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Valutazione dell'elettrocatetere per defibrillazione e affidabilità (LEADR)

13 ottobre 2026 aggiornato da: Medtronic Cardiac Rhythm and Heart Failure

The LEADR study is designed to assess the safety and efficacy of the Next Generation ICD lead.

The LEADR LBBAP study is being conducted under the existing US FDA Investigational Device Exemption (IDE) for the Next Generation ICD Lead and is designed to confirm the safety and defibrillation efficacy of the Next Generation ICD Lead when placed in the LBBAP location in ICD and LOT-CRT patient population.

Panoramica dello studio

Descrizione dettagliata

The LEADR and LEADR LBBAP studies will enroll subjects who are indicated to receive an implantable single or dual chamber ICD, or CRT-D, and who meet all of the inclusion criteria and none of the exclusion criteria. Subjects will receive an investigational Next Generation ICD Lead. Subjects in the LEADR study will be followed for at least 18 months following Next Generation ICD Lead implantation in a septal (non-LBBAP) or apical implant location. Enrollment in the LEADR study has been completed (675 subjects enrolled). Subjects in the LEADR LBBAP study will be followed for at least 3 months (ICD-indicated subjects) or 6 months (CRT-indicated subjects) following Next Generation ICD Lead implantation in an LBBAP implant location. Enrollment in the LEADR LBBAP study has been completed (332 subjects enrolled).

Tipo di studio

Interventistico

Iscrizione (Effettivo)

