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| Trial name or title | Trial of Vitamin D3 Supplementation in Paediatric Asthma |
| Methods | Double‐blind, placebo‐controlled RCT |
| Participants | Children aged 6 to 16 years with physician‐diagnosed asthma |
| Interventions | 2000 IU vitamin D3 orally daily |
| Outcomes | Paediatric ACT (primary) |
| Starting date | October 2013 |
| Contact information | Dr Basil Elnazir, National Children's Hospital, Dublin, Ireland |
| Notes |
