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New pacing technique aims to keep hearts pumping stronger

NCT ID NCT07585799

Disease control Sponsor: Óscar Cano Pérez Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study compares a new pacing method called conduction system pacing (CSP) to standard pacing for people with a slow heart rate and a wide QRS pattern on their ECG. The goal is to see if CSP better preserves the heart's pumping ability over one year. About 120 adults who need a permanent pacemaker will take part.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 120 people

The number the study aims to enrol. It can still change while the study runs.

Started

Jul 2025

Expected to finish

Jan 2029

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * age \> 18 years * Any indication for cardiac pacing with an expected VP burden ≤ 10% after 1- month run-in period * Baseline wide QRS (≥150 ms) with normal PR or QRS ≥ 130 ms + PR≥230 ms * LVEF≥50% * Confirmed CSP criteria * Signed and dated informed consent Exclusion Criteria: * Pregnant woman * Permanent or long-lasting atrial fibrillation * Previous PM/ICD * Unstable angina, acute Myocardial Infarction (MI), Coronary Artery Bypass Graft (CABG), Percutaneous Coronary Angioplasty (PCI), surgical valve repair or replacement within 90 days prior enrollment * Moderate-severe valvular heart disease (unrepaired) * Already included in another clinical study that could confound the results of the present study * Infiltrative disease or any other genetically or acquired primary myocardial disease * Life expectancy \< 2 years * LVEF \<50%

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Conditions

The condition(s) this trial relates to.

atrioventricular block Bradycardia heart conduction disease

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Bradycardia

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    3 sites. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Hospital Clínico Universitario Lozano Blesa

    RECRUITING

    Zaragoza, Aragon, 50009, Spain

  • Hospital Universitari i Politècnic La Fe

    RECRUITING

    Valencia, Valencia, 46026, Spain

  • Hospital Universitario Virgen de las Nieves

    RECRUITING

    Granada, Andalusia, 18014, Spain

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