https://www.nytimes.com/interactive/2020/science/coronavirus-drugs-treatments.html

Not specifically mentioned, but related excerpts below. Was surprised they didn't even mention Synairgen.

TENTATIVE OR MIXED EVIDENCE EVIDENCE IN HUMANS
Cytokine Inhibitors
The body produces signaling molecules called cytokines to fight off diseases. Sometimes it produces too many, creating a so-called cytokine storm that can cause lethal levels of inflammation. Drugs known as cytokine inhibitors rein in cytokines. Researchers are investigating a number of these compounds to treat Covid-19. While some are showing genuine promise, others have yet to live up the claims made about them.

And

TENTATIVE OR MIXED EVIDENCE EVIDENCE IN CELLS AND ANIMALS
Recombinant ACE-2
To enter cells, the coronavirus must first unlock them — a feat it accomplishes by latching onto a human protein called ACE-2. Scientists have created artificial ACE-2 proteins which might be able to act as decoys, luring the coronavirus away from vulnerable cells. Recombinant ACE-2 proteins have shown promising results in experiments on cells and animals, but not yet in people.