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All Studies   Meta Analysis    Recent:   
0 0.5 1 1.5 2+ Virological cure at day 6 66% Improvement Relative Risk HCQ for COVID-19  Gautret et al.  EARLY TREATMENT Is early treatment with HCQ beneficial for COVID-19? Prospective study of 36 patients in France Improved viral clearance with HCQ (p=0.001) c19hcq.org Gautret et al., Int. J. of Antimicrobi.., Mar 2020 Favors HCQ Favors control

Hydroxychloroquine and azithromycin as a treatment of COVID-19: results of an open-label non-randomized clinical trial

Gautret et al., Int. J. of Antimicrobial Agents, doi:10.1016/j.ijantimicag.2020.105949 (date from preprint)
Mar 2020  
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HCQ for COVID-19
1st treatment shown to reduce risk in March 2020
 
*, now known with p < 0.00000000001 from 422 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.
3,900+ studies for 60+ treatments. c19hcq.org
HCQ was significantly associated with reduction / elimination of viral load, which was enhanced with AZ. Updated 8/13: responses to this paper have raised methodological issues sciencedirect.com, sciencedirect.com (B), sciencedirect.com (C).
Despite the limitations, this early observational study was a milestone in the discovery process, including detailed daily evolution of PCR positivity. This study should be viewed in the context of the series of studies from this group.
An update to this paper, including originally excluded patients, confirms the effectiveness of HCQ+AZ on viral clearance and early discharge sciencedirect.com (D). Also see sciencedirect.com (E) and the response from the authors sciencedirect.com (F).
This study is excluded in the after exclusion results of meta analysis: excessive unadjusted differences between groups; results only for PCR status which may be significantly different to symptoms.
risk of no virological cure at day 6, 66.0% lower, RR 0.34, p = 0.001, treatment 6 of 20 (30.0%), control 14 of 16 (87.5%), NNT 1.7.
Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates
Gautret et al., 17 Mar 2020, prospective, France, peer-reviewed, 18 authors, average treatment delay 4.1 days, dosage 200mg tid days 1-10.
This PaperHCQAll
Hydroxychloroquine and azithromycin as a treatment of COVID-19: results of an open-label non-randomized clinical trial
Philippe Gautret, Jean-Christophe Lagier, Philippe Parola, Van Thuan Hoang, Line Meddeb, Morgane Mailhe, Barbara Doudier, Johan Courjon, Valérie Giordanengo, Vera Esteves Vieira, Hervé Tissot Dupont, Stéphane Honoré, Philippe Colson, Eric Chabrière, Bernard La Scola, Jean-Marc Rolain, Philippe Brouqui, Didier Raoult
International Journal of Antimicrobial Agents, doi:10.1016/j.ijantimicag.2020.105949
Background: Chloroquine and hydroxychloroquine have been found to be efficient on SARS-CoV-2, and reported to be efficient in Chinese COV-19 patients. We evaluate the effect of hydroxychloroquine on respiratory viral loads. Patients and methods: French Confirmed COVID-19 patients were included in a single arm protocol from early March to March 16 th , to receive 600mg of hydroxychloroquine daily and their viral load in nasopharyngeal swabs was tested daily in a hospital setting. Depending on their clinical presentation, azithromycin was added to the treatment. Untreated patients from another center and cases refusing the protocol were included as negative controls. Presence and absence of virus at Day6-post inclusion was considered the end point. Results: Six patients were asymptomatic, 22 had upper respiratory tract infection symptoms and eight had lower respiratory tract infection symptoms. Twenty cases were treated in this study and showed a significant reduction of the viral carriage at D6-post inclusion compared to controls, and much lower average carrying duration than reported in the litterature for untreated patients. Azithromycin added to hydroxychloroquine was significantly more efficient for virus elimination. Conclusion: Despite its small sample size, our survey shows that hydroxychloroquine treatment is significantly associated with viral load reduction/disappearance in COVID-19 patients and its effect is reinforced by azithromycin.
Declarations Supplementary material Supplementary material associated with this article can be found, in the online version, at doi: 10.1016/j.ijantimicag.2020. 105949 .
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