UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000062300
Receipt number R000071185
Scientific Title A Study on the Effects of Continuous Intake of the Test Food on sleep quality in menopausal women: A randomized, double-blind, placebo-controlled, parallel-group study
Date of disclosure of the study information 2026/07/22
Last modified on 2026/07/22 11:18:23

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Basic information

Public title

A Study on the Effects of Continuous Intake of the Test Food on sleep quality in menopausal women

Acronym

A Study on the Effects of Continuous Intake of the Test Food on sleep quality in menopausal women

Scientific Title

A Study on the Effects of Continuous Intake of the Test Food on sleep quality in menopausal women: A randomized, double-blind, placebo-controlled, parallel-group study

Scientific Title:Acronym

A Study on the Effects of Continuous Intake of the Test Food on sleep quality in menopausal women: A randomized, double-blind, placebo-controlled, parallel-group study

Region

Japan


Condition

Condition

Healthy participants

Classification by specialty

Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To investigate the effects of 12-week continuous intake of the test food on sleep quality in healthy Japanese women aged 40 to 64 years who are dissatisfied with their sleep quality through a randomized, double-blind, placebo-controlled, parallel-group study.

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1

Confirmatory

Trial characteristics_2

Pragmatic

Developmental phase

Not applicable


Assessment

Primary outcomes

(1) Actual values of sleep time in Oguri-Shirakawa-Azumi Sleep Questionnaire MA version (OSA-MA) after 12 weeks of intake

Key secondary outcomes

(1) Actual values of sleep time in OSA-MA after 6 weeks of intake
(2) Change and rate of change from baseline in sleep time in OSA-MA after 6 and 12 weeks of intake
(3) Actual values, change, and rate of change from baseline in sleepiness on rising, initiation and maintenance of sleep, frequent dreaming, recovery from fatigue, and each question item in OSA-MA after 6 and 12 weeks of intake
(4) Actual values, change, and rate of change from baseline in total score and vasomotor, mental, and physical nervous symptoms, and each question item in Simplified Menopausal Index (SMI) after 12 weeks of intake
(5) Actual values, change, and rate of change from baseline in TMD score, TA, DD, AH, VA, FI, CB, F, and each question item in Profile of Mood States 2nd Edition (POMS-2) Adult Short Form after 12 weeks of intake
(6) Actual values, change, and rate of change from baseline in Visual Analog Scale (VAS) (shoulder discomfort, lower back discomfort, eye fatigue) after 6 and 12 weeks of intake
(7) Urinary equol concentration after isoflavone intake and its change from baseline after 12 weeks of intake
(8) Number of equol producers and its change from baseline after 12 weeks of intake


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Double blind -all involved are blinded

Control

Placebo

Stratification

YES

Dynamic allocation


Institution consideration


Blocking

NO

Concealment



Intervention

No. of arms

2

Purpose of intervention

Prevention

Type of intervention

Food

Interventions/Control_1

Continuous intake of the test food for 12 weeks

Interventions/Control_2

Continuous intake 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

40 years-old <=

Age-upper limit

64 years-old >=

Gender

Female

Key inclusion criteria

(1) Healthy Japanese women aged 40 to 64 years.
(2) Individuals who had menstruation within the past 1 year and are irregular or less than 5 years postmenopausal.
(3) Individuals whose total score of Simplified Menopausal Index (SMI) is 50 or less.
(4) Individuals who are dissatisfied with their sleep quality.
(5) Individuals who feel temporary discomfort such as shoulder pain.
(6) Individuals who have received sufficient explanation regarding the purpose and contents of this study, have the capacity to consent, fully understand, volunteer of their own free will, and provide electronic informed consent.
(7) Individuals judged by the principal investigator to have no problems participating in the study based on the interview during the pre-observation period.
(8) Among those who meet the criteria (1) to (7) above and do not meet the exclusion criteria, those who have lower scores for sleep time in the OSA sleep questionnaire during the web-screening and pre-observation period.

Key exclusion criteria

(1) History/treatment of mental illness, sleep apnea, hypersomnia, narcolepsy, insomnia, or valvular heart disease.
(2) History/treatment of malignancy, cerebrovascular, heart, liver, kidney, hematologic, or endocrine disease.
(3) Undergoing treatment for gynecological diseases (e.g., menopausal disorders, dysmenorrhea).
(4) History of oophorectomy or hysterectomy.
(5) History/treatment of gastrointestinal disease (e.g., gastrectomy, resection; excluding appendectomy alone).
(6) Subjective sleep disorder symptoms (snoring, daytime sleepiness, choking, gasping, insomnia, or witnessed apnea).
(7) Nocturia disrupting sleep.
(8) Having an infant under 1 year old at home.
(9) Bed-sharing with a toddler.
(10) Living with and caring for a person requiring nursing care.
(11) Sharing bedding with others.
(12) Over 5 years postmenopausal.
(13) Lactating, pregnant, possibly pregnant, or planning pregnancy during the study.
(14) Receiving hormone replacement therapy.
(15) Regular use of oral contraceptives or Kampo medicine.
(16) Regular use of supplements for menopausal relief (e.g., equol).
(17) Regular use of supplements/foods/beverages for fatigue, stress, sleep, joint discomfort, or eye strain.
(18) Daily soy isoflavone intake of 50 mg or more.
(19) Treatment/medication for chronic diseases affecting study results.
(20) Current smoker.
(21) Quit smoking within 3 months before informed consent.
(22) Habitual alcohol drinker.
(23) Extremely irregular sleep or dietary habits.
(24) Expected major changes in environment, diet, or exercise during the study.
(25) Potential allergy to the study food.
(26) Current, recent (within 4 weeks), or planned participation in other clinical trials.
(27) Otherwise judged ineligible by the principal investigator.

Target sample size

66


Research contact person

Name of lead principal investigator

1st name Soma
Middle name
Last name Ode

Organization

Macromill Carenet, Inc.

Division name

Clinical Research Solution Division

Zip code

108-0075

Address

Shinagawa East One Tower 11F, 2-16-1 Konan, Minato-ku, Tokyo, Japan

TEL

03-6716-7108

Email

umin_info@macromillcarenet.jp


Public contact

Name of contact person

1st name Yumi
Middle name
Last name Kimoto

Organization

Macromill Carenet, Inc.

Division name

Clinical Research Solution Division

Zip code

108-0075

Address

Shinagawa East One Tower 11F, 2-16-1 Konan, Minato-ku, Tokyo, Japan

TEL

03-6716-7108

Homepage URL


Email

umin_info@macromillcarenet.jp


Sponsor or person

Institute

Macromill Carenet, Inc.

Institute

Department

Personal name



Funding Source

Organization

FUJICCO CO., LTD.

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

Ethical Committee of Kobuna Orthopedics Clinic

Address

311-2 Joto-machi, Maebashi-shi, Gumma

Tel

027-212-5608

Email

sagawa@mc-connect.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

医療法人公雄会こぶな整形外科医院倫理審査委員会


Other administrative information

Date of disclosure of the study information

2026 Year 07 Month 22 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 09 Day

Date of IRB

2026 Year 07 Month 09 Day

Anticipated trial start date

2026 Year 08 Month 19 Day

Last follow-up date

2026 Year 12 Month 15 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 07 Month 22 Day

Last modified on

2026 Year 07 Month 22 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000071185