- ICH GCP
- Registro de ensaios clínicos dos EUA
- Ensaio Clínico NCT07585968
Safety and Effectiveness of the Sphere-9™ Catheter and Affera™ Ablation System for the Treatment of Ventricular Tachycardia (Sphere VT)
Safety and Effectiveness of the Sphere-9™ Catheter and Affera™ Ablation System for the Treatment of Ventricular Tachycardia
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.
Visão geral do estudo
Status
Condições
Intervenção / Tratamento
Tipo de estudo
Inscrição (Estimado)
Estágio
- Não aplicável
Contactos e Locais
Contato de estudo
- Nome: Josh Treadway
- Número de telefone: 817-412-0608
- E-mail: josh.b.treadway@medtronic.com
Estude backup de contato
- Nome: Mckenna Jones
- Número de telefone: 720-837-3089
- E-mail: mckenna.jones@medtronic.com
Locais de estudo
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Colorado
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Littleton, Colorado, Estados Unidos, 80120-5654
- Ativo, não recrutando
- South Denver Cardiology Associates
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Indiana
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Indianapolis, Indiana, Estados Unidos, 46260
- Recrutamento
- Ascension Saint Vincent Hospital - Indianapolis
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Contato:
- Jennifer Brown
- Número de telefone: (317) 338-6439
- E-mail: jennifer.brown4@ascension.org
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New York
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Manhasset, New York, Estados Unidos, 11030-3816
- Recrutamento
- Northwell Health Lenox Hill Hospital
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Contato:
- Afia Haque
- Número de telefone: (718) 470-7330
- E-mail: ahaque5@northwell.edu
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New York, New York, Estados Unidos, 10016-4972
- Ativo, não recrutando
- NYU Langone Medical Center
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North Carolina
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Winston-Salem, North Carolina, Estados Unidos, 27157-0001
- Recrutamento
- Atrium Health Wake Forest Baptist Medical Center
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Contato:
- Keishia Rodriguez
- Número de telefone: (336) 718-5807
- E-mail: kyrodrig@wakehealth.edu
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Ohio
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Columbus, Ohio, Estados Unidos, 43210-1240
- Recrutamento
- The Ohio State University Wexner Medical Center
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Contato:
- Adrianne Miller
- Número de telefone: (614) 688-8252
- E-mail: adrianne.miller3@osumc.edu
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Texas
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Austin, Texas, Estados Unidos, 78705-1852
- Recrutamento
- Texas Cardiac Arrhythmia Research Foundation
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Contato:
- Deb Cardinal
- Número de telefone: (512) 522-9410
- E-mail: dscardinal@austinheartbeat.com
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Critérios de participação
Critérios de elegibilidade
Idades elegíveis para estudo
Aceita Voluntários Saudáveis
Gêneros Elegíveis para o Estudo
Descrição
Inclusion Criteria:
- Prior myocardial infarction (MI).
- At least one episode of sustained (continuous for >30 seconds or requiring ICD intervention for termination) monomorphic ventricular tachycardia within the 6 months prior to enrollment.
- Recurrence of sustained ventricular tachycardia despite Class I or III antiarrhythmic drug therapy or ICD intervention.
- Implanted with an implantable cardiac defibrillator (ICD) or CRT-D for at least 2 months prior to the ablation procedure.
- Age 18 through 85 years old.
- Willing and able to provide informed consent.
- Willing and able to comply with all pre-, post-, and follow-up testing requirements.
Exclusion Criteria:
- Incessant VT necessitating hemodynamic support prior to the ablation procedure.
- Unstable polymorphic VT or ventricular fibrillation (VF).
- Idiopathic VT or VT of non-ischemic cardiomyopathy.
- VT secondary to electrolyte imbalance, active thyroid disease, or any other reversible or non-cardiac cause (e.g., drug-induced arrhythmia).
- VT or VF thought to be from channelopathies.
- More than two prior VT ablations at any time, more than one prior VT ablation within 12 months prior to the ablation procedure, or any VT ablation within 4 weeks prior to the ablation procedure.
- Sarcoidosis.
- Hypertrophic cardiomyopathy, except when due to an apical aneurysm.
- Unstable angina.
- Active myocardial ischemia.
- Type 1 myocardial infarction within 2 months (60 days) prior to the ablation procedure.
