study.
- Axillary temperature ≤37.0°C.
You may not qualify if:
- Prior history of herpes zoster.
- Prior history of vaccination with herpes zoster vaccine or chickenpox vaccine.
- History of allergic disease likely to be exacerbated by any component of the vaccine.
- Taking immunoglobulins and/or any blood products within the last 3 months or will receive these products during the study period.
- Taking certain pharmaceuticals to be like salicylate kind, including aspirin, and difluorosalicylic, or going to take these medicine during the study period.
- Participation in another research study involving receipt of an investigational product in the last 30 days.
- Prior administration of attenuated vaccine in last 28 days.
- Prior administration of subunit vaccine, inactivated vaccine or allergic therapy in last 14 days.
- History of serious disease and the participation in the clinical trial is likely to increase the disease risk and interfere with the observation of clinical trial index.
- Taking immunosuppressive therapy in last 6 months.
- Any autoimmune disease or immunodeficient state, autoimmune disease or immunodeficient disease.
- Active tuberculosis patient.
- Acute or chronic infections at the vaccination day (axillary temperature\>37.0°C).
- Coagulation disorders (coagulation factor deficiency, coagulopathy or platelet disorder) diagnosed by doctors, or obvious bruises or blood coagulation noticed.
- Woman who is breast-feeding.
- +1 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (3)
Hunan Provincial Center for Disease Control and Prevention
Loudi, Hunan, 417000, China
Jiangsu Province Centers for Disease Control and Prevention
Nanjing, Jiangsu, 210009, China
Zhejiang Provincial Center for Disease Control and Prevention
Hanzhou, Zhejiang, 310051, China
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- NETWORK
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Profesor
Study Record Dates
First Submitted
October 14, 2017
First Posted
October 19, 2017
Study Start
October 6, 2017
Primary Completion
January 19, 2019
Study Completion
January 19, 2019
Last Updated
March 30, 2021
Record last verified: 2021-03
Data Sharing
- IPD Sharing
- Will not share