Trial reportJournal of medical virology2021
A pilot double-blind safety and feasibility randomized controlled trial of high-dose intravenous zinc in hospitalized COVID-19 patients.
Trial report in Journal of medical virology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 4 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
31 citing papers in PubMed, 4 syntheses or guidelines pooled it.
- Micronutrients, Vitamin D, and Inflammatory Biomarkers in COVID-19: A Systematic Review and Meta-analysis of Causal Inference Studies.Nutrition reviews · 2025Pooled it
- Zinc supplementation and COVID-19 mortality: a meta-analysis.European journal of medical research · 2022Pooled it
- Clinical significance of micronutrient supplements in patients with coronavirus disease 2019: A comprehensive systematic review and meta-analysis.Clinical nutrition ESPEN · 2022Pooled it
- Pooled it
- A pilot double-blind safety and feasibility randomized controlled trial of high-dose intravenous zinc in hospitalized COVID-19 patients.Journal of medical virology · 2021Trial
- Melatonin, vitamins and minerals supplements for the treatment of Covid-19 and Covid-like illness: A prospective, randomized, double-blind multicenter study.Explore (New York, N.Y.)Trial
- Serum zinc level independently predicts need for inpatient intubation among patients hospitalized with COVID-19: A prospective observational study.Nutrition in clinical practice : official publication of the American Society for Parenteral and Enteral Nutrition · 2026Observational
- Antioxidant and oxidative enzymes, genetic variants, and cofactors as prognostic biomarkers of COVID-19 severity and mortality: a systematic review.Frontiers in molecular biosciences · 2025Review
- Antioxidant Nutraceuticals: Their Adjunct Role in the Management of COVID-19 Infections and Post-COVID Syndrome.Infectious disorders drug targets · 2025Review
- Assessment of Supplementation with Different Biomolecules in the Prevention and Treatment of COVID-19.Nutrients · 2024Review
- Role of Antioxidant Therapy in the Treatment and Prognosis of COVID-19: A Systematic Review and Meta-analysis of Randomized Controlled Trials.Current developments in nutrition · 2024Article
- Article
- The nutritional roles of zinc for immune system and COVID-19 patients.Frontiers in nutrition · 2024Review
- The Anti-Oxidative, Anti-Inflammatory, Anti-Apoptotic, and Anti-Necroptotic Role of Zinc in COVID-19 and Sepsis.Antioxidants (Basel, Switzerland) · 2023Review
- Zinc and selenium status in coronavirus disease 2019.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2023Review
- The Effects of Anti-platelets and Micronutrients in the Recovery of COVID-19 Patients: A Review.Cureus · 2023Review
- Antioxidant and Immune-Related Implications of Minerals in COVID-19: A Possibility for Disease Prevention and Management.Antioxidants (Basel, Switzerland) · 2023Review
- Nutraceuticals and COVID-19: A mechanistic approach toward attenuating the disease complications.Journal of food biochemistry · 2022Review
- Zinc pyrithione is a potent inhibitor of PLJournal of enzyme inhibition and medicinal chemistry · 2022Article
- Zinc in Human Health and Infectious Diseases.Biomolecules · 2022Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
12 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Zinc inhibits replication of the SARS-CoV virus. We aimed to evaluate the safety, feasibility, and biological effect of administering high-dose intravenous zinc (HDIVZn) to patients with COVID-19. We performed a Phase IIa double-blind, randomized controlled trial to compare HDIVZn to placebo in hospitalized patients with COVID-19. We administered trial treatment per day for a maximum of 7 days until either death or hospital discharge. We measured zinc concentration at baseline and during treatment and observed patients for any significant side effects. For eligible patients, we randomized and administered treatment to 33 adult participants to either HDIVZn (n = 15) or placebo (n = 18). We observed no serious adverse events throughout the study for a total of 94 HDIVZn administrations. However, three participants in the HDIVZn group reported infusion site irritation. Mean serum zinc on Day 1 in the placebo, and the HDIVZn group was 6.9 ± 1.1 and 7.7 ± 1.6 µmol/l, respectively, consistent with zinc deficiency. HDIVZn, but not placebo, increased serum zinc levels above the deficiency cutoff of 10.7 µmol/l (p < .001) on Day 6. Our study did not reach its target enrollment because stringent public health measures markedly reduced patient hospitalizations. Hospitalized COVID-19 patients demonstrated zinc deficiency. This can be corrected with HDIVZn. Such treatment appears safe, feasible, and only associated with minimal peripheral infusion site irritation. This pilot study justifies further investigation of this treatment in COVID-19 patients.
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