Prevention of allergic march by vitamin D supplementation during infancy

Prevention of allergic march by vitamin D supplementation during infancy - Vitamin D mediated Prevention of Allergic march in Chiba (D-PAC)

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000034864

Enrollment

300

Registered

2018-11-12

Start date

2018-11-01

Completion date

Unknown

Last updated

2026-09-14

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

Conditions

Food allergy

Interventions

Vitamin D 10ug/day 6 months pracebo 6 months

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: term infant

Exclusion criteria

Exclusion criteria: 1) premature baby 2) Baby who has surgical disease (such as esophageal atresia, diaphragmatic hernia etc.) which need tube feeding or who can not take vitamin D 3) Babies judged to be ineligible by research facility director or research doctor.

Design outcomes

Primary

Measure	Time frame
Positive ratio of egg white specific IgE at 6 months of age	—

Secondary

Measure	Time frame
Vitamin D blood concentration at 6 months and 1 year of age Positive ratio of egg white specific IgE at 1 year of age Food allergy, atopic dermatitis, wheezing episodes at 1 year old of age Amount of regulatory T cell at 6 months and 1 year of age	—

Countries

Japan

Contacts

Public ContactTaiji Nakano

Chiba University Hospital Department of Pediatrics

t-nakano@chiba-u.jp043-226-2144

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Sep 19, 2026