scholarly journals Monthly high-dose vitamin D supplementation does not increase kidney stone risk or serum calcium: results from a randomized controlled trial

2019 ◽  
Vol 109 (6) ◽  
pp. 1578-1587 ◽  
Author(s):  
Zarintaj Malihi ◽  
Carlene M M Lawes ◽  
Zhenqiang Wu ◽  
Ying Huang ◽  
Debbie Waayer ◽  
...  
Keyword(s):  
Vitamin D ◽  
Randomized Controlled Trial ◽  
Serum Calcium ◽  
Kidney Stone ◽  
Controlled Trial ◽  
Vitamin D Supplementation ◽  
High Dose ◽  
Randomized Controlled ◽  
High Dose Vitamin

scholarly journals COvid-19 and high-dose VITamin D supplementation TRIAL in high-risk older patients (COVIT-TRIAL): study protocol for a randomized controlled trial

Trials ◽  
2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Cédric Annweiler ◽  
◽  
Mélinda Beaudenon ◽  
Jennifer Gautier ◽  
Romain Simon ◽  
...  
Keyword(s):  
Vitamin D ◽  
Randomized Controlled Trial ◽  
High Risk ◽  
Older Patients ◽  
Standard Dose ◽  
Controlled Trial ◽  
Vitamin D Supplementation ◽  
High Dose ◽  
Randomized Controlled ◽  
High Dose Vitamin

Abstract Background With the lack of effective therapy, chemoprevention, and vaccination against SARS-CoV-2, focusing on the immediate repurposing of existing drugs gives hope of curbing the COVID-19 pandemic. A recent unbiased genomics-guided tracing of the SARS-CoV-2 targets in human cells identified vitamin D among the three top-scoring molecules manifesting potential infection mitigation patterns. Growing pre-clinical and epidemiological observational data support this assumption. We hypothesized that vitamin D supplementation may improve the prognosis of COVID-19. The aim of this trial is to compare the effect of a single oral high dose of cholecalciferol versus a single oral standard dose on all-cause 14-day mortality rate in COVID-19 older adults at higher risk of worsening. Methods The COVIT-TRIAL study is an open-label, multicenter, randomized controlled superiority trial. Patients aged ≥ 65 years with COVID-19 (diagnosed within the preceding 3 days with RT-PCR and/or chest CT scan) and at least one worsening risk factor at the time of inclusion (i.e., age ≥ 75 years, or SpO2 ≤ 94% in room air, or PaO2/FiO2 ≤ 300 mmHg), having no contraindications to vitamin D supplementation, and having received no vitamin D supplementation > 800 IU/day during the preceding month are recruited. Participants are randomized either to high-dose cholecalciferol (two 200,000 IU drinking vials at once on the day of inclusion) or to standard-dose cholecalciferol (one 50,000 IU drinking vial on the day of inclusion). Two hundred sixty participants are recruited and followed up for 28 days. The primary outcome measure is all-cause mortality within 14 days of inclusion. Secondary outcomes are the score changes on the World Health Organization Ordinal Scale for Clinical Improvement (OSCI) scale for COVID-19, and the between-group comparison of safety. These outcomes are assessed at baseline, day 14, and day 28, together with the serum concentrations of 25(OH)D, creatinine, calcium, and albumin at baseline and day 7. Discussion COVIT-TRIAL is to our knowledge the first randomized controlled trial testing the effect of vitamin D supplementation on the prognosis of COVID-19 in high-risk older patients. High-dose vitamin D supplementation may be an effective, well-tolerated, and easily and immediately accessible treatment for COVID-19, the incidence of which increases dramatically and for which there are currently no scientifically validated treatments. Trial registration ClinicalTrials.govNCT04344041. Registered on 14 April 2020 Trial status Recruiting. Recruitment is expected to be completed in April 2021.

scholarly journals High dose vitamin D supplementation does not affect biochemical bone markers in multiple sclerosis – a randomized controlled trial

BMC Neurology ◽  
2017 ◽  
Vol 17 (1) ◽  
Author(s):  
Trygve Holmøy ◽  
Jonas Christoffer Lindstrøm ◽  
Erik Fink Eriksen ◽  
Linn Hofsøy Steffensen ◽  
Margitta T. Kampman
Keyword(s):  
Multiple Sclerosis ◽  
Vitamin D ◽  
Randomized Controlled Trial ◽  
Bone Markers ◽  
Controlled Trial ◽  
Vitamin D Supplementation ◽  
High Dose ◽  
Randomized Controlled ◽  
Biochemical Bone Markers ◽  
High Dose Vitamin
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