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Completed

NCT Number: NCT01656772

Vdrive Evaluation of Remote Steering and Testing in Lasso Electrophysiology Procedures Study

This study will evaluate the use of a robotic device that is remotely controlled to maneuver a circular mapping catheter in the left atrium during Atrial Fibrillation (AF) ablation procedures.

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Key information

Age range

18 year–80 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

ZNA Campus Middelheim Lindendreef 1, Antwerp, Antwerpen, Belgium

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About this study

Key to the success of an electrophysiology procedure is the ability to accurately map, sense and pace the heart. Electrophysiology mapping catheters are available in a variety of shapes and electrode configurations. The majority of these catheters are manipulated manually by the physician. The Vdrive simplifies these manipulations by allowing an operator to mechanically advance, retract, rotate, deflect and maneuver a circular mapping catheter. The circular mapping catheter is not altered in structure, function or indication in the same manner as the predicate device (Cardiodrive Catheter Advancement System).

This is a prospective, randomized, non-blinded, controlled study comparing manual navigation of a circular mapping catheter with mechanical navigation by the Vdrive. A total of 120 patients are expected to complete the study: 80 patients in the Vdrive navigation arm and 40 patients in the manual navigation arm. Patients will be enrolled at a minimum of one site in the European Union where the product is currently marketed and the United States, where the Vdrive is considered to be investigational.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Left atrial AF ablation procedure requiring the use of a Lasso mapping catheter
  • Subject must be at least 18 years of age
  • Subject must be male, female of no childbearing potential, or a female that has a negative pregnancy test prior to randomization

Exclusion criteria

  • Unable to safely expose subject to a magnetic field
  • Prior AF ablation procedure
  • Patients with fewer than 4 PVs are excluded
  • Patients with persistent AF in whom early recurrence of AF following cardioversion would preclude completion of the pacing maneuvers described in the protocol or patients with other conditions that would similarly preclude completion of the pacing maneuvers
  • Contraindication to procedure or unable to return for follow-up
  • History of clotting disorder, bleeding abnormalities or contraindication to anticoagulation
  • Actively participating in other cardiac device trial(s)
  • Currently pregnant
  • Under 18 years of age
  • Prosthetic valves
  • Atrial abnormalities (thrombus, myxoma or baffle)
  • Other exclusions per the investigator

Treatment and study plan

Vdrive Lasso navigation

Device

Remote robotic Lasso navigation

Manual Lasso navigation

Procedure

Manually maneuver a Lasso catheter

Primary outcomes

  1. The Primary Effectiveness Endpoint is the Successful Navigation and EGM Recording of Each Pre-specified Pulmonary Vein Per Procedure Between Both the Control and the Investigational Device Groups.

    Time frame: Peri-procedural

    Success was navigating and sensing by obtaining an EGM at the pre-specified targeted PVs. The null hypothesis was to be tested at the α = 0.05 significance level using a test statistic Z based on the Farrington and Manning likelihood score statistic with adjustment to take into account the correlation between multiple observations (PVs) on the same subject. The null hypothesis was to be rejected if Z > 1.645 or, equivalently, if the corresponding p-value was less than 0.05.

  2. Safety Outcome to be Assessed by Comparing the Rate of Adjudicated Serious Adverse Events Within 7 Days of the Procedure Between Both the Control and the Investigational Device Groups.

    Time frame: 7 days Follow-up

    The Vdrive will allow physicians to manipulate compatible circular mapping catheters while maintaining a safety profile that is not inferior to manual circular catheter navigation. The one-sided null hypothesis was to be tested at the α = 0.05 significance level using a standard unpooled asymptotically normal test statistic. The null hypothesis was to be rejected if Z < -1.7046 or, equivalently, if the corresponding p-value was less than 0.05.

Sponsors and collaborators

Lead sponsor

Stereotaxis

Industry

Registry information

Acronym: VERSATILE

Important dates

Study start
2012
Primary completion
2013
Study completion
2013
First posted
Aug 3, 2012
Registry last updated
Jul 1, 2015

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

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This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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