# A New Active Vitamin D, ED-71 for Osteoporosis

> **NCT00144456** · PHASE3 · COMPLETED · sponsor: **Chugai Pharmaceutical** · enrollment: 1056 (actual)

## Conditions studied

- Osteoporosis

## Interventions

- **DRUG:** ED-71
- **DRUG:** Alfacalcidol
- **DRUG:** ED-71 placebo
- **DRUG:** Alfacalcidol placebo

## Key facts

- **NCT ID:** NCT00144456
- **Lead sponsor:** Chugai Pharmaceutical
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2004-09
- **Primary completion:** 2008-09
- **Final completion:** 2008-10
- **Target enrollment:** 1056 (ACTUAL)
- **Last updated:** 2013-08-09


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00144456

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00144456, "A New Active Vitamin D, ED-71 for Osteoporosis". Retrieved via AI Analytics 2026-08-18 from https://api.ai-analytics.org/clinical/NCT00144456. Licensed CC0.

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