Atrial FibrillationinspIRENCT04524364
A Study for Treatment of Paroxysmal Atrial Fibrillation (PAF) by Pulsed Field Ablation (PFA) System With Irreversible Electroporation (IRE)
A study testing Pulsed Field Ablation (PFA) Therapy in people with Atrial Fibrillation, run by Biosense Webster, Inc. at 13 sites in 8 countries.
Trial summary
The primary objective is to demonstrate safety and long-term effectiveness of the irreversible electroporation (IRE) system (Circular IRE Catheter and IRE Generator) when used for isolation of the atrial pulmonary veins (PVs) in treatment of participants with paroxysmal atrial fibrillation (PAF). Read more about this study
- Who is it for?
- Ages 18 to 75 years
- Conditions the study is for
- Atrial Fibrillation
- What is being tested?
- Pulsed Field Ablation (PFA) Therapy
- Type of treatment
- Medical device
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 272 participants
- Where
- 13 sitesin 8 countries
- Study dates
- 23 Aug 2020to 9 May 2023
- 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 to 75 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Diagnosed with Symptomatic paroxysmal atrial fibrillation (PAF)
- Selected for atrial fibrillation (AF) ablation procedure by pulmonary vein isolation (PVI)
- Failed at least one antiarrhythmic drug (AAD) (class I to IV) as evidenced by recurrent symptomatic atrial fibrillation AF, or intolerable or contraindicated to the AAD
- Willing and capable of providing consent
- Able and willing to comply with all pre-, post- and follow-up testing and requirements
Who cannot join
- AF secondary to electrolyte imbalance, thyroid disease, or reversible or non-cardiac cause
- Previous left atrium (LA) ablation or surgery
- Participant known to require ablation outside the PV region (example. cavotricuspid isthmus [CTI] region, atrioventricular reentrant tachycardia, atrioventricular nodal reentry tachycardia, atrial tachycardia, ventricular tachycardia and Wolff-Parkinson-White)
- Previously diagnosed with persistent AF (greater than [>] 7 days in duration)
- Severe dilatation of the LA (LAD >50 millimeter (mm) antero-posterior diameter in case of transthoracic echocardiography (TTE))
Trial locations and contacts
13 sites in 8 countries.
13 sites in 8 countries
Belgium4 sites
OLV Aalst
Aalst, 9300
AZ Sint-Jan Brugge
Bruges, 8000
Ziekenhuis Oost-Limburg Genk Campus Sint-Jan
Genk, 3600
Jessa Ziekenhuis - Campus Virga Jesse
Hasselt, 3500
Austria2 sites
Medical University Graz
Graz, 8036
Ordensklinikum Linz Elisabethinen
Linz, 4020
Canada2 sites
London Health Sciences Centre
London, Ontario, N6A 5A5
Southlake Regional Health Centre
Newmarket, ON L3Y 2P9
France1 site
Centre Hospitalier Universitaire (CHU) de Bordeaux
Bordeaux, 33600
Italy1 site
Ospedale Generale Regionale "F. Miulli"
Acquaviva delle Fonti, 70021
About this study
Official title: Pulsed Field Ablation (PFA) System for the Treatment of Paroxysmal Atrial Fibrillation (PAF) by Irreversible Electroporation (IRE)
The primary objective is to demonstrate safety and long-term effectiveness of the irreversible electroporation (IRE) system (Circular IRE Catheter and IRE Generator) when used for isolation of the atrial pulmonary veins (PVs) in treatment of participants with paroxysmal atrial fibrillation (PAF).
- Conditions
- Atrial Fibrillation
- Being tested
- Pulsed Field Ablation (PFA) Therapy
- Medical subject headings
- Atrial Fibrillation
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Pulsed Field Ablation (PFA) TherapyDevice
Participants will undergo PFA therapy with a compatible ablation catheter when used with Multi-Channel irreversible electroporation (IRE) Generator (deliver trains of high-voltage bipolar pulses of short duration on separate channels to a multi-electrode ablation catheter) and Circular IRE Catheter (indicated for use in catheter-based cardiac electrophysiological mapping (stimulating and recording) and, when used with an IRE Generator, for cardiac ablation).
| Study group | Role | What they receive |
|---|---|---|
| Participants with Paroxysmal Atrial Fibrillation (PAF) | Other | Participants with PAF and who are candidates for catheter ablation will be enrolled. Receives: Device: Pulsed Field Ablation (PFA) Therapy |
What is being measured
The primary outcome is the main question the study is designed to answer.
