Status:

COMPLETED

POLARx™ Cardiac Cryoablation System Post Market Clinical Study (POLAR SMART)

Lead Sponsor:

Boston Scientific Corporation

Conditions:

Paroxysmal Atrial Fibrillation

Eligibility:

All Genders

19+ years

Brief Summary

This is a post-market study collecting real-world clinical data on safety, effectiveness and procedural success of Boston Scientific Cardiac Cryoablation System (POLARx™ System)

Detailed Description

The study will collect real-world clinical data on safety, effectiveness and procedural success of Boston Scientific Cardiac Cryoablation System (POLARx™ System) when used to perform pulmonary vein is...

Eligibility Criteria

Inclusion

  • Subjects indicated for the treatment of AF with the cryoablation system;
  • Subjects who are willing and capable of providing informed consent;
  • Subjects who are willing and capable of participating in all testing associated with this clinical study at an approved clinical investigational center;
  • Subjects who are of legal age to give informed consent specific to the national law.

Exclusion

  • Any known contraindication to an AF ablation or anticoagulation, including those listed in the IFU/Tenpubunsyo as legally approved conditions;
  • Any prior LA ablation;
  • AF secondary to electrolyte imbalance, thyroid disease, or any other reversible or non-cardiac cause;
  • Known or pre-existing severe Pulmonary Vein Stenosis;
  • Evidence of cardiac myxoma, LA thrombus or intracardiac mural thrombus;
  • Previous cardiac surgery (e.g. ventriculotomy or atriotomy, CABG, PTCA, PCI, ventricular fistula or atrial incision) and any surgery within 90 days prior to enrollment;
  • Any implanted cardiac device (e.g. PM, ICD, CRT, valve replacement, LAAO, etc) within 90 days prior to enrollment;
  • Any planned OR scheduled cardiac device procedure (e.g. PM, ICD, CRT, valve replacement, LAAO, etc) during and post PVI ablation (during and post-index procedure);
  • Any planned ablation in LA except PVI procedure and roof line ablation;
  • Any planned ablation in ventricles;
  • Subjects undergoing atrial septal defect patch or other surgical procedures at or near the atrial septal defect;
  • Subjects with severe valvular disease OR with a prosthetic - mechanical or biological - heart valve (not including valve repair and annular rings);
  • Presence of any pulmonary vein stents;
  • Subjects with active systemic infection;
  • Subjects that have vena cava embolic protection filter devices and/or known femoral thrombus;
  • Any previous history of cryoglobulinemia;
  • Subjects that are unable to undergo atrium access safely or operate in the atrium as per investigator's medical judgement;
  • Subjects with no vascular access or obstruction of the femoral vein;
  • Subjects with blood coagulation disorders or diseases;
  • Any prior history of documented cerebral infarct, TIA or systemic embolism (excluding a post-operative deep vein thrombosis (DVT)) ≤ 180 days prior to enrollment;
  • Subjects who are hemodynamically unstable;
  • The subject is unable or not willing to complete follow-up visits and examination for the duration of the study;
  • Subjects with life expectancy ≤ 1 year per investigator's medical judgement;
  • Women of childbearing potential who are, or plan to become, pregnant during the time of the study (assessment per investigator's discretion);
  • Subjects with unrecovered/unresolved Adverse Events from any previous invasive procedure;
  • Subjects who are currently enrolled in another investigational study or registry that would directly interfere with POLAR SMART study. Exception when the subject is participating in a mandatory governmental registry, or a purely observational registry with no associated treatments. Each instance must be brought to the attention of the sponsor for approval.

Key Trial Info

Start Date :

August 26 2022

Trial Type :

OBSERVATIONAL

Allocation :

ACTUAL

End Date :

October 29 2024

Estimated Enrollment :

295 Patients enrolled

Trial Details

Trial ID

NCT05282823

Start Date

August 26 2022

End Date

October 29 2024

Last Update

December 2 2025

Active Locations (19)

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Page 1 of 5 (19 locations)

1

Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital

Nagoya, Aichi-ken, Japan, 466-8650

2

Hirosaki University Hospital

Hirosaki-shi, Aomori, Japan, 036-8563

3

Chiba University Hospital

Chiba, Chiba, Japan, 260-8677

4

Kokura Memorial Hospital

Kitakyushu-shi, Fukuoka, Japan, 802-8555