# Effect of Maternal Vitamin D3 Supplementation on Iron Status During Pregnancy and Early Infancy

> **NCT04764955** · PHASE3 · COMPLETED · sponsor: **The Hospital for Sick Children** · enrollment: 1300 (actual)

## Conditions studied

- Pregnancy

## Interventions

- **DIETARY_SUPPLEMENT:** Placebo
- **DIETARY_SUPPLEMENT:** Vitamin D3 (cholecalciferol)

## Key facts

- **NCT ID:** NCT04764955
- **Lead sponsor:** The Hospital for Sick Children
- **Sponsor class:** OTHER
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2014-03
- **Primary completion:** 2017-03
- **Final completion:** 2018-03
- **Target enrollment:** 1300 (ACTUAL)
- **Last updated:** 2023-06-18

## Collaborators

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- [object Object]
- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04764955

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04764955, "Effect of Maternal Vitamin D3 Supplementation on Iron Status During Pregnancy and Early Infancy". Retrieved via AI Analytics 2026-05-26 from https://api.ai-analytics.org/clinical/NCT04764955. Licensed CC0.

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