A Randomized Trial of Hydroxychloroquine as Postexposure Prophylaxis for Covid-19.
David R. Boulware,Matthew F Pullen,Ananta S. Bangdiwala,Katelyn A Pastick,Sarah M Lofgren,Elizabeth C Okafor,Caleb P Skipper,Alanna A Nascene,Melanie R. Nicol,Mahsa Abassi,Nicole W. Engen,Matthew P. Cheng,Derek LaBar,Sylvain A. Lother,Lauren J. MacKenzie,Glen Drobot,Nicole Marten,Ryan Zarychanski,Lauren E. Kelly,Ilan S. Schwartz,Emily G. McDonald,Radha Rajasingham,Todd C. Lee,Kathy H. Hullsiek +23 more
TLDR
After high-risk or moderate-risk exposure to Covid-19, hydroxychloroquine did not prevent illness compatible with Covid -19 or confirmed infection when used as postexposure prophylaxis within 4 days after exposure.Abstract:
Background Coronavirus disease 2019 (Covid-19) occurs after exposure to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). For persons who are exposed, the standard of care is o...read more
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Features, Evaluation and Treatment Coronavirus (COVID-19)
TL;DR: The effects of the epidemic caused by the new CoV has yet to emerge as the situation is quickly evolving, and world governments are at work to establish countermeasures to stem possible devastating effects.
Journal ArticleDOI
Hydroxychloroquine with or without Azithromycin in Mild-to-Moderate Covid-19.
Alexandre Biasi Cavalcanti,Fernando G. Zampieri,Regis Goulart Rosa,Luciano Cesar Pontes Azevedo,Viviane C Veiga,Alvaro Avezum,Lucas P. Damiani,Aline Marcadenti,Leticia Kawano-Dourado,Thiago Lisboa,Debora L. M. Junqueira,Pedro Gabriel Melo de Barros e Silva,Lucas Tramujas,Erlon Oliveira de Abreu-Silva,Lígia Nasi Laranjeira,Aline T. Soares,Leandro S. Echenique,Adriano José Pereira,Flávio Geraldo Resende Freitas,Otavio Gebara,Vicente C.S. Dantas,Remo H.M. Furtado,Eveline P. Milan,Nicole A. Golin,Fábio F. Cardoso,Israel Silva Maia,Conrado R. Hoffmann Filho,Adrian P.M. Kormann,Roberto Bleuel Amazonas,Monalisa Fernanda Bocchi de Oliveira,Ary Serpa-Neto,Maicon Falavigna,Renato D. Lopes,Flávia Ribeiro Machado,Otavio Berwanger +34 more
TL;DR: Among patients hospitalized with mild-to-moderate Covid-19, the use of hydroxychloroquine, alone or with azithromycin, did not improve clinical status at 15 days as compared with standard care.
Journal ArticleDOI
Drug treatments for covid-19: living systematic review and network meta-analysis.
Reed A C Siemieniuk,Jessica J Bartoszko,Long Ge,Dena Zeraatkar,Ariel Izcovich,Elena Kum,Hector Pardo-Hernandez,Anila Qasim,Juan Pablo Diaz Martinez,Bram Rochwerg,Francois Lamontagne,Mi Ah Han,Qin Liu,Arnav Agarwal,Arnav Agarwal,Thomas Agoritsas,Derek K. Chu,Rachel Couban,Ellen Cusano,Andrea Darzi,Tahira Devji,Bo Fang,Carmen Fang,Signe Flottorp,Signe Flottorp,Farid Foroutan,Farid Foroutan,Maryam Ghadimi,Diane Heels-Ansdell,Kimia Honarmand,Liangying Hou,Xiaorong Hou,Quazi Ibrahim,Assem M. Khamis,Bonnie Lam,Mark Loeb,Maura Marcucci,Shelley McLeod,Sharhzad Motaghi,Srinivas Murthy,Reem A. Mustafa,Reem A. Mustafa,John Neary,Gabriel Rada,Irbaz Bin Riaz,Behnam Sadeghirad,Nigar Sekercioglu,Lulu Sheng,Ashwini Sreekanta,Charlotte Switzer,Britta Tendal,Lehana Thabane,George Tomlinson,Tari Turner,Per Olav Vandvik,Robin W.M. Vernooij,Andrés Viteri-García,Ying Wang,Liang Yao,Zhikang Ye,Gordon H Guyatt,Romina Brignardello-Petersen +61 more
TL;DR: Glucocorticoids probably reduce mortality and mechanical ventilation in patients with covid-19 compared with standard care and the effectiveness of most interventions is uncertain because most of the randomised controlled trials so far have been small and have important study limitations.
