UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000058366
Receipt number R000066725
Scientific Title A randomized, placebo-controlled, double blind, parallel study to evaluate the effects of lactic acid bacteria on brain health and cognitive function in healthy children,
Date of disclosure of the study information 2026/04/01
Last modified on 2026/02/04 21:20:56

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Basic information

Public title

A study to evaluate the effects of lactic acid bacteria on brain health and cognitive function in healthy children,

Acronym

A study to evaluate the effects of lactic acid bacteria on brain health and cognitive function in healthy children,

Scientific Title

A randomized, placebo-controlled, double blind, parallel study to evaluate the effects of lactic acid bacteria on brain health and cognitive function in healthy children,

Scientific Title:Acronym

A randomized, placebo-controlled, double blind, parallel study to evaluate the effects of lactic acid bacteria on brain health and cognitive function in healthy children,

Region

Japan


Condition

Condition

Healthy subjects

Classification by specialty

Not applicable Child

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The object of this study is to evaluate the effects of a 12-week continuous intake of the test food on cognitive functions related to memory and learning in healthy children who are native Japanese speakers and are third- and fourth-grade elementary school students attending regular classes.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Executive function related to learning and memory, assessed by Digit Span, Go/No-Go task, and Stroop test

Key secondary outcomes

Autonomic nervous system activity (SDNN, LF, HF, LF/HF), Strengths and Difficulties Questionnaire (SDQ; parent-reported), Gut microbiota composition (T-RFLP 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

NO

Institution consideration

Institution is not considered as adjustment factor.

Blocking

YES

Concealment

Central registration


Intervention

No. of arms

2

Purpose of intervention

Prevention

Type of intervention

Food

Interventions/Control_1

12-week continuous intake of the test food containing lactic acid bacteria

Interventions/Control_2

12-week continuous intake of the placebo food without lactic acid bacteria

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

8 years-old <=

Age-upper limit

10 years-old >=

Gender

Male and Female

Key inclusion criteria

1) Subjects who are native Japanese speakers, currently enrolled in regular third- or fourth-grade elementary school classes at the time of consent (born between April 2, 2015 and April 1, 2017).
2) Subjects who are not receiving any medical treatment.
3) Subjects who are able to attend scheduled assessments and complete required records.
4) Subjects who, along with their legally authorized representatives (parents/guardians), have received sufficient explanation about the study and have voluntarily provided written informed consent.

Key exclusion criteria

1) Subjects who have been diagnosed with any neurodevelopmental disorders, intellectual disabilities, or other psychiatric conditions.
2) Subjects who have a history of serious disorders related to glucose metabolism, lipid metabolism, liver function, kidney function, heart, circulatory system, respiratory system, digestive system, endocrine system, immune system, or nervous system.
3) Subjects who have visual or auditory impairments or related disorders.
4) Subjects who have allergies to drugs or foods that may affect the study.
5) Subjects who are unable to refrain from consuming specified health foods, including Foods for Specified Health Uses (FOSHU), foods with functional claims, or other dietary supplements during the study period.
6) Subjects who are unable to consume the test food as instructed.
7) Subjects who are currently participating in another clinical trial or investigational study.
8) Subjects who are unable to follow the instructions of the principal investigator or are deemed unsuitable for participation by the principal investigator.

Target sample size

60


Research contact person

Name of lead principal investigator

1st name Takahiro
Middle name
Last name Ueda

Organization

Kaneka Corporation

Division name

Pharma & Supplemental Nutrition Solution Vehicle

Zip code

107-0052

Address

1-12-32, Akasaka, Minato-ku, Tokyo, Japan

TEL

03-3133-7349

Email

Takahiro.Ueda@kaneka.co.jp


Public contact

Name of contact person

1st name Soichi
Middle name
Last name Yoneda

Organization

Mibyou Life Science Inc.

Division name

Clinical Trial Division

Zip code

101-0061

Address

5F Tokuei Bldg., Kanda Misaki-cho, Chiyoda-ku, Tokyo, Japan

TEL

03-6256-9600

Homepage URL


Email

renraku@mibyou-ls.com


Sponsor or person

Institute

Mibyou Life Science Inc.

Institute

Department

Personal name



Funding Source

Organization

Kaneka Corporation

Organization

Division

Category of Funding Organization

Profit organization

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Mibyou Research Ethics Review Committee

Address

2-18-4 Kandamisakicho,Chiyoda-ku, Tokyo

Tel

03-6272-9163

Email

renraku@npo-mibyou.com


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 04 Month 01 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

Completed

Date of protocol fixation

2025 Year 05 Month 12 Day

Date of IRB

2025 Year 06 Month 04 Day

Anticipated trial start date

2025 Year 07 Month 19 Day

Last follow-up date

2025 Year 12 Month 06 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2025 Year 07 Month 03 Day

Last modified on

2026 Year 02 Month 04 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000066725