9 October 2020 - Early treatment study
Ivermectin in combination with doxycycline for treating COVID-19 symptoms: a randomized trial
et al., Journal of International Medical Research, doi:10.5061/dryad.qjq2bvqf6 (preprint 10/9/20) (Peer Reviewed)
RCT for ivermectin+doxycycline showing improvements in mortality, recovery, progression, and virological cure. 183 treatment and 183 control patients with no deaths in the treatment arm vs. 3 in the control arm (the 3 control deaths are not included in the analysis of other outcomes). NCT04523831.
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risk of death, 85.7% lower, RR 0.14, p = 0.25, treatment 0 of 183 (0.0%), control 3 of 183 (1.6%), NNT 61, relative risk is not 0 because of continuity correction due to zero events (with reciprocal of the contrasting arm).
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risk of progression, 57.0% lower, RR 0.43, p < 0.001, treatment 16 of 183 (8.7%), control 32 of 180 (17.8%), NNT 11, adjusted per study, Cox regression.
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risk of no recovery, 94.0% lower, RR 0.06, p < 0.001, treatment 72 of 183 (39.3%), control 100 of 180 (55.6%), NNT 6.2, adjusted per study, day 7, Cox regression.
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risk of no recovery, 38.5% lower, RR 0.61, p = 0.005, treatment 40 of 183 (21.9%), control 64 of 180 (35.6%), NNT 7.3, day 11.
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risk of no recovery, 96.0% lower, RR 0.04, p < 0.001, treatment 42 of 183 (23.0%), control 67 of 180 (37.2%), NNT 7.0, adjusted per study, day 12, Cox regression.
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time to recovery, 27.0% lower, RR 0.73, p = 0.003, treatment 183, control 180, Cox regression.
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risk of no virological cure, 39.0% lower, RR 0.61, p = 0.002, treatment 14 of 183 (7.7%), control 36 of 180 (20.0%), NNT 8.1, adjusted per study, Cox regression.
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| Effect extraction follows pre-specified rules prioritizing more serious outcomes. |
Mahmud et al., 10/9/2020, Double Blind Randomized Controlled Trial, Bangladesh, South Asia, peer-reviewed, 15 authors, average treatment delay 4.0 days, dosage 12mg single dose, this trial uses multiple treatments in the treatment arm (combined with doxycycline) - results of individual treatments may vary.
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