# The Effects of Vitamin D and Calcium Supplementation to Parathyroid Hormone in CHB Patients Treated With TDF

> **NCT05313477** · PHASE4 · COMPLETED · sponsor: **Mahidol University** · enrollment: 64 (actual)

## Conditions studied

- Parathyroid Hormone
- Tenofovir Disoproxil Fumarate
- Chronic Hepatitis B Virus
- Vitamin D

## Interventions

- **DRUG:** Ergocalciferol Capsules
- **DRUG:** Calcium carbonate

## Key facts

- **NCT ID:** NCT05313477
- **Lead sponsor:** Mahidol University
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2022-05-01
- **Primary completion:** 2023-08-31
- **Final completion:** 2023-11-30
- **Target enrollment:** 64 (ACTUAL)
- **Last updated:** 2024-09-05


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05313477

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05313477, "The Effects of Vitamin D and Calcium Supplementation to Parathyroid Hormone in CHB Patients Treated With TDF". Retrieved via AI Analytics 2026-05-25 from https://api.ai-analytics.org/clinical/NCT05313477. Licensed CC0.

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