A Blind, Randomized and Controlled Study of Live Attenuated Varicella Vaccines

NCT ID: NCT02981836

Last Updated: 2017-10-26

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

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

5997 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-08-31

Study Completion Date

2017-09-30

Brief Summary

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The purpose of this study is to evaluate the protective effect, safety and immunogenicity of a live attenuated varicella vaccine in healthy children.

Detailed Description

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This study is a randomized, blind, controlled phase III clinical trial. The purpose of this study is to evaluate the protective effect, safety and immunogenicity of a live attenuated varicella vaccine manufactured by Sinovac (Dalian) Vaccine Technology Co., Ltd. The control is diluent of lyophilized vaccine manufactured by Sinovac (Dalian) Vaccine Technology Co., Ltd. All participants are healthy, and will be randomly assigned into experimental group or control group in the ratio 1:1.

Conditions

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Varicella

Keywords

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live attenuated varicella vaccine protective effect safety immunogenicity child

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

TRIPLE

Participants Investigators Outcome Assessors

Study Groups

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Experimental Group

* Single intramuscular injection of the investigational vaccine (0.5 ml) on Day 0;
* Intervention: investigational live attenuated varicella vaccine;

Group Type EXPERIMENTAL

Investigational live attenuated varicella vaccine

Intervention Type BIOLOGICAL

The investigational vaccine was manufactured by Sinovac (Dalian) Vaccine Technology Co., Ltd.

Control Group

* Single intramuscular injection of the diluent of lyophilized vaccine (0.5 ml) on Day 0;
* Intervention: diluent of lyophilized vaccine;

Group Type SHAM_COMPARATOR

diluent of lyophilized vaccine

Intervention Type BIOLOGICAL

The diluent of lyophilized vaccine was manufactured by Sinovac (Dalian) Vaccine Technology Co., Ltd.

Interventions

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Investigational live attenuated varicella vaccine

The investigational vaccine was manufactured by Sinovac (Dalian) Vaccine Technology Co., Ltd.

Intervention Type BIOLOGICAL

diluent of lyophilized vaccine

The diluent of lyophilized vaccine was manufactured by Sinovac (Dalian) Vaccine Technology Co., Ltd.

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

* Healthy volunteer between 1 - 12 years old;
* Proven legal identity;
* Guardian(s) of the volunteer and/or volunteers themselves should be capable of understanding the written consent form, and such form should be signed before the volunteer being included into this study;

Exclusion Criteria

* Prior vaccination with varicella vaccine or with history of varicella zoster virus (VZV) infection;
* Axillaty temperature \> 37.0 °C;
* History of allergy to any vaccine or vaccine ingredient, or serious adverse reaction(s) to vaccination, such as urticaria, difficulty in breathing, angioneurotic edema, abdominal pain, etc;
* History of epilepsy, seizures or convulsions, or a family history of mental illness, autoimmune disease or immunodeficiency;
* Severe malnutrition, congenital malformation, developmental disorders, or serious chronic diseases;
* Acute disease or acute stage of chronic disease within 7 days prior to study entry;
* Receipt of any of the following products:

1. Any subunit vaccine or inactivated vaccine within 7 days prior to study entry;
2. Any live attenuated vaccine within 1 month prior to study entry;
3. Any blood product, immunosuppressant, hormone, or other investigational medicine(s) within 30 days prior to study entry;
* Any significant abnormity of heart, lung, skin, or pharynx;
* Any other factor that suggesting the volunteer is unsuitable for this study based on the opinions of investigators;
Minimum Eligible Age

1 Year

Maximum Eligible Age

12 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Sinovac (Dalian) Vaccine Technology Co., Ltd.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Shengli Xia

Role: PRINCIPAL_INVESTIGATOR

Henan Provincial Center for Disease Control and Prevention

Locations

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Xiangcheng County Center for Disease Control and Prevention

Xuchang, Henan, China

Site Status

Biyang County Center for Disease Control and Prevention

Zhumadian, Henan, China

Site Status

Countries

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China

References

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Zhang Y, Wang L, Wang Y, Zhang W, Jia N, Xie Z, Huang L, You W, Lu W, Li E, Gao F, Hu Y, Meng F, Xia S. Immunogenicity and Safety of a Booster Dose of Live Attenuated Varicella Vaccine, and Immune Persistence of a Primary Dose for Children Aged 2 to 6 Years. Vaccines (Basel). 2022 Apr 22;10(5):660. doi: 10.3390/vaccines10050660.

Reference Type DERIVED
PMID: 35632416 (View on PubMed)

Hao B, Chen Z, Zeng G, Huang L, Luan C, Xie Z, Chen J, Bao M, Tian X, Xu B, Wang Y, Wu J, Xia S, Yuan L, Huang J. Efficacy, safety and immunogenicity of live attenuated varicella vaccine in healthy children in China: double-blind, randomized, placebo-controlled clinical trial. Clin Microbiol Infect. 2019 Aug;25(8):1026-1031. doi: 10.1016/j.cmi.2018.12.033. Epub 2019 Jan 4.

Reference Type DERIVED
PMID: 30616012 (View on PubMed)

Other Identifiers

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PRO-VZV-3001

Identifier Type: -

Identifier Source: org_study_id