Edit: Changed hydroxyquinone to the correct hydroxychloroquine.
Edit: Changed hydroxyquinone to the correct hydroxychloroquine.
To give an answer to this endless debate, a proper, randomized clinical trial is needed. And the conditions set correctly, too: lopinavir and ritonavir were, per NEJM, not successful, but a later study in Lancet showed that administration at earlier time points (within 7 days of symptom onset) might be working and needs more investigation.
I know Novartis is running a trial, and so is U of Minnesota[1] which has finally completed enrollment and will release results after peer review.
Oh, and more on topic, it looks like Twitter has blocked a legitimate page of the Canadian part of the same group of trials[2].
[2] https://twitter.com/DrToddLee/status/1261442201369939968