Healthy adults
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Age 20 to under 70 2. Japanese men and women 3. BMI >=18.5 kg/m^2 and <30.0 kg/m^2 4. History of at least one upper respiratory tract infection per year 5. Regular contact with others at least once a week through work or social activities 6. Ability to enter electronic diaries via smartphone or PC 7. Received thorough explanation of study purpose and content, fully understood, voluntarily consented to participate, and provided written informed consent
Exclusion criteria
Exclusion criteria: 1. Currently receiving outpatient treatment for any disease or taking medication, including Kampo (as-needed use permitted) 2. Under physician-supervised dietary or exercise therapy 3. Current or past history of serious illness 4. Atopic dermatitis, allergic rhinitis (seasonal or perennial), bronchial asthma, chronic bronchitis, or other immune-related disorders 5. Consumes yogurt, lactic acid bacteria, or bifidobacteria-containing foods three or more times per week 6. Regular use (three or more days per week) of over-the-counter drugs, quasi-drugs, specified health foods, supplements, or unwillingness to refrain from starting new intake during the study 7. Vaccinated against influenza, COVID-19, or other infections within one month prior to first visit, or plans to be vaccinated during the study 8. Plans to use medications affecting immune function or gut environment (e.g., anti-allergy drugs, antibiotics, probiotics, laxatives) during the study 9. Scheduled for endoscopy, barium examination, or H. pylori eradication during the study 10. Current or past drug or food allergies 11. Irregular lifestyle due to night shifts or rotating shifts 12. Plans to significantly change lifestyle habits (diet, sleep, exercise, etc.) during the study 13. Excessive alcohol consumption (>=40g pure alcohol per day) 14. Plans for overseas travel during the study 15. Pregnant, breastfeeding, or planning pregnancy during the study 16. Blood donation of >200ml within 1 month or >400ml within 3 months prior to screening 17. Participation in another clinical study within 1 month prior to consent, currently participating, or planning to participate during the study 18. Deemed unsuitable for participation by the principal investigator
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| -Health status questionnaire -Aging markers | — |
Secondary
| Measure | Time frame |
|---|---|
| -Immune function-related biomarkers -Gut microbiota -QOL Questionnaire -Physical examination -Incidence of adverse events and side effects | — |
Countries
Japan
Contacts
IMEQRD Co., Ltd Planning and Sales Department