NCT03775512

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

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
283

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Jan 2019

Typical duration for not_applicable

Geographic Reach
1 country

22 active sites

Status
completed

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

Completed
21 days until next milestone

First Posted

Study publicly available on registry

December 14, 2018

Completed
2 months until next milestone

Study Start

First participant enrolled

January 30, 2019

Completed
3.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 17, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 17, 2022

Completed
1.1 years until next milestone

Results Posted

Study results publicly available

March 16, 2023

Completed
Last Updated

March 16, 2023

Status Verified

February 1, 2023

Enrollment Period

3.1 years

First QC Date

November 23, 2018

Results QC Date

February 17, 2023

Last Update Submit

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

EXPERIMENTAL

Subjects will be ablated with the QDOT Micro Catheter for Pulmonary Vein Isolation with nMARQ RF Generator

Device: RF Ablation with QDOT Micro

Second Arm (variable flow)

EXPERIMENTAL

subjects will be treated with QDOT Micro catheter with variable flow nMARQ RF generator

Device: RF Ablation with QDOT Micro

Interventions

Subjects will be ablated using QDOT Micro catheter

Main ArmSecond Arm (variable flow)

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

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

Location

University of Alabama

Birmingham, Alabama, 35294, United States

Location

JFK Medical Center

Atlantis, Florida, 33462, United States

Location

Ascension St. Vincent's

Jacksonville, Florida, 32204, United States

Location

Florida Hospital

Orlando, Florida, 32803, United States

Location

Baptist Health

Lexington, Kentucky, 40503, United States

Location

Massachusetts General Hospital

Boston, Massachusetts, 02114, United States

Location

Abbott Northwestern Hospital Clinic

Minneapolis, Minnesota, 55407, United States

Location

NYU Langone

New York, New York, 10016, United States

Location

Mt. Sinai School of Medicine

New York, New York, 10029, United States

Location

New York Presbyterian Hospital

New York, New York, 10065, United States

Location

Montefiore Medical Center - Albert Einstein

The Bronx, New York, 10467, United States

Location

Duke University Medical Center

Durham, North Carolina, 27705, United States

Location

WakeMed Heart & Vascular

Raleigh, North Carolina, 27610, United States

Location

Cleveland Clinic

Cleveland, Ohio, 44195, United States

Location

Ohio State University

Columbus, Ohio, 43210, United States

Location

University of Penn Health System

Philadelphia, Pennsylvania, 19104, United States

Location

Texas Heart Health and Vascular

Arlington, Texas, 76012, United States

Location

St. David's - TCAR

Austin, Texas, 78758, United States

Location

Houston Methodist Hospital

Houston, Texas, 77030, United States

Location

Intermountain Medical Center

Murray, Utah, 84107, United States

Location

Virginia Commonwealth University

Richmond, Virginia, 23298, United States

Location

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.

MeSH Terms

Conditions

Atrial Fibrillation

Condition Hierarchy (Ancestors)

Arrhythmias, CardiacHeart DiseasesCardiovascular DiseasesPathologic ProcessesPathological Conditions, Signs and Symptoms

Results Point of Contact

Title
Franchise Medical Manager
Organization
Biosense Webster, Inc.

Study Officials

  • 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

    PRINCIPAL INVESTIGATOR

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

Locations