Chloroquine (not AFAIK hydroxychloroquine) has been made available to doctors (and therefore patients) through "Compassionate Use." This means that doctors can

Chloroquine (not AFAIK hydroxychloroquine) has been made available to doctors (and therefore patients) through "Compassionate Use." This means that doctors can prescribe chloroquine to patients before and outside of a clinical trial. I suspect many will take the chance. In effect, the US will be conducting a large-scale, semi-controlled clinical study on a drug with a significant side effect profile in the midst of the worst pandemic in 100 years.