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Efficacy of Tocilizumab in Management of COVID-19 Patients Admitted to Intensive Care Units: A Multicenter Retrospective Cohort Study.

Hoda Younes IbrahemDoaa Hamdy AlyAhmed E Abou WardaRamadan Abdelmoez FarahatRaghda Mamdouh YoussefMona Hassan AbdelhamidHeba Ahmed GoudRana Ragab MohamedMenna Allah Y Nasr EldienFahad Obaid AlotaibiAbdulaziz Ibrahim AlzareaAbdullah Salah AlanaziNehal M EisaAbdelrahman Sh Refaee
Published in: Medicina (Kaunas, Lithuania) (2022)
Background and Objectives : Mortality and illness due to COVID-19 have been linked to a condition known as cytokine release syndrome (CRS) that is characterized by excessive production of inflammatory cytokines, particularly interleukin-6 (IL-6). Tocilizumab (TCZ), a recent IL-6 antagonist, has been redeployed as adjunctive treatment for CRS remission in COVID-19 patients. This study aimed to determine the efficacy of Tocilizumab on patients' survival and the length of stay in hospitalized COVID-19 patients admitted to the intensive care unit. Methods : Between January 2021 and June 2021, a multicenter retrospective cohort study was carried out in six tertiary care hospitals in Egypt's governorate of Giza. Based on the use of TCZ during ICU stay, eligible patients were divided into two groups (control vs. TCZ). In-hospital mortality was the main outcome. Results : A total of 740 patient data records were included in the analysis, where 630 patients followed the routine COVID-19 protocol, while 110 patients received TCZ, need to different respiratory support after hospitalization, and inflammatory mediators such as C-reactive protein (CRP), ferritin, and Lactate dehydrogenase (LDH) showed a statistically significant difference between the TCZ group and the control group. Regarding the primary outcome (discharged alive or death) and neither the secondary outcome (length of hospital stay), there is no statistically significant difference between patients treated with TCZ and the control group. Conclusions : Our cohort of patients with moderate to severe COVID-19 did not assert a reduction in the risk of mortality or the length of stay (LOS) after TCZ administration.
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