The official end of the COVID-19 public health emergency in the U.S. in May did not mark the end of interest and investment in the area. In the shifting landscape, attention has pivoted to new markets, emerging strains, boosters, and the commercialization and distribution of COVID-19 vaccines and therapies.
Instead of the bivalent COVID-19 vaccines comprising both the original and omicron BA.4/BA.5 SARS-CoV-2 strains that have been in use in the U.S. since April, the CDC’s Advisory Committee for Immunization Practices voted 13-1 Sept. 12 to recommend the universal use of updated monovalent XBB-containing COVID-19 vaccines as authorized or approved by the FDA.
Novavax Inc. has signed off 6.5 million shares to SK Bioscience Co. Ltd. for an $85 million equity investment from the South Korean pharmaceutical firm, which also wrote off some of Novavax’s manufacturing liabilities, as part of their continuing vaccine alliance. Seongnam-si, South Korea-based SK Bioscience purchased Novavax shares at $13 each, reflecting a 59% premium over the 90-day trading value, to gain a 6.45% stake in the Gaithersburg, Md.-based mRNA vaccine company, an SK Bioscience spokesperson confirmed to BioWorld.
Novavax Inc. has signed off 6.5 million shares to SK Bioscience Co. Ltd. for an $85 million equity investment from the South Korean pharmaceutical firm, which also wrote off some of Novavax’s manufacturing liabilities, as part of their continuing vaccine alliance. Seongnam-si, South Korea-based SK Bioscience purchased Novavax shares at $13 each, reflecting a 59% premium over the 90-day trading value, to gain a 6.45% stake in the Gaithersburg, Md.-based mRNA vaccine company, an SK Bioscience spokesperson confirmed to BioWorld.
With GSK plc’s Arexvy approved in the U.S. as the first respiratory syncytial virus (RSV) vaccine, several other developers are lining up for what in five years could be a $10 billion market. Their aim is to provide lasting protection for those most susceptible to the endemic virus, particularly young children and those older than 60. Behind GSK is Pfizer Inc. with PF-06928316, which has a U.S. FDA PDUFA date set for this month, and Sanofi SA’s nirsevimab, for which FDA action is expected in the third quarter.
Harmonization and simplification won the day as the U.S. FDA’s Vaccines and Related Biological Products Advisory Committee (VRBPAC) looked toward the future of COVID-19 vaccines in the U.S. Jan. 26. The committee voted unanimously, 21-0, to recommend using the same strain composition for all COVID-19 vaccines available in the U.S., whether they’re used for primary doses or boosters. Such standardization also would align the composition of Novavax Inc.’s protein-based vaccine with that of the mRNA vaccines produced by Moderna Inc. and Pfizer Inc.-Biontech SE.
As the SARS-CoV-2 virus that’s responsible for COVID-19 continues to evolve across the world, a global response, similar to what’s used with influenza, would be ideal in evaluating and recommending vaccine strain composition changes from year to year. But “the current diversity of vaccine manufacturers and complexities in global supply of COVID-19 vaccines would make a globally coordinated, simultaneous vaccine composition evaluation and recommendation quite challenging,” the U.S. FDA said in its briefing document for the Jan. 26
meeting of the Vaccine and Related Biological Products Advisory Committee.
What was once effective is now a non-starter. Newly updated guidelines from the World Health Organization (WHO) caution against using the COVID-19 treatments sotrovimab, from GSK plc and Vir Biotechnology Inc., and Regen-Cov (casirivimab + imdevimab), from Regeneron Pharmaceuticals Inc. Omicron, the group said, has rendered the monoclonal antibodies ineffective.
Although it’s a latecomer to the COVID-19 pandemic in the U.S., there is a wedge of opportunity for Novavax Inc.’s adjuvanted protein-based vaccine among the 10% of the U.S. adult population that has yet to get a first jab.
European regulators have added several safety messages to approved COVID-19 vaccines, including a warning that Novavax Inc.’s Nuvaxovid could produce severe allergic reactions.