Flipped Inflammatory Time and the Role of Antibodies Against Severe Acute Respiratory Syndrome Coronavirus 2: Optimizing Tocilizumab Against Coronavirus Disease 2019.

Use of interleukin (IL-6) inhibitors has become one of the most complicated clinical issues in treating coronavirus disease 2019 (COVID-19). Recently, randomized open-label platform trials have found that IL-6 inhibitors have a beneficial effect on mortality in severe COVID-19. However, several questions arise around their mechanism of action in this disease, as well as how, when, and at which dose they should be used.