UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000047318
Receipt number R000052351
Scientific Title Event-related EEG alpha-band power changes during working memory and self-reflection tasks in healthy individuals and attention deficit hyperactivity disorder.
Date of disclosure of the study information 2022/03/31
Last modified on 2025/11/25 09:32:40

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Basic information

Public title

Event-related EEG alpha-band power changes during working memory and self-reflection tasks in healthy individuals and attention deficit hyperactivity disorder.

Acronym

EEG alpha-band power changes during WM/SR tasks in ADHD.

Scientific Title

Event-related EEG alpha-band power changes during working memory and self-reflection tasks in healthy individuals and attention deficit hyperactivity disorder.

Scientific Title:Acronym

EEG alpha-band power changes during WM/SR tasks in ADHD.

Region

Japan


Condition

Condition

Attention-Deficit/Hyperactivity Disorder

Classification by specialty

Psychiatry

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To verify whether alpha-band event-related power changes(ERpow) serve as a physiological marker for ADHD, alpha-band ERpow during working memory(WM)/self-reflection(SR) tasks are investigated. This study confirms whether alpha-band ERpow in SR condition significantly differs from those in WM condition in healthy subjects. Then, whether such discrepancy is not remarkable in ADHD patients is examined.

Basic objectives2

Others

Basic objectives -Others

Bio-usefulness of alpha-band event-related power changes(ERpow) in the diagnostic process for ADHD.

Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Alpha-band event-related power changes(ERpow)

Key secondary outcomes



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

Diagnosis

Type of intervention

Behavior,custom

Interventions/Control_1

Perform working memory task using English adjective words.
Perform self-reflection task using English adjective words.

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

18 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

Healthy subjects and ADHD patients who are over 18 years old, right-handed, and have an education of over 12 years.

Key exclusion criteria

Those who are under the influence of psychotropic drugs, those who have other psychiatric disorders, those who are FSIQ of 70 or less, those who have a history of heavy alcohol consumption, those who have an account of head injury or impaired consciousness, those who have thyroid dysfunction, those who have a vitamin deficiency, those who have an organic brain disease, those who have a severe physical illness, those who are judged unsuitable as a subject.

Target sample size

36


Research contact person

Name of lead principal investigator

1st name Takahiro
Middle name
Last name Matsuoka

Organization

Saitama Medical University

Division name

Saitama Medical University Hospital, Department of Psychiatry

Zip code

350-0495

Address

38 Morohongo, Moroyama-machi, Iruma-gun, Saitama, JAPAN

TEL

049-276-1111(ext.2163)

Email

tmatsu@saitama-med.ac.jp


Public contact

Name of contact person

1st name Takahiro
Middle name
Last name Matsuoka

Organization

Saitama Medical University

Division name

Saitama Medical University Hospital, Department of Psychiatry

Zip code

350-0495

Address

38 Morohongo, Moroyama-machi, Iruma-gun, Saitama, JAPAN

TEL

049-276-1111(ext.2163)

Homepage URL


Email

tmatsu@saitama-med.ac.jp


Sponsor or person

Institute

Saitama Medical University

Institute

Department

Personal name



Funding Source

Organization

Japan society for the promotion of science.

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

Saitama medical university hospital Institutional review board

Address

338 Morohongo, Moroyama-machi, Iruma-gun, Saitama, JAPAN

Tel

049-276-1354

Email

hirb@saitama-med.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

2022 Year 03 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

Enrolling by invitation

Date of protocol fixation

2021 Year 12 Month 11 Day

Date of IRB

2021 Year 12 Month 11 Day

Anticipated trial start date

2022 Year 03 Month 30 Day

Last follow-up date

2026 Year 03 Month 31 Day

Date of closure to data entry

2027 Year 03 Month 31 Day

Date trial data considered complete


Date analysis concluded

2027 Year 03 Month 31 Day


Other

Other related information



Management information

Registered date

2022 Year 03 Month 29 Day

Last modified on

2025 Year 11 Month 25 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000052351