UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000061086
Receipt number R000069896
Scientific Title Research on the effects of fermentable dietary fiber intake and behavioral intervention on sleep and stress.
Date of disclosure of the study information 2026/03/27
Last modified on 2026/03/27 15:40:25

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Basic information

Public title

Research on the effects of fermentable dietary fiber intake and behavioral intervention on sleep and stress.

Acronym

Research on the effects of fermentable dietary fiber intake and behavioral intervention on sleep and stress.

Scientific Title

Research on the effects of fermentable dietary fiber intake and behavioral intervention on sleep and stress.

Scientific Title:Acronym

Research on the effects of fermentable dietary fiber intake and behavioral intervention on sleep and stress.

Region

Japan


Condition

Condition

Healthy Adults

Classification by specialty

Not applicable

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To exploratorily evaluate the effects of 4-week combined use of fermentable dietary fiber-containing food and behavioral intervention (meditation) on changes in sleep quality, stress levels, and the intestinal environment among healthy adult men and women aged 20 to 49.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Sleep quality (electroencephalogram and sleep-related questionnaires) at baseline and after 4 weeks of intake.

Key secondary outcomes

The following items at baseline and after 4 weeks of intake.
Various questionnaires regarding stress, defecation status, and skin concerns
Salivary total IgA
Intestinal microbiota
Fecal organic acids (acetic acid, propionic acid, succinic acid, lactic acid, iso-butyric acid, iso-valeric acid, n-butyric acid, n-valeric acid, and formic acid)
Cumulative days of cold symptoms


Base

Study type

Interventional


Study design

Basic design

Parallel

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

Prevention

Type of intervention

Food

Interventions/Control_1

Daily consumption of one bottle of fermentable dietary fiber-containing food (a total of 24 bottles) over the 4-week intervention period.
Perform meditation once daily before bedtime as much as possible for 4 weeks.

Interventions/Control_2

none

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

20 years-old <=

Age-upper limit

50 years-old >

Gender

Male and Female

Key inclusion criteria

1.Persons who received a sufficient explanation of the purpose and contents of the study, have the capacity to consent, applied with free will with sufficient understanding, and agreed to participate with a written document
2.Japanese aged 20 to 49 years at the time of providing informed consent
3.Persons who have concerns regarding sleep and stress

Key exclusion criteria

1.Persons with chronic illnesses receiving medical treatment or having a serious medical history.
2.Persons diagnosed with sleep disorders by a physician, such as sleep apnea syndrome or insomnia.
3.Persons with a history of or current treatment for psychiatric disorders, such as depression or anxiety disorders.
4.Persons taking psychotropic medications, including hypnotics, anxiolytics, or antidepressants.
5.Persons with severe chronic diseases, such as hypertension, diabetes, liver disease, or kidney disease.
6.Persons likely to develop seasonal allergic symptoms that may significantly affect sleep during the study period.
7.Persons whose sleep is disturbed by painful conditions, such as neuralgia or arthritis.
8.Persons working shifts or frequently traveling abroad with significant time zone changes.
9.Persons with a habit of excessive alcohol consumption.
10.Persons with a habit of excessive caffeine intake.
11.Persons with a smoking habit who may be affected by the arousal effects of nicotine.
12.Persons with a habit of strenuous exercise that may significantly affect sleep due to physical fatigue.
13.Persons who regularly practice meditation or have strict sleep habits that are difficult to modify.
14.Persons regularly using medications or health foods that may affect sleep, stress, or immunity.
15.Persons regularly using medications, health foods, or prebiotic or probiotic products that may affect defecation or the intestinal environment.
16.Persons with allergies to the test food.
17.Persons who habitually and actively consume dietary fiber.
18.Persons who have recently experienced or are likely to experience significant mental stress due to life events.
19.Persons with recent (within 1 month) or planned participation in other research.
20.Persons judged ineligible by the principal investigator.
21.Persons who are pregnant, breastfeeding, or planning pregnancy.

Target sample size

70


Research contact person

Name of lead principal investigator

1st name Takamasa
Middle name
Last name Masuda

Organization

Healthcare Systems Co., Ltd.

Division name

Clinical Research Department

Zip code

105-0004

Address

Park Place Bld. 5F, 5-27-1, Shinbashi, Minato-ku, Tokyo, JAPAN

TEL

03-6809-2722

Email

masudat@hc-sys.jp


Public contact

Name of contact person

1st name Takamasa
Middle name
Last name Masuda

Organization

Healthcare Systems Co., Ltd.

Division name

Clinical Research Department

Zip code

105-0004

Address

Park Place Bld. 5F, 5-27-1, Shinbashi, Minato-ku, Tokyo, JAPAN

TEL

03-6809-2722

Homepage URL


Email

masudat@hc-sys.jp


Sponsor or person

Institute

Healthcare Systems Co., Ltd.

Institute

Department

Personal name



Funding Source

Organization

Mizkan 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

The Ethics Committee of Healthcare Systems Co., Ltd.

Address

1-14-18, Shirakane, Showa-ku, Nagoya, Aichi, JAPAN

Tel

03-6809-2722

Email

soumu@hc-sys.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 03 Month 27 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 03 Month 27 Day

Date of IRB


Anticipated trial start date

2026 Year 04 Month 20 Day

Last follow-up date

2026 Year 06 Month 30 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 03 Month 27 Day

Last modified on

2026 Year 03 Month 27 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000069896