Nice find! And while it was published 6/3 and things may have slightly changed since, the last paragraph says they're just about to be done:

Quote:

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We’ll have initial randomized, placebo-controlled data by early July. We’ll see what happens then. I should also mention that the drug has now been given to over 900 patients without a discernible safety issue. The drug is extremely safe. And I believe very soon we’ll have the clinical data to show the world just how well it works in Covid-19.

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http://ft.floatinghomes.org/yellow-ferry-resi...-covid-19/