Abstract
Chest CT scan of a 26-year-old Honduran male with COVID-19 and moderate pneumonia (A, arrows). Due to tocilizumab shortage, compassionate use of methotrexate (MTX) was done in a single 25mg IV dose by day 11 of disease, under monitoring by an ad-hoc ethics commission. Two weeks after initial clinical improvement, he developed acute myocarditis with atrioventricular block (B). Remission occurred after a second dose of the drug (C, D). MTX is well known by its use in several oncological and autoimmune conditions, and by its potential in reducing phosphorylation of JAK1/STAT3 and IL6 expression. Several reports suggest that MTX could be repurposed as therapy for the cytokine storm due to SARS-CoV-2This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
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