# Influence of Kidney Performance and Magnesium on Formation of (OH)2-vitamin D3

> **NCT04237480** · — · COMPLETED · sponsor: **University Hospital, Basel, Switzerland** · enrollment: 50000 (actual)

## Conditions studied

- Hydroxylase Deficiency

## Interventions

- **DIAGNOSTIC_TEST:** serum value 1,25(OH)2 vitamin D

## Key facts

- **NCT ID:** NCT04237480
- **Lead sponsor:** University Hospital, Basel, Switzerland
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2017-01-01
- **Primary completion:** 2018-12-31
- **Final completion:** 2019-05-28
- **Target enrollment:** 50000 (ACTUAL)
- **Last updated:** 2020-02-11


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04237480

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04237480, "Influence of Kidney Performance and Magnesium on Formation of (OH)2-vitamin D3". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT04237480. Licensed CC0.

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