# Effects of Vitamin D Replacement in Patients With Primary Hyperparathyroidism (PHPT)

> **NCT00538720** · PHASE1 · COMPLETED · sponsor: **M.D. Anderson Cancer Center** · enrollment: 22 (estimated)

## Conditions studied

- Hyperparathyroidism

## Interventions

- **DRUG:** Vitamin D
- **DEVICE:** Four-dimensional computed tomography (4DCT)

## Key facts

- **NCT ID:** NCT00538720
- **Lead sponsor:** M.D. Anderson Cancer Center
- **Sponsor class:** OTHER
- **Phase:** PHASE1
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2007-10
- **Primary completion:** 2018-05-30
- **Final completion:** 2018-05-30
- **Target enrollment:** 22 (ESTIMATED)
- **Last updated:** 2019-03-25


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00538720

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00538720, "Effects of Vitamin D Replacement in Patients With Primary Hyperparathyroidism (PHPT)". Retrieved via AI Analytics 2026-05-25 from https://api.ai-analytics.org/clinical/NCT00538720. Licensed CC0.

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