# Vitamin D Metabolism and the Williams Syndrome

> **NCT00013962** · — · COMPLETED · sponsor: **National Center for Research Resources (NCRR)**

## Conditions studied

- Williams Syndrome

## Interventions

- **DRUG:** Vitamin D

## Key facts

- **NCT ID:** NCT00013962
- **Lead sponsor:** National Center for Research Resources (NCRR)
- **Sponsor class:** NIH
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** —
- **Primary completion:** —
- **Final completion:** —
- **Target enrollment:** — (—)
- **Last updated:** 2005-06-24


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00013962

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00013962, "Vitamin D Metabolism and the Williams Syndrome". Retrieved via AI Analytics 2026-06-25 from https://api.ai-analytics.org/clinical/NCT00013962. Licensed CC0.

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