UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000059491
Receipt number R000068036
Scientific Title Study on Gene Expression Characteristics in Skin Areas Suspected of Having Solar Lentigines or Melasma
Date of disclosure of the study information 2025/10/21
Last modified on 2025/10/21 17:01:25

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Basic information

Public title

Study on Gene Expression Characteristics in Skin Areas Suspected of Having Solar Lentigines or Melasma

Acronym

Gene Expression Analysis Study of Skin Areas Suspected of Solar Lentigines or Melasma

Scientific Title

Study on Gene Expression Characteristics in Skin Areas Suspected of Having Solar Lentigines or Melasma

Scientific Title:Acronym

Gene Expression Analysis Study of Skin Areas Suspected of Solar Lentigines or Melasma

Region

Japan


Condition

Condition

Solar Lentigines, Melasma

Classification by specialty

Dermatology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Establishment of a Novel Classification of Pigmentation Spots and Elucidation of Their Underlying Causes Based on Gene Expression Profiling in Skin Areas Suspected of Solar Lentigines or Melasma

Basic objectives2

Others

Basic objectives -Others

Correlation Analysis Between Questionnaire Data and Information Obtained During Clinical Examinations at Research Institutions (Including Skin Information, Facial Images, and Measured Numerical Data) and Comprehensive Gene Expression Analysis Results

Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Comprehensive Gene Expression Analysis of Pigmented and Normal Skin Areas

Key secondary outcomes

Correlation Analysis Between Questionnaire Data and Information Obtained During Clinical Examinations at Research Institutions (Including Skin Information, Facial Images, and Measured Numerical Data) and Comprehensive Gene Expression Analysis Results


Base

Study type

Observational


Study design

Basic design


Randomization


Randomization unit


Blinding


Control


Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms


Purpose of intervention


Type of intervention


Interventions/Control_1


Interventions/Control_2


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

18 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

Patients diagnosed with pigmentation spots (such as spots or melasma) at ALOOP CLINIC & LAB, operated by the General Incorporated Association Astronauts

Individuals who have received an explanation of this study, fully understood its contents, and voluntarily agreed to participate by providing informed consent

Healthy individuals aged 18 years or older

Individuals capable of completing, entering, or electronically signing consent forms and related documents

Key exclusion criteria

Individuals with a history of severe hepatic disorder, renal disorder, or myocardial infarction
Individuals with severe anemia
Individuals with a keloid predisposition (those whose scars tend to become raised and red, resembling a worm-like swelling, and heal poorly)
Individuals with diabetes mellitus
Individuals taking medications that affect skin sampling, such as antiplatelet agents (e.g., aspirin) or anticoagulants
Individuals with bleeding or hemostatic disorders
Individuals with a history of serious blood-borne infections, such as HIV, hepatitis B, hepatitis C, or syphilis
Individuals who have traveled within the past 14 days to areas where infectious diseases are prevalent (as designated by the Ministry of Foreign Affairs' Infectious Disease Risk Information)
Individuals with cold symptoms or a fever of 37.5C or higher
Any other individuals deemed inappropriate for participation by the principal investigator of the research institution

Target sample size

100


Research contact person

Name of lead principal investigator

1st name Kenshi
Middle name
Last name Yamasaki

Organization

General Incorporated Association Astronauts- ALOOP CLINIC & LAB

Division name

General Incorporated Association Astronauts- ALOOP CLINIC & LAB

Zip code

104-0061

Address

1-7-7 Ginza, Chuo-ku, Tokyo - POLA Ginza Building

TEL

0120-506-182

Email

k-yamasaki@aloop.clinic


Public contact

Name of contact person

1st name Taku
Middle name
Last name Nishijo

Organization

POLA Chemical Industries, Inc.

Division name

Frontier Research Center

Zip code

244-0812

Address

560 Kashio-cho, Totsuka-ku, Yokohama

TEL

045-826-7232

Homepage URL


Email

t-nishijo@pola.co.jp


Sponsor or person

Institute

POLA Chemical Industries, Inc.

Institute

Department

Personal name



Funding Source

Organization

POLA Chemical Industries, Inc.

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

Brain Care Clinic Ethics Review Committee.

Address

Hakutyo Build. 2F,2-1-2 Shinjuku,Shinjuku-ku,Tokyo

Tel

03-6273-2214

Email

ethics_board@drc-web.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 10 Month 21 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 10 Month 08 Day

Date of IRB

2025 Year 10 Month 09 Day

Anticipated trial start date

2025 Year 11 Month 01 Day

Last follow-up date

2026 Year 09 Month 30 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

Comprehensive Gene Expression Analysis of Pigmented and Normal Skin Areas


Management information

Registered date

2025 Year 10 Month 21 Day

Last modified on

2025 Year 10 Month 21 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000068036