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A Study on the Effect of Food Containing Plant Extract on Visual Function -A Randomized, Double-blind, Placebo-controlled, Parallel-group Study-

A Study on the Effect of Food Containing Plant Extract on Visual Function -A Randomized, Double-blind, Placebo-controlled, Parallel-group Study- - A Study on the Effect of Food Containing Plant Extract on Visual Function

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000051892
Enrollment
40
Registered
2023-08-18
Start date
2023-08-19
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

None listed

Interventions

Sponsors

KSO Corporation
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Males and females aged 40 to 79 years-old. 2) Subjects who do not have any diseases related to visual and/or cognitive function evaluation. 3) Subjects whose binocular static vision of 0.7 or higher (including corrected) 4) Subjects who can make self-judgment and are voluntarily giving written informed consent.

Exclusion criteria

Exclusion criteria: Subjects (who) 1) use supplements, functional foods, or drugs associated with eye fatigue recovery or lack of sleep or antioxidant 2) with ophthalmologic diseases such as glaucoma or other visual field constrictions 3) have a history of and/or contract serious diseases (eg, diabetes, liver disease, kidney disease, heart disease, cerebrovascular disease). 4) have a history and/or a surgical history of digestive disease affecting digestion and absorption. 5) are under treatment for or have a history of alcoholism. 6) taking medications or using eye drops related to eye strain and/or taking medications that affect the eyes 7) have declared allergic reaction to ingredients of test foods. 8) can't stop drinking from a day before each measurement 9) have alcohol intake more than approximately 20 g/day of pure alcohol equivalent and a habit of drinking not less than 4 days a week. 10) with extremely irregular eating habits and rhythm of life. 11) are shiftworker and/or midnight-shift worker. 12) have donated over 200 mL of blood and/or blood components within the last one month prior to the current study or over 400 mL of blood and/or blood components within the last three months prior to the current study. 13) are pregnant or planning to become pregnant or breastfeed during the study period. 14) are participating in or willing to participate in other clinical studies. 15) are judged as unsuitable for the current study by the investigator for other reasons.

Design outcomes

Primary

MeasureTime frame
Visual function test

Secondary

MeasureTime frame
Questionnaire Cognitive function test

Countries

Japan

Contacts

Public ContactYoshika Komori

KSO Corporation Clinical Trial Management department

eigyou27@kso.co.jp03-3452-7733

Outcome results

None listed

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