Pfizer begins study of oral drug for prevention of Covid-19
September 27 2021 03:51 PM
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Reuters

Pfizer Inc said on Monday it has started a mid-to-late-stage study testing its investigational oral antiviral drug for the prevention of Covid-19 infection among those who have been exposed to the virus.

The company and its rivals, including U.S.-based Merck & Co Inc and Swiss pharmaceutical Roche Holding AG, have been racing to develop the first antiviral pill for Covid-19.

Pfizer said it would study the drug, PF-07321332, in up to 2,660 healthy adult participants aged 18 and older who live in the same household as an individual with a confirmed symptomatic Covid-19 infection.

The trial would test PF-07321332 with a low dose of ritonavir, an older medication widely used in combination treatments for HIV infection.

Merck and partner Ridgeback Biotherapeutics said earlier this month they had begun enrolling patients in a late-stage trial of their experimental drug molnupiravir for prevention of Covid-19 infection.

Pfizer had also said earlier this month it started a mid-to-late-stage trial of PF-07321332 for the treatment of Covid-19 in non-hospitalized, symptomatic adult patients.

 



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