# Is Vitamin D2 Treatment-associated Decrease in 25(OH)D3 Level a Reciprocal Phenomena?

> **NCT03035084** · PHASE4 · COMPLETED · sponsor: **King Faisal Specialist Hospital & Research Center** · enrollment: 100 (actual)

## Conditions studied

- Vitamin D Deficiency
- 25-Hydroxyvitamin D Concentration

## Interventions

- **DRUG:** Vitamin D3
- **DRUG:** Vitamin D2
- **DRUG:** Placebo oral capsule

## Key facts

- **NCT ID:** NCT03035084
- **Lead sponsor:** King Faisal Specialist Hospital & Research Center
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2017-02-15
- **Primary completion:** 2017-11-20
- **Final completion:** 2017-11-20
- **Target enrollment:** 100 (ACTUAL)
- **Last updated:** 2018-08-13


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03035084

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03035084, "Is Vitamin D2 Treatment-associated Decrease in 25(OH)D3 Level a Reciprocal Phenomena?". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT03035084. Licensed CC0.

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