Moderna launches COVID-19 vaccine booster study to address new variants – PMLiVE

Moderna has begun giving booster doses of its COVID-19 vaccine to trial participants as part of an amendment to a phase 2 clinical study.
The phase 2 trial amendment has enrolled 60 participants who have already received Moderna’s original mRNA-1273 vaccine. They will receive a single booster dose of a modified candidate addressing the B.1.351 variant or a multivalent booster candidate.
The variant-specific booster candidate – mRNA-1273.351 – encodes for the spike protein of the SARS-CoV-2 variant…

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