UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000056540
Receipt number R000064612
Scientific Title Investigation of Predictive Factors for Hemodynamic Deterioration During Ventricular Arrhythmias in Patients with Left Ventricular Assist Devices
Date of disclosure of the study information 2024/12/25
Last modified on 2026/01/16 13:04:27

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Basic information

Public title

Investigation of Predictive Factors for Hemodynamic Deterioration During Ventricular Arrhythmias in Patients with Left Ventricular Assist Devices

Acronym

LVAD-CF trial

Scientific Title

Investigation of Predictive Factors for Hemodynamic Deterioration During Ventricular Arrhythmias in Patients with Left Ventricular Assist Devices

Scientific Title:Acronym

LVAD-CF trial

Region

Japan


Condition

Condition

Severe heart failure with LVAD

Classification by specialty

Cardiology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To perform a quantitative assessment of circulatory dynamics during VA or right ventricular pacing simulating VA and to search for factors that correlate with the change in cardiac coefficient from baseline.

Basic objectives2

Others

Basic objectives -Others

Exploring Predictors

Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Percent change from baseline in cardiac index (CI) during VA or RV pacing

Key secondary outcomes

Deterioration in Circulation (CI Change -10, -20, -30%)
Right atrial pressure, pulmonary artery index, pulmonary vascular resistance, cardiac output, left ventricular ejection fraction, tricuspid annular systolic distance, Left ventricular end-diastolic diameter, left atrial diameter, and valvular disease severity, baseline BNP
Percent change from baseline in mixed venous oxygen saturation (SvO2) during VA or RV pacing
Percent change from baseline in mean arterial blood pressure (mAoP) during VA or RV pacing
Percent change from baseline in LVAD flow during VA or RV pacing
LVEDD, LAD, and valvular disease severity during ventricular arrhythmias or RV pacing


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

In patients in whom sustained ventricular arrhythmia could not be induced during a standard electrophysiological study, pacing at 160 bpm and 200 bpm is performed for 5 minutes each.

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

1.Patients who underwent left ventricular assist device (LVAD) implantation between January 1, 2015, and March 31, 2027, and are currently on LVAD support.
2.Patients meeting any of the following conditions and scheduled for hemodynamic evaluation via right heart catheterization:
1).Patients undergoing routine follow-up examinations (e.g., immediately post-LVAD implantation or in preparation for heart transplantation).
2).Patients experiencing frequent activation of the low-flow alarm.
3).Patients with uncontrollable systemic congestion (e.g., pleural effusion, lower extremity edema).
4).Patients with worsening valvular disease (defined as an increase in severity by at least one grade).
3.Patients with structural heart disease, left ventricular ejection fraction <40%, and documented ventricular arrhythmias.
4.Patients aged 18 years or older at the time of consent.
5.Patients who fully understand the study protocol and provide informed consent.

Key exclusion criteria

1.Patients with sustained ventricular arrhythmias.
2.Patients deemed unsuitable for the use of an EP catheter or a Swan-Ganz thermodilution catheter.
3.Patients judged by the investigator to be inappropriate as study subjects.
4.Patients who cannot provide informed consent.

Target sample size

40


Research contact person

Name of lead principal investigator

1st name Susumu
Middle name
Last name Takase

Organization

Department of Cardiovascular medicine, Kyushu University Hospital

Division name

Cardiovascular Medicine

Zip code

812-0044

Address

3-1-1, Umade, Higashi-ku, Fukuoka city, Fukuoka

TEL

092-642-5371

Email

watanabe.tsukasa@junnai.org


Public contact

Name of contact person

1st name Tsukasa
Middle name
Last name Watanabe

Organization

Department of Cardiovascular medicine, Kyushu University Hospital

Division name

Cardiovascular medicine

Zip code

812-0044

Address

3-1-1, Umade, Higashi-ku, Fukuoka city, Fukuoka

TEL

092-642-5371

Homepage URL

https://www.cardiol.med.kyushu-u.ac.jp/

Email

watanabe.tsukasa@junnai.org


Sponsor or person

Institute

Kyushu University

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

Center for Clinical and Translational Research, Kyushu University Hospital

Address

3-1-1 Maidashi Higashi-ku Fukuoka

Tel

092-642-5082

Email

byskenkyu@jimu.kyushu-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

九州大学病院


Other administrative information

Date of disclosure of the study information

2024 Year 12 Month 25 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

Enrolling by invitation

Date of protocol fixation

2024 Year 11 Month 11 Day

Date of IRB

2024 Year 11 Month 19 Day

Anticipated trial start date

2024 Year 11 Month 19 Day

Last follow-up date

2027 Year 06 Month 30 Day

Date of closure to data entry

2027 Year 06 Month 30 Day

Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2024 Year 12 Month 23 Day

Last modified on

2026 Year 01 Month 16 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000064612