This study is designed to find out how well the COVID-19 vaccine protects people 50 to 64, who don't have any serious health problems, compared to a group that receives a vaccine that doesn't contain an ingredient to protect against COVID-19 (placebo).
The study is designed to evaluate if the COVID-19 vaccine reduces COVID-19 disease as compared to placebo given to healthy adults 50 to 64 years of age. Approximately 25,500 participants will be randomly chosen to get either one dose of COVID-19 vaccine or of a placebo.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
QUADRUPLE
Enrollment
5,240
Single dose
Single dose
Percentage of participants reporting local reactions or systemic events
Time frame: From Day 1 up to 7 days after Vaccination
Percentage of participants reporting adverse events
Time frame: From Day 1 through 4 weeks after vaccination
Percentage of participants reporting serious adverse events
Time frame: From Day 1 through 6 months after vaccination
First episode of confirmed COVID-19 cases
Time frame: From 0 days after vaccination through end of COVID-19 surveillance at least 6 months post-vaccination
First episode of confirmed COVID-19 cases
Time frame: From 7 days after vaccination through end of COVID-19 surveillance at least 6 months post-vaccination
Geometric Mean Ratio (GMR)
Time frame: From before vaccination to 1 month after vaccination
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Pinnacle Research Group, LLC
Anniston, Alabama, United States
North Alabama Research Center
Athens, Alabama, United States
Simon Williamson Clinic / Synexus Clinical Research US, Inc.
Birmingham, Alabama, United States
Accel Research Sites - Birmingham Clinical Research Unit
Birmingham, Alabama, United States
Cullman Clinical Trials
Cullman, Alabama, United States
AMR Clinical
Daphne, Alabama, United States
Medical Affiliated Research Center
Huntsville, Alabama, United States
AMR Clinical
Mobile, Alabama, United States
Chandler Clinical Trials
Chandler, Arizona, United States
Scottsdale Clinical Trials
Scottsdale, Arizona, United States
...and 186 more locations