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Showing 1–24 of 69 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Cardiac Resynchronization Therapy-Defibrillator Clear all
Completed Not applicable Interventional Results available

SJM MRI Diagnostic Imaging Registry (IDE)

NCT02807948
View directory record Official record
Conditions
Cardiac Arrhythmia
Interventions
Pacemaker, ICD, or CRT device
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
189 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
58
States / cities
Scottsdale, Arizona • Tucson, Arizona • Jonesboro, Arkansas + 55 more
Source: ClinicalTrials.gov public record
Updated Aug 25, 2019 · Synced Sep 5, 2026, 5:29 PM EDT
Withdrawn Not applicable Interventional

Patent Foramen Ovale (PFO) Closure at the Time of Endovascular Cardiac Electronic Device Implantation

NCT03232450
View directory record Official record
Conditions
Foramen Ovale, Patent
Interventions
Aspirin, Cardiovascular Implantable Device (CIED), Gore Cardioform Septal Occluder
Drug · Device
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 85 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 12, 2020 · Synced Sep 5, 2026, 5:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Strategic Management to Optimize Response To Cardiac Resynchronization Therapy

NCT03089281
View directory record Official record
Conditions
Heart Failure
Interventions
CRT-D
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
699 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
41
States / cities
Birmingham, Alabama • Huntsville, Alabama • Tucson, Arizona + 37 more
Source: ClinicalTrials.gov public record
Updated Apr 4, 2022 · Synced Sep 5, 2026, 5:29 PM EDT
Terminated Not applicable Interventional Results available

Effect of Posture on Left Ventricular (LV) Transvenous Lead Capture Thresholds (EXPECT)

NCT01520714
View directory record Official record
Conditions
Congestive Heart Failure
Interventions
Medtronic 4195 active fixation LV lead and Medtronic passive fixation LV lead
Device
Lead sponsor
Baylor Research Institute
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Plano, Texas
Source: ClinicalTrials.gov public record
Updated May 25, 2014 · Synced Sep 5, 2026, 5:29 PM EDT
Completed Not applicable Interventional Results available

REsynchronization reVErses Remodeling in Systolic Left vEntricular Dysfunction (REVERSE)

NCT00271154
View directory record Official record
Conditions
Heart Failure
Interventions
Cardiac Resynchronization Therapy (CRT) Device or Implantable Cardioverter Defibrillator (ICD) with CRT
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
684 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2011
U.S. locations
34
States / cities
Huntsville, Alabama • Anchorage, Alaska • Redwood City, California + 31 more
Source: ClinicalTrials.gov public record
Updated Jan 29, 2012 · Synced Sep 5, 2026, 5:29 PM EDT
Terminated No phase listed Observational Results available

OMNI Study--Assessing Therapies in Medtronic Pacemaker, Defibrillator, and Cardiac Resynchronization Therapy Devices.

NCT00277524
View directory record Official record
Conditions
Tachycardia, Ventricular, Heart Failure, Congestive, Ventricular Fibrillation, Ventricular Dysfunction, Bradycardia
Interventions
Not listed
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
3,032 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2010
U.S. locations
113
States / cities
Tucson, Arizona • Little Rock, Arkansas • Fresno, California + 107 more
Source: ClinicalTrials.gov public record
Updated Aug 27, 2013 · Synced Sep 5, 2026, 5:29 PM EDT
Completed Not applicable Interventional Results available

Evaluation of ACUITY™ X4 Quadripolar Coronary Venous Leads and RELIANCE™ 4-FRONT Defibrillation Leads

NCT02071173
View directory record Official record
Conditions
Cardiac Resynchronization Therapy
Interventions
ACUITY X4 quadripolar coronary venous lead and RELIANCE 4-FRONT defibrillation lead
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
2,244 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
96
States / cities
Birmingham, Alabama • Huntsville, Alabama • Anchorage, Alaska + 85 more
Source: ClinicalTrials.gov public record
Updated Jan 6, 2021 · Synced Sep 5, 2026, 5:29 PM EDT
Completed No phase listed Observational Results available

Medtronic Shock-Less Study on Physician Utilization of Shock Reduction Programming

