# Non-inferiority of Lower Dose Calcium Supplementation During Pregnancy

> **NCT03350516** · PHASE3 · COMPLETED · sponsor: **Harvard School of Public Health (HSPH)** · enrollment: 22000 (actual)

## Conditions studied

- Pregnancy Related

## Interventions

- **DIETARY_SUPPLEMENT:** Daily 500 mg elemental calcium as calcium carbonate
- **DIETARY_SUPPLEMENT:** Daily1500 mg elemental calcium as calcium carbonate

## Key facts

- **NCT ID:** NCT03350516
- **Lead sponsor:** Harvard School of Public Health (HSPH)
- **Sponsor class:** OTHER
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2018-11-30
- **Primary completion:** 2022-11-03
- **Final completion:** 2022-12-16
- **Target enrollment:** 22000 (ACTUAL)
- **Last updated:** 2024-12-24

## Collaborators

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- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03350516

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03350516, "Non-inferiority of Lower Dose Calcium Supplementation During Pregnancy". Retrieved via AI Analytics 2026-07-03 from https://api.ai-analytics.org/clinical/NCT03350516. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*