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Home   COVID-19 treatment studies for Vitamin C  COVID-19 treatment studies for Vitamin C  C19 studies: Vitamin C  Vitamin C   Select treatmentSelect treatmentTreatmentsTreatments
Aspirin Molnupiravir
Bamlanivimab Nigella Sativa
Bromhexine Nitazoxanide
Budesonide Povidone-Iod..
Casirivimab/i.. Probiotics
Colchicine Proxalutamide
Conv. Plasma Quercetin
Curcumin Remdesivir
Favipiravir Sotrovimab
Fluvoxamine Vitamin A
Hydroxychloro.. Vitamin C
Iota-carragee.. Vitamin D
Ivermectin Zinc
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Vitamin C study #4 of 31   All Outcomes
8/10 Late treatment study
Zhang et al., Annals of Intensive Care, doi:10.1186/s13613-020-00792-3 (Peer Reviewed)
Pilot Trial of High-dose vitamin C in critically ill COVID-19 patients (preprint 8/10/2020)
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Small RCT for high dose vitamin C for ICU patients showing reduced (but not statistically significant) mortality. Dosage was 12g of vitamin C/50ml every 12 hours for 7 days at a rate of 12ml/hour.
Zhang et al., 8/10/2020, Randomized Controlled Trial, China, Asia, peer-reviewed, 11 authors.
risk of death, 50.0% lower, RR 0.50, p = 0.20, treatment 6 of 27 (22.2%), control 11 of 29 (37.9%), adjusted per study, ICU mortality.
risk of death, 80.0% lower, RR 0.20, p = 0.04, treatment 5 of 27 (18.5%), control 11 of 29 (37.9%), adjusted per study, ICU mortality for SOFA>=3.
risk of death, 50.0% lower, RR 0.50, p = 0.31, treatment 6 of 27 (22.2%), control 10 of 29 (34.5%), adjusted per study, 28 day mortality.
risk of death, 70.0% lower, RR 0.30, p = 0.07, treatment 5 of 27 (18.5%), control 10 of 29 (34.5%), adjusted per study, 28 day mortality for SOFA>=3.
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.
All 31 studies   All Outcomes
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