Great summary of hydroxychloroquine clinical data so far.

My thoughts:

1/

There is a LOT more data (clinical, in vitro, long term safety profile, etc.) than ANY other drug being tried for COVID19.

MUCH more than Remdesivir! So don't bash it either. https://twitter.com/Dereklowe/status/1247190231503310848
2/

Kaletra, based on data we have seen so far, isn't promising at all, at least by itself (which is already a combo drug!)
3/

And don't get your hopes up for Remdesivir if you are pessimistic about hydroxychloroquine/Chloroquine

- IC50 from CoV2 infection assay is about the same

- 1st Remdesivir read out will be in mod/severe patients, who are probably too late for antivirals to do anything
4/

As some others point out, hydroxychloroquine gets partitioned in red blood cells. Works great for Malaria, but may not translate to CoV2.

I hope praying that remdesivir will work better because of this difference
5/

Frankly, it's much easier to bash these potential treatments from the comfort of your home than it is in the ICU.

If remdesivir fails and hcq fails. Doctors really have a blank sheet of paper.

Sure anti-IL-6 sees promising, but I just don't see that being widely available
6/

@Dereklowe mentioned effect size in his post. I agree that is probably the most important question here.

For anti-virals, single agents have a poor track record. HIV and HCV both required 3-drug combos until recently (now 2)

Q should be how do shoot for effect size?
7/

I think the mAbs and plasma will have great effect size. And hopefully vaccines. But realistically, we have to wait 12-18 months to have them widely available (in the best case scenario)
8/

In the mean time, we need to test combination approaches. That is the only sensible route in my opinion.
9/ Actually have 1 more thought.

Running a trial in ACUTE viral infection is EXTREMELY hard.

You need huge effect size, and you have a very narrow window to administer the drug.

Even if a drug WORKS, designing and running a trial that shows stat. sig is EXTREMELY challenging
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