I have to point out that the trial has no tie to OPK. I am only speculating a possible Covid19 play with OPK since they recently PRed FDA Authorizes OPKO Health Clinical Trial Evaluating RAYALDEE in COVID-19 Patients. The active ingredient for Rayaldee is Calcifediol. The only form of Calcifediol approved by FDA is Rayaldee. https://ih.advfn.com/stock-market/NASDAQ/opko-health-OPK/stock-news/82572234/fda-authorizes-opko-health-clinical-trial-evaluati