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NCT02019875 · ClinicalTrials.gov registry record · Early Phase 1
CYP3A4 Activity and Mineral Homeostasis
A Early Phase 1 study of Vitamin D and Calcium Homeostasis, sponsored by University of Washington.
- Completed
- Registry status
- Early Phase 1
- Development phase
- 92
- Enrollment target
- 1
- Study location
NCT02019875: Completed Early Phase 1 study of Vitamin D and Calcium Homeostasis, sponsored by University of Washington.
NCT02019875 is a Early Phase 1 study of Vitamin D and Calcium Homeostasis that has completed, run by University of Washington. The registered enrollment target is 92 participants, above the 53-participant average among 2,764 other Early Phase 1 trials with a reported enrollment target (74% higher). The trial reports 1 study location across 1 state. According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT02019875, a Early Phase 1 study of Vitamin D and Calcium Homeostasis, has completed, sponsored by University of Washington.
- COMPLETED
- Registry status
- Early Phase 1
- Development phase
- 92 participants
- Enrollment target
- 1
- Study location
Study Summary
The purpose of this study is to determine whether changes in the activity of the enzyme CYP3A4 can change the Vitamin D and bone mineral homeostasis.
Primary Outcome
Serum 1, 25(OH) D3 Vitamin D
Conditions Studied
Interventions
- OTHER Placebo
- DRUG Rifampin
- DRUG Clarithromycin
- OTHER Grapefruit Juice
Study Locations (1)
Washington
- University of Washington - Seattle
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 92 participants |
| Start Date | 2014-06 |
| Est. Completion | 2020-12 |
| Phase | Early Phase 1 |
What the finished NCT02019875 record still lists
NCT02019875 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 92 participants, a relatively small participant target, above the 53-participant average among 2,764 other Early Phase 1 trials with a reported enrollment target (74% higher).
The record links to 1 condition, with Vitamin D and Calcium Homeostasis appearing as the primary indexed condition, and to 4 interventions - of which Placebo is the first listed.
NCT02019875 reports a single indexed study location in Washington.
Frequently Asked Questions
What is clinical trial NCT02019875 about?
NCT02019875 is a clinical study titled "CYP3A4 Activity and Mineral Homeostasis". The purpose of this study is to determine whether changes in the activity of the enzyme CYP3A4 can change the Vitamin D and bone mineral homeostasis.
What is the current status of trial NCT02019875?
This trial is currently completed. It is a Early Phase 1 study. The enrollment target is 92 participants. The study started on 2014-06. Estimated completion is 2020-12.
What conditions does trial NCT02019875 study?
This clinical trial studies the following conditions: Vitamin D and Calcium Homeostasis.
What interventions are being tested in trial NCT02019875?
The interventions under investigation include: Placebo (OTHER), Rifampin (DRUG), Clarithromycin (DRUG), Grapefruit Juice (OTHER).
Who is sponsoring clinical trial NCT02019875?
This trial is sponsored by University of Washington, which has 1,048 total clinical trials registered on ClinicalTrials.gov.
Where is trial NCT02019875 being conducted?
This trial has 1 study location across Washington. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT02019875's enrollment target sits among peer trials
92 229th of 2000 higher than 1,769 of 2,000 other Early Phase 1 trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Early Phase 1 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
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