Evaluation of QDOT MICRO™ Catheter for Pulmonary Vein Isolation in Subjects With Paroxysmal Atrial Fibrillation
Q-FFICIENCY
1 other identifier
interventional
283
1 country
22
Brief Summary
Prospective, non-randomized, pre-market clinical evaluation of the QDOT MICRO™ Catheter to demonstrate the safety and effectiveness when compared to an historical control performance goal.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Jan 2019
Typical duration for not_applicable
22 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
November 23, 2018
CompletedFirst Posted
Study publicly available on registry
December 14, 2018
CompletedStudy Start
First participant enrolled
January 30, 2019
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 17, 2022
CompletedStudy Completion
Last participant's last visit for all outcomes
February 17, 2022
CompletedResults Posted
Study results publicly available
March 16, 2023
CompletedMarch 16, 2023
February 1, 2023
3.1 years
November 23, 2018
February 17, 2023
February 17, 2023
Conditions
Outcome Measures
Primary Outcomes (3)
Percentage of Participants With Early Onset Primary Adverse Events (PAEs): Atrio-esophageal Fistula and Pulmonary Vein (PV) Stenosis
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. A Primary AEs is an event which occurred within 90 days following initial and repeated ablation procedure using the QDOT MICRO. Primary AEs included: atrio-esophageal fistula and pulmonary vein stenosis.
Up to 90 days (post initial and repeated ablation procedure)
Percentage of Participants With Early Onset PAEs: Death, Myocardial Infraction, Cardiac Tamponade/Perforation, Thromboembolism, Stroke/Cardiovascular Accident , TIA, PNP, Heart Block, Pulmonary Edema, Vagal Nerve Injury, Pericarditis, and MVAC/Bleeding
A Primary AEs is an event which occurred within the first week (7 days of the initial and repeated ablation procedure) which included death, myocardial infraction (MI), cardiac tamponade (CT)/perforation, thromboembolism, stroke/cardiovascular accident (CVA), transient ischemic attack (TIA), phrenic nerve paralysis (PNP), heart block, pulmonary edema, vagal nerve injury, pericarditis, and major vascular access complication/bleeding (MVAC).
Up to 7 days (post initial and repeated ablation procedure)
Percentage of Participants With Freedom From Documented Atrial Fibrillation (AF), Atrial Tachycardia (AT), or Atrial Flutter (AFL) Episodes or Other Failure Modes
Percentage of participants with freedom from documented AF, AT, or AFL episodes or following failure modes: a) Acute procedural: Failure to confirm entrance block in all pulmonary veins post-procedure and use of a non-study catheter to treat left atrial ablation targets and Cavo-tricuspid isthmus; b) Repeat ablation: \>2 repeat ablation procedures with the study catheter during the 3-Month blanking period (Day 0-90) after the index ablation procedure, use of a non-study catheter to treat study arrhythmia ablation targets during the blanking period, and any repeat ablation procedure during the Evaluation Period; c) Antiarrhythmic drug: taking a new AAD for AF or a previously failed AAD at a greater than the highest ineffective historical dose for AF during the evaluation period, were reported.
Day 91 to Day 365
Secondary Outcomes (13)
Number of Participants With Unanticipated Adverse Device Effects (UADEs)
Up to 20 months
Number of Participants With Serious Non-Primary Adverse Events (SAEs) Within 7 Days (Early Onset), 8-30 Days (Peri-procedural) and Greater Than or Equal to (>=) 31 Days (Late Onset) of Initial Ablation Procedure
Within 7 days (early onset), 8-30 days (peri-procedural) and >=31 days (late onset) of initial ablation procedure (up to 20 months)
Number of Participants With Bleeding Complication by International Society on Thrombosis and Haemostasis (ISTH) Class and Timing of Onset
Within 7 days (early onset), 8-30 days (peri-procedural) and >=31 days (late onset) of initial ablation procedure (up to 20 months)
Percentage of Participants With Electrical Isolation of Pulmonary Veins (PVs) (Entrance Block) at the End of the Procedure
End of the Procedure (up to 20 months)
Percentage of Participants With Electrical Isolation of PV After First Encirclement With Acute Reconnection
Up to 20 months
- +8 more secondary outcomes
Study Arms (2)
Main Arm
EXPERIMENTALSubjects will be ablated with the QDOT Micro Catheter for Pulmonary Vein Isolation with nMARQ RF Generator
Second Arm (variable flow)
EXPERIMENTALsubjects will be treated with QDOT Micro catheter with variable flow nMARQ RF generator
Interventions
Subjects will be ablated using QDOT Micro catheter
Eligibility Criteria
You may qualify if:
- Symptomatic paroxysmal AF with one electrocardiographically documented AF episode within 6 months prior to enrollment and a a physician's note indicating recurrent self-terminating AF within 7 days . Documentation may include electrocardiogram (ECG); Transtelephonic monitoring (TTM), Holter monitor or telemetry strip.
- Failed at least one Class I or Class III antiarrhythmic drug as evidenced by recurrent symptomatic AF, contraindicated, or intolerable to the AAD.
- Age 18 years or older.
You may not qualify if:
- Previous surgical or catheter ablation for atrial fibrillation.
- AF secondary to electrolyte imbalance, thyroid disease, or reversible or non-cardiac cause.
- Previously diagnosed with persistent or long-standing persistent AF and/or Continuous AF \> 7 days.
- Valve repair or replacement or presence of a prosthetic valve.
- CABG surgery within the past 6 months (180 days).
- Any carotid stenting or endarterectomy within the past 6 months.
