# CYP3A4 Activity and Mineral Homeostasis

> **NCT02019875** · EARLY_PHASE1 · COMPLETED · sponsor: **University of Washington** · enrollment: 92 (actual)

## Conditions studied

- Vitamin D and Calcium Homeostasis

## Interventions

- **DRUG:** Rifampin
- **DRUG:** Clarithromycin
- **OTHER:** Grapefruit Juice
- **OTHER:** Placebo

## Key facts

- **NCT ID:** NCT02019875
- **Lead sponsor:** University of Washington
- **Sponsor class:** OTHER
- **Phase:** EARLY_PHASE1
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2014-06
- **Primary completion:** 2020-12
- **Final completion:** 2020-12
- **Target enrollment:** 92 (ACTUAL)
- **Last updated:** 2023-04-19

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT02019875

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT02019875, "CYP3A4 Activity and Mineral Homeostasis". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT02019875. Licensed CC0.

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