Pfizer launches later-stage study of pill to treat COVID-19

Pfizer on Wednesday announced that it had initiated a later-stage clinical trial for a pill that could potentially treat COVID-19. If proven to be safe and effective, the drug could fill an unmet need for a widespread, easier-to-use treatment, as opposed to an infusion like remdesivir, another treatment. Pfizer is beginning a trial that will enroll 1,140 participants, the company said.