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NCT03649802 · ClinicalTrials.gov registry record · Phase 2
Vitamin D and Arterial Stiffness in Elderly
A Phase 2 study, sponsored by Texas Tech University Health Sciences Center.
- Completed
- Registry status
- Phase 2
- Development phase
- 52
- Enrollment target
NCT03649802: Completed Phase 2 study, sponsored by Texas Tech University Health Sciences Center.
NCT03649802 is a Phase 2 study that has completed, run by Texas Tech University Health Sciences Center. The registered enrollment target is 52 participants, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (61% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT03649802, a Phase 2 study, has completed, sponsored by Texas Tech University Health Sciences Center.
- COMPLETED
- Registry status
- Phase 2
- Development phase
- 52 participants
- Enrollment target
Study Summary
Investigators will examine arterial stiffness and pulse waveform analysis. Subjects with vitamin D insufficiency will be recruited. A double blind randomized controlled study will examine the effects of standard dose vitamin D3 (800 IU) versus higher dose vitamin D3 (5000 IU)-given on a daily basis.In order to understand mechanisms of action by which vitamin D would improve arterial stiffness investigators will use biomarkers. Oxidative and inflammatory stress will be measured by plasma F2-isoprostanes and Sulforaphane levels.
Primary Outcome
Indicator of arterial stiffness meters per second
Interventions
- DIETARY_SUPPLEMENT Low dose vitamin D3
- DIETARY_SUPPLEMENT High dose vitamin D3
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 52 participants |
| Start Date | 2018-08-16 |
| Est. Completion | 2021-12-31 |
| Phase | Phase 2 |
What the finished NCT03649802 record still lists
NCT03649802 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 52 participants, a relatively small participant target, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (61% lower).
The record links to 0 conditions, and to 2 interventions - of which Low dose vitamin D3 is the first listed.
NCT03649802 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT03649802 about?
NCT03649802 is a clinical study titled "Vitamin D and Arterial Stiffness in Elderly". Investigators will examine arterial stiffness and pulse waveform analysis. Subjects with vitamin D insufficiency will be recruited. A double blind randomized controlled study will examine the effects of standard dose vitamin D3 (800 IU) versus higher dose vitamin D3 (5000 IU)-given on a daily basis....
What is the current status of trial NCT03649802?
This trial is currently completed. It is a Phase 2 study. The enrollment target is 52 participants. The study started on 2018-08-16. Estimated completion is 2021-12-31.
What interventions are being tested in trial NCT03649802?
The interventions under investigation include: Low dose vitamin D3 (DIETARY_SUPPLEMENT), High dose vitamin D3 (DIETARY_SUPPLEMENT).
Who is sponsoring clinical trial NCT03649802?
This trial is sponsored by Texas Tech University Health Sciences Center, which has 76 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT03649802's enrollment target sits among peer trials
52 1181st of 2000 higher than 811 of 2,000 other Phase 2 trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Phase 2 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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