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NCT06148571Completed

Left Bundle Branch Area Pacing in Heart Failure Patients With Ejection Fraction Below Normal

Source: ClinicalTrials.gov · Last updated 21 Aug 2026

Brief summary (registry, in English)

While cardiac resynchronization therapy remains the mainstay for advanced HF, it is not always feasible due to unfavorable anatomy of coronary sinus or pacing characteristics. In such cases, left bundle branch area pacing itself or left bundle optimized cardiac resynchronization therapy could be a rescue therapy for failed or unsuccessful biventricular cardiac resynchronization therapy. However, the efficacy and safety of left bundle branch area pacing (or left bundle optimized cardiac resynchronization therapy) as rescue therapy for biventricular cardiac resynchronization therapy is largely hypothetic and lack concrete evidence still. Therefore, there is an unmet need for the registry purposed for left bundle branch area pacing among heart failure with mid-range (or mildly reduced) ejection fraction and heart failure with reduced ejection fraction patients to investigate its efficacy and safety. This study aims to investigate the efficacy and safety of left bundle branch area pacing in heart failure patients with ejection fraction below normal using Selectra catheters.

Status (registry)
Completed
Study type
Observational
Enrollment
142 (actual)
First submitted
4 Oct 2023
Start date
10 Oct 2023
Primary completion date
3 Jul 2026
Lead sponsor
Seoul National University Hospital
NCT number
NCT06148571

What you commit to

  • Study type: Observational
  • Participants enrolled: 142
  • From 10 Oct 2023 to the primary completion date, 3 Jul 2026
  • 1 site in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • Patients who are not capable of receiving a transvenous pacemaker for any reason.

Age

  • Patients aged less than 19 years.

Other

  • Pregnant.
  • Patients with an expected life expectancy of less than 1 year.
  • Patients with a mechanical valve for the tricuspid valve.
  • Patients who need atrial pacing only.

Who the study is looking for

  • Patients previously diagnosed with heart failure with mid-range(or mildly reduced) ejection fraction and heart failure with reduced ejection fraction, which was documented by an appropriate echocardiographic study (Left ventricle ejection fraction \<50%), and
  • Patients with indications of cardiac pacing or cardiac resynchronization therapy

Age in the registry: 19 years to - · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (1)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Seoul National University Hospital
Coordinator of this site? Confirm its status
SeoulSouth KoreaUnknown status

This page is information, not medical advice. Discuss any trial with your doctor.