When it comes to trials of any drug, size matters, potentially giving the World Health Organization's (WHO) gloomy verdict on Gilead Sciences' COVID-19 treatment remdesivir an edge over the company's ...
A top U.S. scientist overseeing COVID-19 vaccine trials expects a large U.S. study to determine how effective AstraZeneca's experimental inoculation is, following perplexing results from other trials ...