It’s decision time for oral drugs that could help the world return to normal even in the midst of the COVID-19 pandemic. The U.K. already has granted emergency authorization to Merck & Co. Inc. and Ridgeback Biotherapeutics Inc.’s antiviral, Lagevrio (molnupiravir), and the EMA is expected to complete its evaluation of the oral drug within the next few weeks. In the U.S., the FDA could announce its decision on Lagevrio shortly after its Antimicrobial Drugs Advisory Committee weighs in Nov. 30 on emergency use authorization.
Just a day after the world's first approval of Merck & Co. Inc.'s oral antiviral for COVID-19 positioned it to offer a new way to keep Britons at high risk of severe disease out of the hospital, Pfizer Inc. is stopping a phase II/III trial of its oral antiviral, Paxlovid, early for "overwhelming efficacy" in a similar group. Interim results showed that combining the drug, also known as PF-07321332, with ritonavir reduced the risk of hospitalization or death for adults with mild to moderate COVID-19 but at high risk of severe disease by 89% vs. placebo.
A closely watched oral antiviral for the treatment of mild to moderate COVID-19 will soon be available in Britain after a conditional authorization by the U.K. Medicines and Healthcare products Regulatory Agency. Developed by Ridgeback Biotherapeutics Inc. and Merck & Co. Inc., the drug will be marketed as Lagevrio (molnupiravir) and made available via a national study this winter, the government said.