Sanofi (Nasdaq:SNY) and GSK (NYSE:GSK) have announced that their next-generation COVID-19 booster vaccine candidate based on the beta variant yielded a substantial immune boost in adults previously primed with mRNA vaccines.
The novel vaccine yielded a strong increase in antibody titers above baseline against various variants of concern, including a 40-fold increase against the BA.1 omicron subvariant 15 days after vaccination. The same vaccine also yielded a 15-fold increase against the original D614 virus and a 30-fold increase against the beta strain.
The results were from two studies, the VAT02 Cohort 2 and COVIBOOST VAT013.
The new vaccine candidate elicited a more robust immune response than the Pfizer-BioNTech booster vaccine or the first-generation Sanofi-GSK vaccine candidate.
Last week, Moderna (Nasdaq:MRNA) also announced that its bivalent omicron booster vaccine candidate, mRNA-1273.214 yielded 1.75 times more neutralizing antibodies t…