作者
Youyi Fong, Yunda Huang, David Benkeser, Lindsay N Carpp, Germán Áñez, Wayne Woo, Alice McGarry, Lisa M Dunkle, Iksung Cho, Christopher R Houchens, Karen Martins, Lakshmi Jayashankar, Flora Castellino, Christos J Petropoulos, Andrew Leith, Deanne Haugaard, Bill Webb, Yiwen Lu, Chenchen Yu, Bhavesh Borate, Lars WP van der Laan, Nima S Hejazi, April K Randhawa, Michele P Andrasik, James G Kublin, Julia Hutter, Maryam Keshtkar-Jahromi, Tatiana H Beresnev, Lawrence Corey, Kathleen M Neuzil, Dean Follmann, Julie A Ake, Cynthia L Gay, Karen L Kotloff, Richard A Koup, Ruben O Donis, Peter B Gilbert, Immune Assays Team, Coronavirus Vaccine Prevention Network (CoVPN)/2019nCoV-301 Principal Investigators and Study Team, United States Government (USG)/CoVPN Biostatistics Team
发表日期
2023/1/19
期刊
Nature communications
卷号
14
期号
1
页码范围
331
出版商
Nature Publishing Group UK
简介
In the PREVENT-19 phase 3 trial of the NVX-CoV2373 vaccine (NCT04611802), anti-spike binding IgG concentration (spike IgG), anti-RBD binding IgG concentration (RBD IgG), and pseudovirus 50% neutralizing antibody titer (nAb ID50) measured two weeks post-dose two are assessed as correlates of risk and as correlates of protection against COVID-19. Analyses are conducted in the U.S. cohort of baseline SARS-CoV-2 negative per-protocol participants using a case-cohort design that measures the markers from all 12 vaccine recipient breakthrough COVID-19 cases starting 7 days post antibody measurement and from 639 vaccine recipient non-cases. All markers are inversely associated with COVID-19 risk and directly associated with vaccine efficacy. In vaccine recipients with nAb ID50 titers of 50, 100, and 7230 international units (IU50)/ml, vaccine efficacy estimates are 75.7% (49.8%, 93.2%), 81.7% (66.3 …
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