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.
It’s a step forward and a step back at Pfizer Inc. Even as Pfizer and its partner Biontech SE finished filing an emergency use authorization application with the U.S. FDA seeking to field an updated booster dose of their omicron COVID vaccine, the regulator has made a request of its own, for more data on the company's oral antiviral, Paxlovid (nirmatrelvir + ritonavir), for treating COVID-19. An Aug. 5, 2022, letter from the FDA stipulates post-EUA requirements for Paxlovid, including that Pfizer conduct a trial in patients with a relapse of COVID symptoms, longhand for a “rebound,” after an initial Paxlovid treatment course.
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.
Curevac NV has filed a patent lawsuit against fellow German mRNA pioneer Biontech SE claiming that the latter firm’s COVID-19 vaccine, Comirnaty, infringes its intellectual property.
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.
Pfizer Inc. and Biontech SE have signed a deal with the U.S. government to supply up to 300 million doses of COVID-19 vaccines in a deal worth more than $3.2 billion. Depending on the U.S. FDA, the vaccine doses fulfilling the order may include the companies’ omicron-adapted candidate, which they reported June 25 demonstrated a high immune response against the omicron BA.1 subvariant of SARS-CoV-2, when given as a fourth booster.
Instead of “Mother, may I” for COVID-19 vaccines for children 6 months through 5 years of age, the U.S. CDC is saying the correct response is “I should.” That was the recommendation June 18 from the CDC’s Advisory Committee on Immunization Practices. CDC Director Rochelle Walensky wasted no time in endorsing the recommendation, which came just a day after the FDA authorized the vaccines from Moderna Inc. and Pfizer Inc.-Biontech SE for babies, toddlers and preschoolers.
Just days after U.S. FDA advisors unanimously backed use of both the Moderna Inc. and Pfizer Inc.-Biontech SE COVID-19 vaccines in children 6 months and older, the FDA has expanded emergency use authorizations for the products. Availability could follow as soon as June 21, after a meeting of the CDC’s ongoing Advisory Committee on Immunization Practices, wraps up June 18.
