All Studies Meta Analysis Recent:

Meta-analysis on chloroquine derivatives and COVID-19 mortality

IHU Marseille

Oct 2020

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HCQ for COVID-19

1st treatment shown to reduce risk in March 2020

^*, now with p < 0.00000000001 from 418 studies, recognized in 46 countries.

Lower risk for mortality, hospitalization, progression, recovery, cases, and viral clearance.

No treatment is 100% effective. Protocols combine treatments. ^* >10% efficacy, ≥3 studies.

5,000+ studies for 104 treatments. c19hcq.org

Updated meta analysis of 41 studies showing CQ/HCQ OR 0.57, p<0.0001 from clinical studies.

For big data studies authors find inconsistent results and OR 0.83, p=0.0014, and for all studies combined OR 0.72, p<0.0001.

9 meta analyses show significant improvements with hydroxychloroquine for mortality1-4, hospitalization1, recovery5, combined death/hospitalization/cases6, cases7,8, and viral clearance9.

Currently there are 39 HCQ for COVID-19 early treatment studies, showing 76% lower mortality [61‑85%], 67% lower ventilation [-710‑99%], 31% lower ICU admission [1‑53%], and 41% lower hospitalization [28‑51%].

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1. 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.

2. 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.

3. 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.

4. 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.

5. 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.

6. 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.

7. 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.

8. Han et al., The efficacy and safety of hydroxychloroquine for COVID-19 prophylaxis and clinical assessment: an updated meta-analysis of randomized trials, Journal of Thoracic Disease, doi:10.21037/jtd-23-1043.amegroups.com, doi.org.

9. Brouqui et al., SARS-CoV 2 Viral Clearance in 1276 Patients: Associated Factors and the Role of Treatment with Hydroxychloroquine and Azithromycin, Acta Scientific Microbiology, doi:10.31080/ASMI.2024.07.1413.actascientific.com, doi.org.

IHU Marseille et al., 20 Oct 2020, preprint, 1 author.

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Please send us corrections, updates, or comments. c19early involves the extraction of 100,000+ datapoints from thousands of papers. Community updates help ensure high accuracy. Treatments and other interventions are complementary. All practical, effective, and safe means should be used based on risk/benefit analysis. No treatment or intervention is 100% available and effective for all current and future variants. We do not provide medical advice. Before taking any medication, consult a qualified physician who can provide personalized advice and details of risks and benefits based on your medical history and situation. FLCCC and WCH provide treatment protocols.

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