US FDA's decision to revoke the COVID-19 emergency use authorization for two anti-malarial drugs keeps with commissioner Hahn's stated goal of moving fast to tackle the pandemic, but shifting course as new data comes available. FDA cited new evidence as well as a reanalysis of the data it initially based the EUA on as reasons for pulling the authorization. Meanwhile, HHS Secretary Alex Azar appeared to equate the EUA revocation as opening the doors for broader use of the medicine, potentially undermining FDA's own communication on the drug, in yet another example of political leaders complicating the science and public health response to COVID-19.

Questions linger about the role the White House played in pushing the EUA, which comes with large product donations from Bayer and Sandoz that are expected to alleviate supply chain pressures for the drugs. 

US FDA/NIH smartphone app is intended to allow clinicians and others to talk about potential treatments for infectious diseases, but so far COVID-19-related activity has been limited.