NPJ vaccines

Immune response to the LP.8.1-adapted BNT162b2 COVID-19 vaccine in animal studies

Updated

Abstract

An LP.8.1-adapted BNT162b2 vaccine elicited higher serum neutralizing antibody responses against the dominant XFG lineage of SARS-CoV-2.

  • SARS-CoV-2 has evolved into antigenically distinct lineages, impacting host immunity.
  • The JN.1 lineage derivatives have become prevalent globally.
  • In preclinical models, the LP.8.1-adapted vaccine was more effective than JN.1 and KP.2 vaccines in generating neutralizing antibodies.
  • This enhanced response was specifically noted against the XFG sublineage, which is currently dominant.
  • Results indicate a potential preference for the LP.8.1-adapted vaccine in future COVID-19 vaccine formulations.

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Full Text

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Funding

Competing interests

Competing interests: All authors are current or former employees of Pfizer or BioNTech and may, therefore, be respective shareholders. Pfizer and BioNTech participated in the design, analysis, and interpretation of the data as well as the writing of this report and the decision to publish. W.L., U.Ş., K.A.S., and K.M. are inventors on patents related to COVID-19 vaccines. P.S.A. and U.Ş. are inventors on patents related to RNA technology.
PubMed

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