1007

Fase

  • Non applicabile

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Luoghi di studio

      • Garran, Australia, 2605
        • LEADR &LEADR LBBAP: Canberra Hospital
    • Queensland
      • Chermside, Queensland, Australia, 4032
        • LEADR & LEADR LBBAP: The Prince Charles Hospital
    • South Australia
      • Ashford, South Australia, Australia, 8032
        • LEADR: Ashford Hospital
      • Norwood, South Australia, Australia, 5000
        • LEADR & LEADR LBBAP: Royal Adelaide
    • Mitterweg
      • Krems, Mitterweg, Austria, 3500
        • LEADR: Universitätsklinikum Krems
    • Antwerp
      • Edegem, Antwerp, Belgio, 2650
        • LEADR LBBAP: Universitair Ziekenhuis Antwerpen
    • Alberta
      • Calgary, Alberta, Canada, T2N 4N1
        • LEADR: University of Calgary
    • Ontario
      • Newmarket, Ontario, Canada, L3Y8C3
        • LEADR: Southlake Regional Health Centre
    • Quebec
      • Québec, Quebec, Canada, G1V 4G5
        • LEADR & LEADR LBBAP: Institut Universitaire de Cardiologie et de Pneumologie de Quebec
      • Chengdu, Cina
        • LEADR & LEADR LBBAP: West China Hospital of Sichuan University
    • Shanxi
      • Taiyuan, Shanxi, Cina, 030000
        • LEADR: Shanxi Cardiovascular Hospital
      • Copenhagen, Danimarca, 2100
        • LEADR: Rigshospitalet
      • La Tronche, Francia, 38700
        • LEADR: Centre Hospitalier Universitaire de Grenoble - Site Nord
      • Montpellier, Francia, 34960
        • LEADR LBBAP: OC Santé - Clinique du Millénaire
      • Rouen, Francia, 76031
        • LEADR: CHU Hôpitaux de Rouen - Hôpital Charles Nicolle
    • Bielefeld
      • Bielefeld, Bielefeld, Germania, 33604
        • LEADR: Klinikum Bielefeld Kardiologie
    • Fukuoka
      • Kitakyushu, Fukuoka, Giappone, 802-8555
        • LEADR & LEADR LBBAP: Kokura Memorial Hospital
    • Osaka
      • Suita, Osaka, Giappone, 564-8565
        • LEADR & LEADR LBBAP: National Cerebral and Cardiovascular Center
    • Tokyo
      • Shinjuku-Ku, Tokyo, Giappone, 162-8666
        • LEADR: Tokyo Women's Medical University Hospital
      • Hong Kong, Hong Kong
        • LEADR & LEADR LBBAP: Queen Mary Hospital
      • Lai Chi Kok, Hong Kong, 999077
        • LEADR: Princess Margaret Hospital
      • Bergamo, Italia, 24127
        • LEADR: Azienda Socio Sanitaria Territoriale (ASST) Papa Giovanni XXIII
      • Kuala Lumpur, Malaysia, 50400
        • LEADR & LEADR LBBAP: Institut Jantung Negara - National Heart Institute
    • Limburg
      • Maastricht, Limburg, Olanda
        • LEADR LBBAP: Maastricht Universitair Medisch Centrum
      • Krakow, Polonia
        • LEADR LBBAP: Szpital Uniwersytecki w Krakowie
      • Carnaxide, Portogallo, 2790-134
        • LEADR: Centro Hospitalar de Lisboa Ocidental, E.P.E. Hospital de Santa Cruz Cardiology
      • London, Regno Unito, W12 0HS
        • LEADR & LEADR LBBAP: Imperial College Healthcare NHS Trust - Hammersmith Hospital
      • Belgrade, Serbia
        • LEADR: Klinicki Centar Srbije Pejsmejker centar
    • Singapore
      • Singapore, Singapore, Singapore
        • LEADR: Ng Teng Fong General Hospital
      • L'Hospitalet de Llobregat, Spagna
        • LEADR: Hospital Universitari Bellvitge
      • Valencia, Spagna, 46026
        • LEADR: Hospital Universitario y Politécnico La Fe
    • Granada
      • Granada, Granada, Spagna, 18014
        • LEADR LBBAP: Hospital Universitario Virgen de las Nieves
    • Alabama
      • Huntsville, Alabama, Stati Uniti, 35801
        • LEADR: Heart Center Research
    • California
      • Torrance, California, Stati Uniti, 90505
        • LEADR LBBAP: Torrance Memorial Medical Center
    • Connecticut
      • Hartford, Connecticut, Stati Uniti, 06106
        • LEADR: Hartford Hospital
    • Florida
      • Tampa, Florida, Stati Uniti, 33606
        • LEADR: University of South Florida
    • Minnesota
      • Minneapolis, Minnesota, Stati Uniti, 55407
        • LEADR & LEADR LBBAP: Minneapolis Heart Institute Foundation
    • Missouri
      • Kansas City, Missouri, Stati Uniti, 64111
        • LEADR: Saint Luke's Mid America Heart Institute
      • St Louis, Missouri, Stati Uniti, 63110
        • LEADR: Washington University School of Medicine
    • New Jersey
      • Voorhees Township, New Jersey, Stati Uniti, 08034
        • LEADR: Lourdes Cardiology Services
    • New Mexico
      • Albuquerque, New Mexico, Stati Uniti, 87108
        • LEADR: Presbyterian Heart Group
    • New York
      • Bay Shore, New York, Stati Uniti, 11030
        • LEADR & LEADR LBBAP: South Shore University Hospital/Northwell Health
    • Ohio
      • Cincinnati, Ohio, Stati Uniti, 45202
        • LEADR: TriHealth Hatton Research Institute
      • Cincinnati, Ohio, Stati Uniti, 45219
        • LEADR LBBAP: The Christ Hospital
      • Cleveland, Ohio, Stati Uniti, 44195
        • LEADR: Cleveland Clinic
      • Columbus, Ohio, Stati Uniti, 43210
        • LEADR LBBAP: The Ohio State University Wexner Medical Center
    • Pennsylvania
      • Allentown, Pennsylvania, Stati Uniti, 18103
        • LEADR: Lehigh Valley Hospital - Cedar Crest
      • Philadelphia, Pennsylvania, Stati Uniti, 19104
        • LEADR: Hospital of the University of Pennsylvania
      • Wilkes-Barre, Pennsylvania, Stati Uniti, 18711
        • LEADR LBBAP: Geisinger Wyoming Valley Medical Center
    • Tennessee
      • Nashville, Tennessee, Stati Uniti, 37232
        • LEADR& LEADR LBBAP: Vanderbilt University medical Center
    • Texas
      • Austin, Texas, Stati Uniti, 78705
        • LEADR: Texas Cardiac Arrhythmia Research Foundation
      • Fort Worth, Texas, Stati Uniti, 76104
        • LEADR: Texas Health Fort Worth Hospital
    • Virginia
      • Charlottesville, Virginia, Stati Uniti, 22903
        • LEADR & LEADR LBBAP: University of Virginia Medical Center
      • Richmond, Virginia, Stati Uniti, 23298
        • LEADR & LEADR LBBAP: Virginia Commonwealth University Health System
    • Wisconsin
      • Milwaukee, Wisconsin, Stati Uniti, 53215
        • LEADR LBBAP: Aurora St. Luke's Hospital

