Substrate Targeted Ablation Using the FlexAbility™ Ablation Catheter System for the Reduction of Ventricular Tachycardia (STAR-VT)

Abbott

Status

Terminated

Conditions

Monomorphic Ventricular Tachycardia

Treatments

Device: Cardiac catheter ablation with ICD/CRT-D

Study type

Interventional

Funder types

Industry

Identifiers

NCT02130765

SJM-CIP-0005

Details and patient eligibility

About

To demonstrate that scar-based ventricular tachycardia (VT) ablation using the FlexAbility™ ablation catheter system results in a superior clinical outcome compared to routine drug therapy in subjects with documented Monomorphic Ventricular Tachycardia [MMVT] (both ischemic and non-ischemic) while maintaining an acceptable safety profile.

Full description

Approximately 50 centers in the United States (US) will participate in the study. Additional centers outside the US may be considered, as necessary. The anticipated enrollment duration is 48-60 months.

Enrollment

64 patients

Sex

All

Ages

18 to 75 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

Patient is receiving a new St.Jude Medical (SJM) Implantable Cardioverter Defibrillator (ICD) or SJM Cardiac Resynchronization Therapy-Defibrillator (CRT-D) implant, which has study required programing capabilities and is appropriate for remote monitoring. Subjects who have received the ICD / CRT-D up to 90 days prior to enrollment are also eligible.
Patient who has a high risk of ICD shock as shown by at least one documented Monomorphic VT (MMVT)** by one or more of the following:

Spontaneous MMVT or Inducible MMVT during electrophysiology (EP) Study or Inducible MMVT during Non-Invasive Programmed Stimulation (NIPS) Study

18 to 75 years of age
Patient has been informed of the nature of the study and has agreed to its provisions and provided written informed consent approved by the Institutional Review Board.
- Note Pleiomorphic ventricular tachycardia (VT) (multiple MMVT morphologies) is acceptable but polymorphic VT or ventricular fibrillation (VF) is not.

Exclusion criteria

Any history of stroke
S-T elevation myocardial infarction (MI) or previous cardiac surgery within 60 days prior to enrollment
Patient is pregnant or nursing
Patient has New York Heart Association (NYHA) class IV heart failure
Patient has incessant ventricular tachycardia (VT) necessitating immediate treatment (Patients with Incessant VT have continuous sustained VTs that recur promptly despite repeated intervention for termination over several (≥3) hours)
Patient has VT/VF thought to be from channelopathies
Limited life expectancy (less than one year) according to Investigator
Patient has current class IV angina
Recent coronary artery bypass graft (CABG < 60 days) or percutaneous coronary intervention (PCI < 30 days)
Patient is currently participating in another investigational drug or device study
Patient is unable or unwilling to cooperate with the study procedures
Known presence of intracardiac thrombi (i.e., positive Transesophageal Echocardiogram (TEE) for LA or LV clot). TEE is required for history of left atrium (LA) or left ventricle (LV) clot and recommended for history of atrial fibrillation (AF) with CHADS > 1
Prosthetic mitral or aortic valve
Mitral or aortic valvular heart disease requiring immediate surgical intervention
Major contraindication to anticoagulation therapy or coagulation disorder
Left Ventricular Ejection Fraction < 15%
Patient has had a previous ablation procedure for ventricular tachycardia (VT), excluding remote (> 3 months) outflow tract tachycardia
Patient has glomerular filtration rate (GFR) < 30 mL/min/1.73m2 within the past 3 months
Patient has peripheral vascular disease that precludes LV access
Patient has a premature ventricular contraction (PVC) or VT induced cardiomyopathy that is expected to resolve with ablation and will not require an ICD
Patient has reversible cause of VT
Use of left ventricular assist device (LVAD) or Tandem Heart devices (Impella and Balloon pumps are acceptable)
There is a strong clinical reason to believe that, in the opinion of the investigator, the patient only has septal scar that is deep