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New pacemaker promises longer battery, better heart rhythm

NCT ID NCT07356505

Disease control Sponsor: Universitaire Ziekenhuizen KU Leuven 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 tests a new, smaller pacemaker called Micra AV2 in 150 adults with heart block (a condition where the heart's electrical signals are blocked). The pacemaker is designed to better match the heart's natural rhythm, especially during exercise, and lasts over 15 years. Researchers will check how well it works and if it's safe in everyday life.

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 150 people

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

Started

Jan 2026

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: 1. Voluntary written informed consent of the participant or their legally authorized representative has been obtained prior to any screening procedures 2. At least 18 years of age at the time of signing the Informed Consent Form (ICF) 3. Participant will be implanted with a Micra AV2 for an approved indication for use 4. Participant with a history of any type of high-degree AV block 5. Participant is willing and able to comply the study protocol Exclusion Criteria: -1. Subject implanted with a Micra AV2 on a non-permanent basis (e.g. CIED infection) 2. Subject is pregnant (if required by local law, women of child-bearing potential must undergo a pregnancy test within seven days prior to Micra AV2 implant procedure) 3. Subject currently enrolled or planning to participate in a potentially confounding drug or device trial during the study. 4\. Subject meets any exclusion criteria required by local law (age or other)

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Conditions

The condition(s) this trial relates to.

atrioventricular block Mobitz type I atrioventricular block third-degree atrioventricular block

As listed by the trial registrant

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

Av block Av block complete Av block-2ND degree-type 1

How to take part

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

  1. The places running it

    1 site. 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

  • University Hospitals of Leuven

    RECRUITING

    Leuven, Flemish Brabant, 3000, Belgium

More trials for these conditions

Other studies related to the condition(s) this trial covers.