The Biden administration has announced that it’s investing another $500 million for the development of “next generation” COVID-19 vaccines and drugs because the existing ones don’t protect well against current strains of the virus.
“The Biden-Harris Administration is committed to keeping people safe from COVID-19,” HHS Secretary Xavier Becerra said in a statement. “By investing in next-generation vaccines and treatments, we can improve our ability to respond to new variants, reduce transmission, stop infections, and save lives.”
Around $30 million will go to three companies—CastleVax, Codagenix, and Gritstone Bio—to help their respective vaccine candidates with phase-two clinical trials.
All three vaccine selections use different technologies, including intranasal versions that HHS says have the potential to stop viruses at the site of infection, and a “self-amplifying mRNA” one that is hoped to generate a stronger immune response than current vaccines as the virus that causes COVID-19 continues to mutate.
Another $240 million is being earmarked for technologies that help with clinical trials, including cold-chain sample management, genomic sequencing, and increased laboratory capacity.
A further $241 million is being allocated for various other measures meant to help with preparedness for future COVID-19 outbreaks, including developing patches for vaccine delivery, mRNA-expressed monoclonal antibodies, and tissue chip platform technology.
Waning Vaccine Effectiveness
Protection from COVID-19 vaccines started to wane over time, even with the early strains of the virus.But as newer variants emerged, existing vaccines started to perform even worse—and wane even faster.
Effectiveness against hospitalization plunged to negative 8 percent for people who received one of the old COVID-19 vaccines, according to data from a hospital network run by the Centers for Disease Control and Prevention (CDC).
The data shows that a dose of one of the updated bivalent vaccines from Pfizer and Moderna raised the protection above zero (to 29 percent)—but then protection fell back to negative 8 percent after roughly three months.
Calls for New Vaccines
In light of waning vaccine effectiveness, U.S. health officials have said that new vaccine formulations are needed.“There appears to be an inverse relationship between the time since vaccination and vaccine effectiveness, such that bivalent COVID-19 vaccine effectiveness against Omicron sublineages appears to wane over time,” Food and Drug Administration (FDA) officials said in June 2023.
Existing vaccines were already updated in late 2022 to focus on existing virus variants, in hopes that they would do a better job of protecting people than the old vaccine formulations.
The FDA and other regulators have been moving toward a COVID-19 vaccination model similar to the one for flu vaccines, which involves regularly updated formulations to target newly emergent viral mutations.
However, virologist Dr. Robert Malone accused the FDA of having “gone rogue” by sacrificing its own rules and regulations with its recommendation for the updated vaccines, arguing that there’s only limited clinical trial data attesting to their efficacy and safety.
The FDA did not respond to a request for comment.