Seet, 1,354 patient povidone-iodine prophylaxis RCT: 45% fewer symptomatic cases [p=0.002] and 31% fewer cases [p=0.01] https://c19p.org/seetp
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Positive impact of oral hydroxychloroquine and povidone-iodine throat spray for COVID-19 prophylaxis: an open-label randomized trial
et al., International Journal of Infectious Diseases, doi:10.1016/j.ijid.2021.04.035
Prophylaxis RCT in Singapore with 3,037 low risk patients, showing lower serious cases, lower symptomatic cases, and lower confirmed cases of COVID-19 with all treatments (ivermectin, HCQ, PVP-I, and Zinc + vitamin C) compared to vitamin C.Meta-analysis of vitamin C in 6 previous trials shows a benefit of 16%, so the actual benefit of ivermectin, HCQ, and PVP-I may be higher. Cluster RCT with 40 clusters.There were no hospitalizations and no deaths. NCT04446104.
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risk of symptomatic case, 44.7% lower, RR 0.55, p = 0.002, treatment 42 of 735 (5.7%), control 64 of 619 (10.3%), NNT 22.
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risk of case, 31.1% lower, RR 0.69, p = 0.01, treatment 338 of 735 (46.0%), control 433 of 619 (70.0%), NNT 4.2, adjusted per study, odds ratio converted to relative risk, model 6.
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| Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates |
Seet et al., 4/14/2021, Cluster Randomized Controlled Trial, Singapore, Asia, peer-reviewed, 15 authors, this trial compares with another treatment - results may be better when compared to placebo, trial NCT04446104.
seet
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