Cluster-randomised, Double-Blind, Placebo-Controlled Trial of Vitamin D Supplementation for the Prevention of Influenza and Other Respiratory Infections in Sheltered Accommodation (ViDiFlu)

NCT01069874 Phase 2/Phase 3 COMPLETED

Purpose: The study null hypothesis is that vitamin D supplementation will not influence time to acute respiratory tract infection in sheltered accommodation residents.

Details

Lead sponsor	Barts & The London NHS Trust
Phase	Phase 2/Phase 3
Status	COMPLETED
Enrolment	240
Start date	2010-03
Completion	2013-04

Conditions

• Respiratory Tract Infections
• Influenza

Interventions

• Cholecalciferol (Vitamin D/Vigantol oil)
• Miglyol oil

Primary outcomes

• Time to first respiratory tract infection (upper or lower) in sheltered accommodation residents — One year

Countries

United Kingdom