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Left Bundle Branch PacingNCT05553431

Feasibility of Simplified Permanent Left Bundle Branch Pacing Without Electrophysiological Recording System

A study testing Left bundle branch pacing in people with Left Bundle Branch Pacing, run by First Affiliated Hospital of Wenzhou Medical University at 1 site in China.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

This is a prospective, single-center study of patients with an indication for ventricular pacing who attempted LBBP without electrophysiology recording system (EP system). Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Left Bundle Branch Pacing
What is being tested?
Left bundle branch pacing
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
100 participants
Where
1 siteChina
Study dates
Sep 2022to Dec 2023
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • (1) requiring ventricular pacing; (2) older than 18 years; (3) signed informed consent.

Who cannot join

  • (1) acute anterior myocardial infarction; (2) intraventricular conduction delay (IVCD); (3) ventricular septal hypertrophy (end-diastolic thickness over 15 mm).

Trial locations and contacts

1 site in 1 country.

China1 site, 1 recruiting
  • First Affliated Hospital, Wenzhou Medical University

    Wenzhou, Zhejiang, 325000

    Weijian Huang, MD, +86 138-0669-1086, weijianhuang69@126.com

    Lan Su, +86 137-3874-2616, 2512057600@qq.com

    Recruiting

Other trials in China

About this study

Official title: Feasibility of Simplified Permanent Left Bundle Branch Pacing (LBBP) Without Electrophysiological Recording System

This is a prospective, single-center study of patients with an indication for ventricular pacing who attempted LBBP without electrophysiology recording system (EP system).

Read the detailed description

Patients who meet the inclusion and exclusion criteria will be enrolled into the study. In the study, the implanter was blinded to EP system, only refer to ECG monitoring. The transition of QRS morphology from S-LBBP (or LVSP) to NS-LBBP, abrupt shortening of Stim-LVAT in lead V5, combined with LV septal-derived PVCs and obvious LBB potential in pacing system analyzer were recorded to help the implanter confirm LBB capture. Meanwhile, the technician recorded the data by EP system and evaluated the consistency of the judgment. The primary endpoints included the success rate, procedure-related information, parameters and complications during 3-month follow-up.

Being tested
Left bundle branch pacing
Keywords
Left Bundle Branch Pacing

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Left bundle branch pacingDevice

    Left bundle branch pacing by a CRT device or dual-chamber pacemaker through the pacing lead at left bundle branch region

Study groups in NCT05553431
Study groupRoleWhat they receive
No EP system GroupExperimentalPatients were performed left bundle branch pacing without EP system.
Receives: Device: Left bundle branch pacing

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Successful rate

    Success rate of left bundle branch pacing without EP system

    Measured: Immediate Postoperative

  2. Judgment coincidence rate

    Coincidence rate between the judgment made by the operator through ECG and PSA with EP system.

    Measured: Intraoperative

  3. Intraoperative complications

    Intraoperative complications were recorded

    Measured: Immediate Postoperative

  4. Postoperative complications

    Postoperative complications were recorded

    Measured: 3 months

Secondary outcomes (5)
  1. Procedure duration

    Total time required for operation

    Measured: Immediate Postoperative

  2. Fluoroscopy time

    Intraoperative time of radiation use

    Measured: Immediate Postoperative

  3. Change of threshold(V/0.5ms) from immediate postoperative

    Threshold for capturing left bundle branch during unipolar pacing

    Measured: 3 months

  4. Change of LVEF(%) from baseline

    LVEF changes before and after surgery

    Measured: 3 months

  5. Change of impedance(Ω) from immediate postoperative

    Impedance during unipolar pacing

    Measured: 3 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted23 Sep 2022
  2. Study startSep 2022 (estimated)
  3. Primary completionSep 2023 (estimated)
  4. Study completionDec 2023 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
100 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05553431
Sponsor's protocol ID
FirstWenzhouMU078
Status last verified
Jun 2022
First submitted
30 Jun 2022
Last updated
23 Sep 2022
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: all IPD that underlie results in a publication

Publications

  • Su L, Wang S, Wu S, Xu L, Huang Z, Chen X, Zheng R, Jiang L, Ellenbogen KA, Whinnett ZI, Huang W. Long-Term Safety and Feasibility of Left Bundle Branch Pacing in a Large Single-Center Study. Circ Arrhythm Electrophysiol. 2021 Feb;14(2):e009261. doi: 10.1161/CIRCEP.120.009261. Epub 2021 Jan 9.

    PubMed 33426907
  • Vijayaraman P, Subzposh FA, Naperkowski A, Panikkath R, John K, Mascarenhas V, Bauch TD, Huang W. Prospective evaluation of feasibility and electrophysiologic and echocardiographic characteristics of left bundle branch area pacing. Heart Rhythm. 2019 Dec;16(12):1774-1782. doi: 10.1016/j.hrthm.2019.05.011. Epub 2019 May 25.

    PubMed 31136869
  • Huang W, Su L, Wu S, Xu L, Xiao F, Zhou X, Ellenbogen KA. A Novel Pacing Strategy With Low and Stable Output: Pacing the Left Bundle Branch Immediately Beyond the Conduction Block. Can J Cardiol. 2017 Dec;33(12):1736.e1-1736.e3. doi: 10.1016/j.cjca.2017.09.013. Epub 2017 Sep 22.

    PubMed 29173611

Questions about this trial

What is this clinical trial studying?

A study testing Left bundle branch pacing in people with Left Bundle Branch Pacing, run by First Affiliated Hospital of Wenzhou Medical University at 1 site in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 23 Sep 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Weijian Huang, MD (+86 138-0669-1086, weijianhuang69@126.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Successful rate (time frame: Immediate Postoperative). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05553431, which also lists 3 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 23 Sep 2022.

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