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Congestive Heart FailureHis-SYNCNCT02700425

His Bundle Pacing Versus Coronary Sinus Pacing for Cardiac Resynchronization Therapy

A study testing CRT Pacemaker in people with Congestive Heart Failure, run by University of Chicago at 8 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The goal of this study is to compare the effectiveness of pacing from a physiologic His bundle (HB) lead position versus with the standard coronary sinus (CS) lead position in subjects with heart failure undergoing cardiac resynchronization therapy (CRT). Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Congestive Heart Failure
What is being tested?
CRT Pacemaker
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
41 participants
Where
8 sitesUnited States
Study dates
17 May 2016to 31 Jul 2020
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients at least 18 years of age
  • LV systolic dysfunction with LVEF ≤ 35%
  • Evidence of intraventricular conduction delay with QRS duration > 120 msec
  • NYHA Class II, III, and ambulatory Class IV heart failure with either ischemic or nonischemic cardiomyopathy and patients with NYHA Class I symptoms and ischemic cardiomyopathy
  • Left ventricular ejection fraction (LVEF) ≤ 35%, sinus rhythm (SR), left bundle-branch block (LBBB) morphology, and QRS duration ≥ 150 msec, and NYHA Class II, III, or ambulatory Class IV patients on goal-directed medical therapy (GDMT) [Class I]
  • LVEF ≤ 35%, SR with LBBB with QRS 120-149 msec on GDMT [Class IIa]
Show all 11Show fewer
  • LVEF ≤ 35%, SR with non-LBBB with QRS ≥ 150 msec on GDMT [Class IIa]
  • LVEF ≤ 35%, in AF if medication or AV nodal ablation will allow near 100% pacing [Class IIa]
  • LVEF ≤ 35% undergoing new or replacement device with anticipated >40% ventricular pacing on GDMT [Class IIa]
  • LVEF ≤ 30%, ischemic etiology of HF, SR with LBBB ≥ 150 msec and NYHA Class I symptoms on GDMT [Class IIb]
  • LVEF ≤ 35%, SR with non-LBBB with QRS 120-149 msec, NYHA Class III/ambulatory Class IV HF on GDMT [Class IIb] LVEF ≤ 35%, SR with non-LBBB with QRS ≥ 150 msec, NYHA Class II HF on GDMT [Class IIb]

Who cannot join

  • Existing CRT device
  • Inability of patient capacity to provide consent for themselves either due to medical or psychiatric comorbidity
  • Pregnancy
  • Participation in other trials
  • Difficulty with follow-up

Trial locations and contacts

8 sites in 1 country.

8 sites in 1 country

United States8 sites
  • Northwestern University

    Chicago, Illinois, 60611

  • Rush University Medical Center

    Chicago, Illinois, 60612

  • The University of Chicago

    Chicago, Illinois, 60637

  • Indiana University

    Indianapolis, Indiana, 46202

  • The University of California, Los Angeles

    Los Angeles, California, 90095

  • Baptist Health Louisville

    Louisville, Kentucky, 40207

  • Edward Hospital

    Naperville, Illinois, 60540

  • Geisinger Wyoming Valley Medical Center

    Wilkes-Barre, Pennsylvania, 18711

Other trials in United States

About this study

The goal of this study is to compare the effectiveness of pacing from a physiologic His bundle (HB) lead position versus with the standard coronary sinus (CS) lead position in subjects with heart failure undergoing cardiac resynchronization therapy (CRT). While placement of left ventricular leads via the coronary sinus has anatomic limitations, we hypothesis that the achievement of QRS narrowing with His bundle capture will be superior for improving systolic function by echocardiographic indices (ejection fraction and strain) and quality of life and decreased rehospitalization and mortality.

Read the detailed description

This is a randomized, single-blinded study of 40 patients to a strategy of HB pacing versus CS pacing, and remain blinded to their treatment allocation. Both treatment options use standard-of-care, FDA-approved devices. The distinction is only in the allocation toward HB pacing and CS pacing. Treating physicians will be aware of assignment in order to facilitate routine device follow-up. Echocardiographic and electrocardiographic evaluation will also be performed in a blinded manner.

Cross-over is permitted between treatment group allocation if:

  • CS lead cannot be placed due to difficult cannulation of the CS, limited branches at the posterolateral or lateral wall, or phrenic nerve capture. These subjects may then cross-over to HB pacing.
  • HB pacing subjects may cross-over if HB lead cannot be positioned with adequate stability and reasonable pacing output, or if QRS width does not narrow by at least 20% or to a QRS width of ≤ 130 msec.

Implant procedure will be per routine percutaneous access, as is standard for pacemaker and ICDs. All subjects will receive an FDA-approved cardiac resynchronization therapy pacemaker or defibrillator device, as per standard of care outlined for the subject. In order to facilitate optimal lead placement, arterial access for levo-phase CS angiography and/or LV septal mapping to characterize site of bundle-branch block may also be performed, at the discretion of the implanting physician per his/her standard practice.

Follow-up will be performed at 2 weeks post-implant for incision check and device interrogation as is standard of care. In addition, routine device and clinical follow-up will be scheduled at 1, 3, 6, and 12 months. Electrocardiography (ECG) will be performed pre-implant, prior to hospital discharge, at 3 months, 6 months, and 12 months. Echocardiography will be performed pre-implant and 6 months to evaluate for change in LVEF, chamber dimension, and wall motion with strain imaging as is standard of care in the treatment of patients with advanced heart failure. NYHA functional class and quality of life (utilizing the Kansas City Cardiomyopathy Questionnaire) will be assessed pre-implant and at 6 months.

