Moderna Announces Bivalent Booster mRNA-1273.214 Demonstrates Potent Neutralizing Antibody Response Against Omicron Subvariants BA.4 And BA.5
mRNA-1273.214 Exhibited a
Data Being Submitted to Regulators and for Peer Reviewed Publication
In today's data, mRNA-1273.214 boosted neutralizing titers against BA.4/BA.5 by 5.4-fold (95% CI: 5.0, 5.9) above baseline in all participants regardless of prior infection, and by 6.3-fold (95% CI: 5.7, 6.9) in the subset of seronegative participants. Neutralizing titers against BA.4/BA.5 were approximately 3-fold lower than previously reported neutralizing titers against BA.1. One month after an mRNA-1273.214 booster, neutralizing geometric mean titers (GMT) against BA.4/BA.5 were 941 (95% CI: 826, 1071) in all participants, and 727 (95% CI: 633, 836) in seronegative participants. For context, prior studies of a third dose of the prototype booster induced neutralizing GMT against BA.1 of 629 (95% CI: 526, 751) and against Delta of 828 (95% CI: 738, 928)[1]. A third dose of the prototype booster was shown to be effective against Delta and BA.1 infection and hospitalization in observational studies [2],[3].
"In the face of SARS-CoV-2's continued evolution, we are very encouraged that mRNA-1273.214, our lead booster candidate for the fall, has shown high neutralizing titers against the BA.4 and BA.5 subvariants, which represent an emergent threat to global public health," said
Today's data add to results shared earlier this month from the Company's ongoing Phase 2/3 study in approximately 800 participants. Previous results showed a 50 µg booster dose of mRNA-1273.214 met all pre-specified primary endpoints, including superiority in neutralizing antibody GMT against Omicron (BA.1) when compared to a 50 µg booster dose of the prototype booster (mRNA-1273). The bivalent booster was generally well tolerated, with a reactogenicity and safety profile that was consistent with the prototype booster.
The Company has already shared these data with regulators and is submitting a manuscript for peer reviewed publication.
About
In over 10 years since its inception,
Forward Looking Statements
This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, as amended, including regarding: the Company's development of a bivalent booster vaccine targeted at the Omicron variant of the SARS-CoV-2 virus (mRNA-1273.214); the ability of mRNA-1273.214 to trigger an antibody response against the Omicron subvariants BA.4 and BA.5; the Company's submission of data to regulators in support of authorization of mRNA-1273.214 as a fall booster; and the safety and tolerability profile of mRNA-1273.214. The forward-looking statements in this press release are neither promises nor guarantees, and you should not place undue reliance on these forward-looking statements because they involve known and unknown risks, uncertainties, and other factors, many of which are beyond
Moderna Contacts
Media:
617-800-3651
Vice President,
Chris.Ridley@modernatx.com
Investors:
Senior Vice President & Head of Investor Relations
617-209-5834
Lavina.Talukdar@modernatx.com
SOURCE:
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