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Clinical Trial Summary

This is a randomized, prospective, single-blinded trial to determine the overall rate of successful His-Purkinje conduction system pacing Optimized Trial of Cardiac Resynchronization Therapy (HOT-CRT) versus biventricular pacing using coronary sinus lead (BVP) to compare acute and mid-term outcomes. Acute outcomes include change in QRS duration pre-and post-pacing (degree of QRS narrowing) and incidence of major periprocedural complications (pericardial tamponade, need for lead revision, etc.). Mid-term outcomes include echocardiographic response at 6 months along with a composite clinical outcome of heart failure hospitalization, ventricular arrhythmias, crossover, and all-cause mortality.

Clinical Trial Description

This is a single-blinded study of 100 patients randomized to a strategy of His-Purkinje conduction system pacing Optimized Trial of Cardiac Resynchronization Therapy (HOT-CRT) versus biventricular pacing using coronary sinus (CS) lead (BVP). Both treatment options use standard-of-care, FDA-approved devices. The distinction is only in the allocation toward HOT-CRT and BVP. Treating physicians will be aware of assignment in order to facilitate routine device follow-up. Echocardiographic and electrocardiographic evaluation will also be performed in a blinded manner. Cross-over is permitted between treatment group allocation if: CS lead cannot be placed due to difficult cannulation of the CS, limited branches at the posterolateral or lateral wall, or phrenic nerve capture. These subjects may then cross-over to HOT-CRT. HOT-CRT subjects may cross-over if His or left bundle pacing lead cannot be positioned with adequate stability and reasonable pacing output, or if optimal QRS narrowing cannot be achieved. Implant procedure will be per routine percutaneous access, as is standard for pacemaker and Implantable Cardioverter Defibrillators (ICDs). . All subjects will receive an FDA-approved cardiac resynchronization therapy pacemaker or defibrillator device, as per standard of care outlined for the subject. Follow-up will be performed at 2 weeks post-implant for incision check and device interrogation as is standard of care. In addition, routine device and clinical follow-up will be scheduled at 3 and 6 months. Electrocardiography (ECG) will be performed pre-implant, prior to hospital discharge, at 3 months, and 6 months. Echocardiography will be performed pre-implant and 6 months to evaluate for change in Left Ventricular Ejection Fraction (LVEF), chamber dimensions, volumes, and change in Left Ventricular (LV) end systolic volume index as is standard of care in the treatment of patients with advanced heart failure. New York Heart Association (NYHA) functional class and quality of life (utilizing the Kansas City Cardiomyopathy Questionnaire (KCCQ) and EQ 5D) will be assessed pre-implant and at 6 months. ;

Study Design

Related Conditions & MeSH terms

NCT number NCT04561778
Study type Interventional
Source Geisinger Clinic
Status Completed
Phase N/A
Start date April 15, 2021
Completion date September 30, 2023

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