UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000060397
Receipt number R000063313
Scientific Title Evaluation of the nutritional lunchbox on junior and senior highschool students attending private tutoring school. Cross-over test.
Date of disclosure of the study information 2026/01/19
Last modified on 2026/01/18 13:01:46

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Basic information

Public title

Nutritinal luchbox trial at tutoring school.

Acronym

Nutritinal luchbox trial at tutoring school.

Scientific Title

Evaluation of the nutritional lunchbox on junior and senior highschool students attending private tutoring school. Cross-over test.

Scientific Title:Acronym

Evaluation of the nutritional lunchbox on junior and senior highschool students attending private tutoring school. Cross-over test.

Region

Japan


Condition

Condition

Japanese healthy junior and senior highschool students

Classification by specialty

Child

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To evaluate the effects of a strong nutritional lunchbox on students' motivation to learn and fatigue through a human intervention study.

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Subjective learning efficiency

Key secondary outcomes

Mental and physical complaints (fatigue, irritability, anxiety, somatic complaints)
Sleep quality
Mental and physical state during study
Stress during study
Skin condition


Base

Study type

Interventional


Study design

Basic design

Cross-over

Randomization

Randomized

Randomization unit

Individual

Blinding

Single blind -investigator(s) and assessor(s) are blinded

Control

No treatment

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Educational,Counseling,Training

Type of intervention

Food

Interventions/Control_1

Functional Lunch Boxes for 4 weeks, including 140g of sticky barley-rice, 230g of functional side dish and 2g of functional tea.

Interventions/Control_2

Regular meals daily taken for 4 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

12 years-old <=

Age-upper limit

18 years-old >=

Gender

Male and Female

Key inclusion criteria

1. Healthy junior and senior highschool students who attend Tokushinkan Academy.
2. Junior and senior high schoolstudents who have a personal smartphone and can prepare a google account.
3. Students who fully understand the significance, content, and purpose of this examination, and who have given their consent in writing to participate in this examination.

Key exclusion criteria

1. Subjects who are under physicians advice, treatment, and/or medication for schizophrenia, depression, mania, neurological disorders, and/or sleep disorders.
2. Subjects with serious cerebrovascular, cardiac, hepatic, renal, gastrointestinal diseases, and/or affected with infectious diseases requiring reports to the authorities.
3. Subjects with major surgical history relevant to the digestive system such as gastrectomy, gastrorrhaphy, enterectomy, etc.
4. Subjects with implantable electronic medical devices.
5. Subjects who are under nutritional advice by a physician.
6. Subjects who cannot continue to consume the test foods due to allergic reactions to drugs or foods.
7. Subjects who regularly use medicines (sleeping pills, psychotropic drugs, etc.) or health foods/supplements (glycine, gamma-aminobutyric acid, L-serine, L-theanine, L-ornithine, reduced coenzyme Q10, etc.) that affect stress and sleep.
8. Subjects with disordered lifestyle
9. Subjects who donated blood within 4 wks, prior to the current study.
10. Pregnant or lactating women or women who expect to be pregnant during this study.
11. Subjects who currently participate in other clinical trials or participated within the last 4 wks prior to the current study.
12. Subjects who have difficulty completing a full meal of the study food due to a small appetite.
13. Any other medical and/or health reasons unfavorable to participation in the current study, as judged by the principal investigator.

Target sample size

100


Research contact person

Name of lead principal investigator

1st name Katsuhisa
Middle name
Last name Tanaka

Organization

Flowing co. ltd.

Division name

Representative Director

Zip code

679-2162

Address

27-1, Noda, Kodera-cho, Himeji-city, Hyogo-prefecture, Japan

TEL

+81-79-232-6399

Email

tanaka@flow-net.jp


Public contact

Name of contact person

1st name Katsuhisa
Middle name
Last name Tanaka

Organization

Flowing co. ltd.

Division name

Representative Director

Zip code

679-2162

Address

27-1, Noda, Kodera-cho, Himeji-city, Hyogo-prefecture, Japan

TEL

+81-79-232-6399

Homepage URL


Email

uketuke@flow-net.jp


Sponsor or person

Institute

Flowing co. ltd.

Institute

Department

Personal name



Funding Source

Organization

Flowing co. ltd.

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

NARO-Style Human Subjects Research Ethics Review Committee

Address

27-1, Noda, Kodera-cho, Himeji-city, Hyogo-prefecture, Japan

Tel

+81-79-232-6399

Email

uketuke@flow-net.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 01 Month 19 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

46

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

2024 Year 05 Month 20 Day

Date of IRB

2024 Year 06 Month 10 Day

Anticipated trial start date

2024 Year 06 Month 21 Day

Last follow-up date

2026 Year 04 Month 01 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2026 Year 01 Month 18 Day

Last modified on

2026 Year 01 Month 18 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000063313