The Food and Drug Administration (FDA) approved a new COVID-19 vaccine, but it is not recommending that people receive it, the agency’s top vaccine officials said on June 4.
“What we do is we make them available for patients to have a conversation with their doctor. But I can understand a 66-year-old who goes to see their doctor, and they may decide to do it or not do it; that’s their medical decision. FDA is granting a marketing authorization for that, but we are not in the business of making recommendations.”
Dr. Marty Makary, the FDA commissioner, said on social media platform X that the FDA’s job “is to review data and decide whether products are safe and effective.”
The COVID-19 vaccines were originally marketed as one- or two-dose regimens, with no mention of potential boosting. When evidence emerged showing that the effects of the vaccines waned over time, the FDA cleared boosters.
The agency later authorized or approved updated formulations of the vaccines in a bid to better target newer variants. They relied primarily on animal and immunogenicity data.
Prasad and Makary announced in May that the FDA would not approve COVID-19 vaccines for Americans who are neither elderly nor have one of the risk conditions, such as obesity, as defined by the CDC, unless manufacturers produced trial data showing that the vaccines were effective against clinical endpoints such as symptomatic COVID-19 among the healthy.
“The FDA can only approve products if it concludes, based on scientific evidence, the benefit-to-harm balance is favorable. And we simply need more data to have that confidence for younger individuals at low-risk of severe disease,” Prasad said at the time.
The FDA’s approval of Moderna’s new COVID-19 vaccine was based on data from a trial in which participants received either the new vaccine or Moderna’s already-available COVID-19 shot. The trial showed the new vaccine triggered non-inferior immune responses, according to data that Moderna provided to the FDA.
“They’re not going to go up against another Moderna product in this study. It’s Moderna vaccine against a saline placebo,” Prasad said. “We’re going to see all the adverse events in this study. We’re going to see whether or not it helps people, and what it does, and whether or not it’s working like we think it might be in 2025.”
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