Phase II Clinical Trial of COVID-19 mRNA Vaccine in Adults Aged 18 Years and Older

PHASE2CompletedINTERVENTIONAL

Enrollment

150

Participants

Timeline

Start Date

July 6, 2022

Primary Completion Date

September 21, 2022

Study Completion Date

September 21, 2022

Conditions

COVID-19

Interventions

BIOLOGICAL

COVID-19 mRNA vaccine

2 doses of vaccine on Day 0 and Day 21

BIOLOGICAL

Placebo

2 doses of placebo on Day 0 and Day 21

Trial Locations (3)

Beijing Friendship Hospital, Beijing

Hebei Petro China Center Hospital, Langfang

Hunan Provincial Center for Disease Control and Prevention, Changsha