Moderna Inc.’s and Pfizer Inc.-Biontech SE’s COVID-19 bivalent boosters could be coming to the U.S. in the first week or so of September – even though the U.S. FDA just received the completed emergency use authorization (EUA) requests for the vaccines this week. The CDC is already taking pre-orders from providers, states and other jurisdictions for the yet-to-be authorized booster doses as part of its fall-winter booster campaign strategy. It also scheduled a Sept. 1-2 meeting of its Advisory Committee for Immunization Practices, signaling that it expects the FDA to grant the EUAs by the end of August.
While other COVID-19 vaccine makers are developing bivalent boosters comprising the original SARS-CoV-2 strain and an omicron variant, Russia’s Gamaleya National Research Center of Epidemiology and Microbiology is trekking a different course. Leaving behind the ancestral strain, Gamaleya’s next generation of the Sputnik V vaccine has been specifically adapted against delta and omicron variants of the coronavirus.
Moderna Inc. has received conditional authorization from the U.K.’s Medicines and Healthcare Products Regulatory Agency for its bivalent COVID-19 booster vaccine mRNA-1273.214 (Spikevax bivalent original/omicron). The conditional approval, which covers adults aged 18 years and older, marks a new phase in the ongoing global effort to curb the COVID-19 pandemic, as the new vaccine represents the first commercial product to incorporate omicron-specific epitopes. It contains 25 micrograms each of the spike proteins of the omicron BA.1 variant and the original Wuhan strain of SARS-CoV-2.
Now that the U.S. Department of Health and Human Services (HHS) has declared monkeypox a public health emergency, nearly two weeks after a similar declaration from the World Health Organization, the way is cleared for a coordinated response and emergency use authorizations to address supply challenges that could limit the availability of currently approved vaccines. It also has several companies ready to leap into the fray if their preclinical studies show a path to approval. HHS said it just shipped more than 602,000 doses of the Jynneos vaccine to states and jurisdictions, an increase of 266,000 in the past week.
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.
Lenzilumab, Humanigen Inc.’s lead candidate, undershot statistical significance on the primary endpoint in the U.S. NIH-sponsored ACTIV-5/BET-B study of treating hospitalized COVID-19 patients. The Short Hills, N.J.-based company’s stock (NASDAQ:HGEN) crumpled in the wake of the results.
European regulators and health experts have recommended a second booster dose of mRNA COVID-19 vaccines for people between 60 and 79 years of age and for vulnerable people with medical conditions, as Moderna Inc. filed fresh data from its omicron subvariant-adapted shot.
The U.S. FDA’s guidance to COVID-19 vaccine manufacturers, announced June 30, that they should develop modified bivalent boosters that include an omicron BA.4/5 spike protein component marks the beginning of a new era in the pandemic in which manufacturers are no longer driving the development of the vaccines.
Given that Novavax Inc.’s COVID-19 vaccine will be a latecomer to the U.S. scene if it gets FDA authorization, it’s been cast in a supporting role to the lead being played by the mRNA vaccines from Moderna Inc. and Pfizer Inc.-Biontech SE. But the data presented at the June 28 Vaccines and Related Biologic Products Advisory Committee meeting suggest the Novavax adjuvanted protein vaccine may have the chops to take on a larger role in taming the pandemic.
COVID-19 boosters for the fall should contain an omicron component, the FDA’s Vaccines and Related Biologic Products Advisory Committee (VRBPAC) said June 28, voting 19-2 to make that recommendation.