NCT00856349
View directory record Official record
Conditions
Cardiovascular Disease
Interventions
Therapy Programming Report (TPR)
Behavioral
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
Not listed
Enrollment
4,384 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
83
States / cities
Anniston, Alabama • Phoenix, Arizona • Tucson, Arizona + 80 more
Source: ClinicalTrials.gov public record
Updated Jul 2, 2014 · Synced Sep 5, 2026, 5:29 PM EDT
Terminated No phase listed Observational

Correlation Of Respiratory Rate Level And Trend Evaluation in Heart Failure Patients

NCT00758121
View directory record Official record
Conditions
Heart Failure
Interventions
Cardiac Resynchronization Therapy Defibrillator
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Nov 5, 2009 · Synced Sep 5, 2026, 5:29 PM EDT
Completed No phase listed Observational Results available

Strategic MAnagement to Optimize Response To Cardiac Resynchronization Therapy Registry

NCT03075215
View directory record Official record
Conditions
Heart Failure
Interventions
Device Programming of the Boston Scientific Cardiac Resynchronization Therapy Defibrillator (CRT-D)
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
2,044 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
29
States / cities
Anchorage, Alaska • Mesa, Arizona • Jonesboro, Arkansas + 26 more
Source: ClinicalTrials.gov public record
Updated Oct 24, 2023 · Synced Sep 5, 2026, 5:29 PM EDT
Completed No phase listed Observational

Dynamic Thoracic Impedance as a Marker for Heart Failure Decompensation

NCT02134379
View directory record Official record
Conditions
Heart Failure; With Decompensation
Interventions
Medtronic ICDs, CRT-Ds, and CRT-Ps
Device
Lead sponsor
Charles Porter, MD
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Apr 13, 2016 · Synced Sep 5, 2026, 5:29 PM EDT
Completed No phase listed Observational Results available

PARTNERS HF: Program to Access and Review Trending Information and Evaluate Correlation to Symptoms in Patients With Heart Failure

NCT00279955
View directory record Official record
Conditions
Heart Failure, Congestive
Interventions
Cardiac Resynchronization Therapy Device
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
1,024 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
93
States / cities
Huntsville, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 90 more
Source: ClinicalTrials.gov public record
Updated Jun 14, 2012 · Synced Sep 5, 2026, 5:29 PM EDT
Completed Not applicable Interventional Results available

Detect Fluid Early From Intra-thoracic Impedance Monitoring

NCT00916929
View directory record Official record
Conditions
Heart Failure
Interventions
Impedance Monitoring Feature
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
162 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
34
States / cities
Birmingham, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 29 more
Source: ClinicalTrials.gov public record
Updated Feb 18, 2019 · Synced Sep 5, 2026, 5:29 PM EDT
Terminated Not applicable Interventional Results available

Integrated Diagnostics Driven Diuretic and Chronic Medication Management for Heart Failure

NCT02698241
View directory record Official record
Conditions
Heart Failure
Interventions
Diagnostic & Medication Management
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
79 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
8
States / cities
Phoenix, Arizona • Ft. Pierce, Florida • Jacksonville, Florida + 4 more
Source: ClinicalTrials.gov public record
Updated Dec 29, 2019 · Synced Sep 5, 2026, 5:29 PM EDT
Completed Not applicable Interventional Results available

Safety and Efficacy of Automatic Testing Feature in New ICDs and CRT-Ds

NCT00746356
View directory record Official record
Conditions
Heart Failure, Ventricular Arrythmias
Interventions
Testing of the autocapture features of the device
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
128 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
5
States / cities
Little Rock, Arkansas • Browns Mills, New Jersey • Nashville, Tennessee + 1 more
Source: ClinicalTrials.gov public record
Updated Feb 18, 2019 · Synced Sep 5, 2026, 5:29 PM EDT
Terminated No phase listed Observational Results available

Optisure Lead Post Approval Study

NCT02235545
View directory record Official record
Conditions
Heart Failure, Tachycardia, Ventricular
Interventions
St. Jude Medical Optisure Lead
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
1,735 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
46
States / cities
Birmingham, Alabama • Phoenix, Arizona • Jonesboro, Arkansas + 42 more
Source: ClinicalTrials.gov public record
Updated Jul 29, 2025 · Synced Sep 5, 2026, 5:29 PM EDT
Enrolling by invitation No phase listed Observational

