# A Trial of Vitamin D and Health Advice for the Prevention of Upper Respiratory Tract Infections

> **NCT01158560** · PHASE3 · COMPLETED · sponsor: **St. Joseph's Healthcare Hamilton** · enrollment: 600 (actual)

## Conditions studied

- Upper Respiratory Tract Infections
- Rhinovirus
- Infections

## Interventions

- **DIETARY_SUPPLEMENT:** cholecalciferol (vitamin D3)
- **BEHAVIORAL:** Gargling
- **DIETARY_SUPPLEMENT:** Placebo

## Key facts

- **NCT ID:** NCT01158560
- **Lead sponsor:** St. Joseph's Healthcare Hamilton
- **Sponsor class:** OTHER
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2010-09
- **Primary completion:** 2011-10
- **Final completion:** 2011-10
- **Target enrollment:** 600 (ACTUAL)
- **Last updated:** 2012-03-05

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01158560

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01158560, "A Trial of Vitamin D and Health Advice for the Prevention of Upper Respiratory Tract Infections". Retrieved via AI Analytics 2026-06-25 from https://api.ai-analytics.org/clinical/NCT01158560. Licensed CC0.

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