NCT06061627

Brief Summary

BATTLE study has been designed as a prospective, multi-center, randomized, controlled trial. This study will enroll 83 patients with chronic heart failure accompanied by intraventricular block (NICD) over an estimated recruitment period of 3 years. An LOT-CRT group will be compared with a group of conventional BiVP in the follow-up of at least 6 months. The study aimed to compare the curative effect of LOT-CRT in preserving LV systolic function with traditional BiVP in chronic heart failure patients with NICD.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
86

participants targeted

Target at P50-P75 for not_applicable heart-failure

Timeline
10mo left

Started Sep 2023

Typical duration for not_applicable heart-failure

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress76%
Sep 2023Mar 2027

Study Start

First participant enrolled

September 21, 2023

Completed
4 days until next milestone

First Submitted

Initial submission to the registry

September 25, 2023

Completed
4 days until next milestone

First Posted

Study publicly available on registry

September 29, 2023

Completed
3.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2027

Last Updated

March 13, 2025

Status Verified

March 1, 2025

Enrollment Period

3.4 years

First QC Date

September 25, 2023

Last Update Submit

March 11, 2025

Conditions

Keywords

Left bundle branch area pacing

Outcome Measures

Primary Outcomes (1)

  • Left ventricular ejection fraction(LVEF)

    Changes from baseline LVEF(unit: %) assessed by echocardiography at follow-up

    Baseline; 6-month follow-up

Secondary Outcomes (13)

  • Paced QRS duration

    Postoperative day 1; 1-month,3-month and 6-month follow-up

  • A combined clinical endpoint of all-cause mortality and heart failure hospitalization,

    6-month follow-up

  • Left ventricular end systolic volume(LVESV)

    Baseline; 3-month, 6-month follow-up

  • Left ventricular end diastolic volume(LVEDV)

    Baseline; 3-month, 6-month follow-up

  • Left ventricular end systolic diameter(LVESD)

    Baseline; 3-month, 6-month follow-up

  • +8 more secondary outcomes

Study Arms (2)

LOT-CRT group

EXPERIMENTAL

In this arm, an right artrial (RA) lead, an implantable cardioverter defibrillator (ICD) lead and a LV pacing lead are placed are conventionally implanted. A left bundle branch pacing(LBBP) lead is attempted to be placed.

Procedure: LOT-CRT group

BiVP group

ACTIVE COMPARATOR

In this arm, an RA lead , an ICD lead and a LV pacing lead are placed.

Procedure: BiVP group

Interventions

LOT-CRT groupPROCEDURE

In addition to the leads implanted in BiVP group, it is also necessary to implant the left bundle branch area pacing(LBBAP) leads LBBAP includes LBBP and LVSP. LBBP is defined if fulfilling criterion 1 and at least one in criteria 2: 1. Paced morphology of RBBD in surface lead V1 (QR, Qr, rSr', rSR' or Qrs); 2. One of the following should be met, while the pacing threshold ≤ 1.5V/0.5ms: 1. Selective LBBP capture pattern appears, with an iso-electrical window between the pacing spike and QRS onset; 2. When reducing the output voltage, the LVAT undergoes a sudden change of\>10ms; If criterion 1 is fulfilled but none in criteria 2 is met, the procedure is considered to be left ventricular septal pacing (LVSP).

LOT-CRT group
BiVP groupPROCEDURE

Implantation of a LV pacing lead is attempted using the standard-of-care technique first.

BiVP group

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Ischemic or non ischemic cardiomyopathy
  • Optimal medical therapy for at lest 3 months
  • NYHA class II-IV
  • LVEF≤35% as assessed by echocardiography
  • Sinus rhythm (may have paroxysmal atrial fibrillation)
  • QRS duration ≥ 150ms
  • Intraventricular block (NICD), QRS morphology is neither LBBB nor RBBB

You may not qualify if:

  • Valvular heart disease that requires or has undergone surgical intervention
  • After mechanical tricuspid valve replacement
  • Persistent or permanent atrial fibrillation or atrial flutter
  • Second or third degree atrioventricular block
  • Have a history of acute myocardial infarction within 3 months prior to enrollment
  • Patient's expected survival time is less than 12 months
  • Pregnant or planned to conceive
  • Ventricular septal hypertrophy (ventricular septal thickness exceeds 15mm at the end of diastole)
  • Patients with simple and persistent left superior vena cava
  • Patients with existing pacemaker implantation

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

The First Affiliated Hospital with Nanjing Medical University

Nanjing, Jiangsu, 210029, China

RECRUITING

Related Publications (2)

  • Wang Y, Zhu H, Hou X, Wang Z, Zou F, Qian Z, Wei Y, Wang X, Zhang L, Li X, Liu Z, Xue S, Qin C, Zeng J, Li H, Wu H, Ma H, Ellenbogen KA, Gold MR, Fan X, Zou J; LBBP-RESYNC Investigators. Randomized Trial of Left Bundle Branch vs Biventricular Pacing for Cardiac Resynchronization Therapy. J Am Coll Cardiol. 2022 Sep 27;80(13):1205-1216. doi: 10.1016/j.jacc.2022.07.019.

  • Jastrzebski M, Moskal P, Huybrechts W, Curila K, Sreekumar P, Rademakers LM, Ponnusamy SS, Herweg B, Sharma PS, Bednarek A, Rajzer M, Vijayaraman P. Left bundle branch-optimized cardiac resynchronization therapy (LOT-CRT): Results from an international LBBAP collaborative study group. Heart Rhythm. 2022 Jan;19(1):13-21. doi: 10.1016/j.hrthm.2021.07.057. Epub 2021 Jul 30.

MeSH Terms

Conditions

Heart Failure

Condition Hierarchy (Ancestors)

Heart DiseasesCardiovascular Diseases

Study Officials

  • Jiangang Zou

    The First Affiliated Hospital with Nanjing Medical University

    PRINCIPAL INVESTIGATOR
  • Yangang Su

    Shanghai Zhongshan Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
CARE PROVIDER, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 25, 2023

First Posted

September 29, 2023

Study Start

September 21, 2023

Primary Completion (Estimated)

March 1, 2027

Study Completion (Estimated)

March 1, 2027

Last Updated

March 13, 2025

Record last verified: 2025-03

Data Sharing

IPD Sharing
Will not share

Locations