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Vitamin D not help 10 days after COVID-19 symptoms - RCT March 2021

Effect of a Single High Dose of Vitamin D3 on Hospital Length of Stay in Patients With Moderate to Severe COVID-19. A Randomized Clinical Trial

JAMA. Published online February 17, 2021. doi:10.1001/jama.2020.26848
Igor H. Murai, PhD1; Alan L. Fernandes, PhD1; Lucas P. Sales, MSc1; et alAna J. Pinto, BSc2; Karla F. Goessler, PhD2; Camila S. C. Duran, MD1; Carla B. R. Silva, MD1; André S. Franco, MD1; Marina B. Macedo, MD, MSc1; Henrique H. H. Dalmolin, MD1; Janaina Baggio, MD1; Guilherme G. M. Balbi, MD1; Bruna Z. Reis, PhD1; Leila Antonangelo, MD, PhD3; Valeria F. Caparbo, PhD1; Bruno Gualano, PhD2,4; Rosa M. R. Pereira, MD, PhD1

Vitamin D not given until 10 days after symptoms (15 days after infection started?)

Key Points

  • Question What is the effect of a single high dose of vitamin D3 on hospital length of stay among hospitalized patients with moderate to severe coronavirus disease 2019 (COVID-19)?
  • Findings In this randomized clinical trial that involved 240 hospitalized patients with moderate to severe COVID-19, a single dose of 200 000 IU of vitamin D3, compared with placebo, did not significantly reduce hospital length of stay (median of 7.0 vs 7.0 days; unadjusted hazard ratio for hospital discharge, 1.07).
  • Meaning The study does not support the use of a high dose of vitamin D3 for treatment of moderate to severe COVID-19 in hospitalized patients.

Importance The efficacy of vitamin D3 supplementation in coronavirus disease 2019 (COVID-19) remains unclear.

Objective To investigate the effect of a single high dose of vitamin D3 on hospital length of stay in patients with COVID-19.

Design, Setting, and Participants This was a multicenter, double-blind, randomized, placebo-controlled trial conducted in 2 sites in Sao Paulo, Brazil. The study included 240 hospitalized patients with COVID-19 who were moderately to severely ill at the time of enrollment from June 2, 2020, to August 27, 2020. The final follow-up was on October 7, 2020.

Interventions Patients were randomly assigned to receive a single oral dose of 200 000 IU of vitamin D3 (n = 120) or placebo (n = 120).

Main Outcomes and Measures The primary outcome was length of stay, defined as the time from the date of randomization to hospital discharge. Prespecified secondary outcomes included mortality during hospitalization; the number of patients admitted to the intensive care unit; the number of patients who required mechanical ventilation and the duration of mechanical ventilation; and serum levels of 25-hydroxyvitamin D, total calcium, creatinine, and C-reactive protein.

Results Of 240 randomized patients, 237 were included in the primary analysis (mean [SD] age, 56.2 [14.4] years; 104 [43.9%] women; mean [SD] baseline 25-hydroxyvitamin D level, 20.9 [9.2] ng/mL). Median (interquartile range) length of stay was not significantly different between the vitamin D3 (7.0 [4.0-10.0] days) and placebo groups (7.0 [5.0-13.0] days) (log-rank P = .59; unadjusted hazard ratio for hospital discharge, 1.07 [95% CI, 0.82-1.39]; P = .62). The difference between the vitamin D3 group and the placebo group was not significant for in-hospital mortality (7.6% vs 5.1%; difference, 2.5% [95% CI, –4.1% to 9.2%]; P = .43), admission to the intensive care unit (16.0% vs 21.2%; difference, –5.2% [95% CI, –15.1% to 4.7%]; P = .30), or need for mechanical ventilation (7.6% vs 14.4%; difference, –6.8% [95% CI, –15.1% to 1.2%]; P = .09). Mean serum levels of 25-hydroxyvitamin D significantly increased after a single dose of vitamin D3 vs placebo (44.4 ng/mL vs 19.8 ng/mL; difference, 24.1 ng/mL [95% CI, 19.5-28.7]; P < .001). There were no adverse events, but an episode of vomiting was associated with the intervention.

Conclusions and Relevance Among hospitalized patients with COVID-19, a single high dose of vitamin D3, compared with placebo, did not significantly reduce hospital length of stay. The findings do not support the use of a high dose of vitamin D3 for treatment of moderate to severe COVID-19.

Trial Registration ClinicalTrials.gov Identifier: NCT04449718
Preprint version of this is also on VitaminDWiki ((Severe COVID-19 not fought by vitamin D when given too late - RCT Nov 18, 2020)

 Download the PDF from VitaminDWiki

Editorial in the same issue noted some limitations of this study

  1. " 208 participants they would have 80% power to detect a 50% difference in hospital length of stay, which is a highly improbable result"
  2. "most of the patient population would be considered moderately ill and the results cannot be generalized to critically ill patients, who were excluded." Mechanical Ventilation and ICU

Comments on this trial

  • A recent study demonstrated that buckets of water made no difference in tackling a house fire, therefore we conclude there is no benefit to using water for firefighting”."
  • a bucket of water can't put out a raging house fire... (but pretty useful for putting out the cigarette before it catches on the curtains though)
  • "There are considerable differences between the control and treatment groups in a number of variables known to be highly relevant to covid severity and hence length of stay. The treatment group had more people with diabetes who are more likely to die from covid."

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The following would have been a useful vitamin D level if it had been achieved a week sooner

Note: The founder of VitaminDWiki enclosed 200,000 IU of Vitamin D in his Christmas cards
   to be taken immediately if get COVID-19 symptoms Four capsules of 50,000 IU each on a small blister pack Amazon


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Created by admin. Last Modification: Sunday October 2, 2022 01:21:37 GMT-0000 by admin. (Version 15)

Attached files

ID Name Comment Uploaded Size Downloads
16232 Brazil RCT 200K.jpg admin 18 Sep, 2021 29.16 Kb 337
15061 Four 50K IU.jpg admin 18 Feb, 2021 40.41 Kb 817
15060 Brazil RCT.jpg admin 18 Feb, 2021 20.46 Kb 660
15059 Vit D COVID RCT Brazil.pdf admin 18 Feb, 2021 401.00 Kb 427