UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000062630
Receipt number R000071262
Scientific Title Effects of Test Food on Brain Function: Randomized, Double-Blind, Placebo-Controlled, Parallel-Group Comparative Trial
Date of disclosure of the study information 2026/08/20
Last modified on 2026/08/18 14:32:22

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Basic information

Public title

Effects of Test Food on Brain Function: Randomized, Double-Blind, Placebo-Controlled, Parallel-Group Comparative Trial

Acronym

Effects of Test Food on Brain Function

Scientific Title

Effects of Test Food on Brain Function: Randomized, Double-Blind, Placebo-Controlled, Parallel-Group Comparative Trial

Scientific Title:Acronym

Effects of Test Food on Brain Function

Region

Japan


Condition

Condition

Male/female adults

Classification by specialty

Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To evaluate the effects of continuous consumption of test food on the maintenance and improvement of cognitive function in healthy young adults.

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Cognitive function test

Key secondary outcomes

Electroencephalography (EEG); electrocardiography; flicker test; subjective psychological assessments; subjective sleep assessments; blood biomarkers (neurotrophic factors, liver function); and fecal organic acid analysis.


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Double blind -all involved are blinded

Control

Placebo

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Prevention

Type of intervention

Food

Interventions/Control_1

Oral consumption of the test food for 12 weeks

Interventions/Control_2

Oral consumption of the placebo food for 12 weeks

Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

18 years-old <=

Age-upper limit

30 years-old >

Gender

Male and Female

Key inclusion criteria

1. Healthy males and females aged 18 to 29 years at the time of informed consent.
2. Individuals whose native language is Japanese.
3. Individuals who are able to visit the study site on the designated dates and undergo the required examinations and assessments.
4. Individuals who are able to give informed consent to participate in this study after receiving a detailed explanation of the protocol and understanding its contents.

Key exclusion criteria

1. Individuals who are unable to complete the study assessments due to conditions that interfere with testing (e.g., color vision deficiency, injuries or diseases affecting computer operation, or inability to complete the assessments even with assistive devices such as eyeglasses or hearing aids).
2. Individuals with a current or past diagnosis of dementia, psychiatric disorders (including depression and sleep disorders), neurological disorders, or cerebrovascular diseases, or those suspected of having any of these conditions.
3. Individuals with chronic diseases, such as diabetes mellitus, hypertension, or dyslipidemia, who routinely take medications.
4. Individuals who regularly consume Foods for Specified Health Uses, Foods with Function Claims, or health foods (including supplements) that may affect the study (e.g., products claiming benefits related to cognitive function).
5. Individuals who are taking medications that could affect the study, such as antibiotics, probiotics, medications for constipation, or laxatives and who are unable to restrict their use from the time of consent acquisition.
6. Individuals who consume foods rich in lactic acid bacteria, bifidobacteria, oligosaccharides, dietary fiber (excluding fresh foods), Bacillus subtilis var. natto, or butyric acid-producing bacteria at least five times per week. Individuals who consume such foods less than five times per week are eligible, provided that they do not increase their intake frequency or amount during the study period.
7. Individuals who are participating in, have completed within the past four weeks, or are planning to participate in clinical trials of pharmaceuticals or health foods.
8. Individuals with excessive alcohol intake or alcohol dependence.
9. Smoker
10. Individuals with current and/or past serious diseases of the heart, liver, kidneys, digestive organs, or other organs.

Target sample size

60


Research contact person

Name of lead principal investigator

1st name Fumiko
Middle name
Last name Nakamura

Organization

CPCC Company Limited

Division name

Clinical Support Department

Zip code

103-0021

Address

4F Daiwa Building, 3-3-10 Nihonbashi-Hongoku-Cho, Chuo-ku, Tokyo, Japan

TEL

03-6225-9001

Email

cpcc-contact@cpcc.co.jp


Public contact

Name of contact person

1st name Masanori
Middle name
Last name Numa

Organization

CPCC Company Limited

Division name

Clinical Planning Department

Zip code

103-0021

Address

4F Daiwa Building, 3-3-10 Nihonbashi-Hongoku-Cho, Chuo-ku, Tokyo, Japan

TEL

03-6225-9001

Homepage URL


Email

cpcc-contact@cpcc.co.jp


Sponsor or person

Institute

CPCC Company Limited

Institute

Department

Personal name



Funding Source

Organization

MEGMILK SNOW BRAND Co., Ltd.

Organization

Division

Category of Funding Organization

Profit organization

Nationality of Funding Organization



Other related organizations

Co-sponsor

Shibaura Institute of Technology

Name of secondary funder(s)



IRB Contact (For public release)

Organization

Institutional Review Board of Chiyoda Paramedical Care Clinic

Address

2F Daiwa Building, 3-3-10 Nihonbashi-Hongoku-Cho, Chuo-ku, Tokyo 103-0021, Japan

Tel

03-6225-9005

Email

IRB@cpcc.co.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2026 Year 08 Month 20 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Preinitiation

Date of protocol fixation

2026 Year 07 Month 21 Day

Date of IRB

2026 Year 07 Month 17 Day

Anticipated trial start date

2026 Year 08 Month 21 Day

Last follow-up date

2027 Year 02 Month 23 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

(Exclusion criteria continued)
11. Females who are pregnant, breastfeeding, or intending to become pregnant during the trial period.
12. Individuals with allergies to medications and/or foods.
13. Individuals with lactose intolerance or those who are aware that consumption of dairy products causes diarrhea.
14. Individuals who are aware that alcohol consumption causes diarrhea. However, individuals who do not habitually consume alcohol and who abstain from alcohol throughout the study period are eligible.
15. Individuals who frequently experience diarrhea.
16. Individuals who are aware that they are infected with viral hepatitis B or C, HIV, or syphilis.
17. Individuals who donated blood components or 200 mL of whole blood within the last month.
18. Male individuals who donated 400 mL of whole blood within the last 3 months.
19. Female individuals who donated 400 mL of whole blood within the last 4 months.
20. Male individuals whose blood collection volume in the last 12 months, combined with the planned volume of this study, exceeds 1200 mL.
21. Female individuals whose blood collection volume in the last 12 months, combined with the planned volume of this study, exceed 800 mL.
22. Individuals deemed unsuitable for participation in the trial by the principal investigator or sub-investigator.


Management information

Registered date

2026 Year 08 Month 20 Day

Last modified on

2026 Year 08 Month 18 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000071262