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Drug Discovery and Development

Moderna says bivalent COVID-19 boosters could offer more robust protection against variants 

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ModernaModerna (Nasdaq:MRNA) announced that its first bivalent booster vaccine candidate, mRNA-1273.211, offered superior protection against SARS-CoV-2 variants of concern compared with its first-gen mRNA-1273 vaccine.

A 50-µg booster of the mRNA-1273.211 vaccine offered protection against the beta, delta and omicron variants for six months and appeared to provide similar tolerability to the FDA-approved mRNA-1273 vaccine.

The company continues to develop a vaccine known as mRNA-1273.214 with more omicron-specific mutations. That vaccine candidate is now in a Phase 2/3 clinical trial. The company expects data from that trial to be available in the second quarter.

Moderna has published data related to the mRNA-1273.211 candidate as a preprint study in Research Square.

The company continues to bet that its bivalent booster candidate, mRNA-1273.214, will find use as a booster in autumn 2022 in the Northern Hemisphere.

In any event, the mRNA-1273.211 booster dose led to a 2.20-fold and 2.15-fold boost in neutralizing antibody titers against omicron compared to the mRNA-1273 booster dose at one month and six months, respectively.

Pfizer and BioNTech are also working on next-gen COVID-19 vaccine candidates. In February, BioNTech CEO Ugur Sahin noted that it had encountered a delay in developing an omicron-specific COVID-19 vaccine candidate.

Filed Under: clinical trials, Drug Discovery, Infectious Disease
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About The Author

Brian Buntz

As the pharma and biotech editor at WTWH Media, Brian has almost two decades of experience in B2B media, with a focus on healthcare and technology. While he has long maintained a keen interest in AI, more recently Brian has made making data analysis a central focus, and is exploring tools ranging from NLP and clustering to predictive analytics.

Throughout his 18-year tenure, Brian has covered an array of life science topics, including clinical trials, medical devices, and drug discovery and development. Prior to WTWH, he held the title of content director at Informa, where he focused on topics such as connected devices, cybersecurity, AI and Industry 4.0. A dedicated decade at UBM saw Brian providing in-depth coverage of the medical device sector. Engage with Brian on LinkedIn or drop him an email at bbuntz@wtwhmedia.com.

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