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VIDPRESAE- Vitamin D to PREvent Severe Asthma Exacerbations

Vitamin D is a vitamin that has known effects on the immune system.  The immune system normally protects you against foreign bacteria and viruses.  In asthma and other allergic diseases, the immune system may be the cause for worsening symptoms.  The purpose of this study is to see if taking vitamin D lessens the number of asthma attacks in the children with asthma who have low blood vitamin D levels.

This research study will look at your child’s asthma in relation to vitamin D deficiency and asthma “flare ups”.  While all of the children will be on a steroid inhaler, half of the children will be given 4000 IU of vitamin D3; the other half will be given a placebo.  A placebo is a pill or liquid with no active medicine but looks just like the active medication.  The research team also wants to see if taking Vitamin D makes the steroid inhaler more effective.
It is hoped that information gained from this study may help us find out if vitamin D can actually protect against flare-ups of asthma symptoms.