Vitamin D and Severe Asthma Exacerbations

ClinicalTrials.gov ID: NCT01921894

Open the official record

This page only displays public information reproduced from the official ClinicalTrials.gov record NCT01921894. It adds no medical advice, opinions, or eligibility judgments. The official record remains the source of truth for eligibility criteria, enrollment, and contact information.

View official ClinicalTrials.gov record → Back to search

ClinicalTrials.gov public records Last synced Nov 14, 2026, 8:19 PM EST

All trial information on this site comes from the official ClinicalTrials.gov public API (clinicaltrials.gov/api/v2), run by the U.S. National Library of Medicine. We only display that public information; we do not add opinions, endorsements, or any other intent. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase I Trial for Children With Vitamin D Insufficiency and High Risk of Severe Asthma Exacerbations

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This study of vitamin D is designed to assess both the safety and efficacy of potential doses (2,000 IU/day and 4,000 IU/day) in raising a vitamin D level to a normal range in a short period of time (e.g. 4 weeks or less) compared to 200 IU/day. In children with vitamin D insufficiency or deficiency who are at risk for severe asthma exacerbations, we hypothesize that both vitamin D supplementation with 4,000 IU/day and 2,000 IU/day will safely achieve normal vitamin D levels, but that the higher dose (4,000 IU/day) will result in a larger proportion of subjects achieving this level at 4 and 8 weeks.

Study identification

NCT ID: NCT01921894
Recruitment status: Completed
Study type: Interventional
Phase: Phase 1
Lead sponsor: University of Pittsburgh; Other
Enrollment: 48 participants

Conditions and interventions

Conditions

Asthma

Interventions

Cholecalciferol Dietary Supplement

Dietary Supplement

Eligibility (public fields only)

Age range: 6 Years to 14 Years
Sex: All
Healthy volunteers: Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date: Aug 2013 (Type not available)
Primary completion: Jan 2015 (Actual)
Completion: Jan 2015 (Actual)
Last update posted: Mar 23, 2017

2013 – 2015

United States locations

U.S. sites: 1
U.S. states: 1
U.S. cities: 1

Facility	City	State	ZIP	Site status
Children's Hospital of Pittsburgh of UPMC	Pittsburgh	Pennsylvania	15224	—

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows: Public field values for ClinicalTrials.gov record NCT01921894, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do: No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from: Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh: Last update posted Mar 23, 2017 · Synced Nov 14, 2026