Number of Participants With Primary Adverse Events (PAEs)
An adverse event (AE) is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. The primary safety endpoint was the incidence of PAEs (within 7 days of the initial mapping and ablation procedure). PAEs included the following AEs: Atrio-esophageal fistula, cardiac tamponade/perforation, device or procedure related death, major vascular access complication/bleeding, myocardial infarction, pericarditis, phrenic nerve paralysis (permanent), pulmonary vein stenosis, stroke/cerebrovascular accident (CVA), thromboembolism, and transient ischemic attack (TIA).
Measured: Within 7 days post-procedure on Day 0
Kaplan-Meier Estimates of the Success Rate of Freedom From Documented (Symptomatic and Asymptomatic) Atrial Arrhythmia (Atrial Fibrillation [AF], Atrial Tachycardia [AT], or Atrial Flutter [AFL]) Episodes From Day 91 to Day 365 Post Index Procedure
Kaplan-Meier estimates of the success rate of freedom from primary effectiveness failure, that is, documented (symptomatic and asymptomatic) atrial arrhythmia (AF, AT, or AFL) recurrence based on electrocardiographic data (>=30 seconds on arrhythmia monitoring device) from Day 91 to Day 365 post index procedure, was reported. Acute procedural failure defined as failure to confirm entrance block in all PVs except those that are silent and/or cannot be cannulated post-procedure, use of a non-study catheter for PV isolation, or failure to have PFA delivery with the study catheter due to IRE system malfunctions, was also considered a long-term effectiveness failure.
Measured: From Day 91 up to Day 365 post index procedure on Day 0
Secondary outcomes (3)
Number of Participants Who Achieved Acute Procedural Success
Number of participants who achieved acute procedural success were reported. Acute procedural success was defined as confirmation of entrance block in all clinically relevant targeted pulmonary veins (PVs) after adenosine/ isoproterenol challenge.
Measured: Day 0 (Day of procedure)
Kaplan-Meier Estimates of the Success Rate of Freedom From Documented Symptomatic Re-Occurrence of Atrial Arrhythmia (Atrial Fibrillation [AF], Atrial Tachycardia [AT], or Atrial Flutter [AFL]) Episodes From Day 91 to Day 365 Post Index Procedure
Kaplan-Meier estimates of the success rate of freedom from primary effectiveness failure, that is, documented symptomatic re-occurrence of atrial arrhythmia (AF, AT, or AFL) episodes based on electrocardiographic data (>=30 seconds on arrhythmia monitoring device) from Day 91 to Day 365 post index procedure, was reported. Acute procedural failure defined as failure to confirm entrance block in all PVs except those that are silent and/or cannot be cannulated post-procedure, use of a non-study catheter for PV isolation, or failure to have PFA delivery with the study catheter due to IRE system malfunctions, was also considered a long-term effectiveness failure.
Measured: From Day 91 up to Day 365 post index procedure on Day 0
Change From Baseline in Atrial Fibrillation Effect on Quality of Life (AFEQT) Total Score
Change from baseline in AFEQT total score was reported. The AFEQT questionnaire is an atrial fibrillation-specific health-related quality of life (HRQoL) questionnaire designed to assess the impact of atrial fibrillation on participants' HRQoL. The questionnaire includes 20 questions on a 7-point Likert scale. Questions 1-18 evaluate HRQoL and questions 19-20 relate to participants' satisfaction with treatment. Overall or subscale scores range from 0 to 100, where 0 corresponds to complete disability (or responding "extremely" limited, difficult or bothersome to all questions answered), while a score of 100 corresponds to no disability (or responding "not at all" limited, difficult or bothersome to all questions answered). Therefore, a positive change in score corresponds to improvement in QoL. Total score was calculated using AFEQT formula: 100 -([sum of severity for all questions answered - number of questions answered]*100 / total number questions answered*6).
Measured: Baseline, Months 3, 6, and 12
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted24 Aug 2020
- Study start23 Aug 2020
- Primary completion9 May 2023
- Study completion9 May 2023
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for Atrial FibrillationStudies of the same condition, open and under way.
- More trials run by Biosense Webster, Inc.The sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- 272 participants (actual)
Sponsor and investigators
- Lead sponsor
- Biosense Webster, Inc.
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04524364
- Sponsor's protocol ID
- BWI_2019_08
- Other IDs
- BWI_2019_08
- Acronym
- inspIRE
- Status last verified
- May 2025
- First submitted
- 18 Aug 2020
- Last updated
- 25 May 2025
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- Yes
- Individual data sharing
- Yes: Johnson \& Johnson Medical Device Companies have an agreement with the Yale Open Data Access (YODA) Project to serve as the independent review panel for evaluation of requests for clinical study reports and participant level data from investigators and physicians for scientific research that will advance medical knowledge and public health. Requests for access to the study data can be submitted through the YODA Project site at http://yoda.yale.edu.
