UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000062850
Receipt number R000071950
Scientific Title Study on Thermophysiological Responses to Radiofrequency Electromagnetic Fields toward Beyond 5G
Date of disclosure of the study information 2026/09/08
Last modified on 2026/09/08 19:36:11

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Basic information

Public title

Study on Thermophysiological Responses to Radiofrequency Electromagnetic Fields toward Beyond 5G

Acronym

Beyond 5G Thermophysiology Study

Scientific Title

Study on Thermophysiological Responses to Radiofrequency Electromagnetic Fields toward Beyond 5G

Scientific Title:Acronym

Beyond 5G Thermophysiology Study

Region

Japan


Condition

Condition

Healthy volunteers

Classification by specialty

Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The purpose of this study is to investigate the effects of radiofrequency electromagnetic field exposure on the human body by locally exposing human skin to radiofrequency electromagnetic fields in frequency bands expected to be used for Beyond 5G and evaluating physiological responses, including skin temperature, blood flow, and thermal sensation, thereby providing scientific evidence for the development of safe communication technologies and safety standards.

Basic objectives2

Safety

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Changes in body temperature, skin temperature, skin blood flow, and thermal sensation associated with radiofrequency electromagnetic field exposure.

Key secondary outcomes



Base

Study type

Interventional


Study design

Basic design

Cross-over

Randomization

Non-randomized

Randomization unit


Blinding

Single blind -participants are blinded

Control

Placebo

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

3

Purpose of intervention

Prevention

Type of intervention

Other

Interventions/Control_1

Sham exposure

Interventions/Control_2

Exposure at A

Interventions/Control_3

Exposure at B

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

79 years-old >=

Gender

Male and Female

Key inclusion criteria

1. Individuals aged 18 to 79 years at the time of informed consent who are not currently enrolled in high school.
2. Individuals who provide written informed consent to participate in the study.
3. Individuals without severe diseases that interfere with daily activities. Individuals with common chronic diseases, such as hypertension, may be included if the condition is appropriately controlled under medical supervision and participation in the study is considered acceptable.
4. Individuals judged by the principal investigator to be eligible to participate based on an interview and assessment of lifestyle-related information.

Key exclusion criteria

1. Individuals who do not meet the above inclusion criteria.
2. Individuals found to have provided false information at the time of informed consent or during participation in the study.

Target sample size

24


Research contact person

Name of lead principal investigator

1st name HIROSHI
Middle name
Last name MASUDA

Organization

Kurume University School of Medicine

Division name

Dept. of Environmental Medicine

Zip code

8300011

Address

67 Asahimach, Kurume, Fukuoka, Japan

TEL

0942-31-7552

Email

bdxmsdb@kurume-u.ac.jp


Public contact

Name of contact person

1st name HIROSHI
Middle name
Last name MASUDA

Organization

Kurume University School of Medicine

Division name

Dept. of Environmental Medicine

Zip code

8300011

Address

67 Asahimachi, Kurume, Fukuoka, Japan

TEL

0942-31-7552

Homepage URL


Email

bdxmsdb@kurume-u.ac.jp


Sponsor or person

Institute

Kurume University School of Medicine

Institute

Department

Personal name



Funding Source

Organization

Ministry of Internal Affairs and Communications (MIC)

Organization

Division

Category of Funding Organization

Japanese Governmental office

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Ethics Committee of Kurume University

Address

67 Asahimachi, Kurume, Fukuoka, Japan

Tel

0942653749

Email

i_rinri@kurume-u.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 09 Month 08 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 09 Month 07 Day

Date of IRB


Anticipated trial start date

2026 Year 09 Month 14 Day

Last follow-up date

2029 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 08 Day

Last modified on

2026 Year 09 Month 08 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000071950