Trial Review

Technical difficulties have been reported by some users of the search function and is being investigated by technical staff. Thank you for your patience and apologies for any inconvenience caused.

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 endorsed by the ANZCTR. Before participating in a study, talk to your health care provider and refer to this information for consumers
Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/ct2/show/NCT06272981




Registration number
NCT06272981
Ethics application status
Date submitted
15/02/2024
Date registered
22/02/2024
Date last updated
22/05/2024

Titles & IDs
Public title
A Study of the THERMOCOOL SMARTTOUCH Surround Flow (SF) Catheter With the TRUPULSE Generator for Treatment of Drug Refractory Symptomatic PAFOUS
Scientific title
Safety and Effectiveness Evaluation of the THERMOCOOL SMARTTOUCH™ SF Catheter With the TRUPULSE™ Generator for Treatment of Drug Refractory Symptomatic Paroxysmal Atrial Fibrillation (PAF)
Secondary ID [1] 0 0
BWI202308
Universal Trial Number (UTN)
Trial acronym
PulseSmart
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Atrial Fibrillation 0 0
Condition category
Condition code
Cardiovascular 0 0 0 0
Other cardiovascular diseases

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Treatment: Devices - Pulsed Field (PF) /Radiofrequency (RF) Catheter ablation

Experimental: Pulsed Field (PF)/Radiofrequency (RF) Ablation System - Participants with drug refractory symptomatic PAF who are candidates for atrial fibrillation ablation uses PF and RF energy to produce targeted intracardiac lesions for the treatment of atrial fibrillation.


Treatment: Devices: Pulsed Field (PF) /Radiofrequency (RF) Catheter ablation
THERMOCOOL STSF catheter will be used in conjunction with TRUPULSE Generator to give PF ablation or RF ablation.
Intervention code [1] 0 0
Treatment: Devices
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
Number of Participants with Primary Adverse Events (PAEs)
Timepoint [1] 0 0
Within one week (7 days) post-procedure
Primary outcome [2] 0 0
Rate of Freedom from Documented (Symptomatic and Asymptomatic) Atrial Arrhythmia (Atrial Fibrillation (AF), Atrial Tachycardia (AT) or Atrial Flutter (AFL) of Unknown Origin) within 91-365 Days Post Index Procedure
Timepoint [2] 0 0
Within Day 91 to Day 365 post-procedure
Secondary outcome [1] 0 0
Change from Baseline in Atrial Fibrillation Effect on Quality of Life (AFEQT) Total Score
Timepoint [1] 0 0
Baseline, Month 12

Eligibility
Key inclusion criteria
:

- Diagnosed with Symptomatic PAF (Physician's note indicating recurrent self-terminating
AF). At least one (1) electrocardiographically documented AF episode within twelve
(12) months prior to enrollment. Electrocardiographic documentation may include, but
is not limited to, electrocardiogram (ECG), Holter monitor, or other
electrocardiographical devices accepted by investigators

- Failed at least one (1) Class I or Class III Antiarrhythmic Drug (AAD) as evidenced by
recurrent symptomatic AF or has intolerable side effects or is contraindicated to the
Class I or Class III AAD

- Able and willing to comply with all pre-procedure, post-procedure, and follow-up
testing and visit requirements

- Willing and capable of providing consent
Minimum age
18 Years
Maximum age
80 Years
Sex
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
- AF secondary to electrolyte imbalance, thyroid disease, or reversible or non-cardiac
cause (e.g., untreated documented obstructive sleep apnea and acute alcohol toxicity)

- Previous LA ablation or surgery

- Patients known to require ablation outside the PV region (atrioventricular reentrant
tachycardia, atrioventricular nodal reentry tachycardia, atrial tachycardia, atrial
flutter of unknown origin, ventricular tachycardia and Wolff-Parkinson-White)

- Previously diagnosed with persistent AF (> 7 days in duration)

- Severe dilatation of the LA (documented LAD >50mm antero-posterior diameter on imaging
within 6 months prior to enrollment

- Documented left atrium (LA) thrombus within 48 hours prior to the index procedure by
Transesophageal Echocardiography (TEE), or by Intracardiac Echocardiography (ICE)
prior to transeptal puncture during procedure

- Documented severely compromised LVEF (LVEF <40%) by imaging within 6 months prior to
enrollment

- Uncontrolled heart failure or New York Heart Association (NYHA) Class III or IV

- History of blood clotting, bleeding abnormalities or contraindication to
anticoagulation (heparin, warfarin, or dabigatran)

