Carvallo, 229 patient ivermectin prophylaxis study: 96% fewer cases [p<0.0001] https://c19p.org/carvalloprep2
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Usefulness of Topic Ivermectin and Carrageenan to Prevent Contagion of Covid 19 (IVERCAR)
et al., NCT04425850 (Preprint)
Prophylaxis study using ivermectin and carrageenan showing 0 of 131 cases from treated healthcare workers, compared to 11 of 98 control.The effect is likely to be primarily due to ivermectin - the author has later reported that carrageenan is not necessary [youtube.com].
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risk of case, 96.3% lower, RR 0.04, p < 0.001, treatment 0 of 131 (0.0%), control 11 of 98 (11.2%), NNT 8.9, relative risk is not 0 because of continuity correction due to zero events (with reciprocal of the contrasting arm).
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| Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates |
This study is excluded in the after exclusion results of meta
analysis:
concern about potential data issues.
Carvallo et al., 10/19/2020, prospective, Argentina, South America, preprint, 1 author, dosage 1mg days 1-14, this trial uses multiple treatments in the treatment arm (combined with iota-carrageenan) - results of individual treatments may vary.
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