UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000059580
Receipt number R000067734
Scientific Title Examination of the Effects of Temperature in Disposable Heating Pads on Alleviating Menstrual
Date of disclosure of the study information 2025/10/29
Last modified on 2025/10/29 16:30:21

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Basic information

Public title

Examination of the Effects of Temperature in Disposable Heating Pads on Alleviating Menstrual

Acronym

Examination of the Effects of Temperature in Disposable Heating Pads on Alleviating Menstrual

Scientific Title

Examination of the Effects of Temperature in Disposable Heating Pads on Alleviating Menstrual

Scientific Title:Acronym

Examination of the Effects of Temperature in Disposable Heating Pads on Alleviating Menstrual

Region

Japan


Condition

Condition

Healthy volunteer

Classification by specialty

Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To investigate the effectiveness of three types of disposable heating pads with different temperatures for menstrual pain.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Visual Analog Scale (VAS)

Key secondary outcomes

McGill Pain Questionnaire(MPQ)
Menstrual Distress Questionnaire(MDQ)
Subjective evaluation (original questionnaire: eight items including sense of warmth, satisfaction, and free comments)


Base

Study type

Interventional


Study design

Basic design

Single arm

Randomization

Non-randomized

Randomization unit


Blinding

Open -no one is blinded

Control

Self control

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

1

Purpose of intervention

Treatment

Type of intervention

Other

Interventions/Control_1

Participants are instructed to apply one disposable heating pad per day to their lower abdomen, over their undergarments, on days they experienced severe menstrual pain.

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

20 years-old <=

Age-upper limit

49 years-old >=

Gender

Female

Key inclusion criteria

Individuals who self-reported severe menstrual pain for at least one day per menstrual period, with a menstrual cycle length of 24-39 days over the past three months.

Key exclusion criteria

1. Individuals with irregular menstruation.
2. Individuals with dysmenorrhea severe enough to require treatment at a medical institution.

Target sample size

30


Research contact person

Name of lead principal investigator

1st name Shinsuke
Middle name
Last name Inomata

Organization

KOBAYASHI Pharmaceutical Co., Ltd.

Division name

Personal & House Care Product Department R&D Headquarters

Zip code

567-0057

Address

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

TEL

072-640-0179

Email

s.inomata@kobayashi.co.jp


Public contact

Name of contact person

1st name Aoi
Middle name
Last name Nohara

Organization

KOBAYASHI Pharmaceutical Co., Ltd.

Division name

Personal & House Care Product Department R&D Headquarters

Zip code

567-0057

Address

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

TEL

072-640-0179

Homepage URL


Email

a.nohara@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


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Nayoro City University Review Committee

Address

1-8, Nishi 4-jo Kita 8-chome, Nayoro, Hokkaido, Japan

Tel

01654-2-4194

Email

minamiyama@nayoro.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

2025 Year 10 Month 29 Day


Related information

URL releasing protocol

not published

Publication of results

Published


Result

URL related to results and publications

not published

Number of participants that the trial has enrolled

42

Results

A total of 42 participants enrolled in the study; however, the 30 participants who completed the trial with all three types of disposable heating pads were included in the final analysis.
All three disposable heating pads showed a significant reduction in VAS and total MPQ scores.

Results date posted

2025 Year 10 Month 15 Day

Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics

Individuals who self-reported severe menstrual pain for at least one day per menstrual period, with a menstrual cycle length of 24-39 days over the past three months.

Participant flow

The purpose, procedures, and ethical considerations of the study were explained both orally and in writing.
Participants who provided informed consent were given an envelope containing the instruction sheet, questionnaires, and other related materials.

Adverse events

None

Outcome measures

Visual Analog Scale (VAS)
McGill Pain Questionnaire(MPQ)
Menstrual Distress Questionnaire(MDQ)
Subjective evaluation (original questionnaire: eight items including sense of warmth, satisfaction, and free comments)

Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Completed

Date of protocol fixation

2019 Year 10 Month 28 Day

Date of IRB

2019 Year 10 Month 28 Day

Anticipated trial start date

2019 Year 12 Month 16 Day

Last follow-up date

2020 Year 05 Month 29 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 10 Month 29 Day

Last modified on

2025 Year 10 Month 29 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000067734