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0 0.5 1 1.5 2+ Viral clearance 38% Improvement Relative Risk c19hcq.com Xia et al. HCQ for COVID-19 LATE TREATMENT Favors HCQ Favors control
Xia, 25 patient HCQ late treatment study: 38% improved viral clearance [p=0.17] https://c19p.org/xia
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Efficacy of Chloroquine and Lopinavir/ Ritonavir in mild/general novel coronavirus (CoVID-19) infections: a prospective, open-label, multicenter randomized controlled clinical study
Xia et al., ChiCTR2000029741 (Preprint)
11 Feb 2020    Source   PDF   Share   Tweet
Early results from a very small trial, reported within the application for a later trial. Very minimal details are provided, but we include this as the earliest published results. For COVID-19 patients with pneumonia the viral negative conversion rate was 50% (5/10) with CQ versus 20% (3/15) with lopinavir/ritonavir.
risk of no viral clearance, 37.5% lower, RR 0.62, p = 0.17, treatment 5 of 10 (50.0%), control 12 of 15 (80.0%), NNT 3.3.
Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates
This study is excluded in the after exclusion results of meta analysis: minimal details provided.
Xia et al., 2/11/2020, retrospective, China, Asia, preprint, 1 author.
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Late treatment
is less effective
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