NCT01824394

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).

Trial Health

55
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
481

participants targeted

Target at P50-P75 for phase_3 atrial-fibrillation

Timeline
Completed

Started Apr 2013

Longer than P75 for phase_3 atrial-fibrillation

Status
terminated

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

April 1, 2013

Completed
Same day until next milestone

Study Start

First participant enrolled

April 1, 2013

Completed
3 days until next milestone

First Posted

Study publicly available on registry

April 4, 2013

Completed
4.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 26, 2017

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 26, 2017

Completed
1 year until next milestone

Results Posted

Study results publicly available

December 12, 2018

Completed
Last Updated

February 4, 2025

Status Verified

January 1, 2025

Enrollment Period

4.7 years

First QC Date

April 1, 2013

Results QC Date

November 26, 2018

Last Update Submit

January 31, 2025

Conditions

Keywords

nMARQAtrial FibrillationDrug RefractoryRadio Frequency

Outcome Measures

Primary Outcomes (2)

  • Number of Participants With Early Onset Primary Adverse Events

    The primary safety endpoint was the incidence of early-onset primary adverse events within 7 days post the AF ablation procedure; Pulmonary vein stenosis and atrio-esophageal fistula that occurred beyond 7 days post-procedure and development of a significant pericardial effusion within 30 days post-procedure were also considered primary AEs

    30 days post-procedure

  • Incidence of Early Onset Primary Adverse Events for the Intent-to-Treat and As-Treated Population

    The primary safety endpoint was the incidence of early-onset primary adverse events within 7 days post the AF ablation procedure; Pulmonary vein stenosis and atrio-esophageal fistula that occurred beyond 7 days post-procedure and development of a significant pericardial effusion within 30 days post-procedure were also considered primary AEs

    30 days post-procedure

Study Arms (2)

nMARQ Catheter

EXPERIMENTAL

nMARQ Catheter System

Device: nMARQ Navigation Catheters

NaviStar ThermoCool Catheters

ACTIVE COMPARATOR

THERMOCOOL® Navigational family of catheters

Device: NaviStar ThermoCool Catheters

Interventions

nMARQ Catheter
NaviStar ThermoCool Catheters

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • 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.
  • 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.
  • Pre-procedure anticoagulation on warfarin, rivaroxaban, or apixaban.
  • Age 18 years or older.
  • Signed Patient Informed Consent Form (ICF).
  • Able and willing to comply with all pre-, post-, and follow-up testing and requirements.

You may not qualify if:

  • AF secondary to electrolyte imbalance, thyroid disease, or reversible or non-cardiac cause.
  • Previous ablation for atrial fibrillation.
  • Patients on amiodarone at any time during the past 3 months prior to enrollment.
  • AF episodes lasting \> 7 days.
  • Any cardiac surgery within the past 60 days (2 months).
  • Any valvular cardiac surgical procedure (i.e., ventriculotomy, atriotomy, and valve repair or replacement and presence of a prosthetic valve).
  • Coronary artery bypass graft (CABG) procedure within the last 180 days (6 months).
  • Awaiting cardiac transplantation or other cardiac surgery within the next 365 days (12 months).
  • Documented left atrial thrombus on imaging.
  • History of a documented thromboembolic event within the past one (1) year.
  • Diagnosed atrial myxoma.
  • Presence of implanted cardioverter defibrillator (ICD).
  • 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.
  • Significant congenital anomaly or medical problem that in the opinion of the investigator would preclude enrollment in this study.
  • Women who are pregnant (as evidenced by pregnancy test if subject is of child-bearing age and potential) or breast feeding.
  • +12 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Atrial Fibrillation

Condition Hierarchy (Ancestors)

Arrhythmias, CardiacHeart DiseasesCardiovascular DiseasesPathologic ProcessesPathological Conditions, Signs and Symptoms

Results Point of Contact

Title
Megan Holden
Organization
Biosense Webster, Inc.

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 1, 2013

First Posted

April 4, 2013

Study Start

April 1, 2013

Primary Completion

November 26, 2017

Study Completion

November 26, 2017

Last Updated

February 4, 2025

Results First Posted

December 12, 2018

Record last verified: 2025-01