Clinical Study for Safety and Acute Performance Evaluation of the THERMOCOOL SMARTTOUCH® SF-5D System Used With Fast Ablation Mode in Treatment of Patients With Paroxysmal Atrial Fibrillation.

NCT ID: NCT03459196

Last Updated: 2025-06-29

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

54 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-04-02

Study Completion Date

2018-10-08

Brief Summary

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The QDOT-FAST study is a prospective, multi-center, non-randomized, interventional clinical study.

Detailed Description

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The purpose of this study is to evaluate safety and acute performance of the THERMOCOOL SMARTTOUCH® SF-5D catheter used in combination with the nMARQ™ Multi-Channel RF Generator with TGA mode in the treatment of Paroxysmal Atrial Fibrillation (PAF) during standard electrophysiology mapping and RF ablation procedures.

The QDOT-FAST study is a prospective, multi-center, non-randomized, interventional clinical study.

Conditions

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Paroxysmal Atrial Fibrillation

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Treatment Group

A novel radiofrequency ablation catheter combining microelectrodes, thermocouples, porous tip irrigation and contact force sensing nMARQ Multi-Channel RF Generator with Software including TGA mode (Temperature Guided Ablation).

Group Type EXPERIMENTAL

THERMOCOOL SMARTTOUCH SF-5D Catheter

Intervention Type DEVICE

radiofrequence ablation with THERMOCOOL SMARTTOUCH® SF-5D catheter used in combination with the nMARQ™ Multi-Channel RF Generator with TGA mode

Interventions

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THERMOCOOL SMARTTOUCH SF-5D Catheter

radiofrequence ablation with THERMOCOOL SMARTTOUCH® SF-5D catheter used in combination with the nMARQ™ Multi-Channel RF Generator with TGA mode

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

1. Age 18 or older.
2. Signed the Patient Informed Consent Form (ICF).
3. Diagnosed with symptomatic PAF
4. Selected for catheter ablation through pulmonary vein isolation.
5. Able and willing to comply with all pre-, post-, and follow-up testing and requirements (e.g. patient not confined by a court ruling).

Exclusion Criteria

1. Atrial fibrillation secondary to electrolyte imbalance, thyroid disease, or reversible or non-cardiac cause.
2. Previous surgical or catheter ablation for atrial fibrillation.
3. Previously diagnosed with persistent, longstanding AF and/or continuous AF \>7 days, or \>48 hrs. terminated by cardioversion.
4. Documented Left Atrial thrombus on baseline/pre-procedure imaging.
5. Any carotid stenting or endarterectomy.
6. Left atrial (LA) size \>50mm.
7. Left Ventricular ejection fraction (LVEF) \<40%.
8. Uncontrolled heart failure or New York Heart Association (NYHA) function class III or IV.
9. History of blood clotting or bleeding abnormalities
10. Contraindication to anticoagulation
11. History of a documented thromboembolic event (including transient ischemic attack (TIA)) within the past 12 months.
12. Previous percutaneous coronary intervention (PCI) or myocardial Infarction (MI) within the past 2 months.
13. Coronary artery bypass grafting (CABG) in conjunction with valvular surgery, cardiac surgery (e.g. ventriculotomy, atriotomy) or valvular cardiac (surgical or percutaneous) procedure.
14. Rheumatic Heart Disease
15. Awaiting cardiac transplantation or other cardiac surgery within the next 12 months.
16. Unstable angina.
17. Significant pulmonary disease (e.g. restrictive pulmonary disease, constrictive or chronic obstructive pulmonary disease) or any other diseaseor malfunction of the lungs or respiratory system that produces chronic symptoms.
18. Acute illness, active systemic infection, or sepsis.
19. Presence of atrial myxoma, interatrial baffle or patch
20. Presence of intramural thrombus, tumor or other abnormality that precludes catheter introduction or manipulation.
21. Presence of a condition that precludes vascular access.
22. Presence of implanted pacemaker or implantable cardioverter-defibrillator (ICD).
23. Presence of IVC filter
24. Significant congenital anomaly or a medical problem that in the opinion of the investigator would preclude enrollment in this trial.
25. Currently enrolled in an investigational study evaluating another device, biologic, or drug.
26. Women who are pregnant (as evidenced by pregnancy test if pre-menopausal), lactating, or who are of child bearing age and plan on becoming pregnant during the course of the clinical investigation.
27. Life expectancy or other disease processes likely to limit survival to less than 12 months.
28. Presenting contra-indication for the devices used in the study, as indicated in the respective instructions for use.
29. Categorized as vulnerable population and requires special treatment with respect to safeguards of well-being
30. Contraindication to use of contrast agents for MRI such as advanced renal disease, etc. (at PI discretion)
31. Presence of iron-containing metal fragments in the body
32. Unresolved pre-existing neurological deficit.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Biosense Webster, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Elisabethinen Hospital

Linz, , Austria

Site Status

OLV Aalst

Aalst, , Belgium

Site Status

AZ Sint-Jan

Bruges, , Belgium

Site Status

Jessa Ziekenhuis

Hasselt, , Belgium

Site Status

Ceské Budejovice Hospital

České Budějovice, , Czechia

Site Status

Na Homolce

Prague, , Czechia

Site Status

Ospedale F Miulli

Bari, , Italy

Site Status

Countries

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Austria Belgium Czechia Italy

References

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Reddy VY, Grimaldi M, De Potter T, Vijgen JM, Bulava A, Duytschaever MF, Martinek M, Natale A, Knecht S, Neuzil P, Purerfellner H. Pulmonary Vein Isolation With Very High Power, Short Duration, Temperature-Controlled Lesions: The QDOT-FAST Trial. JACC Clin Electrophysiol. 2019 Jul;5(7):778-786. doi: 10.1016/j.jacep.2019.04.009. Epub 2019 May 8.

Reference Type DERIVED
PMID: 31320006 (View on PubMed)

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

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BWI_2017_02

Identifier Type: -

Identifier Source: org_study_id

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