# The Effect of Vitamin K2 on Bone Turnover

> **NCT00548509** · PHASE4 · COMPLETED · sponsor: **Eisai Limited** · enrollment: 131 (actual)

## Conditions studied

- Osteoporosis

## Interventions

- **DRUG:** Menatetrenone (Vitamin K2)

## Key facts

- **NCT ID:** NCT00548509
- **Lead sponsor:** Eisai Limited
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2002-02-01
- **Primary completion:** 2013-01
- **Final completion:** 2013-01
- **Target enrollment:** 131 (ACTUAL)
- **Last updated:** 2018-10-29


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00548509

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00548509, "The Effect of Vitamin K2 on Bone Turnover". Retrieved via AI Analytics 2026-05-26 from https://api.ai-analytics.org/clinical/NCT00548509. Licensed CC0.

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