Publications
De Potter T, Grimaldi M, Duytschaever M, Anic A, Vijgen J, Neuzil P, Van Herendael H, Verma A, Skanes A, Scherr D, Purerfellner H, Rackauskas G, Jais P, Reddy VY; inspIRE Trial Investigators. Predictors of Success for Pulmonary Vein Isolation With Pulsed-field Ablation Using a Variable-loop Catheter With 3D Mapping Integration: Complete 12-month Outcomes From inspIRE. Circ Arrhythm Electrophysiol. 2024 May;17(5):e012667. doi: 10.1161/CIRCEP.123.012667. Epub 2024 Apr 24.
PubMed 38655693Duytschaever M, De Potter T, Grimaldi M, Anic A, Vijgen J, Neuzil P, Van Herendael H, Verma A, Skanes A, Scherr D, Purerfellner H, Rackauskas G, Jais P, Reddy VY; inspIRE Trial Investigators. Paroxysmal Atrial Fibrillation Ablation Using a Novel Variable-Loop Biphasic Pulsed Field Ablation Catheter Integrated With a 3-Dimensional Mapping System: 1-Year Outcomes of the Multicenter inspIRE Study. Circ Arrhythm Electrophysiol. 2023 Mar;16(3):e011780. doi: 10.1161/CIRCEP.122.011780. Epub 2023 Feb 3.
PubMed 36735937
Study at a glance
From the registry record, last updated by the sponsor on 25 May 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Pulsed Field Ablation (PFA) System for the Treatment of Paroxysmal Atrial Fibrillation (PAF) by Irreversible Electroporation (IRE)
- ClinicalTrials.gov ID
- NCT04524364
- Acronym / sponsor ID
- inspIRE / BWI_2019_08
- Conditions
- Atrial Fibrillation
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 272 participants (actual)
- Lead sponsor
- Biosense Webster, Inc.Industry (pharma, biotech, devices)
- Study start
- 23 Aug 2020 (actual)
- Primary completion
- 9 May 2023 (actual)
- Study completion
- 9 May 2023 (actual)
- First posted
- 24 Aug 2020 (actual)
- Results
- Posted 14 May 2024
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The primary objective is to demonstrate safety and long-term effectiveness of the irreversible electroporation (IRE) system (Circular IRE Catheter and IRE Generator) when used for isolation of the atrial pulmonary veins (PVs) in treatment of participants with paroxysmal atrial fibrillation (PAF).
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Participants with Paroxysmal Atrial Fibrillation (PAF) | Other | Device: Pulsed Field Ablation (PFA) TherapyParticipants with PAF and who are candidates for catheter ablation will be enrolled. |
Who may qualify
- Ages
- 18 to 75 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- Diagnosed with Symptomatic paroxysmal atrial fibrillation (PAF)
- Selected for atrial fibrillation (AF) ablation procedure by pulmonary vein isolation (PVI)
- Failed at least one antiarrhythmic drug (AAD) (class I to IV) as evidenced by recurrent symptomatic atrial fibrillation AF, or intolerable or contraindicated to the AAD
- Willing and capable of providing consent
- Able and willing to comply with all pre-, post- and follow-up testing and requirements
Key exclusion criteria (5 listed)
- AF secondary to electrolyte imbalance, thyroid disease, or reversible or non-cardiac cause
- Previous left atrium (LA) ablation or surgery
- Participant known to require ablation outside the PV region (example. cavotricuspid isthmus [CTI] region, atrioventricular reentrant tachycardia, atrioventricular nodal reentry tachycardia, atrial tachycardia, ventricular tachycardia and Wolff-Parkinson-White)
- Previously diagnosed with persistent AF (greater than [>] 7 days in duration)
- Severe dilatation of the LA (LAD >50 millimeter (mm) antero-posterior diameter in case of transthoracic echocardiography (TTE))
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Pulsed Field Ablation (PFA) TherapyParticipants will undergo PFA therapy with a compatible ablation catheter when used with Multi-Channel irreversible electroporation (IRE) Generator (deliver trains of high-voltage bipolar pulses of short duration on separate channels to a multi-electrode ablation catheter) and Circular IRE Catheter (indicated for use in catheter-based cardiac electrophysiological mapping (stimulating and recording) and, when used with an IRE Generator, for cardiac ablation). | Device | Participants with Paroxysmal Atrial Fibrillation (PAF) |
Primary outcome
Number of Participants With Primary Adverse Events (PAEs)
Time frame: Within 7 days post-procedure on Day 0
An adverse event (AE) is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. The primary safety endpoint was the incidence of PAEs (within 7 days of the initial mapping and ablation procedure). PAEs included the following AEs: Atrio-esophageal fistula, cardiac tamponade/perforation, device or procedure related death, major vascular access complication/bleeding, myocardial infarction, pericarditis, phrenic nerve paralysis (permanent), pulmonary vein stenosis, stroke/cerebrovascular accident (CVA), thromboembolism, and transient ischemic attack (TIA).
