Novavax Nuvaxovid COVID-19 Vaccine Granted Expanded Provisional Approval in New Zealand as a First and Second Booster for Adults

Novavax, Inc. announced that New Zealand’s Medsafe has granted expanded provisional approval for Nuvaxovid™ (NVX-CoV2373) COVID-19 vaccine for active immunization to prevent coronavirus disease 2019 (COVID-19) caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) as a heterologous and homologous booster dose in adults aged 18 and older.

Following the expanded provisional approval decision by Medsafe, New Zealand, people may now choose Nuvaxovid as their first and/or second COVID-19 booster dose(s) after completion of their primary series using any of the authorized COVID-19 vaccines.

“We are pleased to offer another booster choice and the only protein-based COVID-19 vaccine for those aged 18 and older in New Zealand,” said Stanley C. Erck, President and Chief Executive Officer, Novavax. “As New Zealand endures winter months where thousands of COVID-19 infections are being recorded each day, we believe our vaccine is a strong option, particularly given its broad immune responses to a wide range of circulating variants.”

The request for expanded provisional approval for the booster dose is supported by data from Novavax’ Phase 2 trial conducted in Australia, from a separate Phase 2 trial conducted in South Africa, and from the UK-sponsored COV-BOOST trial. As part of the Novavax-sponsored Phase 2 trials, a single booster dose of Nuvaxovid was administered to healthy adult participants approximately six months after their primary two-dose vaccination series of Nuvaxovid. The third dose produced increased immune responses comparable to or exceeding levels associated with protection in Phase 3 clinical trials. In the COV-BOOST trial, Nuvaxovid induced a significant antibody response when used as a heterologous third booster dose.

In the Novavax-sponsored trials, following the booster, local and systemic reactions had a median duration of approximately two days. The incidence of Grade 3 or higher events remained relatively low. Safety reporting of reactogenicity events showed an increasing incidence across all three doses of Nuvaxovid, reflecting the increased immunogenicity seen with a third dose. Medically attended adverse events, potentially immune-mediated medical conditions, and severe adverse events occurred infrequently following the booster dose and were balanced between vaccine and placebo groups.

As a booster for adults, Nuvaxovid is also provisionally registered in Australia and approved in Japan, and is actively under review in other markets.

New Zealand previously granted provisional approval for Nuvaxovid in adults aged 18 and older in February 2022. Novavax’ sponsor in Australia and New Zealand is Biocelect Pty. Ltd.