Effects of hojicha on the attention during driving: placebo-controlled single-blind crossover study

Effects of hojicha on the attention during driving: placebo-controlled single-blind crossover study - Effects of hojicha on the attention during driving: placebo-controlled single-blind crossover study

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000038702

Enrollment

Registered

2019-12-02

Start date

2019-12-05

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

single ingestion two times

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1) Age: 45 and over, less than 60 2) Sex: Males and females with Japanese nationality 3) Those who are aware of a decline in cognitive function 4) Those who are driving on a daily basis 5) Non-smoker 6) Those who have not obtained a Type 2 driver's license

Exclusion criteria

Exclusion criteria: 1)Currently in treatment with medication or seeing a doctor for treatment 2)Previous history of hepatic disorder or severe disorder related to kidney, endocrine, cardiovascular system, gastro-intestine, lung, blood, or metabolism, or currently presence of complications 3)Previous history of drug allergy or food allergy 4)Regular intake of a food product or supplements with a possible influence on cognitive function 5)Regular intake of drug with a possible influence on cognitive function 6)Extreme faddiness 7)Extremely irregular lifestyle such as a dietary pattern and a sleeping pattern 8)Suspicion of insomnia 9)Presence or previous history of mental disorder (depression, etc.) 10)Presence or previous history of alcoholism 11)Current participation in another clinical trial or participation in another clinical trial within the last three months 12)Irregular work hours such as working on night shift 13)Those who received diagnosis of diseases related to dementia such as Alzheimer's disease, MCI 14)Pregnant 15)Hearing impaired person 16)Those with eye abnormalities such as eye diseases 17)People with eye diseases such as "cataracts, infections, trauma, strabismus" within the past half year 18)Person wearing glasses when driving 19)People who use astigmatism or hard contacts while driving 20)Those who usually drive left-hand drive cars 21)Other than the above, the principal investigator judged that the subject was ineligible for the study.

Design outcomes

Primary

Measure	Time frame
Behavior during driving after single ingestion	—

Countries

Japan

Contacts

Public ContactChika Tagata

ITO EN, Ltd Central Research Institute

chika-yokoyama@itoen.co.jp0548-54-1247

Outcome results