CellFX® Nanosecond Pulsed Field Ablation (nsPFA)™ Cardiac Surgery Clamp System to Treat Atrial Fibrillation

Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-85
SponsorPulse Biosciences, Inc.

About this trial

The primary objective of this Pivotal study is to demonstrate the safety and effectiveness of the Pulse Biosciences nsPFA™ Cardiac Surgery System in treating atrial fibrillation during concomitant cardiac surgical procedures.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Subject must be between 18 and 85 years of age

Subject is willing and capable of providing Informed Consent to undergo study procedures which include the potential for surgical AF ablation, and completion of follow-up visits as specified in the clinical study protocol

Subject has history of documented paroxysmal atrial fibrillation (AF that is intermittent and terminates within ≤ 7 days of onset) or persistent/longstanding persistent atrial fibrillation (AF that is continuous and sustains for > 7 days and requires intervention) within one year prior to enrollment. Documentation may include ECG, transtelephonic monitor (TTM), Holter monitor or telemetry strip from the study hospital or an outside physician

Subject is scheduled to undergo non-emergent cardiac surgical procedure(s) to be performed on cardiopulmonary bypass including open-heart surgery via sternotomy for one or more of the following: Mitral valve repair or replacement, Aortic valve repair or replacement, Ascending aortic aneurysms, Atrial Septal Defect (ASD)/Patent Foramen Ovale (PFO) or Coronary artery bypass procedures

Disqualifiers

Subject has an implantable electronic medical device. (i.e., pacemaker, implantable cardioverter-defibrillator (ICD), or Cardiac Resynchronization Therapy (CRT) or left atrial appendage (LAA) device

Subject has history or known to have LAA clot

Subject has a prosthetic heart valve

Stand- alone AF without indication(s) for concomitant Coronary Artery Bypass Graft (CABG) and/or valve surgery

Trial design

Design model

Single group

Treatments tested in this trial

  • CellFX® nsPFA™ Cardiac Surgery System

    Device

    Participants will receive cardiac ablation with the CellFX® nsPFA™ Cardiac Clamp

Treatment groups

135 Participants
are divided into 1 treatment group
Group A: CellFX nsPFA ClampExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

Freedom from atrial fibrillation/atrial flutter/atrial tachycardia

Freedom from AF/AFL/AT of 30 seconds or greater duration and freedom for use of new or increased dose of previously failed Class I or III antiarrhythmic drugs (AADs) prescribed to treat atrial arrhythmias.

Time frame
3-months through 6 months post-index procedure
2

Incidence of Treatment-Emergent Adverse Events

Rate of acute major adverse events (MAEs) which includes death, stroke, myocardial infarction (MI), and transient ischemic attack (TIA) or excessive bleeding (Bleeding Academic Research Consortium (BARC) 3b, 4 or 5).

Time frame
Within 30 days post-concomitant surgical procedure

Secondary outcomes

1

Acute electrical isolation of the pulmonary veins

Acute electrical isolation of the left and right pulmonary veins and left atrial posterior wall by means of either intraoperative entrance or exit block testing

Time frame
Immediately post-ablation procedure
2

Freedom from atrial fibrillation/atrial flutter/atrial tachycardia

Freedom from AF/AFL/AT of 30 seconds and freedom from use of new or increased dose of previously failed Class I or III AADs prescribed to treat atrial arrhythmias

Time frame
Within 12 months post-ablation procedure
3

Patient-Reported Outcome Measures (PROMs) for quality of life assessing well-being across physical, mental, and social domains

Quality of Life (QoL) as measured using AFEQT and SF-12 (Physical Component Summary (PCS), Mental Component Summary (MCS) and General Health (GH))

Time frame
6 and 12 months post-ablation procedure

Other outcomes

Sponsors and contacts

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