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Ivermectin study #36 of 65
11/28 Prophylaxis study
Bernigaud et al., Annals of Dermatology and Venereology, doi:10.1016/j.annder.2020.09.231 (Peer Reviewed)
Ivermectin benefit: from scabies to COVID-19, an example of serendipity
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69 residents of a French care home, median age 90, were treated with ivermectin for a scabies outbreak. 3,062 residents in 45 nearby comparable homes were used as controls.
7 of 69 treated patients had probable or certain COVID-19, with no serious cases and no deaths. In comparable care homes in the same district, matched by age and socio-economic level, there was 22.6% COVID-19 and 5% death.

Bernigaud et al., 11/28/2020, retrospective, France, Europe, peer-reviewed, 12 authors, dosage 200μg/kg days 1, 8, 15, 400μg/kg days 1, 8, 15, two different dosages.
risk of death, 99.4% lower, RR 0.006, p = 0.08, treatment 0 of 69 (0.0%), control 150 of 3062 (4.9%), continuity correction due to zero event (with reciprocal of the contrasting arm).
risk of COVID-19 case, 55.1% lower, RR 0.45, p = 0.01, treatment 7 of 69 (10.1%), control 692 of 3062 (22.6%).

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.
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