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Paroxysmal Atrial FibrillationPhase 2GENESISNCT01430949

GENESIS Feasibility Study of the BARD Over-the-Wire Mesh Ablation System for the Treatment of Paroxysmal Atrial Fibrillation

A Phase 2 study testing Catheter Ablation of Paroxysmal Atrial Fibrillation in people with Paroxysmal Atrial Fibrillation, run by C. R. Bard at 6 sites in 3 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The Genesis Feasibility Study will collect clinical information on the use of the Bard Over-the-Wire Mesh Ablation System to access and perform electrophysiological mapping, cardiac stimulation and radiofrequency ablation in the region of the pulmonary vein (PV) ostia for the treatment of patients with Paroxysmal… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Paroxysmal Atrial Fibrillation
What is being tested?
Catheter Ablation of Paroxysmal Atrial Fibrillation
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
42 participants
Where
6 sitesin 3 countries
Study dates
Nov 2011to Aug 2013
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Symptomatic PAF refractory to at least one Class I-IV antiarrhythmic drug.
  • Minimum one documented PAF episode >30 sec duration within prior 12 months.
  • Minimum three PAF episodes during prior 12 months.
  • 18 years or older.

Who cannot join

  • AF due to reversible causes.
  • More than 2 cardioversions during the 6 months
  • Previous surgical or catheter based ablation of the LA to treat AF.
  • Permanent or persistent AF.
  • Requirement for ablation lesions other than those defined in protocol
  • LA > 50 mm in major dimension(measured by TTE).
Show all 27Show fewer
  • Any single PV > 25 mm in major diameter and/or presence of common os not suitable for ablation
  • Ejection fraction <35%.
  • Patent foramen ovale (PFO)or atrial septal defect (ASD)
  • Cardiac myopathy (e.g., HOCM, cardiac sarcoidosis).
  • Myocardial infarction in previous 2 months screening.
  • Currently unstable angina.
  • Any cardiac surgery in previous 3 months prior to screening.
  • Implantable device capable of recording cardiac rhythm, (e.g ICD, pacemaker or implantable loop recorder.
  • Clinically significant valvular heart disease or a replacement heart valve.
  • Congestive heart failure (NYHA classification III or IV).
  • Renal dialysis or creatinine > 2.0 mg/dl.
  • Contraindication to anti-coagulation therapy (e.g., warfarin, heparin).
  • Contraindication to transseptal procedure.
  • Any cerebral ischemic event, including TIA in the 6 months prior to screening.
  • Any known uncontrolled bleeding or thrombotic disorder.
  • Women who are known to be pregnant or nursing.
  • Uncontrolled hyperthyroidism.
  • Patients currently enrolled in any other study during the 30 days prior to screening.
  • Any other significant uncontrolled or unstable medical condition (e.g., active systemic infection).
  • A life expectancy of less than one year.
  • Currently documented intracardiac thrombus.

Trial locations and contacts

6 sites in 3 countries.

6 sites in 3 countries

Germany3 sites
  • Herz-und Gefässzentrum Bad Bevensen

    Bad Bevensen, 29549

  • Deutsches Herzzentrum Berlin (DHZB)

    Berlin, 13353

  • Herzzentrum Mūnchen

    Munich, 80636

Other trials in Germany

Canada2 sites
  • University Hospital

    London, Ontario, N6A 5A5

  • Southlake Regional Health Centre

    Newmarket, Ontario, L3Y8C3

Other trials in Canada

United Kingdom1 site
  • The Heart Hospital

    London, W1G 8HP

Other trials in United Kingdom

About this study

Official title: A Single-Arm Multi-Center Trial of Radiofrequency Ablation for the Treatment of Paroxysmal Atrial Fibrillation Using the Bard Over-the-Wire Ablation System

The Genesis Feasibility Study will collect clinical information on the use of the Bard Over-the-Wire Mesh Ablation System to access and perform electrophysiological mapping, cardiac stimulation and radiofrequency ablation in the region of the pulmonary vein (PV) ostia for the treatment of patients with Paroxysmal Atrial Fibrillation. Patients will be followed up for 12 months to assess the primary safety endpoint of Major Complications (a composite safety endpoint)and effectiveness, defined as Long-Term Success (freedom from recurrent atrial arrhythmia.

Read the detailed description

Atrial fibrillation (AF) is the most common sustained arrhythmia seen by the physician. Its prevalence in the population increases with age, and it is estimated to affect over 4% of the population above the age of 60. Common approaches to AF management includes the use of anti-arrhythmic drugs to control the arrhythmia.

An alternative to treatment of AF using drug therapy is ablation of cardiac tissue, with the goal of disrupting the aberrant electrical pathways that cause AF through the creation of ablation lesions within the left atrium. There are several different approaches to creating lesions to treat AF, although both substrate derived and focal AF mechanisms share a common ablation therapy protocol in which the PVs are isolated by a series of ablation lines placed endocardially, either around the PV ostia or more proximally from the PV ostia at the atrial carinae.

The Over-the-Wire Mesh Ablation System (OTW MAS) catheter is a combined mapping and ablation catheter designed to create lesions at the PV ostium. The Genesis Feasibility Study is designed to collect clinical information on the use of the OTW MAS to access and perform electrophysiological mapping, cardiac stimulation and radiofrequency ablation in the region of the pulmonary vein (PV) ostia for the treatment of patients with Paroxysmal Atrial Fibrillation (PAF).

Being tested
Catheter Ablation of Paroxysmal Atrial Fibrillation
Keywords
Paroxysmal Atrial Fibrillation, Catheter Ablation, Pulmonary Vein Isolation, Radio Frequency Ablation
Medical subject headings
Atrial Fibrillation

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Catheter Ablation of Paroxysmal Atrial FibrillationProcedure or surgery

    Also called GENESIS, BEP-4409, Bard Over-the-Wire Mesh Ablation System, OTW MAS

    Catheter ablation for the treatment of paroxysmal atrial fibrillation. A pulmonary vein isolation procedure will be performed using the OTW MAS and radiofrequency ablation.

Study groups in NCT01430949
Study groupRoleWhat they receive
Over-the-Wire Mesh Ablation SystemExperimentalNot described
Receives: Procedure: Catheter Ablation of Paroxysmal Atrial Fibrillation

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Efficacy

    Freedom from recurrence of symptomatic atrial fibrillation, atrial tachycardia or atrial flutter. Includes both acute success (successful electrical isolation of all pulmonary veins) and chronic success. Re-treatment for AF with ablation during the 3 month blanking period will not constitute a treatment failure.

    Measured: 12 months

Secondary outcomes (1)
  1. Safety

    Incidence of device-related early-onset primary serious adverse events or adverse device effects. Includes serious adverse events occurring within 7 days of the index procedure and diagnosed at any time during the follow-up period.

    Measured: 12 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted9 Sep 2011 (estimated)
  2. Study startNov 2011
  3. Primary completionAug 2013
  4. Study completionAug 2013

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
42 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01430949
Sponsor's protocol ID
BEP-4409-2010
Acronym
GENESIS
Status last verified
Sep 2013
First submitted
7 Sep 2011
Last updated
30 Sep 2013
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Catheter Ablation of Paroxysmal Atrial Fibrillation in people with Paroxysmal Atrial Fibrillation, run by C. R. Bard at 6 sites in 3 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 27 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 30 Sep 2013. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 6 sites in Germany, Canada, United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Efficacy (time frame: 12 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 30 Sep 2013.

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