SyncAV Post-Market Trial

Running, not enrolling · Not applicable

Conditions studied: Congestive Heart Failure

In brief

The SyncAV Post-Market Trial is a prospective, randomized, multi-center trial performed to determine if cardiac resynchronization therapy (CRT) devices programmed with SyncAV ON improve long-term CRT response compared to devices programmed with conventional CRT through evaluation of changes in left ventricular (LV) reverse remodeling.

Key facts

Study ID

NCT04100148

Run by

Abbott Medical Devices

People needed

1686

Starts

2019-10-03

Expected to finish

2026-06-30

Last updated by the study team

2025-12-18

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Scheduled to receive a new CRT implant or an upgrade (Abbott CRT device and Abbott Quadripolar LV lead) from an existing implantable cardioverter defibrillator/pacemaker implant with no more than 10% RV pacing at the last device interrogation, no prior LV lead placement, AND meet the following additional criteria:
• Mild to severe heart failure despite optimal medical therapy for at least 3 months prior to signing consent. Optimal medical therapy is defined as maximal tolerated dose of beta-blockers and a therapeutic dose of angiotensin-converting enzyme inhibitor, angiotensin receptor blocker, or aldosterone antagonist
• LVEF ≤ 35% based on a prior standard of care echocardiogram
• Left bundle branch block (LBBB) as documented on an ECG. Criteria for complete LBBB should include,
• i. QRS duration ≥ 120 ms ii. QS or rS pattern in leads V1 iii. mid-QRS notching or slurring in leads I, aVL, V5, and V6 iv. Absence of Q-wave in leads V5 and V6 d. Intact AV conduction (PR interval ≤ 280 ms on surface ECG)
• At least 18 years old, or of legal age and willing and capable to give informed consent specific to each country and national laws
• Willing and able to comply with the prescribed follow-up tests and schedule of evaluations

You may not qualify if…

• Recent myocardial infarction or unstable angina within 40 days prior to signing consent
• Recent cardiac revascularization (angioplasty, stent or bypass graft) in the 4 weeks prior to signing consent or planned within 3 months following consent
• Cerebrovascular accident or transient ischemic attack in the 3 months prior to signing consent
• Any other therapeutic cardiovascular procedure (transcatheter aortic valve replacement, MitraClip, cardiac surgery, left atrial appendage closure, patent foramen ovale closure, or any ablation procedures) in the 3 months prior to signing consent
• Permanent or persistent AF at the time of signing consent
• Paroxysmal AF with at least one cardioversion within 60 days prior to signing consent
• Prior CRT device implant
• Prior His Bundle pacing implant or plan to have His Bundle pacing implant
• Pregnant or breastfeeding at the time of signing consent
• Incapacitated or unable to read or write
• Undergone cardiac transplantation or have a classification of Status 1 for cardiac transplantation or consideration for transplantation during the study follow-up period
• Life expectancy < 12 months due to any condition
• Unavailable for at least 12 months of follow-up visits
• Enrolled in or intend to participate in a clinical drug and/or device study during this clinical trial which could confound the results of this trial as determined by Abbott

Where it is running

• Arizona Cardiovascular Research Center — Phoenix, Arizona, United States
• HonorHealth — Scottsdale, Arizona, United States
• Comprehensive Cardiovascular — Bakersfield, California, United States
• Cardiovascular Consultants Heart Center — Fresno, California, United States
• USC University Hospital — Los Angeles, California, United States
• Colorado Heart & Vascular, P.C. — Lakewood, Colorado, United States
• Shands at the University of Florida — Gainesville, Florida, United States
• Heart Rhythm Solutions — Hollywood, Florida, United States
• Piedmont Heart Institute — Atlanta, Georgia, United States
• Emory University Hospital — Atlanta, Georgia, United States
• Iowa Heart Center — West Des Moines, Iowa, United States
• Baptist Health Lexington — Lexington, Kentucky, United States
• Sparrow Clinical Research Institute — Lansing, Michigan, United States
• Washington University School of Medicine — St Louis, Missouri, United States
• Catholic Medical Center — Manchester, New Hampshire, United States
• Deborah Heart & Lung Center — Browns Mills, New Jersey, United States
• Cardiovascular Associates of the Delaware Valley — Haddon Heights, New Jersey, United States
• Lourdes Cardiology Services — Voorhees Township, New Jersey, United States
• New York Presbyterian Brooklyn Methodist Hospital — Brooklyn, New York, United States
• Cleveland Clinic Foundation — Cleveland, Ohio, United States
• The Toledo Hospital — Toledo, Ohio, United States
• Hightower Clinical — Oklahoma City, Oklahoma, United States
• University of Pittsburgh Medical Center — Pittsburgh, Pennsylvania, United States
• Medical University of South Carolina — Charleston, South Carolina, United States
• Heart Center Research, LLC. — Huntsville, Alabama, United States

Full record on ClinicalTrials.gov

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