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All Studies   Meta Analysis    Recent:   
0 0.5 1 1.5 2+ Symp. case, severe 92% Improvement Relative Risk Symp. case, moderate/se.. 85% Symp. case, all 48% HCQ  Nasri et al.  Prophylaxis  RCT Is pre-exposure prophylaxis with HCQ beneficial for COVID-19? RCT 143 patients in Iran (August - November 2020) Fewer symptomatic cases with HCQ (p=0.028) c19hcq.org Nasri et al., Advanced Biomedical Rese.., Jan 2023 Favors HCQ Favors control

Efficacy of hydroxychloroquine in pre-exposure severe acute respiratory syndrome coronavirus 2 prophylaxis among high-risk healthcare workers: A multicenter study

Nasri et al., Advanced Biomedical Research, doi:10.4103/abr.abr_104_21, IRCT20200414047076N1
Jan 2023  
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HCQ for COVID-19
1st treatment shown to reduce risk in March 2020
 
*, now known with p < 0.00000000001 from 421 studies, recognized in 42 countries.
No treatment is 100% effective. Protocols combine complementary and synergistic treatments. * >10% efficacy in meta analysis with ≥3 clinical studies.
3,800+ studies for 60+ treatments. c19hcq.org
RCT 143 healthcare workers in Iran, showing lower cases with HCQ prophylaxis, statistically significant only for moderate/severe cases. Baseline details are not provided.
risk of symptomatic case, 92.2% lower, RR 0.08, p = 0.03, treatment 0 of 70 (0.0%), control 6 of 73 (8.2%), NNT 12, relative risk is not 0 because of continuity correction due to zero events (with reciprocal of the contrasting arm), severe cases.
risk of symptomatic case, 85.1% lower, RR 0.15, p = 0.003, treatment 2 of 70 (2.9%), control 14 of 73 (19.2%), NNT 6.1, moderate or severe cases.
risk of symptomatic case, 47.9% lower, RR 0.52, p = 0.16, treatment 7 of 70 (10.0%), control 14 of 73 (19.2%), NNT 11, all cases.
Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates
Nasri et al., 27 Jan 2023, Randomized Controlled Trial, Iran, peer-reviewed, mean age 29.7, 11 authors, study period 11 August, 2020 - 11 November, 2020, trial IRCT20200414047076N1.
This PaperHCQAll
Efficacy of hydroxychloroquine in pre-exposure severe acute respiratory syndrome coronavirus 2 prophylaxis among high-risk healthcare workers: A multicenter study
Dr Afsane Vaezi, Elahe Nasri, Hamed Fakhim, Mehrdad Salahi, Safiyeh Ghafel, Samane Pourajam, Ali Darakhshandeh, Nazila Kassaian, Somayeh Sadeghi, Behrooz Ataei, Shaghayeghhaghjooy Javanmard
Advanced Biomedical Research, doi:10.4103/abr.abr_104_21
The novel coronavirus disease 2019 (COVID-19) is a highly contagious infection associated with significant mortality and morbidity among risk groups and a devastating local economic burden around the world. [1, 2] During the pandemic,
Ethical conduct of research Conflicts of interest There are no conflicts of interest.
References
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Boulware, Pullen, Bangdiwala, Pastick, Lofgren et al., A randomized trial of hydroxychloroquine as postexposure prophylaxis for covid-19, N Engl J Med
Chang, Park, Kim, Park, Risk factors for disease progression in COVID-19 patients, BMC Infect Dis
Chang, Sun, Repositioning chloroquine as ideal antiviral prophylactic against COVID-19-time is now, Drug Discov Today
Cheng, Group, A multicenter, randomized, open-label, controlled trial to evaluate the efficacy and tolerability of hydroxychloroquine and a retrospective study in adult patients with mild to moderate coronavirus disease 2019 (COVID-19), PLoS One
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Hu, Song, Xu, Chen, Xu, Clinical characteristics of 24 asymptomatic infections with COVID-19 screened among close contacts in Nanjing, China, Sci China Life Sci
Huang, Wang, Li, Ren, Zhao et al., Clinical features of patients infected with 2019 novel coronavirus in Wuhan, China, Lancet
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Marmor, Carr, Easterbrook, Farjo, Mieler et al., Recommendations on screening for chloroquine and hydroxychloroquine retinopathy: A report by the American Academy of Ophthalmology, Ophthalmology
Mohammadi, Pourzamani, Karimi, Mohammadi, Mohammadi et al., Artificial neural network and logistic regression modelling to characterize COVID-19 infected patients in local areas of Iran, Biomed J
Parhizgar, Tahghighi, Introducing new antimalarial analogues of chloroquine and amodiaquine: A narrative review, Iran J Med Sci
Pereira, Challenges and cares to promote rational use of chloroquine and hydroxychloroquine in the management of coronavirus disease 2019 (COVID-19) pandemic: A timely review, J Toxicol Environ Health B Crit Rev
Rajasingham, Bangdiwala, Nicol, Skipper, Pastick et al., Hydroxychloroquine as pre-exposure prophylaxis for COVID-19 in healthcare workers: A randomized trial, medRxiv
Rosenberg, Dufort, Udo, Wilberschied, Kumar et al., Association of treatment with hydroxychloroquine or azithromycin with in-hospital mortality in patients with COVID-19 in New York State, JAMA
Sahu, Amrithanand, Mathew, Aggarwal, Nayer et al., COVID-19 in health care workers -A systematic review and metaanalysis, Am J Emerg Med
Wang, Cao, Zhang, Yang, Liu et al., Remdesivir and chloroquine effectively inhibit the recently emerged novel coronavirus (2019-nCoV) in vitro, Cell Res
Winzeler, Malaria research in the post-genomic era, Nature
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