Being tested
CRT Pacemaker
Keywords
Wide QRS, Ventricular Dyssynchrony
Medical subject headings
Heart Failure

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • CRT PacemakerDevice

    Cardiac Resynchronization Therapy (CRT) is the use of a pacemaker with two endocardial leads placed in the right atrium (RA) and right ventricle (RV). The third lead is traditionally placed in a tributary of the coronary sinus (CS) overlying the epicardial surface of the left ventricle (LV). Alternatively, the third lead may be positioned based on mapping of the common His bundle and actively fixed to achieve QRS normalization via direct His bundle capture.

Study groups in NCT02700425
Study groupRoleWhat they receive
His Bundle PacingActive comparatorSubjects will be randomized to the HB lead position with their cardiac resynchronization therapy (CRT) pacemaker. HB lead pacing will be performed with the Medtronic SelectSecure™, Model 3830 lead. Delivery of the lead utilizes a deflectable sheath, the Medtronic SelectSite™, Model C304. Both devices are FDA approved for the purpose of HB pacing. It is the only device available which is presently FDA approved for selective HB pacing.
Receives: Device: CRT Pacemaker
Coronary Sinus PacingActive comparatorSubjects will be randomized to the CS lead position with their cardiac resynchronization therapy (CRT) pacemaker. CS lead and CRT device generator selected for implant will be left to the discretion of the operator. Only FDA approved CS leads and CRT generators will be utilized in the study. There are five present manufacturers of CS leads and CRT generators: Biotronik, Boston Scientific, Medtronic, Sorin, and St. Jude Medical.
Receives: Device: CRT Pacemaker

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in Left Ventricular Ejection Fraction (LVEF)

    Change in left ventricular ejection fraction (LVEF) as measured by echocardiography in a blinded core lab.

    Measured: baseline and 6 months

  2. Change in QRS Duration

    Change in QRS duration as measured by electrocardiography

    Measured: baseline and 12 months

  3. Time to First Cardiovascular Hospitalization or Death

    Time to first cardiovascular hospitalization or death in months

    Measured: Through study completion, an average of 12 months.

Secondary outcomes (4)
  1. New York Heart Association (NYHA) Functional Class Change

    New York Heart Association (NYHA) functional class change for baseline, 6 months, and 12 months. NYHA class determines the functional status of the patient. There are classes I-IV. Class I is no symptoms or limitation of physical activity, II is slight limitation of physical activity but comfortable at rest, III marked limitation of physical activity, and IV is unable to carry any physical activity without discomfort, heart failure symptoms at rest, and discomfort increases with any physical activity as described the American Heart Association (AHA).

    Measured: baseline, 6 months, and 12 months

  2. Quality of Life Change by Kansas City Questionnaire (KCCQ)

    Quality of life change as measured by Kansas City Questionnaire (KCCQ) is a 23-item instrument that is self-administered. KCCQ measures physical function, symptoms (specifically frequency, severity, and recent change), social function, self-efficacy and knowledge, and quality of life. Subscales and Total Score range from minimum of 0-100 (maximum); higher scores show better health status. Developed and validated by Dr. John Spertus,MD of University of Missouri-Kansas City.

    Measured: baseline and 12 months

  3. Time to First Cardiovascular Rehospitalization

    Time to first cardiovascular rehospitalization in 12 months

    Measured: Through study completion, an average of 12 months

  4. Time to First Treated Ventricular Arrhythmia/Ventricular Tachycardia (VT/VF)

    Time to first treated ventricular arrhythmia/ventricular tachycardia (VT/VF) in 12 months

    Measured: Through study completion, an average of 12 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted7 Mar 2016 (estimated)
  2. Study start17 May 2016
  3. Primary completion31 Jul 2020
  4. Study completion31 Jul 2020

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
41 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02700425
Sponsor's protocol ID
IRB15-1728
Acronym
His-SYNC
Status last verified
Jul 2021
First submitted
29 Jan 2016
Last updated
5 Sep 2021
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
No

Publications

  • Upadhyay GA, Vijayaraman P, Nayak HM, Verma N, Dandamudi G, Sharma PS, Saleem M, Mandrola J, Genovese D, Tung R; His-SYNC Investigators. His Corrective Pacing or Biventricular Pacing for Cardiac Resynchronization in Heart Failure. J Am Coll Cardiol. 2019 Jul 9;74(1):157-159. doi: 10.1016/j.jacc.2019.04.026. Epub 2019 May 9. No abstract available.

    PubMed 31078637
  • Upadhyay GA, Vijayaraman P, Nayak HM, Verma N, Dandamudi G, Sharma PS, Saleem M, Mandrola J, Genovese D, Oren JW, Subzposh FA, Aziz Z, Beaser A, Shatz D, Besser S, Lang RM, Trohman RG, Knight BP, Tung R; His-SYNC Investigators. On-treatment comparison between corrective His bundle pacing and biventricular pacing for cardiac resynchronization: A secondary analysis of the His-SYNC Pilot Trial. Heart Rhythm. 2019 Dec;16(12):1797-1807. doi: 10.1016/j.hrthm.2019.05.009. Epub 2019 May 13.

    PubMed 31096064

Questions about this trial

What is this clinical trial studying?

A study testing CRT Pacemaker in people with Congestive Heart Failure, run by University of Chicago at 8 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 11 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 5 Sep 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 8 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 10 Aug 2021). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in Left Ventricular Ejection Fraction (LVEF) (time frame: baseline and 6 months). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02700425, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Sep 2021.

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