Vitamin D and Arterial Stiffness in Elderly
Public ClinicalTrials.gov record NCT03649802. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Treating Vitamin D Insufficiency in Community Dwelling Elderly to Improve Arterial Stiffness
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
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.
Study identification
- NCT ID
- NCT03649802
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 2
- Enrollment
- 52 participants
Conditions and interventions
Conditions
Interventions
- Low dose vitamin D3 Dietary Supplement
- High dose vitamin D3 Dietary Supplement
Dietary Supplement
Eligibility (public fields only)
- Age range
- 65 Years to 89 Years
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Aug 15, 2018
- Primary completion
- Dec 30, 2021
- Completion
- Dec 30, 2021
- Last update posted
- Mar 20, 2022
2018 – 2021
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Texas Tech University Health Sciences Center | Lubbock | Texas | 79430 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03649802, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Mar 20, 2022 · Synced Sep 10, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03649802 live on ClinicalTrials.gov.