- Any percutaneous coronary intervention performed in a setting of unstable angina or acute MI (STEMI or non-STEMI) within 2 months (60 days) prior to the ablation procedure. Note: elective PCI performed during elective angiogram would be excluded only if occurring within 30 days prior to the ablation procedure.
- Any cardiac surgery within 2 months (60 days) prior to the ablation procedure. Note: ICD lead implant/replacement falls under this exclusion, but ICD generator-only replacement does not.
- Left ventricular ejection fraction (LVEF) <15%.
- NYHA Class IV heart failure.
- Decompensated heart failure.
- Extravascular ICD (EV-ICD) or subcutaneous ICD (S-ICD)
- Currently receiving support, or anticipated to receive support prior to the index ablation procedure, via extracorporeal membrane oxygenation (ECMO).
- Circulatory/ventricular assist device (VAD; surgical or percutaneous) implanted, planned or required for the procedure.
- Severe aortic or mitral stenosis, or severe aortic or mitral regurgitation.
- Presence of prosthetic valve in the aortic or mitral valve.
- Patients with advanced COPD (on home oxygen).
- Presence of intracardiac tumor or other abnormality that precludes vascular access, catheter introduction, or manipulation.
- Thromboembolic event (stroke or transient ischemic attack) within 6 months (180 days) prior to the index ablation procedure or with neurologic deficit.
- Left atrium (LA) or left ventricle (LV) intracardiac thrombus on imaging.
- Severe bleeding, clotting or thrombotic disorder, or thrombocytopenia (defined as platelet count <80,000).
- Contraindication to anticoagulation.
- End-stage renal disease (requiring dialysis).
- Acute illness, active infection, or sepsis.
- Life expectancy less than 12 months.
- Any woman known to be pregnant or breastfeeding, or any woman of childbearing potential who is not on a reliable form of birth regulation method or abstinence.
- Body mass index >45 kg/m2.
- Known ongoing drug or alcohol dependency.
- Current or anticipated participation in any other ongoing study of a drug, device, or biologic during the duration of the study not pre-approved by the Sponsor.
- Vulnerable subjects (such as a prisoner, handicapped or mentally disabled person, or person under tutelage or guardianship).
- Any other condition that, in the opinion of the investigator, would preclude enrollment in this study or compliance with follow-up requirements or would pose a significant hazard to the subject if an ablation procedure were performed.
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Tratamento
- Alocação: N / D
- Modelo Intervencional: Atribuição de grupo único
- Mascaramento: Nenhum (rótulo aberto)
Armas e Intervenções
Grupo de Participantes / Braço |
Intervenção / Tratamento |
|---|---|
|
Experimental: Ventricular tachycardia catheter ablation
Ablation using the Sphere-9 Catheter with the Affera Mapping and Ablation System |
Adult subjects with ventricular tachycardia will be enrolled and undergo ablation with the Sphere-9 Catheter with the Affera Mapping and Ablation System. |
O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
|
Primary Safety
Prazo: As applicable, within 7 days or 3 months after the index ablation procedure
|
A pre-defined list of device- or procedure-related SAEs, as adjudicated by the Clinical Events Committee (CEC), occurring within 7 days after the index ablation procedure (or within 3 months after the index ablation procedure for any esophago-pericardial fistula/esophageal perforation) will be considered a primary safety event. |
As applicable, within 7 days or 3 months after the index ablation procedure
|
|
Primary Effectiveness
Prazo: Through 6 months after the index ablation procedure
|
Freedom from recurrence of sustained monomorphic VT (MMVT) in the absence of new or increased dose of Class I or III antiarrhythmic drugs (AAD) through 6 months after the index ablation procedure. |
Through 6 months after the index ablation procedure
|
Colaboradores e Investigadores
Patrocinador
Investigadores
- Investigador principal: Vivek Reddy, MD, Icahn School of Medicine at Mount Sinai
- Investigador principal: Pasquale Santangeli, MD, The Cleveland Clinic
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo (Real)
Conclusão Primária (Estimado)
Conclusão do estudo (Estimado)
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Real)
Atualizações de registro de estudo
Última Atualização Postada (Real)
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Mais Informações
Termos relacionados a este estudo
Palavras-chave
Termos MeSH relevantes adicionais
Outros números de identificação do estudo
- Sphere VT
Plano para dados de participantes individuais (IPD)
Planeja compartilhar dados de participantes individuais (IPD)?
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