CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 86 enrolled
Drug / intervention
D3 2000 IU/day +3 moredietary
Likely dose
D3 2000 IU/dayfrom record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT01554241
NCT01554241N/ACompleted
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Optimizing Vitamin D in the Elderly

University of California, San Francisco·interventional·Posted Mar 14, 2012·Updated Feb 18, 2015

In Brief

A clinical study evaluating D3 2000 IU/day, D3 4000 IU/day, and 2 other interventions for Deficiency of Vitamin D3. Completed, enrolled 86 participants across 1 site.

Detailed Summary

Vitamin D deficiency is highly prevalent in older people in the absence of vitamin D supplementation. The limited data available show marked inter-individual variability in response to vitamin D supplementation in very old, frail elderly with almost 25% remaining vitamin D deficient (25-OH D \< 20 ng/mL) when receiving the currently recommended 800 IU/day vitamin D. This proposal is for exploratory research on the use of a wide range of oral vitamin D3 doses in frail elderly living in controlled living environments.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
ConditionsDeficiency of Vitamin D3
CountriesUnited States
Collaborators--

Timeline

N/ACompletedFinished
201220132014201520162017201820192020202120222023202420252026
First PostedMar 14, 2012
Enrollment StartSep 1, 2012
Primary CompletionSep 1, 2014
TodayJul 2, 2026
Enrollment to primary: 2 yearsPosted 14.3 years ago

Interventions

D3 2000 IU/daydietary

2000 IU/day D3

D3 4000 IU/daydietary

vitamin D3 4000 IU/day

D3 50,000 IU weeklydietary

vitamin D3 50,000 IU/week

vitamin D3 800 IU/daydietary

vitamin D3 800 IU/day