# PRevention of COVID-19 With Oral Vitamin D Supplemental Therapy in Essential healthCare Teams

> **NCT04483635** · PHASE3 · TERMINATED · sponsor: **St. Justine's Hospital** · enrollment: 34 (actual)

## Conditions studied

- COVID-19

## Interventions

- **DIETARY_SUPPLEMENT:** Placebo
- **DIETARY_SUPPLEMENT:** Vitamin D

## Key facts

- **NCT ID:** NCT04483635
- **Lead sponsor:** St. Justine's Hospital
- **Sponsor class:** OTHER
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** TERMINATED
- **Start date:** 2021-02-08
- **Primary completion:** 2021-05-04
- **Final completion:** 2021-05-25
- **Target enrollment:** 34 (ACTUAL)
- **Why stopped:** A premature discontinuation was recommended by the Data Safety Monitoring Board and agreed upon by the principal investigator, because the significantly lower recruitment than planned, in the context of mass vaccination of the target population.
- **Last updated:** 2021-05-28

## Collaborators

- [object Object]
- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04483635

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04483635, "PRevention of COVID-19 With Oral Vitamin D Supplemental Therapy in Essential healthCare Teams". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT04483635. Licensed CC0.

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