Pfizer begins early-stage study of oral Covid-19 drug
The Pfizer candidate is a protease inhibitor that prevents the virus from replicating in cells.Reuters Pfizer has started an early-stage US trial of an oral Covid-19 antiviral therapy that could be prescribed to patients at the first sign of infection, the company said on Tuesday (March 23). The drugmaker, which developed the first authorised Covid-19 vaccine in...