nMARQ™ Pulmonary Vein Isolation System for the Treatment of Paroxysmal Atrial Fibrillation

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01824394
Recruitment Status : Terminated (Business Decision)
First Posted : April 4, 2013
Last Update Posted : January 11, 2018
Information provided by (Responsible Party):
Biosense Webster, Inc.

Brief Summary:
To demonstrate safety and effectiveness of nMARQ Catheter System [nMARQ] compared with THERMOCOOL® Navigational Family of catheters in treating subjects with drug-refractory symptomatic paroxysmal atrial fibrillation (PAF).

Condition or disease Intervention/treatment Phase
Atrial Fibrillation Device: nMARQ Navigation Catheters Device: NaviStar ThermoCool Catheters Phase 3

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 481 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single (Participant)
Primary Purpose: Treatment
Official Title: reMARQable nMARQ™ Pulmonary Vein Isolation System for the Treatment of Paroxysmal Atrial Fibrillation
Actual Study Start Date : March 1, 2013
Actual Primary Completion Date : November 26, 2017
Actual Study Completion Date : November 26, 2017

Resource links provided by the National Library of Medicine

Arm Intervention/treatment
Experimental: nMARQ Catheter
nMARQ Catheter System
Device: nMARQ Navigation Catheters
Active Comparator: NaviStar ThermoCool Catheters
THERMOCOOL® Navigational family of catheters
Device: NaviStar ThermoCool Catheters

Primary Outcome Measures :
  1. Early-onset primary adverse events [ Time Frame: 7 Days ]
    Incidence of early-onset primary adverse events within 7 days of the atrial fibrillation ablation procedure.

  2. Incidence of arrhythmia [ Time Frame: 3-12 Months ]
    Freedom from documented, symptomatic atrial fibrillation (AF), atrial tachycardia (AT), or atrial flutter (AFL) episodes based on electrocardiographic data through the effectiveness evaluation period (3-12 months follow-up post ablation procedure) in the intention to treat (ITT) population as randomized.

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. Patients with symptomatic paroxysmal AF who have had at least one AF episode documented within one (1) year prior to enrollment. Documentation may include ECG, transtelephonic monitor (TTM), Holter monitor (HM), or telemetry strip.
  2. Patients who have failed at least one antiarrhythmic drug (AAD; class I or III, or atrioventricular (AV) nodal blocking agents such as beta blockers and calcium channel blockers) as evidenced by recurrent symptomatic AF, or intolerance to the AAD.
  3. Pre-procedure anticoagulation on warfarin, rivaroxaban, or apixaban.
  4. Age 18 years or older.
  5. Signed Patient Informed Consent Form (ICF).
  6. Able and willing to comply with all pre-, post-, and follow-up testing and requirements.

Exclusion Criteria:

  1. AF secondary to electrolyte imbalance, thyroid disease, or reversible or non-cardiac cause.
  2. Previous ablation for atrial fibrillation.
  3. Patients on amiodarone at any time during the past 3 months prior to enrollment.
  4. AF episodes lasting > 7 days.
  5. Any cardiac surgery within the past 60 days (2 months).
  6. Any valvular cardiac surgical procedure (i.e., ventriculotomy, atriotomy, and valve repair or replacement and presence of a prosthetic valve).
  7. Coronary artery bypass graft (CABG) procedure within the last 180 days (6 months).
  8. Awaiting cardiac transplantation or other cardiac surgery within the next 365 days (12 months).
  9. Documented left atrial thrombus on imaging.
  10. History of a documented thromboembolic event within the past one (1) year.
  11. Diagnosed atrial myxoma.
  12. Presence of implanted cardioverter defibrillator (ICD).
  13. Significant pulmonary disease, (e.g., restrictive pulmonary disease, constrictive or chronic obstructive pulmonary disease) or any other disease or malfunction of the lungs or respiratory system that produces chronic symptoms.
  14. Significant congenital anomaly or medical problem that in the opinion of the investigator would preclude enrollment in this study.
  15. Women who are pregnant (as evidenced by pregnancy test if subject is of child-bearing age and potential) or breast feeding.
  16. Acute illness or active systemic infection or sepsis.
  17. Unstable angina.
  18. Myocardial infarction within the previous 60 days (2 months).
  19. Left ventricular ejection fraction <40%.
  20. History of blood clotting or bleeding abnormalities.
  21. Contraindication to anticoagulation (i.e., heparin, dabigatran, Vitamin K Antagonists such as warfarin).
  22. Life expectancy less than 365 days (12 months).
  23. Enrollment in an investigational study evaluating another device or drug.
  24. Uncontrolled heart failure or NYHA Class III or IV heart failure.
  25. Presence of intramural thrombus, tumor or other abnormality that precludes catheter introduction or manipulation.
  26. Presence of a condition that precludes vascular access.
  27. Left atrial size >50 mm.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01824394

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Sponsors and Collaborators
Biosense Webster, Inc.

Responsible Party: Biosense Webster, Inc. Identifier: NCT01824394     History of Changes
Other Study ID Numbers: reMARQable
First Posted: April 4, 2013    Key Record Dates
Last Update Posted: January 11, 2018
Last Verified: January 2018

Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: Yes
Device Product Not Approved or Cleared by U.S. FDA: No

Keywords provided by Biosense Webster, Inc.:
Atrial Fibrillation
Drug Refractory
Radio Frequency

Additional relevant MeSH terms:
Atrial Fibrillation
Arrhythmias, Cardiac
Heart Diseases
Cardiovascular Diseases
Pathologic Processes