UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000062943
Receipt number R000072050
Scientific Title Parallel group comparative study of diapers for infants and toddlers
Date of disclosure of the study information 2026/10/01
Last modified on 2026/09/16 09:59:58

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Basic information

Public title

A study to evaluate the effect after using baby diaper

Acronym

A study to evaluate the effect after using baby diaper

Scientific Title

Parallel group comparative study of diapers for infants and toddlers

Scientific Title:Acronym

Parallel group comparative study of diapers for infants and toddlers

Region

Japan


Condition

Condition

Not applicable

Classification by specialty

Dermatology Child

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To evaluate the effects of improved Merries First Premium on children's skin using commercial diapers as a control

Basic objectives2

Safety

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase

Not applicable


Assessment

Primary outcomes

Variations in the total value obtained from the diaper rash scores at the start and end of the trial

Key secondary outcomes

Actual measured diaper rash scores for each area at the start and end of the trial Items in the post survey's "Q3 Feelings After Using Diapers"


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -but assessor(s) are blinded

Control

Placebo

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Prevention

Type of intervention

Other

Interventions/Control_1

Use the test diaper for 14 days.

Interventions/Control_2

Use the control diaper for 14 days.

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

3 months-old <=

Age-upper limit

47 months-old >=

Gender

Male and Female

Key inclusion criteria

Children 1) aged 3 months to 4 years at the time of consent acquisition,
2) using disposable diapers,
3) weighing 4-13kg at the start of the trial,
4) not attending nursery schools, certified children's centers, or daycare centers during the trial period,
5) whose diaper changes are mainly handled by the parents themselves. Parents
6) who can keep a diaper change diary for 14 days during the period (about 10 questions per exchange),
7) who can visit the facility with their child twice (the initial consultation and two weeks later),
8) who can respond to a pre-survey (1 time) of about 6 A4 pages and a post-survey (the same),
9) A parent who can agree that participation may be refused if any of the following conditions (1)-(4) are met at the start of the trial; (1) receiving outpatient treatment or medication at the start of the study, (2) having had an infectious disease (mumps, chickenpox, influenza, candidiatic dermatitis, etc.) from one month before until the start of the trial, (3) Used antibiotics and steroids from one month before the start of the study until the start of the trial, (4) with Diarrhea from one week before the start of the study until the start of the trial,
10) who can reliably meet deadlines for submitting survey and diary,
11) Children who do not participate in other monitoring activities or surveys from one week before the start of the trial until the end of the exam

Key exclusion criteria

Children 1)diagnosed with chronic or congenital diseases and visit the clinic regularly,
2) with severe skin diseases on the diaper covering and visiting the clinic,
3)currently using antibiotics or steroids and may use them during the trial period,
4)whose necks are not stable yet,
5)deemed unsuitable as trial participants by the research staff

Target sample size

64


Research contact person

Name of lead principal investigator

1st name Yuko
Middle name
Last name Fukuda

Organization

Kao Corporation

Division name

R&D -Development Research- Sanitary Products Research

Zip code

321-3497

Address

2606, Akabane, Ichikai-machi, haga-gun, Tochigi, 321-3497, JAPAN

TEL

+81-80-8759-1973

Email

fukuda.yuuko1@kao.com


Public contact

Name of contact person

1st name Yuuma
Middle name
Last name Yoshida

Organization

DRC Corporation

Division name

Clinical trial group Test department

Zip code

530-0044

Address

3F, The 9 Tabuchi Building, 2-10-31 Higashitenma, Kita-ku, Osaka-shi, Osaka Prefecture

TEL

+81-6-6882-1130

Homepage URL


Email

yoshida@drc-web.co.jp


Sponsor or person

Institute

DRC Corporation

Institute

Department

Personal name



Funding Source

Organization

Kao Corporation

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

+81-6-6882-1130

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

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 25 Day

Date of IRB

2026 Year 09 Month 10 Day

Anticipated trial start date

2026 Year 10 Month 08 Day

Last follow-up date

2026 Year 10 Month 23 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 16 Day

Last modified on

2026 Year 09 Month 16 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000072050