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Persistent Atrial FibrillationRAPID-AFNCT03064451

Repetitive Activation Patterns and Focal Impulses Identification and Ablation in Persistent AF

A study testing cartofinder guided ablation followed by PVI in people with Persistent Atrial Fibrillation, run by Biosense Webster, Inc. at 7 sites in 4 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 primary purpose of this study is to assess the effectiveness of using CARTOFINDER™ maps created by the RHYTHMFINDER-192 catheter and the CARTOFINDER™ Algorithm to terminate persistent atrial fibrillation (PsAF) to either Normal Sinus Rhythm or Atrial Tachycardia compared to pulmonary vein isolation (PVI) in… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Persistent Atrial Fibrillation
What is being tested?
cartofinder guided ablation followed by PVI
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
60 participants
Where
7 sitesin 4 countries
Study dates
22 Feb 2017to 10 Apr 2019
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

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

  • Age > 18 years.
  • Patients who have signed the Patient Informed Consent Form (ICF)
  • Scheduled to undergo a clinically-indicated catheter ablation procedure for treatment of
  • persistent atrial fibrillation (defined as continuous atrial fibrillation that is sustained beyond seven consecutive days).
  • drug-resistant atrial fibrillation. (failed 1 or more class I or III antiarrhythmic drugs) and demonstrating Persistent AF (requiring drugs or electrical shock to terminate AF)
  • In AF at the time of the baseline CARTOFINDER™ Map (spontaneous)
  • Left Atrium (LA) must demonstrate sufficient electrical activity to allow for the identification of ablation targets.
  • Able and willing to comply with all pre-, post-, and follow-up testing and requirements (e.g. patients not confined by a court ruling)

Who cannot join

  • Paroxysmal Atrial Fibrillation
  • Continuous AF > 12 months (1-Year) (Longstanding Persistent AF) Subjects previously diagnosed as Long Standing Persistent (LSP) but have demonstrated the ability to maintain Normal Sinus Rhythm for >30 days after cardioversion and have not been in AF greater than 1 year at the time of the procedure remain eligible for inclusion.
  • Previous ablation procedure for PsAF (defined as ablations involving more than only PV isolation)
  • Patients with a left atrial size >55 mm (echocardiography, parasternal long axis view).
  • Inability to restore sinus rhythm for 30 seconds or longer in the opinion of the investigator.
  • Significant congenital anomaly or medical problem that in the opinion of the investigator would preclude enrollment in this study.
Show all 18Show fewer
  • Atrial arrhythmia patients with structural atrial disease such as a prior history of atriotomy from prior atrial surgery, presence of an atrial septal defect, and/or presence of an atrial septal closure patch.
  • History of or current blood clotting or bleeding abnormalities, contraindication to systemic anticoagulation (i.e., heparin, warfarin, dabigatran, or a direct thrombin inhibitor).
  • significant pulmonary disease, cardiac surgeries, unstable angina, uncontrolled heart failure, acute illness or systemic infection, or any other disease or malfunction that would preclude treatment in the opinion of the investigator.
  • Current enrollment in a study evaluating another device or drug.
  • A complex arrhythmia secondary to electrolyte imbalance, thyroid disease, or reversible or non-cardiac cause.
  • Any cardiac surgery within the past 60 days (2 months) (includes PCI)
  • Subjects that have ever undergone valvular cardiac surgical procedure (i.e., ventriculotomy, atriotomy, and valve repair or replacement and presence of a prosthetic valve)
  • Prior ICD or pacemaker implanted
  • Presence of intramural thrombus, tumor or other abnormality that precludes catheter introduction or manipulation.
  • Presence of a condition that precludes vascular access.
  • Subject has a contra-indication to the device under study per the IFU
  • Women of child bearing potential whom are pregnant, lactating, or planning to become pregnant during the course of the trial.

Trial locations and contacts

7 sites in 4 countries.

