- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05884411
Evaluation of Left Bundle Branch Area Pacing As A Rescue Strategy for Cardiac Resynchronization Therapy Non-Response
Evaluation of Left Bundle Branch Area Pacing As A Rescue Strategy for Cardiac Resynchronization Therapy Non-response in Patients With Heart Failure: A Randomized Controlled Trial
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Heart failure is one of the leading causes of death, hospitalization and poor quality of life among Veterans. For many Veterans despite receiving maximal medical therapy for heart failure with reduced ejection fraction (HFrEF), their cardiac function and functional capacity markedly decreases and they develop delays and blocks in their intrinsic conduction system (i.e. left bundle branch block). These patients then meet criteria for cardiac resynchronization therapy (CRT), which has been shown to improve cardiac function. However, up to 40% of patients who undergo CRT do not experience the expected improvement in cardiac function or clinical improvement, and this is termed "non-response".
A critical limitation of traditional CRT is that the leads do not directly utilize the heart's intrinsic conduction tissue, called the His-Purkinje system. An extensive web of conduction tissue capable of transmitting the electrical signals all over the ventricles within milliseconds, the His-Purkinje system conducts electrical stimuli much faster than conduction through a usual myocardial cell. The left bundle branch is a component of the His-Purkinje system. As such, electrophysiologic therapies that directly activate the left bundle branch area (LBBAP) have emerged as possible solutions to the problem of non-response to CRT. Although data suggests that in patients with complete LBBB, LBBAP can better optimize electrical synchrony and improve cardiac function compared to traditional bi-ventricular CRT, the efficacy has not been studied in CRT non-responders.
Currently, the most frequently used technique for assessment of the left ventricle is echocardiography because it is widely available. However, several studies have demonstrated that cardiac MRI (CMR) is superior to echocardiography in measuring left ventricle ejection fraction, particularly in terms of interstudy reproducibility. Recent studies have also demonstrated CMR imaging to be safe even in patients with non-MRI-conditional pacemakers and defibrillators. Studies have also observed that patients undergoing MRI with non-MRI-conditional pacemakers or ICDs neither experienced device/lead failure nor were they at increased risk by undergoing MRI. Despite established safety of CMR in patients with cardiac devices, it is not being routinely performed because there are concerns that the devices will cause field inhomogeneity resulting in magnetic susceptibility artifacts and non-diagnostic image quality. However, these concerns are overcome by utilizing contemporary imaging protocols with gradient echo sequences as opposed to standard steady-state free precession. By using these new protocols for CMR in this study, the investigators aim to establish the feasibility of CMR to prospectively assess cardiac function at baseline and during follow-up in patients with cardiac devices (i.e. that the image quality in subjects with implantable devices is adequate and not undermined by image artifact).
Study Type
Enrollment (Estimated)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: Selma D Carlson, MD
- Phone Number: (612) 467-3662
- Email: selma.carlson@va.gov
Study Locations
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Minnesota
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Minneapolis, Minnesota, United States, 55417-2309
- Recruiting
- Minneapolis VA Health Care System, Minneapolis, MN
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Contact:
- Joshua P Nixon, PhD
- Phone Number: 612-467-2804
- Email: Joshua.Nixon@va.gov
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Principal Investigator:
- Selma D Carlson, MD
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Child
- Adult
- Older Adult
Accepts Healthy Volunteers
Description
Inclusion Criteria:
All Veterans in this study will have undergone CRT at least 12 months prior to enrollment and determined to have non-response by all the following criteria:
- Lack of improvement in New York Heart Association (NYHA) class
- Lack of LVEF increase by > 5%
- Lack of decrease in LVESV by > 15%
Exclusion Criteria:
- Unable to understand or provide informed consent
- Unable or unwilling to participate in the protocol or comply with any of its components
- Pregnant women
- Known cancer patients, actively receiving chemotherapy
- Patients unable to pass MRI safety screening (intra-orbital metallic foreign bodies, severe claustrophobia, etc)
- Patients with anatomical difficulties for implanting LBBAP
- Patients with high risk of procedure-related infection
- Immunocompromised patients
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: LBBAP
This arm will investigate improvement in cardiac function following placement of the LBBA pacing electrode in half the patients.
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A cardiac pacing electrode is inserted into the left bundle branch area of the myocardium via a transvenous approach.
Other Names:
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Experimental: Cardiac MRI with devices
This arm will investigate the feasibility of cardiac MRI to be used to measure cardiac function in patients with cardiac devices.
|
A diagnostic imaging test using magnetic resonance imaging to evaluate cardiac function.
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Left ventricular ejection fraction by echocardiography
Time Frame: 6 months
|
CRT non-response will be evaluated by echocardiography to assess left ventricular ejection fraction (LVEF).
LVEF is reported as a percent.
|
6 months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Left ventricular ejection fraction by cardiac MRI
Time Frame: 6 months
|
Cardiac MRI (CMR) will also be used to assess left ventricular ejection fraction (LVEF).
