Can a smarter pacemaker save your heart?
NCT ID NCT05214365
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether a newer pacemaker method (conduction system pacing) can better prevent heart muscle weakening compared to the standard method. Researchers will enroll 200 adults who need a pacemaker for a slow heart rhythm. The goal is to see which approach reduces the risk of heart failure and other complications.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Pacemaker implantation (conventional vs. conduction system pacing)
- What this could lead to
- If successful, this could show that a specific pacing method reduces the risk of pacemaker-induced heart damage, leading to better long-term outcomes for patients.
- What could go wrong
- This is a relatively small, early-stage study. The results may not apply to all patients, and the benefits of one pacing method over the other may be small or not clinically significant.
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
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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
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About 200 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Feb 2022
- Expected to finish
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Sep 2026
An estimate. End dates often move.
- Lead sponsor
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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
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18 to 100 years
- Sex
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Anyone
- Healthy volunteers
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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 Hide 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: * The patient must be ≥ 18 years of age. * The patient must indicate their acceptance to participate in the study by signing an informed consent document. * Patients with EF\> 50% and indication for pacemaker implantation due to atrial-ventricular block according to current clinical guidelines. Exclusion Criteria: * Inability to understand and sign the informed consent. * Patients with severe comorbidities and life expectancy \<1 year. * Patients with severe cognitive impairment or other comorbidities resulting in dependence for basic activities of daily life. * Patients who cannot come to our center to carry out the follow-up of the study.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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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
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Hospital Clinic of Barcelona
RECRUITINGBarcelona, 08036, Spain
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Can a pacemaker slip in through the neck vein?
- Can a smarter pacemaker lead placement spare the heart after surgery?
- Could a pacemaker also treat high blood pressure? a new device aims to do both.
- Could a pacemaker tame stubborn high blood pressure?
- Freezing or burning heart nerves: which works best for slow heartbeat?