UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000057524
Receipt number R000065706
Scientific Title Effects of different settings and stimulation modalities of transcutaneous auricular vagus nerve stimulation to the left cymba concha on somatosensory function of the finger
Date of disclosure of the study information 2025/04/07
Last modified on 2025/04/04 20:33:28

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Basic information

Public title

Effects of different settings and stimulation modalities of transcutaneous auricular vagus nerve stimulation to the left cymba concha on somatosensory function of the finger

Acronym

Effects of different settings and stimulation modalities of transcutaneous auricular vagus nerve stimulation to the left cymba concha on somatosensory function of the finger

Scientific Title

Effects of different settings and stimulation modalities of transcutaneous auricular vagus nerve stimulation to the left cymba concha on somatosensory function of the finger

Scientific Title:Acronym

Effects of different settings and stimulation modalities of transcutaneous auricular vagus nerve stimulation to the left cymba concha on somatosensory function of the finger

Region

Japan


Condition

Condition

healthy adults

Classification by specialty

Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Identifying combinations of taVNS stimulus settings and stimulus modalities that improve finger somatosensory function.

Basic objectives2

Bio-equivalence

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Two-point discrimination threshold
Autonomic nerve activity

Key secondary outcomes



Base

Study type

Interventional


Study design

Basic design

Cross-over

Randomization

Randomized

Randomization unit

Individual

Blinding

Single blind -participants are blinded

Control

Placebo

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

8

Purpose of intervention

Treatment

Type of intervention

Device,equipment

Interventions/Control_1

Experiment 1
taVNS stimulation period (stimulation time): 15 min
Stimulation condition: 300 microsecond - below pain threshold
The stimulation site: The left cymba conchae

Interventions/Control_2

Experiment 1
taVNS stimulation period (stimulation time): 15 min
Stimulation condition: 500 microsecond - below pain threshold
The stimulation site: The left cymba conchae

Interventions/Control_3

Experiment 1
taVNS stimulation period (stimulation time): 15 min
Stimulation condition: 300 microsecond - midpoint between pain threshold and sensory threshold
The stimulation site: The left cymba conchae

Interventions/Control_4

Experiment 1
taVNS stimulation period (stimulation time): 15 min
Stimulation condition: 500 microsecond - midpoint between pain threshold and sensory threshold
The stimulation site: The left cymba conchae

Interventions/Control_5

Experiment 1
taVNS stimulation period (stimulation time): 15 min
Stimulation condition: Below 500 microsecond-pain threshold with the highest total charge
The stimulation site: The left earlobe

Interventions/Control_6

Experiment 2
taVNS stimulation period (stimulation time): 30 min
Stimulation style: intermittent stimulation
Stimulation condition: the most effective stimulation condition in Experiment 1
The stimulation site: The left cymba conchae

Interventions/Control_7

Experiment 2
taVNS stimulation period (stimulation time): 15 min
Stimulation style: continuous stimulation
Stimulation condition: the most effective stimulation condition in Experiment 1
The stimulation site: The left cymba conchae

Interventions/Control_8

Experiment 2
taVNS stimulation period (stimulation time): 15 min or 30 min
Stimulation mode: intermittent stimulation (30 min) or continuous stimulation (15 min)
Stimulation condition: the most effective stimulation condition in Experiment 1
The stimulation site: The left earlobe

Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

18 years-old <=

Age-upper limit

27 years-old >=

Gender

Male and Female

Key inclusion criteria

We are looking for individuals who are interested in this research and are willing to participate voluntarily. We also invite students and graduate students enrolled in Niigata University of Health and Welfare to join us by e-mail.

Key exclusion criteria

Those with neurological or psychiatric diseases, those taking medication, and those with a history of external ear injury.

Target sample size

60


Research contact person

Name of lead principal investigator

1st name Kako
Middle name
Last name Tanabe

Organization

Graduate School, Niigata University of Health and Welfare

Division name

Institute for Human Movement and Medical Sciences

Zip code

950-3198

Address

1398 Shimami-cho, Kita-ku, Niigata-city, Niigata, Japan

TEL

025-257-4445

Email

hwd24002@nuhw.ac.jp


Public contact

Name of contact person

1st name Kako
Middle name
Last name Tanabe

Organization

Graduate School, Niigata University of Health and Welfare

Division name

Institute for Human Movement and Medical Sciences

Zip code

950-3198

Address

1398 Shimami-cho, Kita-ku, Niigata-city, Niigata, Japan

TEL

025-257-4445

Homepage URL


Email

hwd24002@nuhw.ac.jp


Sponsor or person

Institute

Graduate School, Niigata University of Health and Welfare

Institute

Department

Personal name



Funding Source

Organization

Graduate School, 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

1398 Shimami-cho, Kita-ku, Niigata-city, Niigata, Japan

Tel

025-257-4455

Email

rinri@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

2025 Year 04 Month 07 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 03 Month 07 Day

Date of IRB


Anticipated trial start date

2025 Year 04 Month 15 Day

Last follow-up date

2027 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 04 Month 04 Day

Last modified on

2025 Year 04 Month 04 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000065706