UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000063078
Receipt number R000072211
Scientific Title B-SKIN Trial
Date of disclosure of the study information 2026/10/01
Last modified on 2026/09/28 15:54:58

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Basic information

Public title

Effects of Balenine-Containing Whale Meat Extract Supplementation on Skin Conditioning in Healthy Female University Students

Acronym

B-SKIN Study

Scientific Title

B-SKIN Trial

Scientific Title:Acronym

Balenine Skin Study

Region

Japan


Condition

Condition

Healthy adult women

Classification by specialty

Not applicable Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The objective of this study is to investigate the effects of four-week oral supplementation with a balenine-containing whale meat extract on skin condition in healthy female university students. Changes in skin moisture, oil content, elasticity, skin age, skin care index, skin pigmentation, and subjective skin condition before and after the intervention will be compared among the balenine, whale oil, and placebo groups to evaluate the potential beneficial effects of balenine-containing whale meat extract on skin conditioning.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Change in skin moisture content from baseline (Week 0) to the end of the 4-week intervention (Week 4). Skin moisture content of the right cheek and the dorsum of the right hand will be measured three times using a peipai Skin Checker, and the mean value will be used for analysis.

Key secondary outcomes



Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Single blind -participants are blinded

Control

Placebo

Stratification

NO

Dynamic allocation

NO

Institution consideration


Blocking


Concealment



Intervention

No. of arms

3

Purpose of intervention

Treatment

Type of intervention

Food

Interventions/Control_1

Participants will orally consume soft capsules containing balenine-containing whale meat extract (100 mg of whale extract B8 plus 150 mg of safflower oil) three times daily after meals for four weeks.

Interventions/Control_2

Participants will orally consume soft capsules containing 300 mg of refined whale oil three times daily after meals for four weeks.

Interventions/Control_3

Participants will orally consume placebo soft capsules containing 300 mg of safflower oil, matched in appearance, weight, and color to the active study products, three times daily after meals 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

18 years-old <=

Age-upper limit

25 years-old >=

Gender

Female

Key inclusion criteria

1. Healthy female university students aged 18-25 years.
2. Individuals who provide written informed consent voluntarily.
3. Individuals who agree not to substantially change their usual dietary and skin-care habits during the study period.
4. Individuals who are able to attend all scheduled measurement sessions.

Key exclusion criteria

1. Individuals with an allergy to whale meat or seafood.
2. Individuals with skin diseases such as atopic dermatitis or psoriasis.
3. Individuals currently receiving treatment for scalp disease or alopecia.
4. Pregnant or breastfeeding women.
5. Individuals judged by a physician to be unsuitable for participation in the study.

Target sample size

30


Research contact person

Name of lead principal investigator

1st name Noriyuki
Middle name
Last name Yamamoto

Organization

Japanese Red Cross Hokkaido College of Nursing

Division name

Department of Health Sciences

Zip code

0900011

Address

664-1, Akebono-chou, Kitami, Hokkaido

TEL

0157663390

Email

yama@rchokkaido-cn.ac.jp


Public contact

Name of contact person

1st name Noriyuki
Middle name
Last name Yamamoto

Organization

Japanese Red Cross Hokkaido College of Nursing

Division name

Department of Health Sciences

Zip code

0900011

Address

664-1, Akebono-chou, Kitami, Hokkaido

TEL

0157663390

Homepage URL


Email

yama@rchokkaido-cn.ac.jp


Sponsor or person

Institute

Japanese Red Cross Hokkaido College of Nursing

Institute

Department

Personal name



Funding Source

Organization

Japanese Red Cross Hokkaido College of Nursing

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Research Ethics Committee of the Japanese Red Cross Hokkaido College of Nursing

Address

664-1, Akebono-chou, Kitami, Hokkaido

Tel

0157663311

Email

uemurak@rchokkaido-cn.ac.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

2026 Year 10 Month 01 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 08 Month 20 Day

Date of IRB

2026 Year 08 Month 20 Day

Anticipated trial start date

2026 Year 08 Month 20 Day

Last follow-up date

2028 Year 03 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

2026 Year 09 Month 28 Day

Last modified on

2026 Year 09 Month 28 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000072211