Effects of Vitamin D Insufficiency in Man

Completed · Not applicable

Conditions studied: Vitamin D Deficiency

In brief

We would like to determine if vitamin D insufficiency exists in different ethnic groups, if it has an effect on bone mass and muscle function, if it has an impact on the function of the cells of the immune system, and if the functioning level of these systems can be improved by stabilizing the vitamin D levels to within normal limits.

Key facts

Study ID

NCT01848236

Run by

University of California, Los Angeles

People needed

300

Starts

2010-08-01

Expected to finish

2020-02-01

Last updated by the study team

2020-03-03

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• 25D levels <30 ng/ml (Vitamin D sufficient) OR <20 ng/ml (Vitamin D deficient)
• At least 18 years of age

You may not qualify if…

• Hypercalcemia
• Hyperparathyroidism
• Hyperthyroidism
• Hypercalciuria
• Renal disease
• Intestinal malabsorption any disorder that places the subject at risk for developing hypercalcemia or hypercalciuria during standard vitamin D replacement therapy owing to the presence of underlying dysregulated vitamin D metabolism (e.g., sarcoidosis, TB, etc)

Where it is running

• UCLA — Los Angeles, California, United States

Full record on ClinicalTrials.gov

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