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Cardiac Pacing, ArtificialNCT03452462

Electrical Resynchronization and Acute Hemodynamic Effects of Direct His Bundle Pacing Compared to Biventricular Pacing

A study testing Pacing in people with Cardiac Pacing, Artificial and Cardiac Resynchronization Therapy, run by University Hospital, Geneva at 1 site in Switzerland.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The aims are to compare Direct His Bundle Pacing (DHBP) with biventricular pacing (BiV) in terms of electrical resynchronization using electrocardiographic imaging (ECGI) and also in terms of acute hemodynamical effect using finger plethysmography and conduction velocimetry. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Pacing
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
19 participants
Where
1 siteSwitzerland
Study dates
1 Apr 2019to 26 Nov 2020
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

  • Treatment of heart failure with a standard indication for CRT (NYHA III-IV, LVEF < 35% and QRS > 130ms; or LVEF< 40% and requirement for frequent ventricular pacing, irrespective of baseline QRS duration) and optimal medical treatment.
  • Permanent atrial fibrillation (allowing connection of the DHBP lead to the atrial port).
  • Patients implanted with 1) a CRT pacemaker or CRT defibrillator 2) a His lead with selective or non-selective DHBP, connected to the atrial port of the generator 3) a functional right ventricular lead and 4) a functional coronary sinus lead.
  • DHBP with selective or non-selective His capture

Who cannot join

  • Age <18 years
  • Pregnancy
  • Inability to undergo CT or an MRI (e.g. due to severe claustrophobia)
  • Inability or refusal to sign the patient informed consent form.

Trial locations and contacts

1 site in 1 country.

Switzerland1 site
  • University Hospital Geneva

    Geneva, Canton of Geneva, 1211

Other trials in Switzerland

About this study

The aims are to compare Direct His Bundle Pacing (DHBP) with biventricular pacing (BiV) in terms of electrical resynchronization using electrocardiographic imaging (ECGI) and also in terms of acute hemodynamical effect using finger plethysmography and conduction velocimetry. The study will be a randomized crossover design with acute measurements.

Read the detailed description

By recruiting native conducting tissue to relay electrical activation of the ventricles via the Purkinje fibre network, DHBP may potentially achieve greater electrical resynchronization and hemodynamic benefit compared to BiV where the electrical activation wavefronts propagate from two discrete pacing sites. Electrical synchrony achieved by these pacing modes have however never been compared. Furthermore, the acute hemodynamic effect of DHBP has been compared to BiV only in a small single study to date. The aims are to compare DHBP with BiV in terms of electrical resynchronization using electrocardiographic imaging (ECGI) and also in terms of acute hemodynamical effect using finger plethysmography and conduction velocimetry. The primary endpoint will be left ventricular activation time, with secondary endpoints including various electrical (right ventricular activation time, total ventricular activation time etc) and hemodynamic parameters (systolic pressure, cardiac output, cardiac contractility). It is expected that DHBP offers shorter left ventricular activation time (i.e. better synchrony) and hemodynamic benefit compared to BiV.

Being tested
Pacing

What participants receive

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

  • PacingDevice

    Programming of either Direct His Bundle pacing or biventricular pacing

Study groups in NCT03452462
Study groupRoleWhat they receive
Direct His Bundle PacingExperimentalPacing from the His bundle lead
Receives: Device: Pacing
Biventricular PacingActive comparatorPacing from the right ventricular and coronary sinus leads
Receives: Device: Pacing

What is being measured

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

  1. Left ventricular activation time

    Duration of left ventricular electrical activation

    Measured: 5 minutes

Secondary outcomes (5)
  1. Right ventricular activation time

    Duration of right ventricular electrical activation

    Measured: 5 minutes

  2. Total ventricular activation time

    Duration of total ventricular electrical activation

    Measured: 5 minutes

  3. Systolic pressure

    Systolic blood pressure measured by finger plethysmography

    Measured: 5 minutes

  4. Cardiac output

    Cardiac output measured by conductive velocimetry

    Measured: 5 minutes

  5. Cardiac contractility

    Cardiac contractilit measured by conductive velocimetry

    Measured: 5 minutes

Timeline

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

  1. First posted2 Mar 2018
  2. Study start1 Apr 2019
  3. Primary completion30 Aug 2020
  4. Study completion26 Nov 2020

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
Randomised
Intervention model
Crossover
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
19 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03452462
Sponsor's protocol ID
HisCRT_GVA
Status last verified
Nov 2020
First submitted
25 Feb 2018
Last updated
1 Dec 2020
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Zweerink A, Zubarev S, Bakelants E, Potyagaylo D, Stettler C, Chmelevsky M, Lozeron ED, Hachulla AL, Vallee JP, Burri H. His-Optimized Cardiac Resynchronization Therapy With Ventricular Fusion Pacing for Electrical Resynchronization in Heart Failure. JACC Clin Electrophysiol. 2021 Jul;7(7):881-892. doi: 10.1016/j.jacep.2020.11.029. Epub 2021 Feb 24.

    PubMed 33640346

Questions about this trial

What is this clinical trial studying?

A study testing Pacing in people with Cardiac Pacing, Artificial and Cardiac Resynchronization Therapy, run by University Hospital, Geneva at 1 site in Switzerland.

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 4 inclusion and 4 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: finished, as of the sponsor's last update on 1 Dec 2020. 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 Switzerland. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Left ventricular activation time (time frame: 5 minutes). 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 NCT03452462, which also lists 1 linked publication.

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 1 Dec 2020.

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