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

July 19, 2011 updated by: Stereotaxis

Total Occlusion With Angioplasty After Using a Radiofrequency Guide Wire-Magnetic-Coronary

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

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

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).

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
5

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Netherlands
    • The Netherlands
      • Rotterdam, The Netherlands, Netherlands
        • Erasmus MC University Medical Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

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:

  • 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

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: RF Guidewire
Device: PowerAssert 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
Other Names:
  • PowerAssert RF
  • Magnetic RF Wire

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Primary RF wire success
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
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)
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 Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Facilitated RF wire Success: Procedure Success: Clinical Success
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
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
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

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Stereotaxis

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Projessor Patrick W. Serruys, PhD, Erasmus Medical University Thoraxcenter

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
March 1, 2010

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
March 1, 2011

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
March 1, 2011

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
May 20, 2010

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 25, 2010

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
May 27, 2010

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
July 20, 2011

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 19, 2011

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2011

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • CLIN-019

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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