A Randomized, Double Blind, Comparative Study Of STATUS D3&#9415; (vitamin D3) Versus Placebo In Children Aged Between 7 And 15 Years Old to prevent infectious diseases including influenza and to improve atopic dermatitis

A Randomized, Double Blind, Comparative Study Of STATUS D3&#9415; (vitamin D3) Versus Placebo In Children Aged Between 7 And 15 Years Old to prevent infectious diseases including influenza and to improve atopic dermatitis - Preventive Effects of Vitamin D on Infectious Diseases and Allergic conditions Trials for Children Study: PEDIATRICS

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000001373

Enrollment

300

Registered

2008-10-01

Start date

2008-11-01

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

elementary shool, junior high school children

Interventions

vitamin D3 placebo

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Elementary school and junior high school children Obtaining written formed informed consent

Exclusion criteria

Exclusion criteria: 1. already taking vitamin D3 or active form of vitamin D 2. past history of urethral stone, or having underlying diseases related with calcium and/or bone metabolism 3. known allergy to sesame, gelatin, d-solvitor, 4. difficulty in swallowing capsules for 4 months 5. during or within 1 year after chemotherapy or immunocompromised conditions 6. known to move during study period 7. other reasons that doctor judges impossible to attend the study

Design outcomes

Secondary

Measure	Time frame
gastric enteritis, febrile diseases, admission to hospital, absent days from school, changes of child behavior check list and improvement of atopic dermatitis	—

Primary

Measure	Time frame
doctor-diagnosed influenza	—

Countries

Japan

Contacts

Public ContactEmi Suzuki

Jikei University School of Medicine Division of Clinical Research and Development

urashima@jikei.ac.jp03-3433-1111

Outcome results

None listed

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

A Randomized, Double Blind, Comparative Study Of STATUS D3&amp;#9415; (vitamin D3) Versus Placebo In Children Aged Between 7 And 15 Years Old to prevent infectious diseases including influenza and to improve atopic dermatitis