Study of beneficial effects of citrus juice fermented with lactic acid bacteria on the symptoms of Japanese cedar pollinosis; a randomized, double-blind, placebo-controlled trial

Study of beneficial effects of citrus juice fermented with lactic acid bacteria on the symptoms of Japanese cedar pollinosis; a randomized, double-blind, placebo-controlled trial - Study of beneficial effects of citrus juice fermented with lactic acid bacteria on the symptoms of Japanese cedar pollinosis

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000025924

Enrollment

Registered

2017-01-31

Start date

2017-02-01

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

Japanese cedar pollinosis

Interventions

Taking 125ml of citrus juice fermented with lactic acid bacteria every day for 8 weeks during pollen scattering season. Taking 125ml of unfermented citrus juice (placebo) every day for 8 weeks during

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: The subjects who experienced the symptoms of Japanese cedar pollinosis in the last pollen scattering season and whose Japanese cedar pollen-specific IgE levels are positive.

Exclusion criteria

Exclusion criteria: 1)Those who has allergy to the test beverage and citrus 2)Pregnant woman and those at risk of pregnancy 3)Woman who are planning pregnancy 4)Lactating woman 5)The subject who are judged inappropriate for the study by the doctor

Design outcomes

Primary

Measure	Time frame
The symptoms of Japanese cedar pollinosis after starting consumption of test beverage	—

Secondary

Measure	Time frame
Results of blood test / Quality of life(QOL)	—

Countries

Japan

Contacts

Public ContactShuichi Suzuki

National Hospital Organization Shimoshizu National Hospital Department of Pediatrics

214sy01@hosp.go.jp043-422-2511

Outcome results

None listed

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