UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000061696
Receipt number R000070594
Scientific Title A clinical trial to evaluate the efficacy of test food in alleviating premenstrual symptoms
Date of disclosure of the study information 2026/05/26
Last modified on 2026/05/26 16:14:52

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Basic information

Public title

A clinical trial to evaluate the efficacy of test food in alleviating premenstrual symptoms

Acronym

A clinical trial to evaluate the efficacy of test food in alleviating premenstrual symptoms

Scientific Title

A clinical trial to evaluate the efficacy of test food in alleviating premenstrual symptoms

Scientific Title:Acronym

A clinical trial to evaluate the efficacy of test food in alleviating premenstrual symptoms

Region

Japan


Condition

Condition

Healthy adult

Classification by specialty

Not applicable Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To evaluate the efficacy of test food on premenstrual symptoms over three consecutive menstrual cycles of intake

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Menstrual distress questionnaire (MDQ) Total Score and subscale score

Key secondary outcomes

Premenstrual Tension Syndrome Visual Analogue Scale (PMTS-VAS)


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


Institution consideration


Blocking


Concealment

No need to know


Intervention

No. of arms

2

Purpose of intervention

Prevention

Type of intervention

Food

Interventions/Control_1

Continuous intake of the test food (1 time a day) over three consecutive menstrual cycles

Interventions/Control_2

Continuous intake of the placebo food (1 time a day) over three consecutive menstrual cycles

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

40 years-old >

Gender

Female

Key inclusion criteria

(1) Healthy female participants who are aged 20 years or older and less than 40 years at the time of obtaining informed consent
(2) Participants in whom self-recognized premenstrual symptoms are confirmed during the preliminary screening and the pre-observation period
(3) Participants who report having a stable menstrual cycle length of 25 to 38 days
(4) Participants who report having a stable menstrual period duration of 3 to 7 days
(5) Participants who fully understand the purpose and details of the study and provide written informed consent to participate

Key exclusion criteria

(1) Participants who plan to become pregnant or breastfeed during the study period, and those who are pregnant or breastfeeding at the time of the preliminary screening
(2) Participants who wish to become pregnant during the study period
(3) Participants who are taking female hormone medications
(4) Participants who regularly use analgesics for menstrual pain
(5) Participants who have been diagnosed with gynecological disorders such as premenstrual dysphoric disorder (PMDD), premenstrual syndrome (PMS), breast cancer, cervical cancer, endometrial cancer, or ovarian cancer
(6) Participants who have serious diseases of the brain, liver, kidneys, heart, lungs, gastrointestinal system, hematologic system, endocrine system, or metabolic system
(7) Participants with a history of severe diseases that required medical treatment with pharmacotherapy
(8) Participants with chronic medical conditions that are under treatment
(9) Participants with a past or current history of mood disorders
(10) Participants with a Patient Health Questionnaire-9 (PHQ-9) score of 10 or higher
(11) Participants who are taking antidepressants or anxiolytics
(12) Participants who regularly use medications that may affect the study, including herbal medicines and contraceptives
(13) Participants who cannot discontinue the intake of foods rich in lactic acid bacteria or bifidobacteria (such as yogurt or lactic acid bacteria beverages) during the study period
(14) Participants who regularly use health foods or supplements that may affect the study (excluding those who can discontinue their use during the study period)
(15) Participants with allergies to dairy products or soy
(16) Participants with a BMI of 30 kg/m2 or above at the preliminary screening
(17) Participants who are judged unsuitable for the study by the investigator due to markedly abnormal anthropometric, physical, or clinical laboratory findings at the preliminary screening
The following items were entered in the 'Other ' section

Target sample size

140


Research contact person

Name of lead principal investigator

1st name Atsushi
Middle name
Last name Gomi

Organization

Yakult Honsha Co., Ltd.

Division name

Yakult Central Institute

Zip code

186-8650

Address

5-11 Izumi, Kunitachi-shi, Tokyo

TEL

042-577-8960

Email

atsushi-gomi@yakult.co.jp


Public contact

Name of contact person

1st name Hiroyasu
Middle name
Last name Shimada

Organization

EP Mediate Co., Ltd.

Division name

Development Department Trial Planning Section

Zip code

162-0814

Address

Acropolis TOKYO, 6-29 Shin-ogawamachi, Shinjuku-ku, Tokyo

TEL

090-5219-2774

Homepage URL


Email

shimada.hiroyasu767@eps.co.jp


Sponsor or person

Institute

EP Mediate Co., Ltd.

Institute

Department

Personal name



Funding Source

Organization

Yakult Honsha 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

Medical Station Clinic Research Ethics Committee

Address

3-12-8, Takaban, Meguro-ku, Tokyo

Tel

03-6452-2712

Email

epmd_fd-erb@eps.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

メディカルステーションクリニック (Medical station clinic) (東京都)


Other administrative information

Date of disclosure of the study information

2026 Year 05 Month 26 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 26 Day

Date of IRB

2026 Year 03 Month 26 Day

Anticipated trial start date

2026 Year 06 Month 01 Day

Last follow-up date

2027 Year 03 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

Additional exclusion criteria are described below.
(18) Participants who have participated in other clinical studies within one month prior to obtaining informed consent, or who wish to participate in such studies during the study period
(19) Participants who smoke 21 or more cigarettes per day
(20) Participants who consume 20 g or more of pure alcohol per day on at least four days per week
(21) Participants with markedly irregular eating habits, such as frequently skipping two or more meals per day
(22) Participants with irregular lifestyles, such as those engaged in shift work or night work
(23) Participants who are judged unsuitable for the study based on the results of a lifestyle questionnaire
(24) Participants who are judged by the investigator to be unsuitable for the study for other reasons


Management information

Registered date

2026 Year 05 Month 26 Day

Last modified on

2026 Year 05 Month 26 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000070594