Vitamin and Asthma Study

Status

Completed

Phases

Phase 4

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT01447173

Enrollment

Registered

2011-10-06

Start date

2010-12-31

Completion date

2011-09-30

Last updated

2012-10-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Asthma

Keywords

Asthma, Pulmonary Function Test, Vitamin D

Brief summary

The study looks at how vitamin D supplement will improve the severity of asthma and lung function as well as biomarkers in asthmatic children.

Interventions

DRUGVitamin D

Vitamin D 2000 IU daily pill Vitamin D 400 IU daily pill

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

7 Years to 17 Years

Healthy volunteers

Inclusion criteria

* History of asthma (under control)otherwise in good general health

Exclusion criteria

* Poorly controlled asthma * Taking daily multivitamin or vitamin D supplementation * Taking oral steroid medication * History of bronchopulmonary dysplasia or chronic lung disease, extreme prematurity, congenital heart disease, significant renal dysfunction or primary kidney disease, endocrinologic abnormalities of calcium metabolism or parathyroid disorders

Design outcomes

Primary

Measure	Time frame
Change in Pulmonary Function Test (PFT) after vitamin D supplementation	4 weeks
Change in Asthma Control Test (ACT) scores after vitamin D supplementation	4-week

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026