UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000061841
Receipt number R000070742
Scientific Title Effects of Plant-Derived ingredients on Sleep [g2026003]
Date of disclosure of the study information 2026/06/19
Last modified on 2026/06/09 11:40:48

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Basic information

Public title

Effects of Plant-Derived ingredients on Sleep

Acronym

Effects of Plant-Derived ingredients on Sleep

Scientific Title

Effects of Plant-Derived ingredients on Sleep [g2026003]

Scientific Title:Acronym

Effects of Plant-Derived ingredients on Sleep [g2026003]

Region

Japan


Condition

Condition

Not applicable

Classification by specialty

Not applicable Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To investigate the effect of plant-derived extracts on sleep.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Exploratory

Trial characteristics_2


Developmental phase

Not applicable


Assessment

Primary outcomes

Mean percentage of NREM(Non-Rapid Eye Movement) stage N3 sleep on Wednesday-Friday nights after 2-week intake of the test product containing plant-derived ingredients.

Key secondary outcomes



Base

Study type

Interventional


Study design

Basic design

Cross-over

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

Treatment

Type of intervention

Food

Interventions/Control_1

Participants will take the active test product once daily for 2 consecutive weeks, followed by a 1-week washout period, and then take the placebo test product once daily for 2 consecutive weeks.

Interventions/Control_2

Participants will take the placebo test product once daily for 2 consecutive weeks, followed by a 1-week washout period, and then take the active test product once daily for 2 consecutive 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

30 years-old <=

Age-upper limit

59 years-old >=

Gender

Male

Key inclusion criteria

1. Japanese men aged 30-59 years who were born and raised in Japan, and whose cohabiting family members were also born and raised in Japan.
2. Individuals who self-report that their sleep is light/shallow or easily interrupted.
3. Individuals who agree to wear a wearable device (Fitbit).
4. Individuals with an AIS (Athens Insomnia Scale) >= 6 and < 16.
5. Individuals whose weekday (Monday-Friday) wake-up time is 9 am or earlier, from the month immediately prior to enrollment through the study period.

Key exclusion criteria

1. Sleep apnea diagnosed within past 1 year, or suspected based on snoring.
2. BMI >= 35 kg/m^2.
3. Urination >= 3 times/night (nocturia).
4. Difficulty maintaining continuous night sleep due to caregiving/cohabitants and/or living environment.
5. Scheduled major medical intervention during study (e.g., hospitalization, surgery).
6. Severe underlying disease (cardiac, hepatic, or renal).
7. History of psychiatric disorders (e.g., depression, ADHD).
8. Current continuous use, or planned start during study: hypnotics, antidepressants, or anxiolytics.
9. Continuous use within past 1 month (>= 3 times/week), or planned start during study: sleep-related foods with function claims and/or supplements.
10. Allergic reactions to specific foods (e.g., anaphylaxis with respiratory distress).
11. Metal allergy.
12. Prone to skin irritation from alcohol swabs, adhesive gel, or medical tape.
13. Skin conditions at device sites (forehead, behind ear, chest, wrist, instep).
14. Prior similar tests: device wearing caused insomnia or daily-life interference (portable EEG (electroencephalogram), skin temperature logger, wearable).
15. Strong anxiety or fear about wearing/attaching devices.
16. Expected prolonged water activities (except bathing) and/or excessive sweating during study.
17. Night shifts/rotating shifts, or scheduled night shifts during study.
18. Scheduled travel with time zone changes (jet lag) during study.
19. Heavy alcohol consumption.
20. Another study participation at consent, or planned participation during the period.
21. Self or family employed by healthcare-related companies.
22. Deemed inappropriate by PI (principal investigator) (or principal physician/investigator).

Target sample size

36


Research contact person

Name of lead principal investigator

1st name Satoko
Middle name
Last name Fukagawa

Organization

Kao Corporation

Division name

Human Health Care Products Research Lab.

Zip code

131-8501

Address

2-1-3, Bunka, Sumida-ku, Tokyo, 131-8501, JAPAN

TEL

+81-70-3297-0978

Email

fukagawa.satoko@kao.com


Public contact

Name of contact person

1st name Takaya
Middle name
Last name Suganuma

Organization

Human Health Care Products Research Lab.

Division name

Kao Corporation

Zip code

131-8501

Address

2-1-3, Bunka, Sumida-ku, Tokyo, 131-8501, JAPAN

TEL

+81-70-3297-0986

Homepage URL


Email

suganuma.takaya@kao.com


Sponsor or person

Institute

Kao Corporation

Institute

Department

Personal name



Funding Source

Organization

Kao Corporation

Organization

Division

Category of Funding Organization

Profit organization

Nationality of Funding Organization



Other related organizations

Co-sponsor

Cross Marketing Group Inc.

Name of secondary funder(s)



IRB Contact (For public release)

Organization

Human Research Ethics Committee, Kao Corporation

Address

2-1-3 Bunka, Sumida-ku, Tokyo 131-8501, JAPAN

Tel

+81-3-5630-9064

Email

morisaki.naoko@kao.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 06 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


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 05 Month 29 Day

Date of IRB

2026 Year 05 Month 29 Day

Anticipated trial start date

2026 Year 06 Month 29 Day

Last follow-up date

2026 Year 08 Month 31 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 06 Month 09 Day

Last modified on

2026 Year 06 Month 09 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000070742