Israeli-founded SaNOtize, has been granted approval by Health Canada to conduct a Phase II trial for its antiviral early treatment against COVID-19. The Nitric Oxide Releasing Solution (NORS) was effective in the lab against influenza A, hCoV-OC43 and H1N1 (swine flu).
http://nocamels.com/2020/04/sanotize-phase-ii-trial-nasal-covid-19-therapy/