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Azithromycin in addition to standard of care versus standard of care alone in the treatment of patients admitted to the hospital with severe COVID-19 in Brazil (COALITION II): a randomised clinical trial

Furtado et al., The Lancet, doi:10.1016/S0140-6736(20)31862-6, COALITION II, NCT04321278
Sep 2020  
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Mortality, day 29 -8% Improvement Relative Risk Mortality, day 15 -3% 6 point scale, day 29 30% 6 point scale, day 15 26% primary Azithromycin  COALITION II  LATE TREATMENT  RCT Is late treatment with azithromycin beneficial for COVID-19? RCT 397 patients in Brazil No significant difference in mortality c19early.org Furtado et al., The Lancet, September 2020 Favorsazithromycin Favorscontrol 0 0.5 1 1.5 2+
Small RCT comparing the addition of AZ for very late stage patients on ventilation or oxygen. One notable result is that even within this extremely late stage population, results suggest increased efficacy with the addition of AZ for patients with earlier use of AZ/HCQ, OR 0.71 [0.25-2.03] (Figure S4).
Patients received 8g of HCQ over 10 days, approaching the high levels used in the RECOVERY trial (9.2g over 10 days), showing significantly more adverse events than typical trials. 50% of patients were on mechanical ventilation at baseline.
More than the increase in mortality at day 29 occurred on day 0, and more than 3x the increase occurred by day 2.
risk of death, 8.0% higher, HR 1.08, p = 0.63, treatment 90 of 214 (42.1%), control 73 of 183 (39.9%), day 29.
risk of death, 2.6% higher, RR 1.03, p = 0.91, treatment 66 of 214 (30.8%), control 55 of 183 (30.1%), day 15.
6 point scale, 30.1% lower, OR 0.70, p = 0.08, treatment 214, control 183, inverted to make OR<1 favor treatment, day 29, RR approximated with OR.
6 point scale, 26.5% lower, OR 0.74, p = 0.10, treatment 214, control 183, inverted to make OR<1 favor treatment, day 15, primary outcome, RR approximated with OR.
Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates
Furtado et al., 4 Sep 2020, Randomized Controlled Trial, Brazil, peer-reviewed, 33 authors, average treatment delay 8.0 days, trial NCT04321278 (history) (COALITION II).
This PaperAzithromycinAll
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Late treatment
is less effective
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