# Vitamin D Supplementation During Pregnancy for Prevention of Asthma in Childhood

> **NCT00856947** · PHASE1 · ACTIVE_NOT_RECRUITING · sponsor: **Copenhagen Studies on Asthma in Childhood** · enrollment: 600 (estimated)

## Conditions studied

- Asthma

## Interventions

- **DIETARY_SUPPLEMENT:** Cholecalciferol D3
- **OTHER:** Placebo tablet

## Key facts

- **NCT ID:** NCT00856947
- **Lead sponsor:** Copenhagen Studies on Asthma in Childhood
- **Sponsor class:** OTHER
- **Phase:** PHASE1
- **Study type:** INTERVENTIONAL
- **Status:** ACTIVE_NOT_RECRUITING
- **Start date:** 2009-03
- **Primary completion:** 2027-07
- **Final completion:** 2027-07
- **Target enrollment:** 600 (ESTIMATED)
- **Last updated:** 2026-03-19


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00856947

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00856947, "Vitamin D Supplementation During Pregnancy for Prevention of Asthma in Childhood". Retrieved via AI Analytics 2026-07-26 from https://api.ai-analytics.org/clinical/NCT00856947. Licensed CC0.

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