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An Immunity Persistence Study of Live Attenuated Varicella Vaccine
Sponsor: Sinovac (Dalian) Vaccine Technology Co., Ltd.
Summary
This an open phase Ⅳ clinical trial of live attenuated varicella vaccines manufactured by Sinovac (Dalian) Vaccine Technology Co., Ltd .The purpose of this study is to evaluate the immunity persistence of live attenuated varicella vaccine at 5 and 8 years after primary immunization with live attenuated varicella vaccine.
Official title: An Open Clinical Trial to Evaluate the Immunity Persistence of Live Attenuated Varicella Vaccine At 5 and 8 Years After Primary Immunization with Live Attenuated Varicella Vaccine
Key Details
Gender
All
Age Range
1 Year - 17 Years
Study Type
INTERVENTIONAL
Enrollment
703
Start Date
2021-12-18
Completion Date
2025-10-01
Last Updated
2025-01-27
Healthy Volunteers
Yes
Conditions
Interventions
Investigational Live Attenuated Varicella Vaccine
The live attenuated varicella vaccine was manufactured by Sinovac (Dalian) Vaccine Technology Co., Ltd. Live attenuated varicella-virus in 0·5 mL injection water with sucrose,sodium glutamate,sodium chloride,potassium chloride, sodium dihydrogen phosphate, potassium dihydrogen phosphate per injection.
Placebo (Freeze Dired Dilution)
The placebo (freeze dired dilution) was manufactured by Sinovac (Dalian) Vaccine Technology Co., Ltd. and contained no active ingredient.It was 0·5 mL injection water with sucrose,sodium glutamate,sodium chloride,potassium chloride and phosphate.
Locations (2)
Xiangcheng County Center for Disease Control and Prevention
Xuchang, Henan, China
Biyang County Center for Disease Control and Prevention
Zhumadian, Henan, China