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HCQ study #200 of 255
11/29 Late treatment study
Abd-Elsalam et al., Biological Trace Element Research, doi:10.1007/s12011-020-02512-1 (Peer Reviewed)
Do Zinc Supplements Enhance the Clinical Efficacy of Hydroxychloroquine?: a Randomized, Multicenter Trial
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191 patient RCT in Egypt comparing the addition of zinc to HCQ, not showing a significant difference.
Clinical recovery at 28 days was 79.2% in the zinc group and 77.9% control, p = 0.969.
Mechanical ventilation was used with 4 patients in the zinc group and 6 control. There were 5 deaths in each group.
No information on baseline zinc values was recorded. We note that Egypt has a low rate of zinc deficiency so supplementation is less likely to be helpful in Egypt [1, 2]

Abd-Elsalam et al., 11/29/2020, peer-reviewed, 10 authors.
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