Drug intelligence / Profile preview

mRNA COVID-19 vaccine monovalent XBB.1.5

Development stage
Unknown
Lead developer
Pfizer
Modality
Recombinant Proteins and Enzymes, mRNA Therapeutics → RNA Therapeutics → Nucleic Acid Therapeutics, Lipid-based Nanoparticles → Nanoparticles → Drug Delivery Systems, Vaccines & Immunotherapeutics
Administration
Intramuscular
01

Overview

An updated monovalent COVID-19 vaccine formulation whose antigen encodes spike protein sequence from the Omicron XBB.1.5 lineage to broaden neutralizing antibodies against XBB-descendant variants. It is delivered as an mRNA vaccine in lipid nanoparticles for Pfizer-BioNTech and Moderna products, and as a protein subunit with Matrix-M adjuvant for Novavax. Mechanism: translated spike protein induces adaptive immunity, generating neutralizing antibodies and T-cell responses that reduce risk of severe COVID-19. Indication: active immunization to prevent COVID-19 across authorized age groups, primarily for seasonal 2023-2024 use aligned with circulating variants.

Brand names
Comirnaty Omicron XBB.1.5Spikevax XBB.1.5Novavax COVID-19 Vaccine XBB.1.5
Other names
2023-2024 COVID-19 vaccine XBB.1.5monovalent XBB.1.5-adapted COVID-19 vaccineOmicron XBB.1.5-adapted monovalent COVID-19 vaccine
02

Targets

SARS-CoV-2 spike

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