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Pfizer/BioNTech say Omicron-based COVID shots improve response vs that variant

Stock Markets Jun 25, 2022 10:25AM ET
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© Reuters. FILE PHOTO: Doses of the Pfizer-BioNTech vaccine against the coronavirus disease (COVID-19) are pictured at a booster clinic for 12 to 17-year-olds in Lansdale, Pennsylvania, U.S., January 9, 2022. REUTERS/Hannah Beier

By Michael Erman

NEW YORK (Reuters) - Pfizer Inc (NYSE:PFE) and BioNTech SE (NASDAQ:BNTX) said on Saturday that a booster dose of updated versions of their COVID-19 vaccine, modified specifically to combat the Omicron coronavirus variant, generated a higher immune response against that variant.

Advisors to the U.S. Food and Drug Administration are scheduled to meet on Tuesday to discuss whether to update COVID-19 vaccines for the fall. The updated shots are likely to be redesigned to combat the Omicron variant of the coronavirus, experts say.

Pfizer and BioNTech said that 30 and 60 microgram doses of a shot targeting just the BA.1 Omicron subvariant that was circulating last winter elicited a 13.5 and 19.6-fold increase in neutralizing geometric titers against that subvariant. A version of the shot that contained both the redesigned vaccine and their original vaccine elicited a 9.1 and 10.9-fold increase, they said.

The results were from a trial of 1,234 people aged 56 or older. The shots were well-tolerated in participants, the companies said.

They said that early laboratory studies suggest that both Omicron-modified candidates neutralize the Omicron BA.4 and BA.5 subvariants that have been circulating more recently, though to a lesser extent than they do for BA.1, with titers approximately 3-fold lower. The companies say they are continuing to collect data on how well the boosters perform versus the more recently circulating strains.

Moderna (NASDAQ:MRNA) Inc has also made a redesigned vaccine targeting the BA.1 Omicron subvariant. The company said its updated vaccine worked well against more recent Omicron subvariants, and that it was moving forward with plans to ask regulators for approval.

Pfizer/BioNTech say Omicron-based COVID shots improve response vs that variant
 

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Comments (7)
ZS Beck
ZS Beck Jun 25, 2022 3:38PM ET
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They want to give vaccines at the end of time. They don't want the cure.
Flo Mrck
Flo Mrck Jun 25, 2022 3:10PM ET
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who still believe in this? 🤣
Jose Cabreja
Jose Cabreja Jun 25, 2022 12:47PM ET
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🤡🤡🤡
Jun 25, 2022 12:08PM ET
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Nobody cares about a mild flu with a 99.7% survival rate
germann muravchik
germann muravchik Jun 25, 2022 10:59AM ET
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stronger immune response - does it mean more antibodies? what happens once antibodies depleted? many people already had omicron. my personal experience and all people I know it was mild.
Amine Fourali
Amine Fourali Jun 25, 2022 10:35AM ET
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Do they really care…the only think they care about is make billions….
Tarek Ibrahim
Tarek Ibrahim Jun 25, 2022 10:31AM ET
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I think after 4 shots we have had enough of this Bull
 
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