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CompletedNCT01131793TOTARUpdated Jul 20, 2011

PowerAssert Radio-Frequency (RF) Guidewire Coronary In-Stent Chronic Total Occlusion (CTO)

A Phase 2 interventional study of PowerAssert RF wire in crossing coronary in-stent chronic total occlusions in Coronary Artery Disease, sponsored by Stereotaxis. Completed at 1 site in Netherlands. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2011-07-20.

Sponsored by Stereotaxis · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
5
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

A single center Pilot Clinical Registry Study of the" Acute Procedural" Safety and Efficacy of Stereotaxis PowerAssert(TM)RF Coronary Total Occlusion System assisted Angioplasty in the Treatment of Refractory Coronary Total Occlusions

Read the detailed description

Determine the safety and efficacy of the Stereotaxis PowerAssert™ 18 RF Wire System:

Primary - of recanalizing (crossing) coronary total occlusions within a stent.

Secondary - facilitated angioplasty at hospital discharge represented by

  • Event free survival
  • Anginal status, and
  • Target vessel patency
  • minimal luminal diameter (MLD).
02

Conditions studied

  • Coronary Artery Disease

Keywords

  • Coronary Artery Chronic Total Occlusion In-Stent
03

In context

Coronary Artery Disease

5,598 studies on the registry are indexed under Coronary Artery Disease; 957 are open to participants now.

This study's enrollment of 5 is below the median of 124 across 3,436 interventional studies indexed under Coronary Artery Disease.

Browse Coronary Artery Disease studies →

Lead sponsor

Stereotaxis is the lead sponsor of 11 studies on the registry; 2 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Patient eligible for elective revascularization of a native coronary vessel
  • Patient has refractory coronary total occlusion (Thrombolysis In Myocardial Infarction (TIMI) 0 flow) within a stent
  • Written Informed Consent obtained

Exclusion criteria

Exclusion Criteria:

  • Under 18 years of age
  • Current participation in another study with any investigational drug or device

    ->TIMI 0 flow at target lesion site

  • Lesion >40mm. in length
  • Factors making follow-up or repeat angiography difficult or unlikely
  • Acute myocardial infarction less than 1 month before angioplasty
  • Contra-indication to emergency coronary artery bypass surgery
  • No access to cardiac surgery
  • Contra-indication to treatment with aspirin, ticlopidine, clopidogrel or heparin
  • Angiographic evidence of thrombus (filling defect proximal to or involving the occlusion)
  • Occluded ostium of the right coronary artery or stem of left main coronary artery as target lesion
  • Totally occluded bypass graft as target vessel
  • Occlusion in an unprotected left main coronary artery
  • Ejection fraction less than 30%
  • Lesion beyond acute bends or in a location within the coronary anatomy where the catheter cannot traverse
  • Lesion within a bifurcation with a significant sidebranch >1.5mm in diameter
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
5 participants (actual)

Study arms

  • Experimental
    RF Guidewire

    Device: PowerAssert RF wire in crossing coronary in-stent chronic total occlusions

Interventions

  • DevicePowerAssert RF wire in crossing coronary in-stent chronic total occlusions

    Radio frequency ablation of chronic total occlusions within a stent of a coronary artery using Niobe Magnetic Navigation System (MNS) and the PowerAssert Radiofrequency Guidewire

    Also known as: PowerAssert RF, Magnetic RF Wire

06

What researchers measure

Primary outcomes

  1. Primary RF wire success

    Defined as reaching the true lumen of any branch distal to the total occlusion with the sole use of the RF wire with absence of major complications (Myocardial Infarction (MI), tamponade, emergency Cornary Artery Bypass graft (CABG) or death)

    Time frame: Assessed and measured during interventional procedure up to discharge-average hospital stay 1-5 days- defined in protocol as the number of days between interventional treatment and hospital discharge

Secondary outcomes

  1. Facilitated RF wire Success: Procedure Success: Clinical Success

    Facilitated RF wire success is defined as reaching the true lumen of any branch distal to the total occlusion with combined use of the RF wire and any approved mechanical guidewire with absence of major complications Procedure success defined as in-hospital device success and final residual stenosis \< 30% on visual assessment, following adjunctive angioplasty, with absence of major complications Clinical success defined as device and procedure success during the concurrent hospital stay with absence of major complication

    Time frame: Assessed and measured during interventional procedure up to discharge-average hospital stay 1-5 days- defined in protocol as the number of days between interventional treatment and hospital discharge

07

Study locations

1 site
  • Erasmus MC University Medical Center
    Rotterdam, The Netherlands, Netherlands
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 20, 2011, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT01131793
Lead sponsor
Stereotaxis
First posted
May 27, 2010
Start date
Mar 2010
Primary completion
Mar 2011
Completion
Mar 2011
Last update
Jul 20, 2011

Study contacts

Projessor Patrick W. Serruys, PhD
principal investigator · Erasmus Medical University Thoraxcenter

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jul 2011. You cannot join it, but the record below documents what was studied.

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