key inclusion criteria: - hospitalized for covid-19 illness for ≤72 hours - positive sars-cov-2 test by standard rt-pcr assay or equivalent test - presence of moderate to severe clinical signs indicative of moderate or severe illness with covid19 prior to study treatment key

key inclusion criteria: - hospitalized for covid-19 illness for ≤72 hours - positive sars-cov-2 test by standard rt-pcr assay or equivalent test - presence of moderate to severe clinical signs indicative of moderate or severe illness with covid19 prior to study treatment key