Scientific Reports (Sep 2022)

Unbiased approach to identify and assess efficacy of human SARS-CoV-2 neutralizing antibodies

  • Xia Cao,
  • Junki Maruyama,
  • Heyue Zhou,
  • Yanwen Fu,
  • Lisa Kerwin,
  • Colin Powers,
  • Rachel A. Sattler,
  • John T. Manning,
  • Alok Singh,
  • Reyna Lim,
  • Laura D. Healy,
  • Sachi Johnson,
  • Elizabeth Paz Cabral,
  • Donghui Li,
  • Lucy Lu,
  • Arthur Ledesma,
  • Daniel Lee,
  • Susan Richards,
  • Laura Rivero-Nava,
  • Yan Li,
  • Weiqun Shen,
  • Karen Stegman,
  • Benjamin Blair,
  • Shinji Urata,
  • Magumi Kishimoto-Urata,
  • Jamie Ko,
  • Na Du,
  • Kyndal Morais,
  • Kate Lawrence,
  • Ianne Rivera,
  • Chin-I. Pai,
  • Damien Bresson,
  • Mark Brunswick,
  • Yanliang Zhang,
  • Henry Ji,
  • Slobodan Paessler,
  • Robert D. Allen

DOI
https://doi.org/10.1038/s41598-022-19780-7
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 12

Abstract

Read online

Abstract Coronavirus disease 2019 (COVID-19) continues to significantly impact the global population, thus countermeasure platforms that enable rapid development of therapeutics against variants of SARS-CoV-2 are essential. We report use of a phage display human antibody library approach to rapidly identify neutralizing antibodies (nAbs) against SARS-CoV-2. We demonstrate the binding and neutralization capability of two nAbs, STI-2020 and STI-5041, against the SARS-CoV-2 WA-1 strain as well as the Alpha and Beta variants. STI-2020 and STI-5041 were protective when administered intravenously or intranasally in the golden (Syrian) hamster model of COVID-19 challenged with the WA-1 strain or Beta variant. The ability to administer nAbs intravenously and intranasally may have important therapeutic implications and Phase 1 healthy subjects clinical trials are ongoing.