Lead Evaluation for Defibrillation and Reliability Post Approval Study

NCT07005232
View directory record Official record
Conditions
Tachyarrhythmia
Interventions
defibrillation lead
Device
Lead sponsor
Medtronic
Industry
Eligibility
Not listed
Enrollment
2,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2032
U.S. locations
52
States / cities
Birmingham, Alabama • Stanford, California • Torrance, California + 45 more
Source: ClinicalTrials.gov public record
Updated Aug 2, 2026 · Synced Sep 5, 2026, 5:29 PM EDT
Completed Phase 2 Interventional Results available

Evaluating Ventricular Arrhythmia in Subjects With Implantable Cardioverter Defibrillator or Cardiac Resynchronization Therapy-Defibrillator

NCT02104583
View directory record Official record
Conditions
Ventricular Arrhythmia
Interventions
Eleclazine, Placebo to match eleclazine
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years to 80 Years
Enrollment
313 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
37
States / cities
Mesa, Arizona • Long Beach, California • Los Angeles, California + 32 more
Source: ClinicalTrials.gov public record
Updated Apr 8, 2019 · Synced Sep 5, 2026, 5:29 PM EDT
Not listed Not applicable Interventional

Cardiac Magnetic Resonance Imaging After Cardiac Resynchronization Therapy

NCT03183011
View directory record Official record
Conditions
Heart Failure, Systolic
Interventions
MRI
Other
Lead sponsor
Kenneth Bilchick, MD
Other
Eligibility
25 Years to 85 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Jun 11, 2017 · Synced Sep 5, 2026, 5:29 PM EDT
Terminated Phase 1 Interventional

A Study to Learn How Safe Study Drug BAY2413555 is, How it Affects the Body, and How it Moves Into, Through, and Out of the Body Over 4 Weeks of Use in Participants With Heart Failure and Implanted Cardiac Defibrillator or Cardiac Resynchronization Devices (ICD/CRT)

NCT05532046
View directory record Official record
Conditions
Chronic Heart Failure
Interventions
BAY2413555 Dose 1, BAY2413555 Dose 2, Placebo to BAY2413555
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years to 79 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
3
States / cities
Atlanta, Georgia • Silver Spring, Maryland • Camp Hill, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 11, 2024 · Synced Sep 5, 2026, 5:29 PM EDT
Completed No phase listed Observational

LONGEVITY Study. Evaluation of the Device and Battery Longevity of Boston Scientific Market-released ICD and CRT-D Devices

NCT02091011
View directory record Official record
Conditions
Implantable Cardioverter Defibrillators, CRT-D Cardiac Resynchronization Therapy Defibrillator
Interventions
Not listed
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
Not listed
Enrollment
1,600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2021
U.S. locations
51
States / cities
Birmingham, Alabama • Glendale, Arizona • Tucson, Arizona + 44 more
Source: ClinicalTrials.gov public record
Updated Aug 1, 2022 · Synced Sep 5, 2026, 5:29 PM EDT
Completed No phase listed Observational

HBP Device EGM Data Collection

NCT03564860
View directory record Official record
Conditions
Sick Sinus Syndrome, AV Block, Heart Failure
Interventions
Device data collection
Procedure
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
3
States / cities
Huntsville, Alabama • Sayre, Pennsylvania • Greenville, South Carolina
Source: ClinicalTrials.gov public record
Updated Oct 7, 2020 · Synced Sep 5, 2026, 5:29 PM EDT
Completed Not applicable Interventional Results available

ENABLE MRI (Magnetic Resonance Imaging)

NCT02652481
View directory record Official record
Conditions
Magnetic Resonance Imaging
Interventions
ImageReady MR Conditional Defibrillation System
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
34
States / cities
Huntsville, Alabama • Jonesboro, Arkansas • Pasadena, California + 31 more
Source: ClinicalTrials.gov public record
Updated Jan 24, 2021 · Synced Sep 5, 2026, 5:29 PM EDT
Not listed No phase listed Observational

The Registry Evaluating Functional Outcomes of Resynchronization Management

NCT00959179
View directory record Official record
Conditions
Congestive Heart Failure
Interventions
Not listed
Lead sponsor
Saint Luke's Health System
Other
Eligibility
18 Years to 90 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
2
States / cities
Elgin, Illinois • Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Aug 13, 2009 · Synced Sep 5, 2026, 5:29 PM EDT