A randomized, double blind, comparative study of vitamin D3 versus placebo in small children with asthma to prevent asthma attack

A randomized, double blind, comparative study of vitamin D3 versus placebo in small children with asthma to prevent asthma attack - ATP XII

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000004160

Enrollment

400

Registered

2010-10-01

Start date

2010-10-01

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

asthma (2 - 5 years old)

Interventions

vitamin D3 supplement placebo

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Age 2 &#8211; 5 years old children who have been diagnosed as asthma by collaborating doctors. 2. Drugs of steroid inhalation has not been used for. 3. Obtained informed consent

Exclusion criteria

Exclusion criteria: 1. Not using vitamin D supplement or active vitamin D 2. Past history incubation and respiratory treatment admission due to RS virus infection urinary stone 3. Chronic disease including fracture mental retardation swallowing disturbance 4. other difficulties judged by the charged doctor

Design outcomes

Primary

Measure	Time frame
frequency of asthma attack diagnosed by collaborating medical doctors	—

Secondary

Measure	Time frame
Improvement of IgE RIST, RAST, SCORAD, changes of ACT score reduce of drug usage	—

Countries

Japan

Contacts

Public ContactMitsuyoshi Urashima

Jikei University School of Medicine Molecular Epidemiology

03-3433-1111

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026