Clinical trial

DO IT Trial: Vitamin D Outcomes and Interventions In Toddlers

NCT01419262

StatusCOMPLETED

Study typeINTERVENTIONAL

Start date2011-09-01

PhasePHASE3

Study timeline

Study start (unknown)2011-09-01Date precision: month

Registry last updated2019-06-14

Observed by CureCurrent2026-10-07

Recorded dates are source observations, not predictions. Missing milestones are not estimated.

Conditions

Respiratory Tract Infectionsunresolved

Asthmaunresolved

Avitaminosisunresolved

Interventions

Vitamin D - Cholecalciferol 400 IUDRUG

Vitamin D3 - Cholecalciferol 2000 IUDRUG

Sponsors & collaborators

The Hospital for Sick Childrenlead sponsor

Mount Sinai Hospital, Canadacollaborator

Unity Health Torontocollaborator

Mapped research locations

TorontoOntario, Canada2

Registry source

Open the source record to verify current eligibility, contacts, locations and registry updates.

Open NCT01419262 on ClinicalTrials.gov ↗

Registry-derived research relationships: ClinicalTrials.gov. Raw condition and intervention labels remain distinct from canonical MONDO/RxNorm entities unless separately normalized.