UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000060051
Receipt number R000068427
Scientific Title Verification Study on the Effects of Test Food Intake on Skin - Randomized, Placebo-Controlled, Double-Blind, Parallel-Group Comparative Trial -
Date of disclosure of the study information 2025/12/11
Last modified on 2025/11/21 09:08:58

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Basic information

Public title

Verification Study on the Effects of Test Food Intake on Skin
- Randomized, Placebo-Controlled, Double-Blind, Parallel-Group Comparative Trial -

Acronym

Verification Study on the Effects of Test Food Intake on Skin

Scientific Title

Verification Study on the Effects of Test Food Intake on Skin
- Randomized, Placebo-Controlled, Double-Blind, Parallel-Group Comparative Trial -

Scientific Title:Acronym

Verification Study on the Effects of Test Food Intake on Skin

Region

Japan


Condition

Condition

No

Classification by specialty

Not applicable Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The purpose of this study is to evaluate the effects of consuming the test food on skin function and to confirm its safety.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Stratum corneum moisture content

Key secondary outcomes

*Secondary Endpoints
1) Dermal water content
2) Transepidermal water loss
3) Skin viscoelasticity
4) Visual assessment by specialist physician
5) Perceived VAS questionnaire

*Exploratory Endpoints
1) Bowel movement diary
2) Analysis of fecal microbiota, metabolites, and pH

*Safety Evaluation Items
1) Physical examination (blood pressure/pulse, weight/body fat percentage/BMI)
2) Laboratory tests (hematological tests, blood biochemistry tests, urinalysis)
3) Daily activity log
4) Physician interviews and adverse event investigation


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



Intervention

No. of arms

2

Purpose of intervention

Prevention

Type of intervention

Food

Interventions/Control_1

Oral intake of the test food (1 bottle in a day; 8 weeks)

Interventions/Control_2

Oral intake of the placebo food (1 bottle in a day; 8 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

35 years-old <=

Age-upper limit

65 years-old >

Gender

Male and Female

Key inclusion criteria

1) Men and women aged 35 years or older but under 65 years at the time of obtaining consent to participate in the trial.
2) Healthy individuals without chronic physical diseases, including skin diseases.
3) Individuals who perceive their skin as dry.
4) Individuals who have received sufficient explanation regarding the purpose and content of this trial, possess the capacity to consent, voluntarily volunteer to participate after fully understanding, and can provide written consent to participate in this trial.
5) Individuals who can attend the designated examination date and undergo the examination.
6) Individuals deemed suitable for participation in this trial by the principal investigator.

Key exclusion criteria

Individuals
1) currently suffering from any disease and undergoing drug treatment.
2) undergoing hormone replacement therapy.
3) with skin disease symptoms such as atopic dermatitis.
4) who have taken or applied medication for disease treatment within the past month.
5) with a history or current condition of serious disorders affecting the digestive organs, liver, kidneys, heart, lungs, blood, or mental health.
6) with a BMI of 30.0 kg/m2 or higher.
7) at risk of allergic reactions to components in the test food, or individuals at risk of severe allergic reactions to other foods or pharmaceuticals.
8) with a habit of excessive consumption of soy products such as tofu, natto, or soy milk.
9) with a current or recent (within 3 months) habit of regularly consuming FOSHU, functional foods, or health foods claiming benefits for skin, sleep, stress, or intestinal health.
10) whose average weekly alcohol consumption exceeds 40 g/day for men and 20 g/day for women, calculated as pure alcohol.
11) with smoking habits.
12) who may change their night work schedule or lifestyle habits during the trial period.
13) at risk of itching or other symptoms on evaluation sites during the trial due to seasonal allergies, and those who may use anti-allergy medications or nasal sprays.
14) unable to avoid intentional exposure to direct sunlight, such as sunbathing, during the trial period.
15) with a daily habit of using beauty devices such as facial beauty devices.
16) who have undergone cosmetic procedures or treatments on the evaluation site within the past 6 months, such as esthetic treatments or hyaluronic acid injections.
17) who are pregnant, breastfeeding, or who may become pregnant during the trial period.
18) currently participating in another human clinical trial, or individuals who have not completed 3 months since participating in another human clinical trial.
19) Other individuals deemed unsuitable for this trial by the principal investigator.

Target sample size

70


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 Ryoma
Middle name
Last name Shimizu

Organization

TES Holdings Co., Ltd.

Division name

Administrative Department of Clinical Trials

Zip code

110-0015

Address

6F Kairaku Building 2-7-5 Higashiueno Taito-ku Tokyo 110-0015, JAPAN

TEL

+81-3-6801-8480

Homepage URL


Email

r.shimizu@tes-h.co.jp


Sponsor or person

Institute

TES Holdings 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

Ueno-Asagao Clinic Ethical Review Committee

Address

6F Kairaku Building 2-7-5 Higashiueno Taito-ku Tokyo 110-0015, JAPAN

Tel

+81-3-6240-1162

Email

jimukyoku@tes-h.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



Other administrative information

Date of disclosure of the study information

2025 Year 12 Month 11 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

2025 Year 11 Month 18 Day

Date of IRB

2025 Year 11 Month 19 Day

Anticipated trial start date

2026 Year 01 Month 10 Day

Last follow-up date

2026 Year 04 Month 02 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2025 Year 12 Month 11 Day

Last modified on

2025 Year 11 Month 21 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000068427