Actively Recruiting

Phase Not Applicable
Age: 18Years - 80Years
All Genders
ID06241651

Conduction System Pacing Versus Biventricular Pacing for Heart Failure Patients With Right Ventricular Pacing Upgraded to Cardiac Resynchronization Therapy: a Prospective Multicenter Non-inferiority Randomized Controlled Study

Led by The First Affiliated Hospital with Nanjing Medical University · Updated on 2026-05-14

66

Participants Needed

1

Research Sites

N/A

Total Duration

On this page

Sponsors

T

The First Affiliated Hospital with Nanjing Medical University

Lead Sponsor

S

Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University

Collaborating Sponsor

AI-Summary

What this Trial Is About

Researchers are investigating whether conduction system pacing (CSP) is as effective as biventricular pacing (BiVP) in patients with heart failure and right ventricular pacing (RVP) who need upgrading to cardiac resynchronization therapy (CRT). This prospective, multicenter, randomized controlled trial aims to compare these two pacing methods to see if CSP is not inferior to BiVP in improving heart function. Participants will be randomly assigned to one of two groups. The experimental group will receive CSP lead placement, starting with left bundle branch pacing (LBBP) and switching to His bundle pacing (HBP) if LBBP is unsuccessful. The control group will receive traditional biventricular pacing, involving placement of right atrial, right ventricular, and left ventricular leads using standard techniques. The study will monitor participants over six months to assess treatment effects. During the study, participants will undergo evaluations including echocardiography to measure changes in left ventricular ejection fraction (LVEF), heart size, pacing parameters, and heart function classification. Additional assessments include quality of life questionnaires, walk distance tests, blood markers, and monitoring for adverse events and device-related complications at multiple time points up to six months. The primary outcome is the change in LVEF from baseline to six months after device implantation.

CONDITIONS

Brief Title

CSP Versus BiVP for Heart Failure Patients With RVP Upgraded to Cardiac Resynchronization Therapy

Who Can Participate

Age: 18Years - 80Years
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Patients with symptomatic heart failure (LVEF <50%) after right ventricular pacing for at least 3 months
  • New York Heart Association (NYHA) class II-IV
  • NT-proBNP >125pg/mL in patients with sinus rhythm, NT-proBNP >250pg/mL in patients with atrial fibrillation
  • Right ventricular pacing percentage >40%
  • Adults aged 18 to 80 years
  • Signed informed consent
Not Eligible

You will not qualify if you...

  • History of acute myocardial infarction within 3 months before enrollment
  • Frequent premature ventricular contraction (>15%) or malignant ventricular arrhythmia difficult to control
  • History of valvular heart disease intervention within 3 months before enrollment
  • After mechanical tricuspid valve replacement
  • Ventricular septal hypertrophy (≥15mm during diastole)
  • Complex congenital heart disease
  • History of heart transplantation
  • Participation in any other study
  • Pregnant or planning to become pregnant
  • Life expectancy less than 12 months

AI-Screening

AI-Powered Screening

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Your Study Journey

Screening

Duration - 2 to 4 weeks

Participants are screened for eligibility to participate in the trial.

1 visit (in-person)

Implementation

Duration - Day of device implantation

Participants receive implantation of the assigned pacing device: either conduction system pacing (including attempts of left bundle branch pacing and His bundle pacing) or biventricular pacing using standard techniques.

1 procedural visit (in-person)

Post-operative Follow-up

Duration - 6 months

Participants are monitored for device function, clinical status, and safety through scheduled follow-up visits after device implantation.

Visits 1 day before discharge, and at 1 month, 3 months, and 6 months post-implantation (in-person)

Trial Site Locations

Total: 1 location

1

The First Affiliated Hospital with Nanjing Medical University

Nanjing, Jiangsu, China, 210029

Actively Recruiting

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Research Team

J

Jiangang Zou

How is the study designed?

Study Type

INTERVENTIONAL

Masking

NONE

Allocation

RANDOMIZED

Model

PARALLEL

Primary Purpose

TREATMENT

Number of Arms

2

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Published Research Related To This Trial

Effect of right ventricular pacing lead site on left ventricular function in patients with high-grade atrioventricular block: results of the Protect-Pace study.

Gerald C Kaye, Nicholas J Linker, Thomas H Marwick...

https://pubmed.ncbi.nlm.nih.gov/25189602

Beneficial effects of upgrading to His bundle pacing in chronically paced patients with left ventricular ejection fraction <50.

Peiren Shan, Lan Su, Xiaodong Zhou...

https://pubmed.ncbi.nlm.nih.gov/29081396