Kaplan-Meier Estimates of the Success Rate of Freedom From Documented (Symptomatic and Asymptomatic) Atrial Arrhythmia (Atrial Fibrillation [AF], Atrial Tachycardia [AT], or Atrial Flutter [AFL]) Episodes From Day 91 to Day 365 Post Index Procedure
Time frame: From Day 91 up to Day 365 post index procedure on Day 0
Kaplan-Meier estimates of the success rate of freedom from primary effectiveness failure, that is, documented (symptomatic and asymptomatic) atrial arrhythmia (AF, AT, or AFL) recurrence based on electrocardiographic data (>=30 seconds on arrhythmia monitoring device) from Day 91 to Day 365 post index procedure, was reported. Acute procedural failure defined as failure to confirm entrance block in all PVs except those that are silent and/or cannot be cannulated post-procedure, use of a non-study catheter for PV isolation, or failure to have PFA delivery with the study catheter due to IRE system malfunctions, was also considered a long-term effectiveness failure.
3 secondary outcomes
Number of Participants Who Achieved Acute Procedural Success
Time frame: Day 0 (Day of procedure)
Kaplan-Meier Estimates of the Success Rate of Freedom From Documented Symptomatic Re-Occurrence of Atrial Arrhythmia (Atrial Fibrillation [AF], Atrial Tachycardia [AT], or Atrial Flutter [AFL]) Episodes From Day 91 to Day 365 Post Index Procedure
Time frame: From Day 91 up to Day 365 post index procedure on Day 0
Change From Baseline in Atrial Fibrillation Effect on Quality of Life (AFEQT) Total Score
Time frame: Baseline, Months 3, 6, and 12
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 25 May 2025.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Derived from this study: PubMed 38655693De Potter T, Grimaldi M, Duytschaever M, Anic A, Vijgen J, Neuzil P, Van Herendael H, Verma A, Skanes A, Scherr D, Purerfellner H, Rackauskas G, Jais P, Reddy VY; inspIRE Trial Investigators. Predictors of Success for Pulmonary Vein Isolation With Pulsed-field Ablation Using a Variable-loop Catheter With 3D Mapping Integration: Complete 12-month Outcomes From inspIRE. Circ Arrhythm Electrophysiol. 2024 May;17(5):e012667. doi: 10.1161/CIRCEP.123.012667. Epub 2024 Apr 24.
- Derived from this study: PubMed 36735937Duytschaever M, De Potter T, Grimaldi M, Anic A, Vijgen J, Neuzil P, Van Herendael H, Verma A, Skanes A, Scherr D, Purerfellner H, Rackauskas G, Jais P, Reddy VY; inspIRE Trial Investigators. Paroxysmal Atrial Fibrillation Ablation Using a Novel Variable-Loop Biphasic Pulsed Field Ablation Catheter Integrated With a 3-Dimensional Mapping System: 1-Year Outcomes of the Multicenter inspIRE Study. Circ Arrhythm Electrophysiol. 2023 Mar;16(3):e011780. doi: 10.1161/CIRCEP.122.011780. Epub 2023 Feb 3.
- Individual participant dataSharing planned: Yes. Johnson \& Johnson Medical Device Companies have an agreement with the Yale Open Data Access (YODA) Project to serve as the independent review panel for evaluation of requests for clinical study reports and participant level data from investigators and physicians for scientific research that will advance medical knowledge and public health. Requests for access to the study data can be submitted through the YODA Project site at http://yoda.yale.edu.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
13 sites in 8 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Pulsed Field Ablation (PFA) Therapy in people with Atrial Fibrillation, run by Biosense Webster, Inc. at 13 sites in 8 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 5 inclusion and 5 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 25 May 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 13 sites in Belgium, Austria, Canada, Croatia, Czechia and 3 more countries. 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 14 May 2024). 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?
Number of Participants With Primary Adverse Events (PAEs) (time frame: Within 7 days post-procedure on Day 0). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT04524364, which also lists 2 linked publications.
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 25 May 2025.