CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 273 enrolled
Drug / intervention
Vitamin D3 +1 moredietary
Likely dose
Not stated in 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/NCT00472823
NCT00472823N/ACompleted
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Determination of RDA for Vitamin D in Caucasian and African American Women

Creighton University·interventional·Posted May 14, 2007·Updated Mar 14, 2016

In Brief

A clinical study evaluating Vitamin D3 and Calcium Citrate (Citracal) for Osteoporosis and Aging. Completed, enrolled 273 participants across 1 site.

Detailed Summary

The purpose of this study is to examine the effects of several doses of vitamin D on hormones related to bone, calcium absorption, bone density and muscle strength.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
ConditionsOsteoporosis, Aging
CountriesUnited States
CollaboratorsNational Institute on Aging (NIA), Office of Dietary Supplements (ODS), University of Nebraska

Timeline

N/ACompletedFinished
200720082009201020112012201320142015201620172018201920202021202220232024202520262027
First PostedMay 14, 2007
Enrollment StartApr 1, 2007
Primary CompletionAug 1, 2011
TodayJul 2, 2026
Enrollment to primary: 4.3 yearsPosted 19.1 years ago

Interventions

Vitamin D3dietary

Orally for one year

Calcium Citrate (Citracal)dietary

Orally for one year; dosage adjusted so that calcium intake is 1200-1400mg daily