The effect of the drink containing Lactobacillus powder on host immunity: a randomized, double blind, placebo-controlled study.

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000016194

Enrollment

100

Registered

2015-01-13

Start date

2015-01-16

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

Healthy Adult

Interventions

12week 1pack per day Once a day Administer study drugs to subjects within 12 weeks. 12week 1pack per day Once a day Administer placebo to subjects within 12 weeks.

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: -Japanese males and females aged 30-65 -Those who are in low NK activity relatively.

Exclusion criteria

Exclusion criteria: -Those believed to be ingesting a drug(s) that may influence test results -Those believed to be routinely ingesting health food that may influence test results -Those who are pregnant, likely to be pregnant, or breast-feeding -Those who are Alcoholism -Those who may have allergy to ingredients of the test material -Participants in other clinical tests -Those with a medical history of severe hepatic disorders, renal disorders, or cardiovascular diseases -Those who have contracted or have hepatitis -Those with severe anemia -those who have inoculated influenza vaccine within 4 weeks . -those who take a yogurt or a probiotic supplement

Design outcomes

Primary

Measure	Time frame
NK activity	—

Secondary

Measure	Time frame
?life questionnaire (fever and cold-like symptoms) ?salivary s-Ig A ?neutrophil phagocytosis function. ?lymphocyte blastoid transformation by Con-A	—

Countries

Japan

Outcome results

None listed

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