A Systematic Review on the Efficacy and Safety of Chloroquine for the Treatment of COVID-19

Cortegiani et al., J. Crit. Care, June 2020, 57:279-283, doi:10.1016/j.jcrc.2020.03.005, Epub Mar 10, 2020

Mar 2020

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Review of six articles and 23 ongoing clinical trials in China recommending research and clinical use adhering to MEURI.

7 meta analyses show significant improvements with hydroxychloroquine for mortality Landsteiner de Sampaio Amêndola, Risch, Risch (B), Stricker, hospitalization Landsteiner de Sampaio Amêndola, recovery Prodromos, combined death/hospitalization/cases Ladapo, and cases García-Albéniz.

Currently there are 38 HCQ for COVID-19 early treatment studies, showing 72% lower mortality [59‑81%], 67% lower ventilation [-710‑99%], 28% lower ICU admission [-17‑55%], and 41% lower hospitalization [28‑51%].

1. García-Albéniz et al., Systematic review and meta-analysis of randomized trials of hydroxychloroquine for the prevention of COVID-19, European Journal of Epidemiology, doi:10.1007/s10654-022-00891-4.springer.com, doi.org.

2. Ladapo et al., Randomized Controlled Trials of Early Ambulatory Hydroxychloroquine in the Prevention of COVID-19 Infection, Hospitalization, and Death: Meta-Analysis, medRxiv, doi:10.1101/2020.09.30.20204693.medrxiv.org, doi.org.

3. Landsteiner de Sampaio Amêndola et al., COVID-19 Infection in Rheumatic Patients on Chronic Antimalarial Drugs: A Systematic Review and Meta-Analysis, Journal of Clinical Medicine, doi:10.3390/jcm11226865.mdpi.com, doi.org.

4. Prodromos et al., Hydroxychloroquine is effective, and consistently so used early, for Covid-19: A systematic review, New Microbes and New Infections, doi:10.1016/j.nmni.2020.100776.sciencedirect.com, doi.org.

5. Risch, H., Early Outpatient Treatment of Symptomatic, High-Risk Covid-19 Patients that Should be Ramped-Up Immediately as Key to the Pandemic Crisis, American Journal of Epidemiology, kwaa093, 27 May 2020, doi:10.1093/aje/kwaa093.oup.com, doi.org.

6. Risch (B), H., Response to: “Early Outpatient Treatment of Symptomatic, High-Risk Covid-19 Patients” and “Re: Early Outpatient Treatment of Symptomatic, High-Risk Covid-19 Patients that Should be Ramped-Up Immediately as Key to the Pandemic Crisis”, American Journal of Epidemiology, July 20, 2020, doi:10.1093/aje/kwaa152.oup.com, doi.org.

7. Stricker et al., Hydroxychloroquine Pre-Exposure Prophylaxis for COVID-19 in Healthcare Workers from India: A Meta-Analysis, Journal of Infection and Public Health, doi:10.1016/j.jiph.2021.08.001.sciencedirect.com, doi.org.

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Cortegiani et al., 10 Mar 2020, peer-reviewed, 5 authors.

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A systematic review on the efficacy and safety of chloroquine for the treatment of COVID-19

Andrea Cortegiani, Giulia Ingoglia, Mariachiara Ippolito, Antonino Giarratano, Sharon Einav

Journal of Critical Care, doi:10.1016/j.jcrc.2020.03.005

Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre -including this research content -immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active. A systematic review on the efficacy and safety of chloroquine for the treatment of COVID-19

Authors' contribution AC conceived the content, retrieved the data, wrote the manuscript and approved the final version. MI retrieved the data, wrote the manuscript and approved the final version. GI retrieved the data, wrote the manuscript and approved the final version. AG conceived the content, helped in data extraction, revised the manuscript critically and approved the final version. SE conceived the content, helped in data extraction, wrote the manuscript and approved the final version. Appendix A. Supplementary data Supplementary data to this article can be found online at https://doi. org/10.1016/j.jcrc.2020.03.005.

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Colson, Rolain, Raoult, Chloroquine for the 2019 novel coronavirus SARS-CoV-2, Int J Antimicrob Agents

Gao, Tian, Yang, Breakthrough: chloroquine phosphate has shown apparent efficacy in treatment of COVID-19 associated pneumonia in clinical studies, Biosci Trends, doi:10.5582/bst.2020.01047

Guan, Ni, Hu, Liang, Ou et al., Clinical Characteristics of Coronavirus Disease 2019 in China, N Engl J Med, doi:10.1056/NEJMoa2002032

Huang, Wang, Li, Ren, Zhao et al., Clinical features of patients infected with 2019 novel coronavirus in Wuhan, China, Lancet

Lenk, Duttge, Ethical and legal framework and regulation for off-label use: European perspective, Ther Clin Risk Manag

Savarino, Boelaert, Cassone, Majori, Cauda, Effects of chloroquine on viral infections: an old drug against today's diseases?, Lancet Infect Dis

Wang, Cao, Zhang, Yang, Liu et al., Remdesivir and chloroquine effectively inhibit the recently emerged novel coronavirus (2019-nCoV) in vitro, Cell Res, doi:10.1038/s4142202002820

Wang, Hu, Hu, Zhu, Liu et al., Clinical characteristics of 138 hospitalized patients with 2019 novel coronavirus-infected pneumonia in, doi:10.1001/jama.2020.1585

Wu, Mcgoogan, Characteristics of and important lessons from the coronavirus disease, doi:10.1001/jama.2020.2648

Yang, Yu, Xu, Shu, Xia et al., Clinical course and outcomes of critically ill patients with SARS-CoV-2 pneumonia in Wuhan, China: a single-centered, retrospective, observational study, Lancet Respir Med, doi:10.1016/S2213-2600(20)30079-5

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