7 sites in 4 countries

Belgium3 sites
  • OLV Aalst

    Aalst, 9300

  • AZ Sint-Jan Brugge

    Bruges, 8000

  • Universitair Ziekenhuis Antwerpen

    Edegem, 2060

Other trials in Belgium

United Kingdom2 sites
  • St Bartholomew's hospital

    London, EC1A 7BE

  • London Health Sciences Center

    London, W12 0NN

Other trials in United Kingdom

Canada1 site
  • Southlake Regional Health Centre

    Newmarket, Ontario, ON L3Y 2P9

Other trials in Canada

Czechia1 site
  • Nemocnice České Budějovice

    České Budějovice, 370 01

Other trials in Czechia

About this study

Official title: Repetitive Activation Patterns and Focal Impulses Identification and Ablation in Persistent AF Using the RHYTHMFINDER-192

The primary purpose of this study is to assess the effectiveness of using CARTOFINDER™ maps created by the RHYTHMFINDER-192 catheter and the CARTOFINDER™ Algorithm to terminate persistent atrial fibrillation (PsAF) to either Normal Sinus Rhythm or Atrial Tachycardia compared to pulmonary vein isolation (PVI) in treating PsAF. The RHYTHMFINDER-192 catheter is investigational, while the CARTOFINDER™ system is CE marked in Europe.

All subjects with persistent AF who are scheduled to undergo a clinically indicated ablation procedure for management of their persistent AF will be the target population for screening. The study will enroll approximately 40-70 subjects. Subjects will undergo CARTOFINDER™ guided ablation (CFGA) followed by PVI. Subjects will have follow-up visits at 7 days, 3, 6 and 12 months postprocedure.

Being tested
cartofinder guided ablation followed by PVI
Keywords
persistent atrial fibrillation - ablation procedure
Medical subject headings
Atrial Fibrillation

What participants receive

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

  • cartofinder guided ablation followed by PVIProcedure or surgery

    cartofinder guided ablation followed by PVI

Study groups in NCT03064451
Study groupRoleWhat they receive
InterventionExperimentalcartofinder guided ablation followed by PVI
Receives: Procedure: cartofinder guided ablation followed by PVI

What is being measured

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

  1. Percentage of Participants With Acute Success Post CartoFinder Guided Ablation (CFGA) Only (Before Pulmonary Vein Isolation [PVI] and Without Cardioversion).

    Acute success defined as rate of conversion of Atrial Fibrillation to Normal Sinus Rhythm or Atrial Tachycardia, after CARTOFINDER Guided Ablation (CFGA) only (before Pulmonary Vein Isolation [PVI] and without cardioversion).

    Measured: Up to 7 days

  2. Percentage of Participants With Acute Success Post CartoFinder Guided Ablation (CFGA) and Pulmonary Vein Isolation (PVI) Without Cardioversion

    Acute success defined as rate of conversion of Atrial Fibrillation to Normal Sinus Rhythm or Atrial Tachycardia, after CFGA and PVI without Cardioversion.

    Measured: Up to 7 days

  3. Percentage of Participants With Procedural Success

    Procedural success defined as the conversion of Atrial Fibrillation to Normal Sinus Rhythm or Atrial Tachycardia after overall ablation procedure, with or without the need for cardioversion.

    Measured: Up to 7 days

  4. Percentage of Participants With Recurrence of Atrial Fibrillation, Atrial Flutter, and Atrial Tachycardia Episodes of Greater Than or Equal to (>=) 30 Seconds to Measure the Effectiveness Success Rate for up to 12 Months

    Documented AF/AT/AFL recurrence is defined as any occurrence of documented (symptomatic) atrial fibrillation, atrial flutter, and atrial tachycardia episodes >= 30 seconds during the post-blanking period (Day 91-365). Here 'HM' signifies Holter monitoring.

