COVID-19 Clinical Trial
Official title:
A Phase IIb, Randomized, Double-Blinded Trial to Evaluate the Immunogenicity and Safety Study of the Booster Dose Using the High or Medium Dose of COVID- 19 Vaccine (Vero Cell), Inactivated in Healthy Adults Who Have Completed Two Doses of mRNA Vaccine in Hong Kong
This is a randomized, double-blinded, Phase IIb clinical trial of COVID-19 vaccine (CoronaVac®) manufactured by Sinovac Research & Development Co., Ltd.The purpose of this study is to evaluate to evaluate the changes in immunogenicity before and after the booster vaccine using the high (1200 SU) or medium (600 SU) dose of COVID-19 Vaccine (Vero Cell), Inactivated.
This is a randomized, double-blinded, Phase IIb clinical trial of 150 participants aged 18 years and above, who have completed two doses of mRNA COVID-19 vaccine as the primary vaccination for at least six months after the second dose. After enrollment, participants will be randomly assigned into two study arms at a ratio of 1:1 to receive a booster of one dose of medium-dose (600 SU) or one dose of high-dose (1200 SU) COVID-19 Vaccine. ;
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