3 Covid-19 Trials Have Been Paused for Safety. That’s a Good Thing.
This week, two high-profile, late-stage clinical trials — Johnson & Johnson’s test of a coronavirus vaccine and Eli Lilly’s study of a Covid-19 drug — were put on pause because of possible safety concerns. Just a month earlier, AstraZeneca’s vaccine trial was paused after two volunteers became seriously ill. Clinical trials experts said these delays…