UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000051017
Receipt number R000058160
Scientific Title A role of transcutaneous vagus nerve stimulation on left ventricular function and afterload in Takotsubo syndrome
Date of disclosure of the study information 2023/06/01
Last modified on 2023/05/09 12:54:11

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Basic information

Public title

A role of transcutaneous vagus nerve stimulation on left ventricular function and afterload in Takotsubo syndrome

Acronym

A role of transcutaneous vagus nerve stimulation on left ventricular function and afterload in Takotsubo syndrome

Scientific Title

A role of transcutaneous vagus nerve stimulation on left ventricular function and afterload in Takotsubo syndrome

Scientific Title:Acronym

Vagus nerve stimulation and left ventricle in Takotsubo syndrome

Region

Japan


Condition

Condition

Takotsubo syndrome

Classification by specialty

Cardiology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Low-level tragus stimulation (LLTS) of transcutaneous vagus nerve stimulation (tVNS) is expected to stabilize the sympatho-vagal balance, and is hypothesized to improve left ventricular function and reduce afterload in patients with Takotsubo syndrome. We investigate the acute effects of LLTS compared with sham stimulation.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Changes in left ventricular global strain and afterload before and after tVNS

Key secondary outcomes



Base

Study type

Interventional


Study design

Basic design

Cross-over

Randomization

Randomized

Randomization unit

Individual

Blinding

Single blind -investigator(s) and assessor(s) are blinded

Control

Placebo

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Device,equipment

Interventions/Control_1

In the active LLTS precedent group, a device clip is attached to the left tragus, and stimulation was performed for 1 hour as vagus nerve auricular stimulation. In the Sham stimulation precedent group, a clip was attached to the left earlobe, and stimulation was performed for 1 hour.

Interventions/Control_2

After the Intervention 1, with resting for 1 hour, Sham stimulation is performed in the Active LLTS precedent group, and Active LLTS is performed in the Sham stimulation precedence group, and crossover is performed.

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

65 years-old <=

Age-upper limit


Not applicable

Gender

Female

Key inclusion criteria

1. The patients diagnosed as Takotsubo syndrome in Hiroshima City Asa Hospital
2. The Takotsubo syndrome patients who have systolic blood pressure more than 100mmHg.
3. The Takotsubo syndrome patients who provide written informed consent.

Key exclusion criteria

1. The Takotsubo syndrome patients who have multiple organ failure.
2. The Takotsubo syndrome patients who have systolic blood pressure less than 100mmHg.
3. The Takotsubo syndrome patients who have severe bradycardia.
4. The Takotsubo syndrome patients who have sepsis.
5. The Takotsubo syndrome patients who did not provide written informed consent.

Target sample size

6


Research contact person

Name of lead principal investigator

1st name Michiaki
Middle name
Last name Nagai

Organization

Hiroshima City Asa Hospital

Division name

Department of Cardiology

Zip code

731-0293

Address

1-2-1, Kameyamaminami, Aaskita-ku, Hiroshima

TEL

082-815-5211

Email

nagai10m@r6.dion.ne.jp


Public contact

Name of contact person

1st name Michiaki
Middle name
Last name Nagai

Organization

Hiroshima City Asa Hospital

Division name

Department of Cardiology

Zip code

731-0293

Address

1-2-1, Kameyamaminami, Aaskita-ku, Hiroshima

TEL

082-815-5211

Homepage URL


Email

nagai10m@r6.dion.ne.jp


Sponsor or person

Institute

Hiroshima City Asa Hospital

Institute

Department

Personal name



Funding Source

Organization

Self funding

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Hiroshima City Asa Hospital

Address

1-2-1, Kameyamaminami, Aaskita-ku, Hiroshima

Tel

082-815-5211

Email

nagai10m@r6.dion.ne.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

2023 Year 06 Month 01 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

2023 Year 04 Month 01 Day

Date of IRB


Anticipated trial start date

2023 Year 05 Month 31 Day

Last follow-up date

2025 Year 06 Month 01 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2023 Year 05 Month 09 Day

Last modified on

2023 Year 05 Month 09 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000058160


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name