Clinical trials

9

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Condition / disease
Location
Status: Not yet recruiting

Outcomes of an Optimized Workflow With PulseSelect Pulsed Field Ablation (PFA) System in Paroxysmal and Persistent Atrial Fibrillation

The NEXT PULSE study is a pre-market, prospective, multi-center, non-randomized, interventional clinical study. Adult subjects with symptomatic paroxysmal or persistent AF who provided consent will be enrolled and treated with the PulseSelect PFA System.

Participants needed: 320
Trial details
Age: 18-80Biological sex: AllType: InterventionalSponsor: Medtronic Cardiac Ablation SolutionsUpdated: Oct 9, 2026
Eligibility criteria

Adults who are ≥18 and ≤80 years of age on the day of enrollment (or older than... [+5]

Long-standing persistent AF (continuous AF that is sustained >12 months) [+38]

Status: Recruiting

Safety and Effectiveness of the Sphere-9™ Catheter and Affera™ Ablation System for the Treatment of Ventricular Tachycardia (Sphere VT)

Sphere VT is a prospective, multi-center, single-arm, unblinded pivotal clinical study. Adult subjects with recurrent, sustained, monomorphic ventricular tachycardia (MMVT) due to prior myocardial infarction (MI) will be enrolled and treated with the Sphere-9 Catheter and Affera Ablation System.

Participants needed: 260
Trial details
Age: 18-85Biological sex: AllType: InterventionalSponsor: Medtronic Cardiac Ablation SolutionsUpdated: Sep 29, 2026Locations: 5
Eligibility criteria

Prior myocardial infarction (MI). [+6]

Incessant VT necessitating hemodynamic support prior to the ablation procedure. [+35]

Status: Recruiting

PULSED AF Post-Approval Study

PULSED AF PAS is a prospective, global, multi-center, non-randomized, observational trial. Subjects will be treated with the PulseSelect™ PFA System and followed through 36 months.

Participants needed: 580
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: Medtronic Cardiac Ablation SolutionsUpdated: Sep 22, 2026Locations: 23
Eligibility criteria

A diagnosis of recurrent symptomatic paroxysmal AF or persistent AF [+4]

Long-standing persistent AF (continuous AF sustained >12 months) [+4]

Status: Recruiting

Safety and Performance of the SpherePVI™ Catheter to Treat Paroxysmal Atrial Fibrillation

A prospective, single-arm, single-center study to evaluate the safety, performance, and effectiveness of the SpherePVI™ Catheter for treating paroxysmal AF.

Participants needed: 100
Trial details
Age: 18-75Biological sex: AllType: InterventionalSponsor: Medtronic Cardiac Ablation SolutionsUpdated: Sep 15, 2026Locations: 1
Eligibility criteria

A physician's note indicating recurrent AF [+6]

Continuous AF lasting more than 12 months (long-standing persistent AF). [+34]

Status: Recruiting

Safety and Performance of the Affera SpherePVI™ Multi-Ablation System to Treat Paroxysmal Atrial Fibrillation

A prospective, single-arm, multi-center study to evaluate the safety, performance, and effectiveness of the Affera SpherePVI™ Multi-Ablation System for treating paroxysmal atrial fibrillation.

Participants needed: 150
Trial details
Age: 18-75Biological sex: AllType: InterventionalSponsor: Medtronic Cardiac Ablation SolutionsUpdated: Sep 15, 2026Locations: 2
Eligibility criteria

A physician's note indicating recurrent AF [+6]

Continuous AF lasting more than 12 months (long-standing persistent AF). [+34]

Status: Recruiting

Safety and Performance Assessment of the Sphere-9™ Catheter and Affera™ Ablation System for the Treatment of Ventricular Tachycardia (Sphere-9 VT EFS)

Sphere-9 VT EFS is a prospective, multi-center, non-randomized, unblinded feasibility study. Adult subjects with recurrent, sustained, scar-related monomorphic ventricular tachycardia will be enrolled and treated with the Sphere-9 Catheter and Affera Ablation System.

Participants needed: 60
Trial details
Age: 18-85Biological sex: AllType: InterventionalSponsor: Medtronic Cardiac Ablation SolutionsUpdated: Sep 3, 2026Locations: 6
Eligibility criteria

Ischemic cardiomyopathy (ICM) patients with prior history of myocardial infarcti... [+7]

Incessant VT necessitating hemodynamic support prior to the ablation procedure. [+37]

Status: Not yet recruiting

Sphere-9 PAF China Study

The goal of this clinical trial is to find out if the Sphere-9 Catheter and Affera Integrated Mapping and Ablation System is safe and works to treat recurrent symptomatic paroxysmal atrial fibrillation (PAF) in adults who have not been helped by, cannot tolerate, or cannot take certain medicines for PAF. The main questions it aims to answer are: Is the Sphere-9 Catheter and Affera Integrated Mapping and Ablation System safe for treating PAF? Does the treatment help keep patients free from atrial fibrillation and other abnormal heart rhythms during the 12 months after the procedure? Participants will: Have their heart rhythm assessed before and after the ablation procedure. Have PAF treated using the Sphere-9 Catheter and Affera Integrated Mapping and Ablation System. Have follow-up visits at 3, 6, and 12 months after the procedure.

Participants needed: 180
Trial details
Age: 18-80Biological sex: AllType: InterventionalSponsor: Medtronic Cardiac Ablation SolutionsUpdated: Aug 27, 2026Locations: 10
Eligibility criteria

a physician's note indicating at least 2 symptomatic PAF episodes occurring with... [+3]

Continuous AF lasting more than 7 days. This includes persistent atrial fibrilla... [+40]

Status: Recruiting

PulseSelect™ PFA Global Registry

The PulseSelect™ PFA Global Registry is a prospective, global, multi-center, observational post-approval study. Subjects will be treated with the PulseSelect™ PFA System and followed according to SOC.

Participants needed: 1,950
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: Medtronic Cardiac Ablation SolutionsUpdated: Aug 13, 2026Locations: 43Duration: 12 Months
Eligibility criteria

Subject is ≥ 18 years of age or minimum age as required by local regulations. [+3]

Subject is enrolled in a concurrent study that has not been approved for concurr... [+1]

Status: Recruiting

Conquer-AF Protocol for Redo Ablation Procedures in Recurrent Paroxysmal and Persistent Atrial Fibrillation Using the Sphere-9 Catheter and Affera Ablation System (Conquer-AF)

Conquer-AF is a prospective, multi-center, interventional, non-randomized clinical study that will enroll up to 400 subjects at up to 30 sites across the United States, Europe, and Australia. Subjects diagnosed with symptomatic recurrent paroxysmal or persistent atrial fibrillation after a single prior ablation procedure will be enrolled in this study. Each subject will undergo a study index redo ablation procedure using the Sphere-9 Catheter and Affera Ablation System and will be followed for 12 months. The expected total study duration (from time of first enrollment to the exit of last enrolled subject) is approximately 2 years.

Participants needed: 400
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: Medtronic Cardiac Ablation SolutionsUpdated: Jul 31, 2026Locations: 30
Eligibility criteria

A physicians' note indicating at least 1 symptomatic AF, AT, or AFL episode occu... [+1]

1. Continuous AF lasting for 12 months or longer 2. LA anteroposterior >55 mm (b...