UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000060337
Receipt number R000069021
Scientific Title Comparative study on the efficacy of skincare ingredients by skin type
Date of disclosure of the study information 2026/01/13
Last modified on 2026/01/13 15:27:55

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Basic information

Public title

Efficacy study of the skincare product

Acronym

Efficacy study of the skincare product

Scientific Title

Comparative study on the efficacy of skincare ingredients by skin type

Scientific Title:Acronym

Comparative study on the efficacy of skincare ingredients by skin type

Region

Japan


Condition

Condition

Not applicable

Classification by specialty

Not applicable Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Comparing the efficacy of skincare products between SSL-RNA clusters.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase

Not applicable


Assessment

Primary outcomes

Change in skin surface roughness before and after 4 week use of skincare products

Key secondary outcomes

Skin color
Stratum corneum moisture content
TEWL value
Skin surface roughness
Wrinkle score
Melanin index
Hemoglobin index, etc.


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Single blind -participants are blinded

Control

Active

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

3

Purpose of intervention

Treatment

Type of intervention

Other

Interventions/Control_1

The test product (1) (a commercially available skincare cosmetic) will be applied to the entire face twice daily for four weeks.

Interventions/Control_2

The test product (2) (a commercially available skincare cosmetic) will be applied to the entire face twice daily for four weeks.

Interventions/Control_3

The test product (3) (a commercially available skincare cosmetic) will be applied to the entire face twice daily for four weeks.

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

59 years-old >=

Gender

Female

Key inclusion criteria

1.Female participants aged 35 to 59 years.
2.Individuals who have previously experienced discomfort or adverse skin reactions to skincare cosmetics (*) and consequently discontinued their use.
*Examples include skin redness, stinging or tingling sensations, or acne formation.
3.Individuals who are concerned about wrinkles around the outer corners of the
eyes (crow's feet).
4. Individuals who are not currently using any facial serum (beauty essence).

Key exclusion criteria

1.Individuals who have skin conditions such as atopic dermatitis or other dermatological symptoms on the test area (face).
2.Individuals who are pregnant or may be pregnant at the time of obtaining nformed
consent.
3.Individuals who are breastfeeding or plan to breastfeed during the study period.
4.Individuals who are currently visiting a medical institution due to poor hysical
condition or skin disease at the time of recruitment.
5.Individuals who have severe allergies (e.g., hay fever or rhinitis) that may affect the study results.
6.Individuals who regularly take prescription or over-the-counter medications including antibiotics, anti-inflammatory drugs, anti-allergy drugs, sleeping pills, analgesics, hormonal agents, laxatives, or intestinal regulators). Occasional use, about once or twice a month, is acceptable.
7.Individuals who have received cosmetic medical treatments such as peeling or
laser therapy on the face or body within the past six months.
8.Individuals who themselves, or whose family members living in the same
household, are employed in advertising agencies, market research or consulting
firms, mass media, distribution, or in the manufacture of pharmaceuticals,
cosmetics, toiletries, or hygiene products.
9.Individuals who are currently participating, or plan to participate during
this study, in another interventional study (e.g., involving cosmetics or foods)
targeting the facial skin.
10.Individuals who are deemed unsuitable for study participation by the principal investigator for any other reason.

Target sample size

120


Research contact person

Name of lead principal investigator

1st name Shou
Middle name
Last name Kikuchi

Organization

Kao Corporation

Division name

Skin Beauty Products Research Lab.

Zip code

131-8501

Address

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

TEL

+81-70-3296-8432

Email

kikuchi.shou@kao.com


Public contact

Name of contact person

1st name Hiroki
Middle name
Last name Yanagisawa

Organization

Kao Corporation

Division name

Skin Beauty Products Research Lab.

Zip code

131-8501

Address

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

TEL

+81-70-3300-8734

Homepage URL


Email

yanaagisawa.hiroki@kao.com


Sponsor or person

Institute

DRC Co., Ltd.

Institute

Department

Personal name



Funding Source

Organization

Kao Corporation

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor


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 01 Month 13 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

120

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

No longer recruiting

Date of protocol fixation

2025 Year 09 Month 17 Day

Date of IRB

2025 Year 09 Month 17 Day

Anticipated trial start date

2025 Year 10 Month 28 Day

Last follow-up date

2025 Year 11 Month 18 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 01 Month 13 Day

Last modified on

2026 Year 01 Month 13 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000069021