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New pacing technique could improve heart function in heart failure patients

NCT ID NCT05265520

Disease control Sponsor: University of Rochester 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 type of heart pacing (His-bundle pacing) to standard pacing in 120 adults with heart failure and right bundle-branch block. The goal is to see if the new method better improves the heart's pumping ability over 6 months. Participants will receive one of the two pacing approaches and be monitored for changes in heart function and electrical activity.

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

Dec 2022

Expected to finish

Jul 2028

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 or older (no upper age limit) * Optimal medical therapy for heart failure by current guidelines * Class IIa or IIb guideline-based indication for CRT-D implant in RBBB patients, including one of the following: * New York Heart Association (NYHA) class II HF symptoms, LVEF ≤ 30% and QRS≥ 150 ms (IIb); OR * NYHA class III-IV a HF, LVEF ≤ 35%, and QRS duration ≥ 150 ms (IIa); OR * NYHA class III-IV a HF, LVEF ≤ 35%, and QRS duration 120-149 ms (IIb) Exclusion Criteria: * Unable to obtain most recent imaging data from echocardiogram within 1 year prior to date of randomization * Left bundle branch block (LBBB) or intraventricular conduction delay (IVCD) ECG morphology * Unable or unwilling to follow study protocol * Less than 12 months life expectancy at consent * Pregnancy or planned pregnancy during duration of the study * On heart transplant list or likely to undergo heart transplant

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Conditions

The condition(s) this trial relates to.

heart failure progressive familial heart block, type 1A

As listed by the trial registrant

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

Cardiac resynchronization therapy Heart failure His bundle pacing Right bundle-branch block

How to take part

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

  1. The places running it

    14 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

  • Cedars-Sinai Medical Center

    RECRUITING

    Los Angeles, California, 90048, United States

  • Geisinger Wyoming Valley

    RECRUITING

    Wilkes-Barre, Pennsylvania, 18711, United States

  • Mission Health

    RECRUITING

    Asheville, North Carolina, 28803, United States

  • Mount Sinai Hospital

    RECRUITING

    New York, New York, 10029, United States

  • Northwestern Memorial Hospital

    RECRUITING

    Chicago, Illinois, 60611, United States

  • Rush University Medical Center

    RECRUITING

    Chicago, Illinois, 60612, United States

  • University of Arizona

    RECRUITING

    Phoenix, Arizona, 85006, United States

  • University of Chicago

    RECRUITING

    Chicago, Illinois, 60637, United States

  • University of Pennsylvania

    RECRUITING

    Philadelphia, Pennsylvania, 19104, United States

  • University of South Florida

    RECRUITING

    Tampa, Florida, 33606, United States

  • University of Vermont

    RECRUITING

    Burlington, Vermont, 05401, United States

  • Valley Health System

    RECRUITING

    Ridgewood, New Jersey, 07450, United States

  • Virginia Commonwealth University

    RECRUITING

    Richmond, Virginia, 23298, United States

  • Weill Cornell Medical College

    RECRUITING

    New York, New York, 10021, United States

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