Last updated on November 2019

Vitamin D Supplementation in Children With Obesity-Related Asthma


Are you eligible to participate in this study?

You may be eligible for this study if you meet the following criteria:

  • Conditions: Vitamin D Deficiency | Pediatric Obesity | Asthma
  • Age: Between 6 - 17 Years
  • Gender: Male or Female

Inclusion Criteria:

  • Body mass index greater than or equal to 85% for age and sex
  • Physician-diagnosed asthma
  • Ongoing relationship with asthma provider responsible for asthma care
  • Serum 25(OH) D level 10 ng/ml to less than 30 ng/ml at screening visit based on local laboratory test
  • Ability to swallow pills similar in size to the vitamin D preparation to be used
  • Signed consent form from parent, legal guardian or caregiver and signed assent from participant (as appropriate)
  • Females of childbearing years must not be pregnant, must not be lactating and must agree to practice adequate birth control method
  • Child and parent, legal guardian, or caregiver must speak English or Spanish

Exclusion Criteria:

  • Known diseases of calcium metabolism or the parathyroid
  • History of renal insufficiency or kidney stones
  • Known liver failure or history of abnormal liver function tests
  • History of Williams syndrome, sarcoidosis, or granulomatous disease
  • Active tuberculosis
  • Spot urine calcium/creatinine ration greater than 0.37 (calcium and creatinine measured in mg/ml). This can be repeated following adequate hydration
  • Clinical evidence of rickets
  • Taking supplemental vitamin D greater than equal to 1000 IU per day

Recruitment Status: Closed


Brief Description Eligibility Contact Research Team


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