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

12 anni e precedenti (Bambino, Adulto, Adulto più anziano)

Accetta volontari sani

No

Sessi ammissibili allo studio

Tutto

Descrizione

LEADR Inclusion Criteria:

  • Subject meets current clinical practice guidelines for implantation of ICD or CRT-D and will undergo one of the following:

    • de novo Medtronic CRT-D system implant
    • de novo Medtronic ICD system implant (single or dual chamber)
  • Subject has, per local law and requirements, the minimum age for autonomously signing an ICF (minimum age of 18 years)

  • Subject is willing to undergo implant defibrillation testing if requested.

  • Subject is geographically stable and willing and able to complete the study procedures and visits for the duration of the follow-up.

LEADR Exclusion Criteria:

  • Subject is unwilling or unable to personally provide Informed Consent.

  • Subject has contraindications for standard RV transvenous lead placement (e.g., mechanical right heart valve).

  • Subject is contraindicated for ≤1 mg dexamethasone acetate.

  • Subject has a life expectancy of less than 12 months

  • For subject undergoing defibrillation testing the following medical conditions exclude them:

    • Pre-existing or suspected pneumothorax during implant
    • Current intracardiac left atrial or left ventricular (LV) thrombus
    • Severe aortic stenosis
    • Severe proximal three-vessel or left main coronary artery disease without revascularization
    • Unstable angina
    • Ejection Fraction less than 25%
    • Recent stroke or transient ischemic attack (within the last 6 months)
    • Known inadequate external defibrillation
    • Any other known medical condition not listed that precludes their participation in the opinion of the investigator
  • Subject is enrolled or planning to enroll in a concurrent clinical study that may confound the results of this study, without documented pre-approval from a Medtronic study manager.

  • Subject with any exclusion criteria as required by local law (e.g., age or other).

  • Pregnant women or breastfeeding women, or women of childbearing potential and who are not on a reliable form of birth regulation method or abstinence

  • Subject with an existing pacemaker (including transcatheter pacing system), ICD, or CRT device or leads

  • Subject with any evidence of active infection or undergoing treatment for an infection

  • Recent (or planned) cardiac surgery or stenting less than 1 month before implant

  • End stage renal disease

  • Subjects with NYHA IV classification

  • Subjects with a transplanted heart

  • Subjects with previously extracted leads

  • Subjects with Left Ventricular Assist Device

LEADR LBBAP Inclusion Criteria:

  • Subject meets current local clinical practice guidelines for implantation of ICD (single or dual chamber) or CRT-D system and will undergo one of the following:

    a) De novo Medtronic ICD system implant (single or dual chamber) or b) De novo Medtronic CRT-D system implant and is intended to also undergo LV lead implant (for patients indicated for CRT-D according to locally approved indications/indications)

  • Subject is 12 years of age or older and also is greater than 30 kg in weight at time of enrollment, has cardiac anatomy conducive to RV coil placement, and is allowed to participate in study per local law and requirements. Subjects from 12 years of age until adult also have a separate indication for pacing or CRT or are anticipated to develop one.

  • Subject provides written authorization and/or consent per institution and geographical requirements.

  • Subject is geographically stable and willing and able to complete the study procedures and visits for the duration of the follow-up

  • Subject is willing to undergo implant defibrillation testing if requested

LEADR LBBAP Exclusion Criteria:

  • Subject has contraindication for screw-in active fixation transvenous lead placement (e.g., mechanical right heart valve)

  • Subject is contraindicated for ≤1 mg dexamethasone acetate

  • Subject has a life expectancy of less than 12 months

  • For subject undergoing defibrillation testing the following medical conditions exclude them:

