The effect of tocilizumab on severe COVID-19 infection: Review of current evidence.
2021
The COVID-19 outbreak that spread in December 2019 has caused the death of millions of people in a short time. Many studies published recently have shown that many cytokines (interleukin (IL) IL-1, IL-2, IL-6, TNF and IFN-) are significantly increased in COVID-19 patients with pneumonia, and especially IL-6 in combination with other cytokines has shown to be the main cause of the cytokine storm. Since IL-6 level is associated with clinical worsening in COVID-19 patients, anti-IL-6 therapy is seen as a promising treatment. Tocilizumab, a widely used IL-6 antagonist, was approved by the FDA in 2017 for Cytokine Storm Syndrome (CSS). Its addition to the treatment in COVID19 patients with increased blood IL-6 levels and oxygen saturation.
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