SPHERE Per-AF Post-Approval Study

NCT ID: NCT06858306

Last Updated: 2026-01-07

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

200 participants

Study Classification

OBSERVATIONAL

Study Start Date

2025-09-25

Study Completion Date

2030-10-31

Brief Summary

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SPHERE Per-AF Post-Approval Study is a prospective, multi-center, non-randomized, observational trial. Subjects will be treated with the Sphere-9™ Catheter and Affera™ Ablation System and followed through 36 months.

Detailed Description

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The purpose of the study is to evaluate the long-term effectiveness and safety of the Sphere-9™ Catheter and Affera™ Ablation System in a post-approval setting for the treatment of drug refractory, recurrent, symptomatic, persistent AF (episode duration less than one year).

Conditions

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Persistent Atrial Fibrillation

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Persistent Atrial Fibrillation

Sphere-9™ Catheter and Affera™ Ablation System

Intervention Type DEVICE

De novo pulmonary vein isolation procedure using commercially available Sphere-9™ Catheter and Affera™ Ablation System

Interventions

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Sphere-9™ Catheter and Affera™ Ablation System

De novo pulmonary vein isolation procedure using commercially available Sphere-9™ Catheter and Affera™ Ablation System

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

1. A diagnosis of recurrent symptomatic persistent AF (continuous AF sustained longer than 7 days but less than 12 months)
2. Refractory (i.e. not effective, not tolerated, or not desired) to at least one Class I or III antiarrhythmic drug (AAD)
3. Patient is ≥ 18 years of age
4. Planned de novo pulmonary vein isolation procedure using commercially available Sphere-9™ Catheter and Affera Ablation System
5. Patient is willing and able to comply with study requirements and give informed consent

Exclusion Criteria

1. Long-standing persistent AF (continuous AF sustained \>12 months)
2. Prior left atrial catheter or surgical ablation
3. Life expectancy \<36 months
4. Presence of a permanent pacemaker, biventricular pacemaker, loop recorder/insertable cardiac monitor (ICM), or any type of implantable cardiac defibrillator (with or without biventricular pacing function)
5. Current or anticipated participation in any other clinical trial of a drug, device or biologic during the duration of this study not pre-approved by Medtronic
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Medtronic Cardiac Ablation Solutions

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Mayo Clinic

Rochester, Minnesota, United States

Site Status RECRUITING

Montefiore Medical Center

New York, New York, United States

Site Status RECRUITING

OhioHealth

Columbus, Ohio, United States

Site Status RECRUITING

Doylestown Health Cardiology

Doylestown, Pennsylvania, United States

Site Status RECRUITING

Allegheny General Hospital

Pittsburgh, Pennsylvania, United States

Site Status RECRUITING

Texas Health Resources

Fort Worth, Texas, United States

Site Status RECRUITING

Houston Methodist Hospital

Houston, Texas, United States

Site Status RECRUITING

University of Virginia Medical Center

Charlottesville, Virginia, United States

Site Status RECRUITING

Centra Medical Group Stroobants Cardiovascular Center

Lynchburg, Virginia, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Libby Bergmann

Role: CONTACT

Facility Contacts

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Brooke Stanga, Research Coordinator

Role: primary

507-422-6692

Jose Matias, Research Coordinator

Role: primary

649-599-1506

Sanchita Krishna, Research Coordinator

Role: primary

(614) 788-4691

Shannon McDonald, Research Coordinator

Role: primary

215-345-2227

Olivia Moore, Research Coordinator

Role: primary

(412) 359-5295

Tara Craig, Research Coordinator

Role: primary

(817) 250-4960

Chinwe Ngumezi, Research Coordinator

Role: primary

(713) 441-6548

Cathy Roy, Research Coordinator

Role: primary

(434) 982-6401

Michelle Carter, Research Coordinator

Role: primary

434-200-5252

Other Identifiers

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SPHERE Per-AF PAS

Identifier Type: -

Identifier Source: org_study_id

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