Research company Research Centers of America (RCA) said on Tuesday that it is recruiting volunteers to participate in the clinical investigations of COVID-19 vaccines by several big companies under Operation Warp Speed, the Federal Government protocol and US FDA.

The RCA's medical director Dr Howard Schwartz participated in a conference with vice president Mike Pence, school leaders and members of the Miller School of Medicine, along with several other researchers working together to end the battle against COVID-19.

RCA will recruit between 300 and 500 participants solely for the Moderna study, under which, approximately 30,000 participants are expected to enroll in the US. The randomized, placebo-controlled study is expected to investigate a mRNA-1273 dose of 100 µg. The primary objective will be prevention of symptomatic COVID-19 disease.

To ensure the safety and ongoing monitoring of study participants, the data will be reviewed by an independent Data and Safety Monitoring Board organized by NIAID throughout the study, concluded RCA.