    Measured: Up to 12 months

  5. Number of Participants With Early-onset Primary Adverse Events

    Incidence of early-onset (within 7 days of the initial mapping and ablation procedure) Primary Adverse Events (PAEs) was reported. PAEs included death, Atria-Esophageal Fistula, Cardiac Tamponade/Perforation, Myocardial Infarction, Stroke/Cerebrovascular Accident, Thromboembolism, Transient Ischemic Attack, Diaphragmatic Paralysis, Pneumothorax, Heart Block, Pulmonary Vein Stenosis, Pulmonary Edema (Respiratory Insufficiency), Pericarditis and Major Vascular Access Complication/Bleeding.

    Measured: Up to 7 days

Secondary outcomes (6)
  1. Number of Participants With Confirmed Entrance Block After Adenosine/Isoproterenol Challenge

    Number of participants with confirmed entrance block after adenosine/isoproterenol challenge was reported.

    Measured: Up to 12 months

  2. Change of Intra-cycle Length From Pre-CFGA (Baseline) to Post-CFGA and Post-PVI

    Change of intra-cycle length from pre-CFGA to post-CFGA and post-PVI is reported to measure the slowing for the overall Atrial Fibrillation rate in both atrium's.

    Measured: Pre-CFGA (Baseline) to Post-CFGA and Post-PVI (Up to 7 days)

  3. Number of Participants With Serious Adverse Device Effects (SADEs) up to 12 Months

    Any serious adverse event which was related to the device and/or the procedure was defined as a SADE.

    Measured: Up to 12 months

  4. Number of Participants With All Serious Adverse Events (SAEs) up to 12 Months

    Number of participants with SAEs will be evaluated. An SAE is any AE that results in: death, persistent or significant disability/incapacity, requires inpatient hospitalization or prolongation of existing hospitalization, is life threatening experience, is a congenital anomaly/birth defect, is suspected transmission of any infectious agent via a medicinal product, is medically important, and may jeopardize participant or may require medical or surgical intervention to prevent one of the outcomes listed above.

    Measured: Up to 12 months

  5. Number of Participants With Adverse Device Effects (ADEs) up to 12 Months

    Number of participants with adverse device effects was reported. Adverse Device Effect (ADE's) are adverse events related to the use of an investigational medical device. This definition includes adverse events resulting from insufficient or inadequate instructions for use deployment, implantation, installation, or operation, or any malfunction of the investigational medical device. This definition includes any event resulting from use errors or from intentional misuse of the investigational medical device.

    Measured: Up to 12 months

  6. Number of Participants With Procedural Related Serious Adverse Event and Non-serious Adverse Events

    An adverse event (AE) is any untoward medical occurrence in a clinical study participant administered a medicinal (investigational or non investigational) product. An AE does not necessarily have a causal relationship with treatment and therefore can be any unfavorable and unintended sign (including an abnormal finding), symptom, or disease temporally associated with use of a medicinal product, whether or not related to that medicinal product. TEAEs were defined as AEs that were reported or worsened on after start of study drug(s) dosing through safety follow-up visit. A serious adverse event (SAE) is any untoward medical occurrence that at any dose resulting in any of following outcomes: results in death, is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect, is a suspected transmission of any infectious agent via a medicinal product.

    Measured: Up to 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 posted27 Feb 2017
  2. Study start22 Feb 2017
  3. Primary completion10 Apr 2019
  4. Study completion10 Apr 2019

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 N/A
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
60 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03064451
Sponsor's protocol ID
RAPID-AF
Acronym
RAPID-AF
Status last verified
May 2020
First submitted
22 Feb 2017
Last updated
11 May 2020
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

A study testing cartofinder guided ablation followed by PVI in people with Persistent Atrial Fibrillation, run by Biosense Webster, Inc. at 7 sites in 4 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 8 inclusion and 18 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 11 May 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 7 sites in Belgium, United Kingdom, Canada, Czechia. 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.

Are results available for this study?

Yes. Results are posted in the registry (first posted 21 Apr 2020). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Percentage of Participants With Acute Success Post CartoFinder Guided Ablation (CFGA) Only (Before Pulmonary Vein Isolation [PVI] and Without Cardioversion). (time frame: Up to 7 days). The study lists 5 primary outcomes in all. 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 11 May 2020.

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