His Bundle Pacing Versus Coronary Sinus Pacing for Cardiac Resynchronization Therapy
His-SYNC
1 other identifier
interventional
41
1 country
8
Brief 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). 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.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started May 2016
Longer than P75 for not_applicable
8 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
January 29, 2016
CompletedFirst Posted
Study publicly available on registry
March 7, 2016
CompletedStudy Start
First participant enrolled
May 17, 2016
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 31, 2020
CompletedStudy Completion
Last participant's last visit for all outcomes
July 31, 2020
CompletedResults Posted
Study results publicly available
August 10, 2021
CompletedSeptember 5, 2021
July 1, 2021
4.2 years
January 29, 2016
June 7, 2021
August 10, 2021
Conditions
Keywords
Outcome Measures
Primary Outcomes (3)
Change in Left Ventricular Ejection Fraction (LVEF)
Change in left ventricular ejection fraction (LVEF) as measured by echocardiography in a blinded core lab.
baseline and 6 months
Change in QRS Duration
Change in QRS duration as measured by electrocardiography
baseline and 12 months
Time to First Cardiovascular Hospitalization or Death
Time to first cardiovascular hospitalization or death in months
Through study completion, an average of 12 months.
Secondary Outcomes (4)
New York Heart Association (NYHA) Functional Class Change
baseline, 6 months, and 12 months
Quality of Life Change by Kansas City Questionnaire (KCCQ)
baseline and 12 months
Time to First Cardiovascular Rehospitalization
Through study completion, an average of 12 months
Time to First Treated Ventricular Arrhythmia/Ventricular Tachycardia (VT/VF)
Through study completion, an average of 12 months
Study Arms (2)
His Bundle Pacing
ACTIVE 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.
Coronary Sinus Pacing
ACTIVE 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.
Interventions
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.
Eligibility Criteria
You may qualify if:
- 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 \[Class IIa\]
- 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 \[Class IIb\]
You may not qualify if:
- 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
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- University of Chicagolead
- University of California, Los Angelescollaborator
- Northwestern Universitycollaborator
- Rush University Medical Centercollaborator
- Geisinger Cliniccollaborator
- Indiana Universitycollaborator
- Edward Hospitalcollaborator
- Baptist Health, Louisvillecollaborator
Study Sites (8)
The University of California, Los Angeles
Los Angeles, California, 90095, United States
Northwestern University
Chicago, Illinois, 60611, United States
Rush University Medical Center
Chicago, Illinois, 60612, United States
The University of Chicago
Chicago, Illinois, 60637, United States
Edward Hospital
Naperville, Illinois, 60540, United States
Indiana University
Indianapolis, Indiana, 46202, United States
Baptist Health Louisville
Louisville, Kentucky, 40207, United States
Geisinger Wyoming Valley Medical Center
Wilkes-Barre, Pennsylvania, 18711, United States
Related Publications (2)
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.
PMID: 31078637RESULTUpadhyay 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.
PMID: 31096064RESULT
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Limitations and Caveats
This pilot study was underpowered to detect differences less than 10% between groups.The criteria for LBBB definitions impact the outcomes of CRT studies. More precise electrophysiologic definitions are necessary to refine patient selection for His bundle pacing. Longer helices, deflectable sheaths with septal orientation and variable curves may further improve His correction rates and stability of thresholds.
Results Point of Contact
- Title
- Dr. Gaurav A. Upadhyay, MD
- Organization
- The University of Chicago
Study Officials
- PRINCIPAL INVESTIGATOR
Roderick Tung, MD
University of Chicago
- PRINCIPAL INVESTIGATOR
Gaurav A. Upadhyay, MD
University of Chicago
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- No
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- PARTICIPANT
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 29, 2016
First Posted
March 7, 2016
Study Start
May 17, 2016
Primary Completion
July 31, 2020
Study Completion
July 31, 2020
Last Updated
September 5, 2021
Results First Posted
August 10, 2021
Record last verified: 2021-07
Data Sharing
- IPD Sharing
- Will not share