“Brave”? That talked about non clinical (in vitro) work. The only reason the drug was ever discussed is that it long previously (pre Covid) had shown antiviral behavior in vitro that did not appear in vivo. So this article merely reported an unsurprising result.
The appearance of effects in vitro that do not appear in vivo is unfortunately extremely common.
The appearance of effects in vitro that do not appear in vivo is unfortunately extremely common.