Hydroxychloroquine Use in Hospitalized Patients With COVID-19: Impact on Progression to Severe or Critical Disease

WellStar, NCT04429867, NCT04429867, Dec 2020

HCQ for COVID-19

1st treatment shown to reduce risk in March 2020, now with p < 0.0000000001 from 426 studies, used in 59 countries.

No treatment is 100% effective.
Protocols combine treatments.

Estimated 700 patient HCQ late treatment RCT with results not reported over 5 years after estimated completion.
37 HCQ RCTs have results missing long after expected1-37
The trials report a total of 20,499 patients, with 12 trials having actual enrollment of 3,639, and the remainder estimated.
WellStar et al., 7 Dec 2020, Double Blind Randomized Controlled Trial, placebo-controlled, trial NCT04429867 (history).
Late treatment
is less effective