# The Effect of Inactive and Active Vitamin D on Serum Sclerostin/dickkopf1 Levels

> **NCT01765010** · PHASE4 · UNKNOWN · sponsor: **Seoul National University Hospital** · enrollment: 88 (estimated)

## Conditions studied

- Osteoporosis

## Interventions

- **DRUG:** Calcitriol
- **DRUG:** Alfacalcidol
- **DRUG:** Cholecalciferol
- **DRUG:** Placebo

## Key facts

- **NCT ID:** NCT01765010
- **Lead sponsor:** Seoul National University Hospital
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** UNKNOWN
- **Start date:** 2013-01
- **Primary completion:** 2013-03
- **Final completion:** 2013-03
- **Target enrollment:** 88 (ESTIMATED)
- **Last updated:** 2013-01-10


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01765010

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01765010, "The Effect of Inactive and Active Vitamin D on Serum Sclerostin/dickkopf1 Levels". Retrieved via AI Analytics 2026-05-25 from https://api.ai-analytics.org/clinical/NCT01765010. Licensed CC0.

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