552
Participants
Start Date
October 31, 2020
Primary Completion Date
April 30, 2021
Study Completion Date
February 8, 2023
Two doses of low dosage inactivated SARS-CoV-2 vaccine at the schedule of day 0,28
The inactivated SARS-CoV-2 vaccine was manufactured by Sinovac Research \& Development Co., Ltd., with a antigen content of 300SU/0.5ml
Two doses of medium dosage inactivated SARS-CoV-2 vaccine at the schedule of day 0,28
The inactivated SARS-CoV-2 vaccine was manufactured by Sinovac Research \& Development Co., Ltd., with a antigen content of 600SU/0.5ml
Two doses of placebo at the schedule of day 0,28
The placebo contains no active ingredient and manufactured by Sinovac Research \& Development Co., Ltd.
Zanhuang county Center for Disease Control and Prevention, Shijiazhuang
Sinovac Research and Development Co., Ltd.
INDUSTRY