Vitamin D Supplementation and Physical Function in Older Adults
Public ClinicalTrials.gov record NCT01179503. 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.
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Official title
Vitamin D Supplementation, Skeletal Muscle Gene Expression, and Physical Performance in Older Adults
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
A growing body of evidence suggests that vitamin D status is important in biologic processes involved in the maintenance of physical function. To advance the investigators understanding of the role of vitamin D in physical function, the investigators will conduct a feasibility pilot study to collect key information to help design a full-scale randomized trial to determine whether vitamin D supplementation will delay declines in physical function. The primary goals of the pilot study are to determine cost-effective strategies for identifying persons at high risk for functional decline with insufficient vitamin D levels, determine the serum vitamin D response to a vitamin D supplementation regimen designed to attain sufficient vitamin D levels, and provide preliminary data of key functional measures (balance, physical performance and muscle power) for the future larger study design. A secondary goal is to begin to examine potential mechanisms by which vitamin D supplementation may enhance physical performance by exploring the effects of vitamin D supplementation on changes in skeletal muscle gene expression.
Study identification
- NCT ID
- NCT01179503
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Early Phase 1
- Enrollment
- 16 participants
Conditions and interventions
Conditions
Interventions
- calcium Dietary Supplement
- Vitamin D plus calcium Dietary Supplement
Dietary Supplement
Eligibility (public fields only)
- Age range
- 70 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
- Jan 2010 (Type not available)
- Primary completion
- May 2011 (Actual)
- Completion
- May 2011 (Actual)
- Last update posted
- Aug 17, 2018
2010 – 2011
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Wake Forest University | Winston-Salem | North Carolina | 27157 | — |
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 NCT01179503, 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 Aug 17, 2018 · Synced Nov 11, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT01179503 live on ClinicalTrials.gov.