Comparison of VT Ablation Outcomes Using Remote MAGNETIC Navigation Versus Manual Approach in a Low LVEF Population

NCT ID: NCT02637947

Last Updated: 2022-09-27

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

NA

Total Enrollment

182 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-01-31

Study Completion Date

2022-02-15

Brief Summary

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The study purpose is to demonstrate that ventricular tachycardia (VT) ablation using the Niobe™ ES system results in superior outcomes compared to a manual approach in subjects with ischemic scar VT in a low ejection fraction population.

Detailed Description

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This study is a randomized, single-blind, prospective, multi-center post market evaluation. Subjects will be screened for study eligibility and asked to complete written informed consent prior to any study specific testing assessments. After completing written informed consent, a total of 386 subjects will be randomized on a 1:1 basis to receive VT ablation treatment using either the Niobe ES or standard manual catheter ablation treatment using commercially available products. This will be the largest randomized VT study comparing outcomes from RMN to manually guided catheter ablation procedures. Subjects will be randomized according to a computer-generated randomization scheme. Randomization will be blocked at the study site level and subjects will be blinded to group assignment. Since quality of life measurements will be collected during follow-up, this study is single-blinded in order to mitigate patient bias. Clinical evaluations will not be masked to the treating physician.

Conditions

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Tachycardia, Ventricular

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Participants

Study Groups

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Magnetic navigation

Catheter ablation using magnetic navigation for ventricular tachycardia via remote magnetic navigation of a NaviStar RMT ThermoCool catheter, or other magnetically compatible catheter, via Stereotaxis's Niobe ES system.

Group Type EXPERIMENTAL

catheter ablation using magnetic navigation

Intervention Type DEVICE

elimination of cardiac arrhythmias through heating and destroying heart tissue with faulty electrical pathways through the use of Stereotaxis's Niobe ES System with the NaviStar RMT ThermoCool catheter or other magnetically compatible catheters.

Manual navigation

Catheter ablation using manual navigation for ventricular tachycardia via a manually navigated Thermocool catheter, or equivalent catheter.

Group Type ACTIVE_COMPARATOR

catheter ablation using manual navigation

Intervention Type DEVICE

elimination of cardiac arrhythmias through heating and destroying heart tissue with faulty electrical pathways through the use of the NaviStar ThermoCool catheter or other manually navigated catheters.

Interventions

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catheter ablation using magnetic navigation

elimination of cardiac arrhythmias through heating and destroying heart tissue with faulty electrical pathways through the use of Stereotaxis's Niobe ES System with the NaviStar RMT ThermoCool catheter or other magnetically compatible catheters.

Intervention Type DEVICE

catheter ablation using manual navigation

elimination of cardiac arrhythmias through heating and destroying heart tissue with faulty electrical pathways through the use of the NaviStar ThermoCool catheter or other manually navigated catheters.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* subject has had an ICD previously implanted
* subject has drug-refractory monomorphic VT
* subject is a candidate for ischemic VT RF ablation
* subject has had a myocardial infarction
* subject has a LVEF less than or equal to 35%

Exclusion Criteria

* subject has non-ischemic VT
* subject has a history of stroke within 1 month prior to enrollment
* subject has had an acute myocardial infarction within 30 days prior to enrollment
* subject has unstable angina
* subject has undergone cardiac surgery within 60 days prior to enrollment
* subject is pregnant or nursing
* subject has a limited life expectancy of 1 year or less (Subjects requiring LVAD/IABP intraprocedural support may be enrolled as long as life expectancy is at least 1 year following the ablation procedure.)
* subject is unable or unwilling to cooperate with study procedures
* subject has a known presence of intracardiac thrombi as determined by echocardiography
* subject has a major contraindication to anticoagulation therapy or coagulation disorder
* subject has had a previous pericarditis or cardiac tumor
* subject has had previous thoracic radiation therapy
* any other reason the investigator considers the subject ineligible
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Stereotaxis

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Andrea Natale, MD

Role: PRINCIPAL_INVESTIGATOR

Texas Cardiac Arrhythmia Research Foundation

Locations

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Florida Hospital

Orlando, Florida, United States

Site Status

Augusta University

Augusta, Georgia, United States

Site Status

University of Chicago Medical Center

Chicago, Illinois, United States

Site Status

Advocate Christ Medical Center

Oak Lawn, Illinois, United States

Site Status

The University of Kansas Medical Center

Kansas City, Kansas, United States

Site Status

Weill Cornell Medical

New York, New York, United States

Site Status

Texas Cardiac Arrhythmia Research Foundation

Austin, Texas, United States

Site Status

Intermountain Heart Institute

Murray, Utah, United States

Site Status

Westmead Hospital

Westmead, New South Wales, Australia

Site Status

AZ Sint-Jan

Bruges, West Flanders, Belgium

Site Status

ZNA Middelheim

Antwerp, , Belgium

Site Status

Na Homolce Hospital

Prague, , Czechia

Site Status

Rigshospitalet

Copenhagen, , Denmark

Site Status

Chu De Nancy - Hôpitaux De Brabois

Nancy, , France

Site Status

Onze Lieve Vrouwe Gasthuis (OLVG)

Amsterdam, , Netherlands

Site Status

Erasmus Medical Center

Rotterdam, , Netherlands

Site Status

Countries

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United States Australia Belgium Czechia Denmark France Netherlands

References

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Di Biase L, Tung R, Szili-Torok T, Burkhardt JD, Weiss P, Tavernier R, Berman AE, Wissner E, Spear W, Chen X, Neuzil P, Skoda J, Lakkireddy D, Schwagten B, Lock K, Natale A; MAGNETIC VT investigators. MAGNETIC VT study: a prospective, multicenter, post-market randomized controlled trial comparing VT ablation outcomes using remote magnetic navigation-guided substrate mapping and ablation versus manual approach in a low LVEF population. J Interv Card Electrophysiol. 2017 Apr;48(3):237-245. doi: 10.1007/s10840-016-0217-3. Epub 2017 Jan 7.

Reference Type DERIVED
PMID: 28064433 (View on PubMed)

Other Identifiers

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CLIN-021

Identifier Type: -

Identifier Source: org_study_id

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