Pfizer begins trial of oral antiviral drug for prevention of Covid-19 in adults
A total of 2,660 healthy adult participants aged 18 and older will be randomly assigned to receive PF-07321332/ritonavir or placebo. (Representative Image) Pfizer Inc has started a large study testing its investigational oral antiviral drug to prevent Covid-19 infection among those already exposed to the virus. The Phase 2/3 trial by Pfizer in of the … Read more