• FluTrackers.com Inc. does not provide medical advice. Information on this web site is collected from various internet resources, and the FluTrackers board of directors makes no warranty to the safety, efficacy, correctness or completeness of the information posted on this site by any author or poster. The information collated here is for instructional and/or discussion purposes only and is NOT intended to diagnose or treat any disease, illness, or other medical condition. Every individual reader or poster should seek advice from their personal physician/healthcare practitioner before considering or using any interventions that are discussed on this website. By continuing to access this website you agree to consult your personal physican before using any interventions posted on this website, and you agree to hold harmless FluTrackers.com Inc., the board of directors, the members, and all authors and posters for any effects from use of any medication, supplement, vitamin or other substance, device, intervention, etc. mentioned in posts on this website, or other internet venues referenced in posts on this website.
  • We are not asking for any donations. Do not donate to any entity who says they are raising funds for us.

Nat Commun . Omicron COVID-19 immune correlates analysis of a third dose of mRNA-1273 in the COVE trial

tetano

Editor, Senior Moderator
Nat Commun


. 2024 Sep 11;15(1):7954.
doi: 10.1038/s41467-024-52348-9. Omicron COVID-19 immune correlates analysis of a third dose of mRNA-1273 in the COVE trial

Bo Zhang[SUP] 1 [/SUP], Youyi Fong[SUP] 1 2 [/SUP], Jonathan Fintzi[SUP] 3 [/SUP], Eric Chu[SUP] 4 [/SUP], Holly E Janes[SUP] 1 2 [/SUP], Avi Kenny[SUP] 5 [/SUP], Marco Carone[SUP] 5 [/SUP], David Benkeser[SUP] 6 [/SUP], Lars W P van der Laan[SUP] 7 [/SUP], Weiping Deng[SUP] 8 [/SUP], Honghong Zhou[SUP] 8 [/SUP], Xiaowei Wang[SUP] 8 [/SUP], Yiwen Lu[SUP] 1 [/SUP], Chenchen Yu[SUP] 1 [/SUP], Bhavesh Borate[SUP] 1 [/SUP], Haiyan Chen[SUP] 9 [/SUP], Isabel Reeder[SUP] 9 [/SUP], Lindsay N Carpp[SUP] 1 [/SUP], Christopher R Houchens[SUP] 9 [/SUP], Karen Martins[SUP] 9 [/SUP], Lakshmi Jayashankar[SUP] 9 [/SUP], Chuong Huynh[SUP] 9 [/SUP], Carl J Fichtenbaum[SUP] 10 [/SUP], Spyros Kalams[SUP] 11 [/SUP], Cynthia L Gay[SUP] 12 [/SUP], Michele P Andrasik[SUP] 1 [/SUP], James G Kublin[SUP] 1 [/SUP], Lawrence Corey[SUP] 1 13 [/SUP], Kathleen M Neuzil[SUP] 14 15 [/SUP], Frances Priddy[SUP] 8 [/SUP], Rituparna Das[SUP] 8 [/SUP], Bethany Girard[SUP] 8 [/SUP], Hana M El Sahly[SUP] 16 [/SUP], Lindsey R Baden[SUP] 17 [/SUP], Thomas Jones[SUP] 9 [/SUP], Ruben O Donis[SUP] 9 [/SUP], Richard A Koup[SUP] 18 [/SUP], Peter B Gilbert[SUP] 1 2 5 [/SUP], Dean Follmann[SUP] 19 [/SUP]; United States Government (USG) COVID-19 Immune Assays Team; Moderna, Inc. Team; Coronavirus Vaccine Prevention Network (CoVPN)/Coronavirus Efficacy (COVE) Team; USG/CoVPN Biostatistics Team



Collaborators, Affiliations
Abstract

In the phase 3 Coronavirus Efficacy (COVE) trial (NCT04470427), post-dose two Ancestral Spike-specific binding (bAb) and neutralizing (nAb) antibodies were shown to be correlates of risk (CoR) and of protection against Ancestral-lineage COVID-19 in SARS-CoV-2 naive participants. In the SARS-CoV-2 Omicron era, Omicron subvariants with varying degrees of immune escape now dominate, seropositivity rates are high, and booster doses are administered, raising questions on whether and how these developments affect the bAb and nAb correlates. To address these questions, we assess post-boost BA.1 Spike-specific bAbs and nAbs as CoRs and as correlates of booster efficacy in COVE. For naive individuals, bAbs and nAbs inversely correlate with Omicron COVID-19: hazard ratios (HR) per 10-fold marker increase (95% confidence interval) are 0.16 (0.03, 0.79) and 0.31 (0.10, 0.96), respectively. In non-naive individuals the analogous results are similar: 0.15 (0.04, 0.63) and 0.28 (0.07, 1.08). For naive individuals, three vs two-dose booster efficacy correlates with predicted nAb titer at exposure, with estimates -8% (-126%, 48%), 50% (25%, 67%), and 74% (49%, 87%), at 56, 251, and 891 Arbitrary Units/ml. These results support the continued use of antibody as a surrogate endpoint.


 
Back
Top Bottom