Smaller biotech firms continue to bring new approaches against COVID-19 complications

In the search for therapeutics that are effective against Covid-19, four drugs have been tried with disappointing results. Remdesivir, hydroxychloroquine, lopinavir, and interferon regimens appeared to have little or no effect on hospitalized COVID-19, as indicated by overall mortality, initiation of ventilation and duration of hospital stay, according to a recent World Health Organization report.