LVEF is reported as a percent.
|
6 months
|
Interventricular mechanical delay measurement by 2D speckle-tracking echocardiography
Time Frame: 6 months
|
Left ventricular synchrony will be assessed by measuring the interventricular mechanical delay (measured in ms) using 2D speckle-tracking echocardiography.
|
6 months
|
Collaborators and Investigators
Investigators
- Principal Investigator: Selma D Carlson, MD, Minneapolis VA Health Care System, Minneapolis, MN
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- CARA-001-22F
- CX002525 (Other Grant/Funding Number: VA CSR&D)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Heart Failure With Reduced Ejection Fraction
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Novartis PharmaceuticalsCompletedHeart Failure With Reduced Ejection Fraction (HFrEF) | or Heart Failure With Mildly Reduced Ejection Fraction (HFmrEF)Netherlands, United States
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University of SienaEuropean Association of Cardiovascular ImagingActive, not recruitingHeart Failure | Heart Failure With Reduced Ejection Fraction | Heart Failure With Preserved Ejection Fraction | Heart Failure With Mid Range Ejection FractionSpain, Greece, Turkey, Portugal, Australia, Belgium, Italy, Mexico, Netherlands, North Macedonia, Romania, Tunisia
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University Hospital, AkershusNovartisActive, not recruitingHeart Failure | Heart Failure With Reduced Ejection Fraction | Heart Failure With Preserved Ejection FractionNorway
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Milton S. Hershey Medical CenterWithdrawnHeart Failure | Heart Failure With Reduced Ejection Fraction | Heart Failure With Preserved Ejection FractionUnited States
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Board of Trustees of Illinois State UniversityUniversity of Colorado, Denver; Abbott; University of North Carolina, Greensboro and other collaboratorsRecruitingHeart Failure | Heart Failure With Reduced Ejection Fraction | Heart Failure With Preserved Ejection FractionUnited States
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Medical University of South CarolinaCompletedHeart Failure | Heart Failure With Reduced Ejection Fraction | Heart Failure With Normal Ejection FractionUnited States
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Milton S. Hershey Medical CenterCompletedHeart Failure | Heart Failure With Reduced Ejection Fraction | Heart Failure With Preserved Ejection FractionUnited States
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Massachusetts General HospitalRoche DiagnosticsRecruitingCardiovascular Risk Factor | Heart Failure With Reduced Ejection Fraction | Heart Failure With Normal Ejection Fraction | Heart Failure, Right Sided | Heart Failure With Mid Range Ejection FractionUnited States
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Occlutech International ABActive, not recruitingHeart Failure With Preserved Ejection Fraction (HFpEF) | Heart Failure With Reduced Ejection Fraction (HFrEF)United States
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Fondazione Toscana Gabriele MonasterioAzienda Ospedaliera Città della Salute e della Scienza di TorinoNot yet recruitingHeart Failure | Heart Failure With Reduced Ejection Fraction | Heart Failure With Midrange Ejection FractionItaly
Clinical Trials on Left bundle branch area pacing
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Seoul National University HospitalRecruitingLeft Ventricular Ejection Fraction Less Then or Equal to 50percentKorea, Republic of
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Fu Wai Hospital, Beijing, ChinaThe First Affiliated Hospital with Nanjing Medical University; Peking University... and other collaboratorsRecruitingHeart Failure | Left Bundle Branch Area Pacing | Permanent Atrial Fibrillation | Biventricular PacingChina
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Main Line HealthMedtronic; Sharpe-Strumia Research FoundationRecruitingAortic Valve Stenosis | Complete Heart Block | High Degree Second Degree Atrioventricular Block | Pacemaker-Induced CardiomyopathyUnited States
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Fu Wai Hospital, Beijing, ChinaUnknownAtrioventricular Block | Left Bundle Branch Area PacingChina
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Yonsei UniversityNot yet recruitingAtrioventricular Block | Left Bundle Branch Area Pacing | BradyarrhythmiaKorea, Republic of
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Ludwig-Maximilians - University of MunichRecruitingAortic Valve Stenosis | AV Block | Pacing-Induced CardiomyopathyGermany
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Peking Union Medical College HospitalNot yet recruitingAtrial Fibrillation | Atrioventricular Block | Left Bundle Branch Area Pacing | Right Ventricular PacingChina
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Fu Wai Hospital, Beijing, ChinaPeking University First Hospital; Beijing Friendship Hospital; Peking Union Medical... and other collaboratorsRecruitingHeart Failure | Atrioventricular Block | Left Bundle Branch Area Pacing | Right Ventricular PacingChina
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University Medical Centre LjubljanaRecruitingBundle-Branch Block | AV Block | Atrial Fibrillation RapidSlovenia
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AZ Sint-Jan AVRecruitingHeart Failure With Reduced Ejection FractionBelgium