CI

At a glance

ClinicalIndex Comparison Record
Phase 3Completed· 876 enrolled
Drug / intervention
Vitamin D 3 cholecalciferol +1 moredietary
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT00920621
NCT00920621Phase 3Completed
CompareCT.gov

Randomized Trial: Maternal Vitamin D Supplementation to Prevent Childhood Asthma (VDAART)

Brigham and Women's Hospital·interventional·Posted Jun 15, 2009·Updated May 12, 2026

In Brief

A Phase 3 clinical trial evaluating Vitamin D 3 cholecalciferol and Vitamin D3 for Asthma. Completed, enrolled 876 participants across 3 sites.

Detailed Summary

Vitamin D supplementation given to pregnant women will prevent asthma in their offspring and children.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
ConditionsAsthma
CountriesUnited States
CollaboratorsNational Heart, Lung, and Blood Institute (NHLBI)

Timeline

Phase 3CompletedFinished
200920102011201220132014201520162017201820192020202120222023202420252026
First PostedJun 15, 2009
Enrollment StartSep 1, 2009
Primary CompletionJan 21, 2015
Study CompletionAug 1, 2023
TodayJul 2, 2026
Enrollment to primary: 5.4 yearsPosted 17.0 years ago

Interventions

Vitamin D 3 cholecalciferoldietary

Dosage form oral Dosage 4000IU Vitamin D 3 cholecalciferol

Vitamin D3dietary

4000 IU of vitamin D3 administered orally once a day during pregnancy