Moderna Seeks EUA for Omicron-targeting Booster

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A day after Pfizer/BioNTech announced their submission of an emergency use authorization (EUA) request for a modified Covid-19 booster vaccine, Moderna 8/23 says it has submitted an EUA for a similar BA.4/BA.5 Omicron-targeting bivalent booster vaccine, mRNA-1273.222. Moderna's submission is seeking its booster dose for adults 18 years of age and older, and is based on preclinical data and clinical trial data from the company’s BA.1 Omicron-targeting bivalent booster candidate, mRNA-1273.214.

The clinical data in the study mRNA-1273.214 met all primary endpoints, “including superior neutralizing antibody response against Omicron (BA.1) when compared to a 50 µg booster dose of mRNA-1273 in previously uninfected participants, as well as potent neutralizing antibody responses against the Omicron subvariants BA.4 and BA.5 compared to the currently authorized booster (mRNA-1273) regardless of prior infection status or age,” Moderna says.

 

The company says a Phase 2/3 trial for mRNA-1273.222 is currently underway. It also has rapidly scaled manufacturing to be ready, if authorized, to deliver doses next month.

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