    • Pre-existing or suspected pneumothorax
    • Current intracardiac left atrial or LV thrombus
    • Severe aortic stenosis
    • Severe proximal three-vessel or left main coronary artery disease without revascularization
    • Unstable angina
    • Recent stroke or transient ischemic attack (within the last 6 months)
    • Known inadequate external defibrillation
    • Any other known medical condition not listed that precludes their participation in the opinion of the investigator
  • Subject is enrolled or planning to enroll in a concurrent clinical study that may confound the results of this study, without documented pre-approval from a Medtronic study manager

  • Subject is pregnant or breastfeeding, or subject is of childbearing potential and not on a reliable form of birth regulation method or abstinence

  • Subject with an existing pacemaker (including transvenous and transcatheter pacing system), ICD (transvenous) or CRT-D (transvenous) device or leads

  • Subject with previous subcutaneous ICD (S-ICD), extravascular ICD (EV ICD) or Implantable Cardiac Monitor explanted within 30 days before implant

  • Subject with any evidence of active bacterial infection or undergoing treatment for a bacterial infection within the last 30 days

  • Recent (or planned) cardiovascular intervention within 30 days before or after implant, such as cardiac surgery, cardiac ablation, Percutaneous Coronary Intervention (PCI), or temporary cardiac pacing for >12 hours

  • Subjects with end stage renal disease

  • Subjects with NYHA IV classification

  • Subjects with a transplanted heart or on the waiting list for a heart transplant

  • Subjects with previously extracted leads

  • Subjects with Left Ventricular Assist Device

  • Subjects that are vulnerable adults

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: Non randomizzato
  • Modello interventistico: Assegnazione di gruppo singolo
  • Mascheramento: Nessuno (etichetta aperta)

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: Intervention/Treatment (LEADR)

Patients will be implanted with a Next Generation ICD Lead and undergo required electrical testing

Required electrical testing for pacing, sensing, impedance and defibrillation will be completed

Sperimentale: Intervention/Treatment (LEADR LBBAP)

Patients will be implanted with a Next Generation ICD Lead in the LBBAP location and undergo required electrical testing

Required electrical testing for pacing, sensing, impedance and defibrillation will be completed

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
LEADR: Estimate the Rate of Major Lead Complication-free Rate at 6 Months
Lasso di tempo: Implant to 6 Months

Subjects free of Next Generation ICD lead-related complication at 6 months post-implant.

Implant to 6 Months
LEADR: Percentage of Subjects Successfully Defibrillated at Implant With the Next Generation ICD Lead
Lasso di tempo: Day 1

Defibrillation testing will be completed in a subset of subjects at implant.

Day 1
LEADR LBBAP: Percentage of Subjects Successfully Defibrillated at Implant With the Next Generation ICD Lead
Lasso di tempo: Day 1

Defibrillation testing will be completed with the Next Generation ICD Lead in the LBBAP location in a subset of subjects at implant.

Day 1
LEADR LBBAP: The Lead-related Major Complication Rate at 3-months
Lasso di tempo: Implant to 3 Months

Subjects free of Next Generation ICD lead-related complication at 3 months post-implant.

Implant to 3 Months

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
LEADR: Estimate the Fracture-free Rate of the Next Generation ICD Lead
Lasso di tempo: up to 18 months

Subjects will be assessed at certain time points for Next Generation ICD lead fracture related to the Next Generation ICD lead.

up to 18 months

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Investigatori

  • Investigatore principale: George Crossley, MD, Vanderbilt University (LEADR)
  • Investigatore principale: Pugazhendhi Vijayaraman, MD, Geisinger Medical Center (LEADR LBBAP)

Pubblicazioni e link utili

La persona responsabile dell'inserimento delle informazioni sullo studio fornisce volontariamente queste pubblicazioni. Questi possono riguardare qualsiasi cosa relativa allo studio.

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Effettivo)

21 giugno 2021

Completamento primario (Effettivo)

3 settembre 2025

Completamento dello studio (Effettivo)

6 novembre 2025

Date di iscrizione allo studio

Primo inviato

21 aprile 2021

Primo inviato che soddisfa i criteri di controllo qualità

26 aprile 2021

Primo Inserito (Effettivo)

28 aprile 2021

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

4 novembre 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

13 ottobre 2026

Ultimo verificato

1 aprile 2025

Maggiori informazioni

Termini relativi a questo studio

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

NO

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

Sì

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .

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