
The rapid identification of a correlate of protection (CoP) for Covid-19 vaccines based on several harmonized randomized phase 3 trials using standard validated assays constitutes an essential success in vaccinology. A CoP is an immune marker that can be used to reliably predict a vaccine’s level of efficacy in preventing a clinically relevant outcome. The level of this marker is measured shortly (2 to 4 weeks) after completion of the vaccination regimen. It provides an actionable basis for decisions such as regulatory approval of an efficacious vaccine for a new population not included in the pivotal randomized phase 3 trials or approval of a refined version of a vaccine previously shown to be efficacious.
Like
Save
Share