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Scientists probe Heart's electrical secrets to perfect pacing

NCT ID NCT06540521

Knowledge-focused Sponsor: Medtronic Cardiac Rhythm and Heart Failure 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 looks at the electrical signals in the heart during a special type of pacing called left bundle branch area pacing (LBBAP), used in people with heart failure or slow heart rates. Researchers will measure these signals at different pacing strengths and body positions in 75 adults who already have a pacemaker. The goal is to gather data that could help create a smarter algorithm to automatically detect when the pacing is working correctly, potentially improving therapy without extra procedures.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If successful, this could lead to a smarter algorithm that automatically adjusts heart pacing, making therapy more effective and personalized for patients.
What could go wrong
This is an observational study with only 75 participants, so results may not apply to everyone. It is designed to gather data, not to test a new treatment, so direct patient benefits are uncertain.

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.

Participants

About 75 people

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

Started

Aug 2024

Expected to finish

Jun 2026

An estimate. End dates often move.

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

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

Who is studied

The study selected two study site in China. One is a Tertiary A hospital in Shanghai, and another is a cardiovascular specialty hospital in Zhejiang Province. Both the two sites locate in the south east of China. This study will enroll 70 subjects who meet all the inclusion and exclusion criteria from the patients who have received LBBAP therapies from the two hospitals.

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: * Patients aged \>=18 years * Patients who are willing to provide Informed Consent * Patients who have received LBBAP therapy \>= 1 month for 1 to 4 months (including 1 and 4 month) * Patients implanted with a single/dual-chamber pacemaker or a CRT-P with LBBAP lead connected to RV port * Implanted device can provide at least 3-channel real-time intracardiac electrogram Exclusion Criteria: * Patients who are pregnant or have a plan for pregnancy during the study * Patients who have medical conditions that would limit study participation * Patients who were already enrolled in clinical trial(s) which would impact study participation

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Conditions

The condition(s) this trial relates to.

Bradycardia heart failure

As listed by the trial registrant

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

Bradycardia Heart failure

How to take part

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

  1. The places running it

    2 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

  • Shanghai Chest Hospital

    RECRUITING

    Shanghai, Shanghai Municipality, China

  • Zhejiang Greentown Cardiovascular Hospital

    NOT_YET_RECRUITING

    Hangzhou, Zhejiang, China

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