UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000050008
Receipt number R000056901
Scientific Title Elucidating the pathophysiology of schizophrenia by measuring "prediction error" using magnetoencephalography.
Date of disclosure of the study information 2023/01/11
Last modified on 2023/03/16 18:13:12

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Basic information

Public title

Elucidating the pathophysiology of schizophrenia by measuring "prediction error" using magnetoencephalography.

Acronym

Elucidating the pathophysiology of schizophrenia by measuring "prediction error" using magnetoencephalography.

Scientific Title

Elucidating the pathophysiology of schizophrenia by measuring "prediction error" using magnetoencephalography.

Scientific Title:Acronym

Elucidating the pathophysiology of schizophrenia by measuring "prediction error" using magnetoencephalography.

Region

Japan


Condition

Condition

schizophrenia and healthy control

Classification by specialty

Psychiatry Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To examine the function of face recognition in schizophrenia from the perspective of brain predictability using magnetoencephalography.

Basic objectives2

Others

Basic objectives -Others

Exploratory research

Trial characteristics_1

Exploratory

Trial characteristics_2

Explanatory

Developmental phase

Not applicable


Assessment

Primary outcomes

Power values for each brain region and connectivity between regions during masked face recognition task

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

Uncontrolled

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

1

Purpose of intervention

Diagnosis

Type of intervention

Device,equipment

Interventions/Control_1

Head MRI, magnetoencephalography on task



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 group
(1) Adult males and females

Patient group
(1) Adult males and females
(2) Patients with schizophrenia
(3) Diagnosis will be conducted based on DSM-5

Key exclusion criteria

Healthy subjects group
(1) Subjects with a history of psychiatric or neurological disorders
(2) Subjects with contraindications to MRI and magnetoencephalography (e.g., implanted cardiac pacemaker, fear of claustrophobia, etc.)
(3) Subjects with serious physical illnesses.

Patient group
(1) Subjects who are hospitalized
(2) Subjects with contraindications to MRI and magnetoencephalography (e.g., implanted cardiac pacemaker, fear of claustrophobia, etc.)
(3) Subjects with serious physical illness
(4) When the researcher judges that the subject is unsuitable for the study due to unstable symptoms, etc.

Target sample size

100


Research contact person

Name of lead principal investigator

1st name Masato
Middle name
Last name Fukuda

Organization

Gunma University Graduate School of Medicine

Division name

Department of Psychiatry and Neuroscience

Zip code

371-8511

Address

3-39-22 Showa-machi, Maebashi City, Gunma

TEL

027-220-8190

Email

tyuichi@gunma-u.ac.jp


Public contact

Name of contact person

1st name Yuichi
Middle name
Last name Takei

Organization

Gunma University Graduate School of Medicine

Division name

Department of Psychiatry and Neuroscience

Zip code

371-8511

Address

3-39-22 Showa-machi, Maebashi City, Gunma

TEL

027-220-8190

Homepage URL


Email

tyuichi@gunma-u.ac.jp


Sponsor or person

Institute

Gunma University

Institute

Department

Personal name



Funding Source

Organization

No research funding source

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

Gunma University Hospital Clinical Research Review Board

Address

3-39-15 Showa-machi, Maebashi City, Gunma

Tel

027-220-8740

Email

hitotaisho-ciru@ml.gunma-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

群馬大学医学部附属病院(群馬県)、群馬県立精神医療センター(群馬県)、つつじメンタルクリニック(群馬県)、城西クリニック(群馬県)、熊谷総合病院(埼玉県)


Other administrative information

Date of disclosure of the study information

2023 Year 01 Month 11 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

Open public recruiting

Date of protocol fixation

2022 Year 12 Month 23 Day

Date of IRB

2023 Year 03 Month 14 Day

Anticipated trial start date

2023 Year 03 Month 14 Day

Last follow-up date

2026 Year 03 Month 31 Day

Date of closure to data entry

2026 Year 03 Month 31 Day

Date trial data considered complete


Date analysis concluded



Other

Other related information

This is a cross-sectional analytical observational study. The subjects will be schizophrenic patients and healthy subjects attending Gunma University Hospital, Kumagaya General Hospital, Tsutsuji Mental Hospital, and Gunma Prefectural Psychiatric Center as outpatients. Posters inviting healthy subjects to participate in the study will be prepared and displayed at Gunma University and at the collaborating institutions to recruit them. The participants will be asked to perform a computerized masked face recognition task while magnetoencephalography (MEG) measurements are performed. The task is to generate event-related potentials due to prediction error by presenting an image of a masked face followed by an image of an unmasked face, and it takes about 15 minutes. The task is created using the stimulus presentation software PsychoPy. Psychological testing will be conducted to assess psychiatric symptoms. The acquired data will be statistically compared between normal subjects and schizophrenic subjects, and correlated with the rating scale of psychiatric symptoms.
Adult patients with schizophrenia and healthy subjects (adults with no current or past psychiatric or neurological disorders) who are outpatients at the above facility between March 14, 2023 and March 31, 2026 will be included in the study. The target number of cases will be 100 schizophrenic patients and 100 healthy subjects. Minors, patients with contraindications to MRI and magnetoencephalography such as implanted cardiac pacemakers or claustrophobia, patients with serious physical illnesses (similar to the patients who are eligible for the additional fee for management of psychiatric complications), hospitalized patients, and patients whose psychiatric symptoms are unstable or whose physicians deem them unsuitable for the study will be excluded from the The research subjects will be excluded from the study.


Management information

Registered date

2023 Year 01 Month 11 Day

Last modified on

2023 Year 03 Month 16 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000056901


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name