Novavax Statement on Publication of Positive Results from First Study of Co-administered COVID-19 and Influenza Vaccines

Positive results from the first co-administration study of a SARS-CoV-2 vaccine candidate and an approved influenza vaccine have been published in The Lancet Respiratory Medicine . The previously announced results demonstrate that vaccine efficacy and safety appeared to be preserved in those receiving both NVX-CoV2373, Novavax' recombinant nanoparticle protein-based COVID-19 vaccine candidate, and Seqirus’ adjuvanted, trivalent seasonal influenza vaccine (aTIV) or a cell-based, quadrivalent seasonal influenza vaccine (QIVc), compared to those vaccinated with NVX-CoV2373 alone. The data confirmed no early safety concerns, with local and systemic reactogenicity largely absent or mild in all groups. The paper, ‘ Safety, immunogenicity, and efficacy of a COVID-19 vaccine (NVX-CoV2373) co-administered with seasonal influenza vaccines: an exploratory substudy of a randomised, observer-blinded, placebo-controlled, phase 3 trial, ’ is available here . While additional research is underway , these findings suggest that concomitant vaccination may be a viable immunization strategy and may help inform immunization policy on co-administration of COVID-19 and influenza vaccines.

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