CompletedNo phase
Lead EvaluAtion for Defibrillation and Reliability (LEADR) / Lead Evaluation for Defibrillation and Reliability in Left Bundle Branch Area Pacing (LEADR LBBAP)
Key facts
- Who runs it
- Medtronic Cardiac Rhythm and Heart Failure
- Where
- Albuquerque, Allentown, Austin, Bay Shore, Charlottesville, Cincinnati, Cleveland, Columbus, Fort Worth, Hartford, Huntsville, Kansas City, Milwaukee, Minneapolis, Nashville, Philadelphia, Richmond, St Louis, Tampa, Torrance, Voorhees Township, and Wilkes-Barre, United StatesSee the 23 sitesAlso in 19 other countries, 32 sites
- Trial code
- Status
- Completed
- People taking part
- 1,007 people enrolled
- Started
- 21 Jun 2021
- Ended
- 6 Nov 2025
- Type of study
- Interventional, 2 groups
- Treatments tested
- Defibrillation (RV Implant)
- Defibrillation (LBBAP Implant)
- Record updated
- 4 November 2026
Who can take part
- Age
- 12 years and older
- Sex
- Women and men
- Healthy volunteers
- Cannot take part
The registry criteria, word for word
Show all 42 criteriaShow less
Other criteria
- 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:; 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
Where in United States
Also in 19 other countries, 32 sites
- LEADR: Presbyterian Heart GroupAlbuquerque, United StatesNo longer taking part
- LEADR: Lehigh Valley Hospital - Cedar CrestAllentown, United StatesNo longer taking part
- LEADR: Texas Cardiac Arrhythmia Research FoundationAustin, United StatesNo longer taking part
- LEADR & LEADR LBBAP: South Shore University Hospital/Northwell HealthBay Shore, United StatesNo longer taking part
- LEADR & LEADR LBBAP: University of Virginia Medical CenterCharlottesville, United StatesNo longer taking part
- LEADR LBBAP: The Christ HospitalCincinnati, United StatesNo longer taking part
- LEADR: TriHealth Hatton Research InstituteCincinnati, United StatesNo longer taking part
- LEADR: Cleveland ClinicCleveland, United StatesNo longer taking part
- LEADR LBBAP: The Ohio State University Wexner Medical CenterColumbus, United StatesNo longer taking part
- LEADR: Texas Health Fort Worth HospitalFort Worth, United StatesNo longer taking part
- LEADR: Hartford HospitalHartford, United StatesNo longer taking part
- LEADR: Heart Center ResearchHuntsville, United StatesNo longer taking part
- LEADR: Saint Luke's Mid America Heart InstituteKansas City, United StatesNo longer taking part
- LEADR LBBAP: Aurora St. Luke's HospitalMilwaukee, United StatesNo longer taking part
- LEADR & LEADR LBBAP: Minneapolis Heart Institute FoundationMinneapolis, United StatesNo longer taking part
- LEADR& LEADR LBBAP: Vanderbilt University medical CenterNashville, United StatesNo longer taking part
- LEADR: Hospital of the University of PennsylvaniaPhiladelphia, United StatesNo longer taking part
- LEADR & LEADR LBBAP: Virginia Commonwealth University Health SystemRichmond, United StatesNo longer taking part
- LEADR: Washington University School of MedicineSt Louis, United StatesNo longer taking part
- LEADR: University of South FloridaTampa, United StatesNo longer taking part
- LEADR LBBAP: Torrance Memorial Medical CenterTorrance, United StatesNo longer taking part
- LEADR: Lourdes Cardiology ServicesVoorhees Township, United StatesNo longer taking part
- LEADR LBBAP: Geisinger Wyoming Valley Medical CenterWilkes-Barre, United StatesNo longer taking part
About the trial
What the trial wants to find out
The LEADR study is designed to assess the safety and efficacy of the Next Generation ICD lead.
Read full original descriptionShow less
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.
The 2 groups in the trial
- Intervention/Treatment (LEADR)Treatment being tested
Patients will be implanted with a Next Generation ICD Lead and undergo required electrical testing
Treatment: Defibrillation (RV Implant)
- Intervention/Treatment (LEADR LBBAP)Treatment being tested
Patients will be implanted with a Next Generation ICD Lead in the LBBAP location and undergo required electrical testing
Treatment: Defibrillation (LBBAP Implant)
Data and sources
- Registry record
- Listed on ClinicalTrials.gov.
- Record updated
- 4 November 2026