Pfizer says:
Pfizer's antiviral pill slashes risk of severe COVID-19 by 89%

Pfizer Inc's (PFE.N) experimental antiviral pill to treat COVID-19 cut by 89% the chance of hospitalization or death for adults at risk of severe disease, the company said on Friday.

Iran PressAmerica: The trial's results suggest that Pfizer's drug surpasses Merck & Co Inc's (MRK.N) pill, molnupiravir, which was shown last month to halve the chance of dying or being hospitalized for COVID-19 patients at high risk of serious illness.

Pfizer's pill, with the brand name Paxlovid, could secure US regulatory approval by the end of the year. Pfizer said it plans to submit interim trial results to the Food and Drug Administration (FDA) before the Nov. 25 US Thanksgiving holiday. The trial was stopped early due to its high success rate, Reuters reported.

Pfizer's pill is given in combination with an older antiviral called ritonavir. The treatment consists of three pills given twice daily. It has been in development for nearly two years.

The Pfizer and Merck pills are eagerly anticipated, with only limited options currently available for treating people sick with COVID-19. Full trial data is not yet available from either company.

Merck's pill was approved by British regulators in a world first on Thursday.

Even with the potential offered by the Pfizer and Merck pills, preventing COVID-19 infections through broad use of vaccines remains the best way to control a pandemic that has killed more than 5 million people worldwide, including more than 750,000 in the United States, infectious disease experts said.

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