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Effect of Daily Ingestion of Test Food on Immune Function: A Randomized, Double-Blind, Placebo-Controlled, Parallel Group Study

Effect of Daily Ingestion of Test Food on Immune Function: A Randomized, Double-Blind, Placebo-Controlled, Parallel Group Study - Effect of Daily Ingestion of Test Food on Immune Function

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000048355
Enrollment
100
Registered
2022-07-14
Start date
2022-07-19
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

Daily ingestion 2 sachets of test food for 12 weeks. Daily ingestion 2 sachets of placebo food for 12 weeks.

Sponsors

Hokkaido Information University
Lead Sponsor
SOPHY Inc.
Collaborator

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Subjects who agree to participate in this study with a written informed consent. 2. Japanese males and females between 40 and 65 years old at the time of screening test. 3. Subjects who are aware of their susceptibility to upper respiratory tract infections. 4. Subjects whose relatively low NK cell activity at the time of screening test.

Exclusion criteria

Exclusion criteria: 1. Subjects who are under physician's advice, treatment, and/or medication for autoimmune diseases, chronic inflammatory diseases or allergic disease. 2. Subjects who take antihypertensive agents, immunosuppressive drugs, and/or indomethacin. 3. Subjects who have been vaccinated within the last 4 weeks prior to the screening test. 4. Subjects who plan to get vaccinated between 4 weeks prior to the start and end of ingestion of test food, at the time of screening test. 5. Subjects with implantable electronic medical devices. 6. Subjects with serious cerebrovascular, cardiac, hepatic, renal, gastrointestinal diseases, and/or affected with infectious diseases requiring reports to the authorities. 7. Subjects with major surgical history relevant to the digestive system such as gastrectomy, gastrorrhaphy, enterectomy, etc. 8. Subjects with unusually high and/or low blood pressure and/or abnormal hematological data. 9. Subjects with severe anemia. 10. Pre- or post-menopausal women complaining of obvious physical changes. 11. Subjects who are at risk of having allergic reactions to drugs and/or foods. 12. Subjects who regularly take medicine, functional foods, and/or supplements which would affect immune function. 13. Subjects who regularly take barley. 14. Heavy smokers, alcohol addicts and/or subjects with disordered lifestyle. 15. Subjects who donated either 400 ml whole blood within 16 weeks (women), 12 weeks (men), 200 ml whole blood within 4 weeks (men and women), or blood components within 2 weeks (men and women), prior to the current study. 16. Pregnant or lactating women or women who expect to be pregnant during this study. 17. Subjects who currently participate in other clinical trials, or participated within the last 4 weeks prior to the current study. 18. Any other medical and/or health reasons unfavorable to participation in the current study, as judged by the principal investigator.

Design outcomes

Primary

MeasureTime frame
Physical Condition Questionnaire

Secondary

MeasureTime frame
NK cell activity, peripheral blood pDC activity, serum cytokines (IFN-alfa, IFN-gamma, IL-12), salivary secretory IgA

Countries

Japan

Contacts

Public ContactNaoyuki HONMA

Hokkaido Information University Health Information Science Center

hisc-acad.res@s.do-johodai.ac.jp011-385-4430

Outcome results

None listed

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