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The investigation study for the prevention effect of ingestion of lactoferrin-containing yogurt on infectious diseases (infectious gastroenteritis, influenza) in nursery school children.

The investigation study for the prevention effect of ingestion of lactoferrin-containing yogurt on infectious diseases (infectious gastroenteritis, influenza) in nursery school children. - The investigation of preventive effects of ingestion of lactoferrin-containing yogurt on infectious diseases in nursery school children.

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000039115
Enrollment
1200
Registered
2020-01-11
Start date
2014-09-02
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

Infectious gastroenteritis, influenza

Interventions

The LF group took drink yogurt containing lactoferrin (100 mg) was ingested 5 days (week in principle) / week and 1 bottle / day at breakfast in principle. The intake period was 3.5 months. The contro

Sponsors

Department of Preventive Medicine and Public Health, Shinshu University School of Medicine
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Nursery school children (3, 4 and 5 years old) 2. Participants who give sufficient explanation to nursery school children and their parents when participating in the study

Exclusion criteria

Exclusion criteria: 1. Persons with allergy to milk and dairy products 2. Persons who have serious diseases such as circulatory system, liver, kidney, respiratory system, digestive system, blood, endocrine system, metabolic system, etc. or who have a past history and are judged to be inappropriate to participate in the survey 3. Persons who plan to leave the school during the test period 4. The investigator has determined that participation in the study is inappropriate

Design outcomes

Primary

MeasureTime frame
The group receiving the commercially available yogurt containing lactoferrin and the comparative group were ingested for 3.5 months, and the incidence of infectious gastroenteritis due to norovirus, infectious gastroenteritis due to other causes, and respiratory infection due to influenza was evaluated within the period.

Countries

Japan

Contacts

Public ContactTeruomi Tsukahara

Shinshu University School of Medicine Occupational Health Laboratory, Department of Preventive Medicine and Public Health

tsukat@shinshu-u.ac.jp0263-37-3582

Outcome results

None listed

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