NCT07308847

Horizon 360 Protocol for the Treatment of Paroxysmal Atrial Fibrillation With the Sphere-360™ Catheter and Affera™ Mapping and Ablation System (Horizon 360)

Active, Not Recruiting
NAAges 18–80InterventionalTreatment
Medtronic Cardiac Ablation Solutions
~300 participants
Updated 2026-09-02 on ClinicalTrials.gov
What's tested:Sphere-360 Pulsed Field Ablation Catheter with the Affera Mapping and Ablation System

At a glance

Recruiting sites
0 of 24 listed sites are recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Freedom from Atrial Tachyarrhythmia Recurrence Through 12 Months Post-Ablation
Measured over Index ablation procedure through 12 months of follow up.
+1 more outcome measured
Paroxysmal AF

NCT07308847

Where you'd take part

This study runs at 24 sites. They're the same protocol — you choose where, and that choice sets who your contact draft is addressed to.

  • Arrhythmia Research Group

    Jonesboro, Arkansasno site contact published

  • Atrium Health Wake Forest Baptist Medical Center

    Winston-Salem, North Carolinano site contact published

  • Bethesda North Hospital

    Cincinnati, Ohiono site contact published

  • Cleveland Clinic Foundation

    Cleveland, Ohiono site contact published

  • Duke University Medical Center

    Durham, North Carolinano site contact published

  • Icahn School of Medicine at Mount Sinai

    New York, New Yorkno site contact published

  • Inova Fairfax Hospital

    Falls Church, Virginiano site contact published

  • Kansas City Heart Rhythm Institute (Midwest Heart and Vascular Specialist)

    Overland Park, Kansasno site contact published

Sites open and close at different times, so the status above is per site — it can differ from the study's overall status.

  • Vivek Reddy, MD · PRINCIPAL_INVESTIGATOR · Icahn School of Medicine at Mt Sinai

This trial hasn't published a contact. View it on ClinicalTrials.gov

  • Freedom from Atrial Tachyarrhythmia Recurrence Through 12 Months Post-AblationIndex ablation procedure through 12 months of follow up.

    Freedom from documented recurrence of atrial fibrillation, atrial tachycardia, or atrial flutter based on electrocardiographic data through 12 months (365 days) and excluding a 90-day blanking period. The study requires 24-hour Holter monitoring at 6 and 12 months in addition to weekly and symptomatic trans-telephonic monitoring (TTM) transmissions through 12 months, and 12-lead ECGs at all follow up visits. Atrial tachyarrhythmia observed via any of those instruments, as well as acute procedural failure, repeat ablation, cardioversion, an increase in anti-arrhythmic drugs, or use of amiodarone at any time during the study will constitute a failure.

  • Incidence of Device- and Procedure-Related Serious Adverse Events Through 6 MonthsIndex ablation procedure through 6 months of follow up.

    Primary safety events (device- and procedure-related serious adverse events, as adjudicated by the Clinical Events Committee) for the Sphere-360 Catheter and Affera Mapping and Ablation System: Within 7 days: heart block, major bleeding needing transfusion, MI, permanent phrenic nerve paralysis, pulmonary edema, severe pericarditis, significant effusion/tamponade, stroke/CVA, systemic/pulmonary embolism needing intervention, TIA, vagal nerve injury causing esophageal dysmotility/gastroparesis, vascular access complications needing intervention, AKI needing dialysis or hospitalization \>48h or prolonged \>48h, death, any device/procedure-related CV/pulmonary event causing/prolonging hospitalization \>48h (excludes recurrent AF/AT/AFL). Within 3 months: atrioesophageal/esophago-pericardial fistula, esophageal perforation (device/procedure related; excludes TEE/nasogastric tube injury). Within 6 months: pulmonary vein stenosis (≥70% diameter reduction).