Just to make this clear and from your expert opinion as a pharmacist (working in the drug development/research field I assume): Are you saying that hydroxychloroquine has been proved completely useless as a treatment in the early stages of covid-19 infection (as the graph you posted would imply even if the conditions and small sample are far from ideal) or only that the associated risks could exceed its possible benefits?

Or maybe you are just saying that right now there is not ANY proper study that would be enough to show the usefulness of it in treatment covid-19 even if it is already being widely used in many hospitals worldwide (where supplies allow which is the main problem they are complaining about)?