Pfizer Confirms Paxlovid’s High Efficacy And Reassures On Omicron

89% Relative Risk Reduction Confirmed

While Merck & Co’s Lagevrio’s results declined after an interim readout, Pfizer’s oral COVID-19 candidate Paxlovid has maintained its strong performance in protecting high-risk patients from hospitalization or death.

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Pfizer's Paxlovid could have a big impact on COVID-19 hospitalizations and deaths once authorized around the world • Source: Alamy

Pfizer’s antiviral Paxlovid has confirmed its efficacy in high-risk people with COVID-19, posting final trial data showing it reduced the risk of hospitalization and death in infected patients at high risk for progression to severe illness by 89% compared with placebo.

The readout announced on 14 December matches the 89% risk reduction seen in the interim data released on 5 November,...

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