• Novavax’s JN.1 COVID-19 vaccine is active against current circulating strains, including KP.2 and KP.3

GAITHERSBURG, MD, USA I June 24, 2024 I Novavax, Inc. (Nasdaq: NVAX), a global company advancing protein-based vaccines with its Matrix-M™ adjuvant, today announced that it has filed for a type II variation of existing Marketing Authorization with the European Medicines Agency (EMA) for its JN.1 COVID-19 vaccine (NVX-CoV2705) for individuals aged 12 and older. The submission is in line with guidance from EMA and the World Health Organization to target the JN.1 lineage this fall.1,2

“Novavax is working closely with European markets seeking to offer a protein-based alternative to mRNA this fall for COVID-19 vaccination,” said John C. Jacobs, President and Chief Executive Officer, Novavax. “Our updated COVID-19 vaccine is active against current circulating strains, including KP.2 and KP.3.”

Nonclinical data have demonstrated that Novavax’s JN.1 COVID-19 vaccine induces broad neutralization responses to JN.1 lineage viruses, including those containing the F456L and R346T mutations, and to “FLiRT” and “FLuQE” variants.2-4 Novavax’s vaccine also produces conserved polyfunctional, Th1-biased CD4+ T cell responses to a range of JN.1 lineage variants.2 Novavax’s JN.1 COVID-19 vaccine targets the “parent strain” of KP.2 and KP.3.2 

Novavax intends to have its vaccine in unit-dose vials available for distribution in the European Union for immediate release post-approval. Novavax has also filed with the U.S. Food and Drug Administration (FDA) and is working with other regulatory authorities globally on authorization or approval of its JN.1 COVID-19 vaccine.

About the Novavax COVID-19 2024-2025 Formula (NVX-CoV2705)
NVX-CoV2705 is an updated version of Novavax’s prototype COVID-19 vaccine (NVX-CoV2373) formulated to target the JN.1 variant. It is a protein-based vaccine made by creating copies of the surface spike protein of SARS-CoV-2 that causes COVID-19. With Novavax’s unique recombinant nanoparticle technology, the non-infectious spike protein serves as the antigen that primes the immune system to recognize the virus, while Novavax’s Matrix-M adjuvant enhances and broadens the immune response. The vaccine is packaged as a ready-to-use liquid formulation and is stored at 2° to 8°C, enabling the use of existing vaccine supply and cold chain channels.

About Matrix-M™ Adjuvant 
When added to vaccines, Novavax’s patented saponin-based Matrix-M adjuvant enhances the immune system response, making it broader and more durable. The Matrix-M adjuvant stimulates the entry of antigen-presenting cells at the injection site and enhances antigen presentation in local lymph nodes.

About Novavax
Novavax, Inc. (Nasdaq: NVAX) promotes improved health by discovering, developing and commercializing innovative vaccines to help protect against serious infectious diseases. Novavax, a global company based in Gaithersburg, Md., U.S., offers a differentiated vaccine platform that combines a recombinant protein approach, innovative nanoparticle technology and Novavax’s patented Matrix-M adjuvant to enhance the immune response. The Company’s portfolio includes its COVID-19 vaccine and its pipeline includes a vaccine for COVID-19 and influenza combined. In addition, Novavax’s adjuvant is included in the University of Oxford and Serum Institute of India’s R21/Matrix-M malaria vaccine. Please visit novavax.com and LinkedIn for more information.


  1. European Medicines Agency. ETF recommends updating COVID-19 vaccines to target new JN.1 variant. April 30, 2024. Available at: https://www.ema.europa.eu/en/news/etf-recommends-updating-covid-19-vaccines-target-new-jn1-variant
  2. World Health Organization. Statement on the antigen composition of COVID-19 vaccines. April 26, 2024. Available at: https://www.who.int/news/item/26-04-2024-statement-on-the-antigen-composition-of-covid-19-vaccines
  3. U.S. Centers for Disease Control and Prevention. Variant Proportions [Data set]. In COVID Data Tracker. 2024. Available at: https://covid.cdc.gov/covid-data-tracker/#variant-proportions
  4. Focosi D, Spezia PG, Gueli F, Maggi F. The Era of the FLips: How Spike Mutations L455F and F456L (and A475V) Are Shaping SARS-CoV-2 Evolution. Viruses. 2023;16(1):3. Published 2023 Dec 19. doi:10.3390/v16010003.

SOURCE: Novavax