학술논문

Quantifying how single dose Ad26.COV2.S vaccine efficacy depends on Spike sequence features.
Document Type
article
Source
Nature Communications. 15(1)
Subject
Humans
Ad26COVS1
COVID-19
SARS-CoV-2
Vaccine Efficacy
Amino Acids
Antibodies
Viral
Antibodies
Neutralizing
Language
Abstract
In the ENSEMBLE randomized, placebo-controlled phase 3 trial (NCT04505722), estimated single-dose Ad26.COV2.S vaccine efficacy (VE) was 56% against moderate to severe-critical COVID-19. SARS-CoV-2 Spike sequences were determined from 484 vaccine and 1,067 placebo recipients who acquired COVID-19. In this set of prespecified analyses, we show that in Latin America, VE was significantly lower against Lambda vs. Reference and against Lambda vs. non-Lambda [family-wise error rate (FWER) p