Journals / Marmara Medical Journal / 2026 / Volume: 34 Issue: 2

Impact of tocilizumab on clinical outcomes in severe covid-19 patients and risk of secondary infection: A case-control study

Serra Ozel(Umraniye Training and Research Hospital)0000-0003-2111-1183
Fethi Gul(MARMARA UNIVERSITY)0000-0002-6426-6436
Can Ilgın(MARMARA UNIVERSITY)0000-0003-1751-8546
Luftiye Nilsun Altunal(Umraniye Training and Research Hospital)0000-0003-4794-9283
Mehtap Aydın(Umraniye Training and Research Hospital)0000-0003-4044-9366
Pages
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Publication Date
2021-05-31
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Conclusions: Tocilizumab does not provide a beneficial effect on MV requirement and mortality in severe COVID-19, and it does not increase the risk of secondary bacterial infection.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Objective: This study aimed to identify the effect of tocilizumab (TCZ) on clinical outcomes in severe COVID-19 patients.
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Key Findings & Data:Material and Methods: We included hospitalized COVID-19 patients with an initial WHO scale ≥4.
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Conclusion & Impact:Conclusions: Tocilizumab does not provide a beneficial effect on MV requirement and mortality in severe COVID-19, and it does not increase the risk of secondary bacterial infection.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:COVID-19 · IL-6 · SARS-CoV-2

Abstract

Objective: This study aimed to identify the effect of tocilizumab (TCZ) on clinical outcomes in severe COVID-19 patients. Material and Methods: We included hospitalized COVID-19 patients with an initial WHO scale ≥4. We matched the patients with baseline characteristics by using propensity scores. Then, we selected patients with C-reactive protein levels above 30 and showing an upward trend. We assessed the effect of TCZ in patients on clinical outcomes by using Mann – Whitney U and Chi-square tests. Results: Of 200 patients who had an initial WHO scale ≥ 4, 42 (21%) were given TCZ in addition to standard of care (SOC). Twentyfive patients (50%) needed mechanical ventilation (MV) in the TCZ group, compared with 35 (21%) of 158 patients with SOC (p<0.01). Nineteen (45%) and 37 (23%) patients died in 30 days in these groups, respectively (p <0.01). The secondary infection rate was significantly higher in the TCZ group (p=0.004). However, no difference was observed in all these parameters in the propensity score-matched cohort (14 patients in TCZ and 14 in the SOC group) (p=0.45, 0.45, 1.0 respectively). Conclusions: Tocilizumab does not provide a beneficial effect on MV requirement and mortality in severe COVID-19, and it does not increase the risk of secondary bacterial infection.

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Cite This Article

Sengel, B. E., Ozel, S., Gul, F., Ilgın, C., Tıgen, E. T., Altunal, L. N., Kabadayı, F., Sılı, U., Aydın, M., Odabası, Z., Cınel, I., Korten, V. (2021). Impact of tocilizumab on clinical outcomes in severe covid-19 patients and risk of secondary infection: A case-control study. Marmara Medical Journal, Volume: 34 Issue: 2. https://doi.org/10.5472/marumj.942700

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