UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000058172
Receipt number R000066502
Scientific Title Verification of the effect of the use of the test product on stress -Randomized crossover controlled trial-
Date of disclosure of the study information 2026/03/31
Last modified on 2026/03/27 14:45:34

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Basic information

Public title

Verification of the effect of the use of the test product on stress -Randomized crossover controlled trial-

Acronym

Verification of the effect of the use of the test product on stress

Scientific Title

Verification of the effect of the use of the test product on stress -Randomized crossover controlled trial-

Scientific Title:Acronym

Verification of the effect of the use of the test product on stress

Region

Japan


Condition

Condition

Healthy adults

Classification by specialty

Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The study will examine the effect of the test product on stress when used by women who suffer from acne.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Exploratory

Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Changes in salivary stress markers/indicators due to the use of the test product.

Key secondary outcomes

Changes in psychological stress induced by the test product.
Changes in heart rate and brain waves due to the use of the test product.
Questionnaire regarding skin condition and stress level prior to measurement.


Base

Study type

Interventional


Study design

Basic design

Cross-over

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -no one is blinded

Control

Placebo

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

3

Purpose of intervention

Treatment

Type of intervention

Other

Interventions/Control_1

Have participants smell the test product for 1 minute

Interventions/Control_2

Apply the test product to their face with their hands for 1 minute

Interventions/Control_3

Have participants wipe with the test product for 1 minute

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

18 years-old <=

Age-upper limit


Not applicable

Gender

Female

Key inclusion criteria

1) Healthy female university students aged 18 or older who suffer from acne
2) Non-smokers
3) Not receiving medical treatment for hypertension, diabetes, mental illness, sleep disorders, or serious illnesses
4) Participants who have received an explanation of the study, fully understood the contents, and provided their own informed consent

Key exclusion criteria

1) Heavy alcohol drinkers (average alcohol intake of 60g or more per day)
2) Individuals who have undergone hormone replacement therapy or are taking oral contraceptives within the past year
3) Individuals who are using drugs that affect the secretion of cortisol (steroids, phenytoin, phenobarbital)
4) Individuals with extremely irregular eating habits, or those with irregular lifestyles such as shift workers or night shift workers
5) Individuals taking foods for specified health uses, foods with functional claims, health foods (including supplements), etc. that take into consideration their effects on the autonomic nervous system and sleep
6) Individuals with blocked noses due to hay fever or other conditions that make it difficult to distinguish between different scents
7) Individuals who are allergic to the test products
8) Individuals who prefer fragrance-free products, or those who dislike the scent of the test product.
9) Individuals who are pregnant, wish to become pregnant, or are breastfeeding.
10) Individuals with irregular menstrual cycles (average menstrual cycle of 24 days or less, or 39 days or more).
11) Individuals who are regularly visiting a clinic for acne treatment.
12) Individuals with atopic skin.
13) Individuals who have previously experienced abnormal skin reactions such as redness, swelling, itching, irritation, discoloration (e.g., vitiligo), or hyperpigmentation after using cosmetic products containing ethanol, isopropylmethylphenol, or dipotassium glycyrrhizate.

Target sample size

7


Research contact person

Name of lead principal investigator

1st name Machiko
Middle name
Last name Nishioka

Organization

KOBAYASHI Pharmaceutical Co., Ltd.

Division name

Life Science Research Department R&D Headquarters

Zip code

567-0057

Address

1-30-3, Toyokawa, Ibaraki-city, Osaka 567-0057 Japan

TEL

072-640-0121

Email

m.nishioka@kobayashi.co.jp


Public contact

Name of contact person

1st name Shuu
Middle name
Last name Imai

Organization

KOBAYASHI Pharmaceutical Co., Ltd.

Division name

Life Science Research Department R&D Headquarters

Zip code

567-0057

Address

1-30-3, Toyokawa, Ibaraki-city, Osaka 567-0057 Japan

TEL

072-640-0121

Homepage URL


Email

sh.imai@kobayashi.co.jp


Sponsor or person

Institute

KOBAYASHI Pharmaceutical Co., Ltd.

Institute

Department

Personal name



Funding Source

Organization

KOBAYASHI Pharmaceutical Co., Ltd.

Organization

Division

Category of Funding Organization

Profit organization

Nationality of Funding Organization



Other related organizations

Co-sponsor

Otemon Gakuin Educational Foundation

Name of secondary funder(s)



IRB Contact (For public release)

Organization

Shiba Palace Clinic Ethics Review Committee

Address

6F DaiwaA Hamamatucho Bld., 1-9-10 Hamamatsucho, Minato-ku, Tokyo

Tel

03-5408-1599

Email

shiba_palace@s-palace-clinic.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

追手門学院大学 安威キャンパス(大阪府)


Other administrative information

Date of disclosure of the study information

2026 Year 03 Month 31 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

Completed

Date of protocol fixation

2025 Year 06 Month 12 Day

Date of IRB

2026 Year 06 Month 12 Day

Anticipated trial start date

2025 Year 06 Month 13 Day

Last follow-up date

2025 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

2025 Year 06 Month 13 Day

Last modified on

2026 Year 03 Month 27 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000066502