Journal ArticleDOI
COVID-19-neutralizing antibodies predict disease severity and survival.
Wilfredo F. Garcia-Beltran,Evan C. Lam,Michael G Astudillo,Diane Yang,Tyler E. Miller,Jared Feldman,Blake M. Hauser,Timothy M. Caradonna,Kiera L. Clayton,Adam Nitido,Mandakolathur R. Murali,Galit Alter,Richelle C. Charles,Anand S. Dighe,John A. Branda,Jochen K. Lennerz,Daniel Lingwood,Aaron G. Schmidt,A. John Iafrate,Alejandro B. Balazs +19 more
TL;DR: It is found that severe cases resulting in intubation or death exhibited increased inflammatory markers, lymphopenia, pro-inflammatory cytokines, and high anti-receptor binding domain (RBD) antibody levels, highlighting the importance of neutralizing humoral immunity on disease progression and the need to develop broadly protective interventions to prevent future coronavirus pandemics.
Journal ArticleDOI
Immunity, endothelial injury and complement-induced coagulopathy in COVID-19.
Luca Perico,Ariela Benigni,Federica Casiraghi,Lisa F. P. Ng,Lisa F. P. Ng,Laurent Rénia,Giuseppe Remuzzi,Giuseppe Remuzzi +7 more
TL;DR: Current understanding of the pathogenic mechanisms involved in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and the progression of coronav virus disease 2019 (COVID-19) is described, focusing on the immunological hyper-response and the induction of widespread endothelial damage, complement-associated blood clotting and systemic microangiopathy, as well as the effects of these processes on the kidney.
References
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Qun Li,Xuhua Guan,Peng Wu,Xiaoye Wang,Lei Zhou,Yeqing Tong,Ruiqi Ren,Kathy Leung,Eric H. Y. Lau,Jessica Y. Wong,Xuesen Xing,Nijuan Xiang,Yang Wu,Chao Li,Chen Qi,Dan Li,Tian Liu,Jing Zhao,Man Liu,Wenxiao Tu,Chuding Chen,Lianmei Jin,Rui Yang,Qi Wang,Suhua Zhou,Rui Wang,Hui Liu,Yingbo Luo,Yuan Liu,Ge Shao,Huan Li,Zhongfa Tao,Yang Yang,Yang Yang,Zhiqiang Deng,Boxi Liu,Zhitao Ma,Yanping Zhang,Guoqing Shi,Tommy Tsan-Yuk Lam,Joseph T. Wu,George F. Gao,George F. Gao,Benjamin J. Cowling,Bo Yang,Gabriel M. Leung,Zijian Feng +46 more
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Journal ArticleDOI
In Vitro Antiviral Activity and Projection of Optimized Dosing Design of Hydroxychloroquine for the Treatment of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2).
Xueting Yao,Fei Ye,Miao Zhang,Cheng Cui,Baoying Huang,Peihua Niu,Xu Liu,Li Zhao,Erdan Dong,Chunli Song,Siyan Zhan,Roujian Lu,Haiyan Li,Wenjie Tan,Dongyang Liu +14 more
TL;DR: It is proposed that the immunomodulatory effect of hydroxychloroquine also may be useful in controlling the cytokine storm that occurs late-phase in critically ill SARS-CoV-2 infected patients.
Journal ArticleDOI
Hydroxychloroquine, a less toxic derivative of chloroquine, is effective in inhibiting SARS-CoV-2 infection in vitro
J.D. Liu,Ruiyuan Cao,Mingyue Xu,Xi Wang,Huanyu Zhang,Hengrui Hu,Yufeng Li,Zhihong Hu,Wu Zhong,Manli Wang +9 more
TL;DR: Evaluated the antiviral effect of HCQ against SARS-CoV-2 infection in comparison to CQ in vitro and concluded that CQ appears to be the drug of choice for large-scale use due to its availability, proven safety record, and a relatively low cost.
Journal ArticleDOI
Chloroquine is a potent inhibitor of SARS coronavirus infection and spread
Martin J. Vincent,Eric Bergeron,Suzanne Benjannet,Bobbie R. Erickson,Pierre E. Rollin,Thomas G. Ksiazek,Nabil G. Seidah,Stuart T. Nichol +7 more
TL;DR: Chloroquine is effective in preventing the spread of SARS CoV in cell culture and the indirect immunofluorescence assay described herein represents a simple and rapid method for screening SARS-CoV antiviral compounds.
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