UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000056458
Receipt number R000064477
Scientific Title Influence of sex differences considering menstrual cycle on late brain activity(after 100ms post-stimulation)
Date of disclosure of the study information 2024/12/31
Last modified on 2025/04/23 11:21:44

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Basic information

Public title

Influence of sex differences considering menstrual cycle on late brain activity(after 100ms post-stimulation)

Acronym

Influence of sex differences considering menstrual cycle on late brain activity(after 100ms post-stimulation)

Scientific Title

Influence of sex differences considering menstrual cycle on late brain activity(after 100ms post-stimulation)

Scientific Title:Acronym

Influence of sex differences considering menstrual cycle on late brain activity(after 100ms post-stimulation)

Region

Japan


Condition

Condition

healthy adults

Classification by specialty

Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

In recent years, it has been pointed out that it is important to consider the menstrual cycle (sex hormones) when examining neurophysiological sex differences. It has been reported that estrogen (especially estradiol: E2) and progesterone (P4) play a major role in the female menstrual cycle and influence human brain function. However, very few studies have examined neurophysiological sex differences in terms of the menstrual cycle. Therefore, the purpose of this study is to investigate the effects of sex differences in menstrual cycle (especially menstrual and ovulatory phases) on late brain activity (after 100 ms after stimulus presentation) in humans, and to clarify sex differences in higher-level brain function. We will also provide evidence that it is important to consider menstrual cycle (sex hormones) and sex differences when examining neurophysiological sex differences.

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

In order to investigate the effect of sex difference on late brain activity (after 100 ms of stimulus presentation), we record somatosensory evoked potentials (SEPs) and auditory evoked potentials (AEPs) during simple response and resting conditions using electroencephalogram (EEG) and evaluate the sex difference. In this process, women are measured in two periods: the menstrual period and the ovulatory period. The menstrual period is defined as the period from the second to the fourth day after the onset of menstruation, and the ovulatory period is defined as the period from the second to the fourth day after a positive urine ovulation test. This allows for detailed clarification of sex differences in higher-order brain function. It also provides evidence that it is important to consider the menstrual cycle (sex hormones) and sex differences when examining neurophysiological sex differences.

Key secondary outcomes

Somatosensory evoked potentials (SEPs) and auditory evoked potentials (AEPs) during simple response and resting conditions will be recorded using electroencephalography (EEG) to evaluate differences in women's menstrual cycle periods. In this process, women will be measured in two periods: the menstrual cycle and the ovulatory cycle. The menstrual cycle is defined as the period from the second to the fourth day after the onset of menstruation, and the ovulatory cycle is defined as the period from the second to the fourth day after a positive urine ovulation test. This allows for detailed clarification of sex differences in higher-order brain function. It also provides evidence that it is important to consider the menstrual cycle (sex hormones) and sex differences when examining neurophysiological sex differences.


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -no one is blinded

Control

Placebo

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

3

Purpose of intervention

Educational,Counseling,Training

Type of intervention

Other

Interventions/Control_1

Electrical Stimulation
Auditory Stimulation
EEG

Interventions/Control_2

Electrical Stimulation
Auditory Stimulation
EEG

Interventions/Control_3

Electrical Stimulation
Auditory Stimulation
EEG

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

Male and Female

Key inclusion criteria

Right-handed normal adult men and women
Females are normal menstruating adults (menstrual cycle of 28 to 35 days)
Adults with no history of psychiatric or neurological disorders

Key exclusion criteria

Adults with no history of psychiatric or neurological disorders
Women with irregular menstruation

Target sample size

50


Research contact person

Name of lead principal investigator

1st name Sayaka
Middle name
Last name Anazawa

Organization

Niigata University of Health and Welfare

Division name

Graduate School of Health and Welfare Studies

Zip code

950-3198

Address

1398 shimami-cho, kita-ku, Niigata city

TEL

070-2029-1720

Email

hwd24012@nuhw.ac.jp


Public contact

Name of contact person

1st name Sayaka
Middle name
Last name Anazawa

Organization

Niigata University of Health and Welfare

Division name

Graduate School of Health and Welfare Studies

Zip code

950-3198

Address

1398 shimami-cho, kita-ku, Niigata city

TEL

070-2029-1720

Homepage URL


Email

hwd24012@nuhw.ac.jp


Sponsor or person

Institute

Niigata University of Health and Welfare

Institute

Department

Personal name



Funding Source

Organization

Niigata University of Health and Welfare

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

Niigata University of Health and Welfare

Address

Niigata 950-3198, Japan

Tel

025-257-4500

Email

hwd24012@nuhw.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

2024 Year 12 Month 31 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

2024 Year 12 Month 14 Day

Date of IRB


Anticipated trial start date

2024 Year 12 Month 15 Day

Last follow-up date

2026 Year 12 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

2024 Year 12 Month 13 Day

Last modified on

2025 Year 04 Month 23 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000064477