Preclinical and randomized phase I studies of plitidepsin in adults hospitalized with COVID-19. - Varona JF; Landete P; Lopez-Martin JA; Estrada V; Paredes R; Guisado-Vasco P; Fernandez de Orueta L; Torralba M; Fortun J; Vates R; Barberan J; Clotet B; et al. (Life science alliance, 2022)