UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000061340
Receipt number R000068576
Scientific Title Effects of Wearing Leg Warmers with Acupoint-Targeted Thermogenic Fiber Pile Knit Fabric in Pregnant Women with Hiesho(cold disorder): A Randomized Controlled Trial for Minor Discomforts During the Perinatal Period
Date of disclosure of the study information 2026/04/21
Last modified on 2026/04/21 17:28:34

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Basic information

Public title

A Study on the Effects of Functional Leg Warmers on Hiesho(cold disorder) in Pregnant Women

Acronym

Leg Warmer Study for Hiesho(cold disorder) in Pregnant Women

Scientific Title

Effects of Wearing Leg Warmers with Acupoint-Targeted Thermogenic Fiber Pile Knit Fabric in Pregnant Women with Hiesho(cold disorder): A Randomized Controlled Trial for Minor Discomforts During the Perinatal Period

Scientific Title:Acronym

Perinatal Minor Complaints Thermal Leg Warmers Randomized Controlled Trial

Region

Japan


Condition

Condition

Hiesho(cold disorder)

Classification by specialty

Obstetrics and Gynecology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

This randomized controlled trial will evaluate whether wearing acupoint-targeted thermogenic fiber pile-knit leg warmers, compared with lifestyle guidance alone, alleviates minor complaints during pregnancy and postpartum and reduces the risk of postpartum depression in pregnant women with hiesho(cold disorder).

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase

Not applicable


Assessment

Primary outcomes

The prevalence of minor complaints will be assessed using the 29 minor-trouble symptoms identified by Shinkawa (2020). Measurement time points are as follows: 1) at receipt of the leg warmers; 2) at approximately 32 weeks gestation (1 month after initiation of wear); 3) postpartum: the day before hospital discharge and at the 2-week postnatal check-up.

Key secondary outcomes



Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -no one is blinded

Control

No treatment

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Other

Interventions/Control_1

Wearing acupoint-targeted thermogenic fiber pile-knit leg warmers

Interventions/Control_2

Usual care (usual lifestyle)

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

39 years-old >=

Gender

Female

Key inclusion criteria

Pregnant women with uncomplicated singleton pregnancies at >=20 weeks of gestation (when body temperature is relatively stable) and a score of >=4 on the Kusumi-Emori Cold Sensitivity Assessment Scale.

Key exclusion criteria

Pregnant women with comorbidities that may affect pregnancy or body temperature (endocrine disorders, autonomic nervous system disorders, hypertension, cardiac disease, renal disease, or psychiatric disorders).

Target sample size

80


Research contact person

Name of lead principal investigator

1st name Shunji
Middle name
Last name Sakaguchi

Organization

Kansai University of Health Sciences

Division name

Graduate School

Zip code

5900482

Address

2-11-1 Wakaba, Kumatori, Sennan, Osaka, Japan

TEL

0724538409

Email

sakaguti@kansai.ac.jp


Public contact

Name of contact person

1st name Nao
Middle name
Last name Okamoto

Organization

Kansai University of Health Sciences

Division name

Graduate School

Zip code

5900482

Address

2-11-1 Wakaba, Kumatori, Sennan, Osaka, Japan

TEL

0724538251

Homepage URL


Email

okamoto@kansai.ac.jp


Sponsor or person

Institute

Kansai University of Health Sciences

Institute

Department

Personal name



Funding Source

Organization

Kansai University of Health Sciences

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

Kansai University of Health Sciences

Address

2-11-1 Wakaba, Kumatori-cho, Sennan-gun, Osaka, Japan

Tel

0724538251

Email

sakaguti@kansai.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

脇本産婦人科(大阪府)、ENAレディースクリニック(大阪府)


Other administrative information

Date of disclosure of the study information

2026 Year 04 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

Enrolling by invitation

Date of protocol fixation

2025 Year 10 Month 21 Day

Date of IRB

2025 Year 11 Month 15 Day

Anticipated trial start date

2025 Year 12 Month 25 Day

Last follow-up date

2026 Year 06 Month 01 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 04 Month 21 Day

Last modified on

2026 Year 04 Month 21 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000068576