Study of beneficial effect of continuous algal food intake on the symptoms of Japanese ceder pollinosis a randomized, double-blind, placebo-controlled, parallel-group study

Study of beneficial effect of continuous algal food intake on the symptoms of Japanese ceder pollinosis a randomized, double-blind, placebo-controlled, parallel-group study - Study of beneficial effect of continuous algal food intake on the symptoms of Japanese ceder pollinosis

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000031378

Enrollment

Registered

2019-02-19

Start date

2018-02-26

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

algal food intake placebo control food intake

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1)Subjects who agree to participate in the current study with a written informed consent 2)Japanese who are 20 or more to less than 65 years old 3)Subjects who have symptoms of Japanese cedar pollinosis 4)Subjects who live in Osaka Prefecture, Kyoto City, Amagasaki City, Itami City, Nishinomiya City, Ashiya City, Kobe City

Exclusion criteria

Exclusion criteria: 1)Individuals using medical products 2)Individuals who have a history or merger of serious diseases of liver disease or renal, endocrine, cardiovascular, gastrointestinal, lung, blood, metabolism 3)Individuals who have had surgery on the gastrointestinal tract 4)Individuals who have received treatment for hyposensitization therapy in the past 5)Individuals judged inappropriate for the study by the principal

Design outcomes

Primary

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

Secondary

Measure	Time frame
Results of blood test feeling questionnaire	—

Countries

Japan

Contacts

Public ContactKazuyoshi Ootani

KOBELCO ECO-SOULUTIONS CO.,LTD Algae Business Promotion Dept.

k.otani@kobelco-eco.co.jp078-232-8223

Outcome results

None listed

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