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HCQ study #67 of 258
6/22 Early treatment study
Chen et al., medRxiv, doi:10.1101/2020.06.19.20136093 (Preprint)
Efficacy and safety of chloroquine or hydroxychloroquine in moderate type of COVID-19: a prospective open-label randomized controlled study
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Significantly faster clinical recovery and shorter time to RNA negative (from 7.0 days to 2.0 days (HCQ), p=0.01. 67 patients with mild/moderate cases.

Chen et al., 6/22/2020, Randomized Controlled Trial, China, Asia, preprint, 19 authors, dosage 200mg bid days 1-10.
median time to PCR-, 72.0% lower, relative time 0.28, p = 0.01, treatment 18, control 12.

Effect extraction follows pre-specified rules prioritizing more serious outcomes. For an individual study the most serious outcome may have a smaller number of events and lower statistical signficance, however this provides the strongest evidence for the most serious outcomes when combining the results of many trials.
Details of all 258 studies    Meta analysis
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