COVID-19(17) IMPROVE(8) therapeutic(8) ARDS, acute respiratory distress syndrome(7) Inflammation(7) SARS-CoV-2(7) pandemic(6) COVID-19, Coronavirus disease 2019(6) SARS-CoV, severe acute respiratory syndrome coronavirus(6) Treatment(6) coronavirus(6) therapy(6) approved(6) Patient(5) LPS, lipopolysaccharide(5) Nafamostat mesylate(4) expression(4) unique(4) ICU, Intensive care unit(4) Drug repurposing(4) ACE2, angiotensin-converting enzyme 2(4) IBD, Inflammatory bowel disease(4) HIV, Human immunodeficiency virus(4) SARS-CoV-2, Severe acute respiratory syndrome coronavirus 2(4) overcome(4) Vaccine(4) functional(4) drug(4) TNF, Tumor Necrosis Factor(4) Efficacy(4)