UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000023682
Receipt number R000025754
Scientific Title Elucidation of human brain network and functional plasticity in patients with epilepsy: a cortico-cortical evoked potential study using an intracranial electrode
Date of disclosure of the study information 2016/08/19
Last modified on 2024/03/09 20:40:27

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Basic information

Public title

Elucidation of human brain network and functional plasticity in patients with epilepsy: a cortico-cortical evoked potential study using an intracranial electrode

Acronym

Elucidation of human brain network and functional plasticity in patients with epilepsy

Scientific Title

Elucidation of human brain network and functional plasticity in patients with epilepsy: a cortico-cortical evoked potential study using an intracranial electrode

Scientific Title:Acronym

Elucidation of human brain network and functional plasticity in patients with epilepsy

Region

Japan North America Europe


Condition

Condition

Epilepsy, Brain tumor, Cerebral vascular malformation

Classification by specialty

Neurology Neurosurgery

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The aim of this study is to elucidate the human brain network and functional plasticity in patients with epilepsy by means of cortico-cortical evoked potentials (CCEPs) using intracranial electrodes.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Cortico-cortical evoked potentials (CCEPs), subcortico-cortical evoked potentials (SCEPs), and stimulus-induced wide-band brain activities recorded from intracranial electrodes elicited by single pulse electrical stimuli to the cerebral cortex and white matter.

Key secondary outcomes

Activities recorded from microelectrodes in case of simultaneous intracranial macroelectrodes and microelectrode recording.


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

Prevention

Type of intervention

Device,equipment

Interventions/Control_1

Single-pulse or paired-pulse electrical stimuli will be applied bipolarly to a pair of adjacent intracranial electrodes at the stimulus intensity within safe limits. We aim to elucidate the static and dynamic features of pathological and physiological brain networks.

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

6 years-old <=

Age-upper limit

89 years-old >=

Gender

Male and Female

Key inclusion criteria

We will recruit the patients with medically intractable partial epilepsy and those with neurosurgical diseases.

Key exclusion criteria

A patient whose consent can not be obtained.

Target sample size

100


Research contact person

Name of lead principal investigator

1st name Akio
Middle name
Last name Ikeda

Organization

Kyoto University Graduate School of Medicine

Division name

Department of Epilepsy, Movement Disorders and Physiology

Zip code

606-8507

Address

54, Shogoin-kawaharacho, Sakyo-ku, Kyoto, 606-8507, JAPAN

TEL

075-751-3662

Email

akin@kuhp.kyoto-u.ac.jp


Public contact

Name of contact person

1st name Katsuya
Middle name
Last name Kobayashi

Organization

Kyoto University Graduate School of Medicine

Division name

Department of Neurology

Zip code

606-8507

Address

54, Shogoin-kawaharacho, Sakyo-ku, Kyoto, 606-8507, JAPAN

TEL

075-751-3772

Homepage URL


Email

31258a@kuhp.kyoto-u.ac.jp


Sponsor or person

Institute

Kyoto University

Institute

Department

Personal name



Funding Source

Organization

KAKENHI(Grants-in-Aid for Scientific Research), The Ministry of Education,Culture,Sports,Science and Technology (MEXT)

Organization

Division

Category of Funding Organization

Japanese Governmental office

Nationality of Funding Organization



Other related organizations

Co-sponsor

Kyoto University
Ehime University
Ritsumeikan University
RIKEN
Hokkaido University
Kyoto Sangyo University
Kyushu Institute of Technology
Fukuoka Institute of Technology
INS Institut de Neurosciences des Systemes, UMR INSERM 1106, Aix Marseille Universite
Department of Neurology, Johns Hopkins University School of Medicine
Natbrainlab, Department of Forensic and Neurodevelopmental Sciences, Institute of Psychiatry, King's College London
Epilepsy Center, Cleveland Clinic

Name of secondary funder(s)



IRB Contact (For public release)

Organization

Kyoto University Graduate School and Faculty of Medicine, Ethics Committee

Address

Yoshida-Konoe-cho, Sakyo-ku, Kyoto 606-8501, JAPAN

Tel

075-753-4680

Email

ethcom@kuhp.kyoto-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

2016 Year 08 Month 19 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

There have been no adverse events.

Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Enrolling by invitation

Date of protocol fixation

2016 Year 08 Month 19 Day

Date of IRB

2016 Year 12 Month 13 Day

Anticipated trial start date

2016 Year 09 Month 01 Day

Last follow-up date

2026 Year 12 Month 12 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

We have not yet reached the target number of patients and are still recruiting. Because the number of patients was less than initially expected due to the COVID-19 pandemic, the research period was extended for 4 years with the approval of the ethics committee of our institute (expected end date of the study: December 12, 2026).


Management information

Registered date

2016 Year 08 Month 19 Day

Last modified on

2024 Year 03 Month 09 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000025754


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name