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NVX-CoV2373 vaccine protects cynomolgus macaque upper and lower airways against SARS-CoV-2 challenge
Mimi Guebre-Xabier; Nita Patel; Jing-Hui Tian; Bin Zhou; Sonia Maciejewski; Kristal Lam; Alyse D Portnoff; Michael J Massare; Matthew B Frieman; Pedro A Piedra; Larry R Ellingsworth; Gregory Glenn; Gale Smith.
Afiliación
  • Mimi Guebre-Xabier; Novavax, Inc.
  • Nita Patel; Novavax, Inc.
  • Jing-Hui Tian; Novavax, Inc.
  • Bin Zhou; Novavax, Inc.
  • Sonia Maciejewski; Novavax, Inc.
  • Kristal Lam; Novavax, Inc
  • Alyse D Portnoff; Novavax, Inc.
  • Michael J Massare; Novavax, Inc.
  • Matthew B Frieman; University of Maryland School of Medicine
  • Pedro A Piedra; Baylor College of Medicine
  • Larry R Ellingsworth; Novavax, Inc.
  • Gregory Glenn; Novavax, Inc.
  • Gale Smith; Novavax, Inc.
Preprint en Inglés | bioRxiv | ID: ppbiorxiv-256578
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ABSTRACT
There is an urgent need for a safe and protective vaccine to control the global spread of SARS-CoV-2 and prevent COVID-19. Here, we report the immunogenicity and protective efficacy of a SARS-CoV-2 subunit vaccine (NVX-CoV2373) produced from the full-length SARS-CoV-2 spike (S) glycoprotein stabilized in the prefusion conformation. Cynomolgus macaques (Macaca fascicularis) immunized with NVX-CoV2373 and the saponin-based Matrix-M adjuvant induced anti-S antibody that was neutralizing and blocked binding to the human angiotensin-converting enzyme 2 (hACE2) receptor. Following intranasal and intratracheal challenge with SARS-CoV-2, immunized macaques were protected against upper and lower infection and pulmonary disease. These results support ongoing phase 1/2 clinical studies of the safety and immunogenicity of NVX-CoV2327 vaccine (NCT04368988). HighlightsO_LIFull-length SARS-CoV-2 prefusion spike with Matrix-M1 (NVX-CoV2373) vaccine. C_LIO_LIInduced hACE2 receptor blocking and neutralizing antibodies in macaques. C_LIO_LIVaccine protected against SARS-CoV-2 replication in the nose and lungs. C_LIO_LIAbsence of pulmonary pathology in NVX-CoV2373 vaccinated macaques. C_LI
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Texto completo: Disponible Colección: Preprints Base de datos: bioRxiv Tipo de estudio: Estudio pronóstico Idioma: Inglés Año: 2020 Tipo del documento: Preprint
Texto completo: Disponible Colección: Preprints Base de datos: bioRxiv Tipo de estudio: Estudio pronóstico Idioma: Inglés Año: 2020 Tipo del documento: Preprint
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