OPK starts COVID-19 phase-2 trial of Rayaldee (calcifediol) in 600 patients—see #msg-158040714 for background on why I’m skeptical of the data from a small IST in Spain: https://www.globenewswire.com/news-release/2020/09/15/2093569/0/en/OPKO-Health-Initiates-Clinical-Trial-of-RAYALDEE-in-COVID-19-Patients.html