Translation: If we don’t have anything that we know that it’s working, we’ll try something else, if only for the placebo effect. And this could be any of several dozen antiviral agents.
This is a far cry from “it’s efficient”. Not the same ballpark, not even the same country.
There is another complication that doesn’t fit twitter style. The disease changes with time. First week it’s an viral infection. In week 2 lungs get damaged and we start to see autoimmune reactions. In week 3, autoimmune reactions dominate. This means, an antiviral agent is most efficient in week 1. The problem? You don’t know who will get serious symptoms, you’d have to treat all confirmed corona cases as early as possible. It’s much too late to start treatment if a patient is in earshot of an intensive care unit. Apart from drug availability, this makes studies difficult: Ressources are limited, all patients in a study have to be hospitalized, even thouse without any symptoms – in a time where we literally need every hospital bed for severe cases.