Appropriate use of tocilizumab in COVID-19 infection

Objective: This study aimed to describe the effectiveness and optimum use of tocilizumab (TCZ) treatment by the support of clinical, laboratory and radiologic observations. Methods: All patients were followed up in the hospital with daily interleukin-6 (IL-6), C-reactive protein (CRP), ferritin, d-d...

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Main Authors: Şiran Keske, Süda Tekin, Bilgin Sait, Pelin İrkören, Mahir Kapmaz, Cansu Çimen, Semra Uğur, İrfan Çelebi, Veli Oğuzalp Bakır, Erhan Palaoğlu, Evren Şentürk, Benan Çağlayan, Nahit Çakar, Levent Tabak, Önder Ergönül
Format: Article
Language:English
Published: Elsevier 2020-10-01
Series:International Journal of Infectious Diseases
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1201971220305804
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author Şiran Keske
Süda Tekin
Bilgin Sait
Pelin İrkören
Mahir Kapmaz
Cansu Çimen
Semra Uğur
İrfan Çelebi
Veli Oğuzalp Bakır
Erhan Palaoğlu
Evren Şentürk
Benan Çağlayan
Nahit Çakar
Levent Tabak
Önder Ergönül
author_facet Şiran Keske
Süda Tekin
Bilgin Sait
Pelin İrkören
Mahir Kapmaz
Cansu Çimen
Semra Uğur
İrfan Çelebi
Veli Oğuzalp Bakır
Erhan Palaoğlu
Evren Şentürk
Benan Çağlayan
Nahit Çakar
Levent Tabak
Önder Ergönül
author_sort Şiran Keske
collection DOAJ
description Objective: This study aimed to describe the effectiveness and optimum use of tocilizumab (TCZ) treatment by the support of clinical, laboratory and radiologic observations. Methods: All patients were followed up in the hospital with daily interleukin-6 (IL-6), C-reactive protein (CRP), ferritin, d-dimer, full blood count, and procalcitonin. Thoracic computed tomography (CT) was performed on admission, when oxygen support was necessary, and seven days after TCZ started. Disease course of the patients was grouped as severe or critical, according to their clinical, laboratory and radiologic evaluations. Results: Forty-three patients were included: 70% were male; the median age was 64 years (minimum–maximum: 27–94); and six (14%) patients died. The median duration of oxygen support before the onset of TCZ was shorter among the severe patient group than the critical patient group (1 vs. 4 days, p <  0.001). Three cases of 21 (14%) who received TCZ in the ward were transferred to ICU, and none of them died. The levels of IL-6, CRP, ferritin, d-dimer, and procalcitonin were significantly lower in the severe cases group than the critical cases group (p =  0.025, p =  0.002, p =  0.008, p =  0.002, and p =  0.001, respectively). Radiological improvement was observed in severe cases on the seventh day of TCZ. Secondary bacterial infection was detected in 41% of critical cases, but none of the severe ones. Conclusion: Earlier use of TCZ in COVID-19 infection was beneficial for survival, length of hospitalization and duration of oxygen support. The recommendation for administration of TCZ was based on an increase in requirement of oxygen support, progression in thoracic CT, and elevation of inflammation markers, including IL-6, CRP, ferritin, and d-dimer, and decrease in % lymphocytes.
