UMIN-CTR Clinical Trial
| Unique ID issued by UMIN | UMIN000058365 |
|---|---|
| Receipt number | R000066722 |
| Scientific Title | Effects of Offline Gamma Transcranial Alternating Current Stimulation (tACS) over the Left Prefrontal and Posterior Parietal Cortices on Episodic Memory |
| Date of disclosure of the study information | 2025/07/05 |
| Last modified on | 2026/06/18 11:37:38 |
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Basic information
Public title
Testing new brain stimulation methods to consolidate memories
Acronym
Verification of brain stimulation for memory consolidation
Scientific Title
Effects of Offline Gamma Transcranial Alternating Current Stimulation (tACS) over the Left Prefrontal and Posterior Parietal Cortices on Episodic Memory
Scientific Title:Acronym
Effects of Offline Gamma Transcranial Alternating Current Stimulation (tACS) over the Left Prefrontal and Posterior Parietal Cortices on Episodic Memory
Region
| Japan |
Condition
Condition
healthy adult
Classification by specialty
| Rehabilitation medicine |
Classification by malignancy
Others
Genomic information
NO
Objectives
Narrative objectives1
To investigate the effect of gamma tACS on the left PFC and PPC on promoting the consolidation of episodic memory.
Basic objectives2
Efficacy
Basic objectives -Others
Trial characteristics_1
Trial characteristics_2
Developmental phase
Assessment
Primary outcomes
d-prime
Key secondary outcomes
hit ratio, false alarm ratio
Base
Study type
Interventional
Study design
Basic design
Parallel
Randomization
Randomized
Randomization unit
Individual
Blinding
Single blind -participants are blinded
Control
Placebo
Stratification
Dynamic allocation
Institution consideration
Blocking
Concealment
Intervention
No. of arms
3
Purpose of intervention
Treatment
Type of intervention
| Device,equipment |
Interventions/Control_1
Intervention time: 15 minutes
Quantity: 2.0 mA, 40 Hz
Number of times: 1 time
Site: left-PFC, left-PPC(dual-site)
Interventions/Control_2
Intervention time: 15 minutes
Quantity: 1.0 mA, 40 Hz
Number of times: 1 time
Site: left-PFC(single-site)
Interventions/Control_3
Intervention time: 15 minutes
Amount: Sham stimulation
Number of times: 1 time
Site: left-PFC, left-PPC(dual-site)
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
| 24 | years-old | >= |
Gender
Male and Female
Key inclusion criteria
Native speakers of Japanese, non-smokers, and right-handed individuals. Individuals with normal or corrected vision and no history of neurological trauma or mental disorders.
Key exclusion criteria
Individuals with a history of head trauma, metal implants in the head, chronic or acute skin diseases, epileptic seizures, or use of psychotropic drugs. Individuals with depressive tendencies.
Target sample size
51
Research contact person
Name of lead principal investigator
| 1st name | TOMONORI |
| Middle name | |
| Last name | NOMURA |
Organization
Niigata University of Health and Welfare
Division name
Department of Occupational Therapy, Faculty of Rehabilitation
Zip code
950-3198
Address
1398 Shimami-cho, Kita-ku, Niigata-City
TEL
0252574554
nomura@nuhw.ac.jp
Public contact
Name of contact person
| 1st name | TOMONORI |
| Middle name | |
| Last name | NOMURA |
Organization
Niigata University of Health and Welfare
Division name
Department of Occupational Therapy, Faculty of Rehabilitation
Zip code
950-3198
Address
1398 Shimami-cho, Kita-ku, Niigata-City
TEL
0252574554
Homepage URL
nomura@nuhw.ac.jp
Sponsor or person
Institute
Niigata University of Health and Welfare
Institute
Department
Personal name
Tomonori Nomura
Funding Source
Organization
Ministry of Education, Culture, Sports, Science and Technology
Organization
Division
Category of Funding Organization
Japanese Governmental office
Nationality of Funding Organization
Japan
Other related organizations
Co-sponsor
Name of secondary funder(s)
IRB Contact (For public release)
Organization
Niigata University of Health and Welfare
Address
1398 Shimami-cho, Kita-ku, Niigata-City
Tel
0252574554
nomura@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
Niigata
Institutions
Institutions
Other administrative information
Date of disclosure of the study information
| 2025 | Year | 07 | Month | 05 | 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
| 2025 | Year | 07 | Month | 05 | Day |
Date of IRB
Anticipated trial start date
| 2025 | Year | 07 | Month | 07 | Day |
Last follow-up date
| 2026 | 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
| 2025 | Year | 07 | Month | 03 | Day |
Last modified on
| 2026 | Year | 06 | Month | 18 | Day |
Link to view the page
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000066722
