Evaluation of improvement of arious symptoms of hay fever by intake of lactic acid bacteria-containing food Improvement of various symptoms of hay fever

Evaluation of improvement of arious symptoms of hay fever by intake of lactic acid bacteria-containing food Improvement of various symptoms of hay fever - Improvement of various symptoms of hay fever

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000030382

Enrollment

160

Registered

2018-01-13

Start date

2018-01-13

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 adults

Interventions

Test food: ingestion of food ontaining lactic acid bacteria 2 tablets/day, 12 weeks Placebo: intake of food not ontaining lactic acid bacteria 2 tablets/day, 12 weeks

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Japanese males and females aged 20 to 59 years old at the time of acquiring consent Persons who have been aware of various symptoms of Japanese cedar pollinosis for 2 years or more, or have a history of cedar pollinosis (mild to moderate) for 2 years or more Persons with symptoms of cedar pollinosis (sneezing, runny nose, stuffy nose, eye itching) in the past 2 years Persons who do not currently develop cedar pollinosis

Exclusion criteria

Exclusion criteria: Persons undergoing treatment for perennial rhinitis Persons undergoing hyposensitization therapy or hospital therapy for hay fever (excluding drug therapy) Persons who are taking steroids in hay fever drug therapy (excluding other antiallergic drugs and OTC drugs) Persons who are suffering from specific diseases and are undergoing outpatient medication treatment (excluding hay fever) Persons who are routinely taking medicines (lactobacillus preparations etc.) that are likely to affect the test results, or taking health foods (supplements that describe effectiveness against hay fever, but not foods such as yoghurt) During pregnancy or possibly pregnant, and those who are breastfeeding Persons who are likely to have allergic symptoms due to the test food component Persons participating in other clinical trials Persons who have a history of serious liver disorder, renal disorder, heart disease Persons who have a history of hepatitis or who are currently suffering from hepatitis Persons with advanced anemia Persons who are taking antiallergic drugs or being treated for atopic dermatitis, asthma, etc.

Design outcomes

Primary

Measure	Time frame
Questionnaire survey about various symptoms of hay fever before ingestion and after the end of ingestion period	—

Secondary

Measure	Time frame
Blood test Urine recovery (at our laboratory) Doctor's findings and evaluations Health diary Doctor's findings and evaluations (for health diary) Measurement of blood pressure and pulse	—

Countries

Japan

Contacts

Public ContactKo MASUDA

SOUKEN Co., Ltd Management Division

k_masuda@mail.souken-r.com03-5408-1555

Outcome results

None listed

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