- History of a documented thromboembolic event (including TIA) within the past 12
months, or history of a documented left atrial appendage (LAA) thrombus

- History of a documented symptomatic lacunar infarction within the past 12 months

- Previous PCI/MI within the past 2 months

- Coronary Artery Bypass Grafting (CABG) surgery within past 6 months

- Valvular surgery, cardiac surgery (e.g., ventriculotomy, atriotomy) or valvular
cardiac (surgical or percutaneous) procedure

- Unstable angina pectoris within the past 6 months

- Anticipated cardiac transplantation, cardiac surgery or other major surgery within the
next 12 months

- 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 severe chronic symptoms

- Known significant PV anomaly that in the opinion of the investigator would preclude
enrollment in this study

- Has known pulmonary vein stenosis

- Pre-existing hemi diaphragmatic paralysis

- Acute illness, active systemic infection or sepsis

- Presence of intracardiac thrombus, myxoma, tumor, interatrial baffle or patch or other
abnormality that precludes catheter introduction or manipulation

- Severe mitral regurgitation (Regurgitant volume 60 mL/beat, Regurgitant fraction 50%,
and/or Effective regurgitant orifice area 0.40cm^2)

- Presence of implanted pacemaker, Implantable Cardioverter-Defibrillator (ICD),
recently implanted (within 6 months) LAAO device or other implanted metal cardiac
device within the cardiac space that may interfere with the energy field created
during the ablation procedure.

- Presence of a condition that precludes vascular access (such as IVC filter)

- Significant congenital anomaly or a medical problem that in the opinion of the
investigator would preclude enrollment in this study

- Categorized as vulnerable population and requires special treatment with respect to
safeguards of well-being

- Current enrollment in an investigational study evaluating another device or drug

- Women who are pregnant (as evidenced by pregnancy test if pre-menopausal), lactating,
or who are of childbearing age and plan on becoming pregnant during the course of the
clinical investigation

- Life expectancy less than 12 months

- History of massive hemorrhage within the past 6 months

- Presenting contra-indications for the devices

Study design
Purpose of the study
Treatment
Allocation to intervention
N/A
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Open (masking not used)
Who is / are masked / blinded?



Intervention assignment
Single group
Other design features
Phase
Not Applicable
Type of endpoint/s
Statistical methods / analysis

Recruitment
Recruitment status
Recruiting
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
28/02/2024
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
29/08/2025
Actual
Sample size
Target
135
Accrual to date
Final
Recruitment in Australia
Recruitment state(s)
Recruitment hospital [1] 0 0
Royal Prince Alfred Hospital - Camperdown
Recruitment hospital [2] 0 0
Canberra Heart Rhythm - Garran
Recruitment hospital [3] 0 0
John Hunter Hospital - New Lambton Heights
Recruitment hospital [4] 0 0
Westmead Hospital - Westmead
Recruitment postcode(s) [1] 0 0
2050 - Camperdown
Recruitment postcode(s) [2] 0 0
2605 - Garran
Recruitment postcode(s) [3] 0 0
2305 - New Lambton Heights
Recruitment postcode(s) [4] 0 0
2145 - Westmead
Recruitment outside Australia
Country [1] 0 0
Canada
State/province [1] 0 0
Ontario
Country [2] 0 0
Canada
State/province [2] 0 0
Quebec

Funding & Sponsors
Primary sponsor type
Commercial sector/Industry
Name
Biosense Webster, Inc.
Address
Country

Ethics approval
Ethics application status

Summary
Brief summary
The purpose of this study is to demonstrate safety and effectiveness of the Biosense Webster
(BWI) ablation system (THERMOCOOL SMARTTOUCH surround flow [STSF] catheter and TRUPULSE
generator) when used for isolation of the atrial pulmonary veins (PVs) in treatment of
participants with paroxysmal atrial fibrillation (PAF), an irregular heart rate that causing
abnormal blood flow.
Trial website
https://clinicaltrials.gov/ct2/show/NCT06272981
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 0 0
Biosense Webster, Inc. Clinical Trial
Address 0 0
Biosense Webster, Inc.
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Study Contact
Address 0 0
Country 0 0
Phone 0 0
+1 949 2856673
Fax 0 0
Email 0 0
BNajimip@ITS.JNJ.com
Contact person for scientific queries



Summary Results

For IPD and results data, please see https://clinicaltrials.gov/ct2/show/NCT06272981