- Coronary artery bypass grafting, cardiac surgery, or valvular cardiac surgical procedure within the past 6 months.
- Documented left atrium (LA) thrombus within 1 day prior to the index procedure.
- Documented LA size \> 50 mm.
- Documented LVEF \< 40%.
- Contraindication to anticoagulation (e.g., heparin).
- MI/PCI within the past 2 months.
- Documented thromboembolic event (including transient ischemic attack) within the past 12 months.
- Uncontrolled heart failure or New York Heart Association (NYHA) function class III or IV.
- Awaiting cardiac transplantation or other cardiac surgery within the next 12 months.
- +2 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (22)
Grandview Medical Center
Birmingham, Alabama, 35243, United States
University of Alabama
Birmingham, Alabama, 35294, United States
JFK Medical Center
Atlantis, Florida, 33462, United States
Ascension St. Vincent's
Jacksonville, Florida, 32204, United States
Florida Hospital
Orlando, Florida, 32803, United States
Baptist Health
Lexington, Kentucky, 40503, United States
Massachusetts General Hospital
Boston, Massachusetts, 02114, United States
Abbott Northwestern Hospital Clinic
Minneapolis, Minnesota, 55407, United States
NYU Langone
New York, New York, 10016, United States
Mt. Sinai School of Medicine
New York, New York, 10029, United States
New York Presbyterian Hospital
New York, New York, 10065, United States
Montefiore Medical Center - Albert Einstein
The Bronx, New York, 10467, United States
Duke University Medical Center
Durham, North Carolina, 27705, United States
WakeMed Heart & Vascular
Raleigh, North Carolina, 27610, United States
Cleveland Clinic
Cleveland, Ohio, 44195, United States
Ohio State University
Columbus, Ohio, 43210, United States
University of Penn Health System
Philadelphia, Pennsylvania, 19104, United States
Texas Heart Health and Vascular
Arlington, Texas, 76012, United States
St. David's - TCAR
Austin, Texas, 78758, United States
Houston Methodist Hospital
Houston, Texas, 77030, United States
Intermountain Medical Center
Murray, Utah, 84107, United States
Virginia Commonwealth University
Richmond, Virginia, 23298, United States
Related Publications (1)
Osorio J, Hussein AA, Delaughter MC, Monir G, Natale A, Dukkipati S, Oza S, Daoud E, Di Biase L, Mansour M, Fishel R, Valderrabano M, Ellenbogen K; Q-FFICIENCY Trial Investigators. Very High-Power Short-Duration, Temperature-Controlled Radiofrequency Ablation in Paroxysmal Atrial Fibrillation: The Prospective Multicenter Q-FFICIENCY Trial. JACC Clin Electrophysiol. 2023 Apr;9(4):468-480. doi: 10.1016/j.jacep.2022.10.019. Epub 2023 Jan 18.
PMID: 36752484DERIVED
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Franchise Medical Manager
- Organization
- Biosense Webster, Inc.
Study Officials
- PRINCIPAL INVESTIGATOR
Emile Daoud
Ohio State University
- PRINCIPAL INVESTIGATOR
Jose Osorio
Grandview Medical Center
- PRINCIPAL INVESTIGATOR
Francis Marchlinksi
University of Pennsylvania Health System
- PRINCIPAL INVESTIGATOR
Michael Cutler
Intermountain Medical Center
- PRINCIPAL INVESTIGATOR
Andrea Natale
Texas Cardiac Arrhythmia Research Foundation
- PRINCIPAL INVESTIGATOR
Daniel Melby
Abbott Northwestern
- PRINCIPAL INVESTIGATOR
Miguel Valderabanno
The Methodist Hospital Research Institute
- PRINCIPAL INVESTIGATOR
George Monir
AdventHealth
- PRINCIPAL INVESTIGATOR
Craig Delaughter
Texas Heart Health and Vascular
- PRINCIPAL INVESTIGATOR
Christopher Liu
New York Presbyterian Hospital
- PRINCIPAL INVESTIGATOR
Saumil Oza
Ascension St. Vincent's
- PRINCIPAL INVESTIGATOR
Ayman Hussein
The Cleveland Clinic
- PRINCIPAL INVESTIGATOR
Robert Fishel
JFK Hospital
- PRINCIPAL INVESTIGATOR
Kenneth Ellenbogen
VCU
- PRINCIPAL INVESTIGATOR
Gery Tomassoni
Baptist Hospital
- PRINCIPAL INVESTIGATOR
Tristram Bahnson
Duke University
- PRINCIPAL INVESTIGATOR
Chris Ellis
VUMC
- PRINCIPAL INVESTIGATOR
Emerson Liu
Allegheny College
- PRINCIPAL INVESTIGATOR
David Wilber
Loyola University
- PRINCIPAL INVESTIGATOR
Moussa Mansour
Massachusetts General Hospital
- PRINCIPAL INVESTIGATOR
Srinivas Dukkipati
Icahn School of Medicine at Mount Sinai
- PRINCIPAL INVESTIGATOR
Hugh McElderry
University of Alabama at Birmingham
- PRINCIPAL INVESTIGATOR
Ashish Patel
Wakemed Heart and Vascular
- PRINCIPAL INVESTIGATOR
Larry Chinitz
NYU Langone Medical Center
- PRINCIPAL INVESTIGATOR
Luigi DiBiase
Montefiore
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SEQUENTIAL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
November 23, 2018
First Posted
December 14, 2018
Study Start
January 30, 2019
Primary Completion
February 17, 2022
Study Completion
February 17, 2022
Last Updated
March 16, 2023
Results First Posted
March 16, 2023
Record last verified: 2023-02