# Effects of Vitamin D in Patients With Breast Cancer

> **NCT01948128** · PHASE2 · COMPLETED · sponsor: **Ottawa Hospital Research Institute** · enrollment: 83 (actual)

## Conditions studied

- Breast Cancer

## Interventions

- **DRUG:** Vitamin D3
- **OTHER:** Placebo

## Key facts

- **NCT ID:** NCT01948128
- **Lead sponsor:** Ottawa Hospital Research Institute
- **Sponsor class:** OTHER
- **Phase:** PHASE2
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2013-10
- **Primary completion:** 2015-09
- **Final completion:** 2015-09
- **Target enrollment:** 83 (ACTUAL)
- **Last updated:** 2016-02-03

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01948128

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01948128, "Effects of Vitamin D in Patients With Breast Cancer". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT01948128. Licensed CC0.

---

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