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spelling doaj.art-f356e5647f824bad8a78256b9bf4195b2022-12-22T00:33:28ZengElsevierInternational Journal of Infectious Diseases1201-97122020-10-0199338343Appropriate use of tocilizumab in COVID-19 infectionŞiran Keske0Süda Tekin1Bilgin Sait2Pelin İrkören3Mahir Kapmaz4Cansu Çimen5Semra Uğur6İrfan Çelebi7Veli Oğuzalp Bakır8Erhan Palaoğlu9Evren Şentürk10Benan Çağlayan11Nahit Çakar12Levent Tabak13Önder Ergönül14American Hospital, Department of Infectious Diseases and Clinical Microbiology, Istanbul, TurkeyKoç University, School of Medicine, Department of Infectious Diseases and Clinical Microbiology, Istanbul, TurkeyAmerican Hospital, Department of Internal Medicine, Istanbul, TurkeyKoç University, School of Medicine, Department of Infectious Diseases and Clinical Microbiology, Istanbul, TurkeyKoç University, School of Medicine, Department of Infectious Diseases and Clinical Microbiology, Istanbul, TurkeyAmerican Hospital, Department of Infectious Diseases and Clinical Microbiology, Istanbul, TurkeyKoç University, School of Medicine, Department Anesthesiology &amp; Intensive Care Unit, Istanbul, TurkeyAmerican Hospital, Department of Radiology and Beykent University School of Medicine, TurkeyKoç University, College of Engineering, Department of Industrial Engineering, Istanbul, TurkeyAmerican Hospital, Clinical Laboratory, Istanbul, TurkeyKoç University, School of Medicine, Department Anesthesiology &amp; Intensive Care Unit, Istanbul, TurkeyKoç University, School of Medicine, Department of Chest Diseases, Istanbul, TurkeyKoç University, School of Medicine, Department Anesthesiology &amp; Intensive Care Unit, Istanbul, TurkeyKoç University, School of Medicine, Department of Chest Diseases, Istanbul, TurkeyKoç University, School of Medicine, Department of Infectious Diseases and Clinical Microbiology, Istanbul, Turkey; Corresponding author.Objective: This study aimed to describe the effectiveness and optimum use of tocilizumab (TCZ) treatment by the support of clinical, laboratory and radiologic observations. Methods: All patients were followed up in the hospital with daily interleukin-6 (IL-6), C-reactive protein (CRP), ferritin, d-dimer, full blood count, and procalcitonin. Thoracic computed tomography (CT) was performed on admission, when oxygen support was necessary, and seven days after TCZ started. Disease course of the patients was grouped as severe or critical, according to their clinical, laboratory and radiologic evaluations. Results: Forty-three patients were included: 70% were male; the median age was 64 years (minimum–maximum: 27–94); and six (14%) patients died. The median duration of oxygen support before the onset of TCZ was shorter among the severe patient group than the critical patient group (1 vs. 4 days, p <  0.001). Three cases of 21 (14%) who received TCZ in the ward were transferred to ICU, and none of them died. The levels of IL-6, CRP, ferritin, d-dimer, and procalcitonin were significantly lower in the severe cases group than the critical cases group (p =  0.025, p =  0.002, p =  0.008, p =  0.002, and p =  0.001, respectively). Radiological improvement was observed in severe cases on the seventh day of TCZ. Secondary bacterial infection was detected in 41% of critical cases, but none of the severe ones. Conclusion: Earlier use of TCZ in COVID-19 infection was beneficial for survival, length of hospitalization and duration of oxygen support. The recommendation for administration of TCZ was based on an increase in requirement of oxygen support, progression in thoracic CT, and elevation of inflammation markers, including IL-6, CRP, ferritin, and d-dimer, and decrease in % lymphocytes.http://www.sciencedirect.com/science/article/pii/S1201971220305804TocilizumabCOVID-19CytokinesInterleukin-6Therapy
spellingShingle Şiran Keske
Süda Tekin
Bilgin Sait
Pelin İrkören
Mahir Kapmaz
Cansu Çimen
Semra Uğur
İrfan Çelebi
Veli Oğuzalp Bakır
Erhan Palaoğlu
Evren Şentürk
Benan Çağlayan
Nahit Çakar
Levent Tabak
Önder Ergönül
Appropriate use of tocilizumab in COVID-19 infection
International Journal of Infectious Diseases
Tocilizumab
COVID-19
Cytokines
Interleukin-6
Therapy
title Appropriate use of tocilizumab in COVID-19 infection
title_full Appropriate use of tocilizumab in COVID-19 infection
title_fullStr Appropriate use of tocilizumab in COVID-19 infection
title_full_unstemmed Appropriate use of tocilizumab in COVID-19 infection
title_short Appropriate use of tocilizumab in COVID-19 infection
title_sort appropriate use of tocilizumab in covid 19 infection
topic Tocilizumab
COVID-19
Cytokines
Interleukin-6
Therapy
url http://www.sciencedirect.com/science/article/pii/S1201971220305804
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