Study on the effect of a test food on concentration

Study on the effect of a test food on concentration in healthy adults: a randomized, double-blind, placebo-controlled, crossover study - Effect of a test food on concentration in healthy adults

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000046182

Enrollment

Registered

2022-02-01

Start date

2021-11-19

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

Participants consume a test food and then take a DVT task and Uchida kraepelin test. Participants consume a placebo food and then take a DVT task and Uchida kraepelin test.

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Healthy participant 2. A participant who can keep a calorie restriction during the trial 3. Not taking any medications during the trial 4. A participant who can get enough sleep the day before the trial 5. Not suspected COVID19 infection

Exclusion criteria

Exclusion criteria: 1. A participant who is determined to be hard to continue the trial from the questionnaire results 2. A participant who are not measured cerebral blood flow correctly 3. A participant who is determined to be hard to complete the tasks

Design outcomes

Primary

Measure	Time frame
Cerebral blood flow, DVT task	—

Secondary

Measure	Time frame
Uchida Kraepelin test, VAS questionnaire	—

Countries

Japan

Contacts

Public ContactMiki Sakazaki

Mitsui sugar Co., Ltd. Research Section, Research & Development Division

Miki.Sakazaki@mitsui-sugar.co.jp03-6759-2411

Outcome results

None listed

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