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Your journey
1What's a trial
4Get in touch
More info
You can access this
clinical trial
if you have
Cystic Fibrosis
and you are
over 6
years old
This is a second phase trial assessing
efficacy and side effects of the new treatment.
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The purpose

The vast majority of Cystic Fibrosis (CF) patients worldwide are vitamin D insufficient. There is no evidence of benefit of vitamin D supplementation for CF patients yet. However, descriptive cross-sectional studies suggest that vitamin D might be beneficial with respect to bone health, as well as to the newly described "non-classical" functions of vitamin D such as the potential anti-diabetic and immunomodulatory effects. To prove causation, and to determine which serum vitamin D concentration is optimal for CF patients, vitamin D supplementation interventional studies are needed, such as our trial.

Provided treatments

  • : Supplementation with vitamin D2/D3

Locations near you

Unfortunately, there are no recruiting locations near you. Please check the list with all locations below.
Tris trial is registered with FDA with number: NCT01321905. The sponsor of the trial is Karolinska Institutet and it is looking for 15 volunteers for the current phase.
Official trial title:
5-month Pilot Intervention Study on Vitamin D in Patients With Cystic Fibrosis