Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results come from ClinicalTrials.gov. When the live registry is unavailable, a clearly labeled stored copy may be shown.

Clear filters

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Oct 21, 2026, 1:14 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 69 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Cardiac Resynchronization Therapy Defibrillator Clear all
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 26, 2014 · Synced Oct 21, 2026, 1:14 AM 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 14, 2009 · Synced Oct 21, 2026, 1:14 AM 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 6, 2009 · Synced Oct 21, 2026, 1:14 AM EDT
Withdrawn Phase 4 Interventional

Remote Interrogation in Rural Emergency Departments

NCT02421549
View directory record Official record
Conditions
Heart Disease, Cardiovascular Disease, Heart Failure, Arrhythmias, Cardiac
Interventions
Unpaired remote monitoring transmitter
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Feb 4, 2019 · Synced Oct 21, 2026, 1:14 AM EDT
Terminated No phase listed Observational Results available

Arrythmia Burden in Cardiac Contractility Modulation (CCM)

NCT05704426
View directory record Official record
Conditions
Atrial Fibrillation, Arrythmia
Interventions
Impulse Dynamics Optimizer Device
Device
Lead sponsor
Hackensack Meridian Health
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Hackensack, New Jersey
Source: ClinicalTrials.gov public record
Updated Aug 19, 2024 · Synced Oct 21, 2026, 1:14 AM EDT
Terminated Not applicable Interventional Results available

Comparison of Cyanoacrylate Tissue Adhesive and Suture for Closure of Cardiac Device Pockets

NCT00674128
View directory record Official record
Conditions
Cardiovascular Disease
Interventions
Cyanoacrylate tissue adhesive (Dermabond), Polyglactin 910 suture (Vicryl)
Device
Lead sponsor
Mayo Clinic
Other
Eligibility
21 Years and older
Enrollment
103 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Dec 29, 2010 · Synced Oct 21, 2026, 1:14 AM EDT
Completed Not applicable Interventional Results available

Cardiac Resynchronization in the Elderly

NCT03031847
View directory record Official record
Conditions
Heart Failure
Interventions
Cardiac Resynchronization Therapy Pacemaker, Cardiac Resynchronization Therapy Defibrillator
Device
Lead sponsor
Samir Saba
Other
Eligibility
75 Years and older
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
6
States / cities
Durham, North Carolina • Columbus, Ohio • Erie, Pennsylvania + 2 more
Source: ClinicalTrials.gov public record
Updated Dec 7, 2023 · Synced Oct 21, 2026, 1:14 AM EDT
Recruiting No phase listed Observational

His Bundle Pacing in Bradycardia and Heart Failure

NCT03008291
View directory record Official record
Conditions
Bradycardia, Heart Failure
Interventions
CRT-D Implantation, CRT-P Implantation, Dual Chamber Pacemaker Implantation
Procedure
Lead sponsor
Yong-Mei Cha
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2026
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 24, 2025 · Synced Oct 21, 2026, 1:14 AM EDT
Completed Not applicable Interventional Results available

Multicenter Automatic Defibrillator Implantation Trial - Chemotherapy-Induced Cardiomyopathy

NCT02164721
View directory record Official record
Conditions
Cardiomyopathy
Interventions
Three-lead CRT-D (Defibrillator)
Device
Lead sponsor
University of Rochester
Other
Eligibility
18 Years to 80 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
9
States / cities
Los Angeles, California • Washington D.C., District of Columbia • Tampa, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Mar 4, 2020 · Synced Oct 21, 2026, 1:14 AM EDT
Completed No phase listed Observational

Cutaneous Heart Sounds Data Collection During Cardiac Resynchronization Therapy (CRT) Optimization Study

NCT01609985
View directory record Official record
Conditions
Heart Failure
Interventions
Not listed
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012
U.S. locations
5
States / cities
Riverside, California • Orlando, Florida • Duluth, Minnesota + 2 more
Source: ClinicalTrials.gov public record
Updated Jul 1, 2013 · Synced Oct 21, 2026, 1:14 AM EDT
Completed Not applicable Interventional Results available

Junctional AV Ablation in CRT-D: JAVA-CRT

NCT02946853
View directory record Official record
Conditions
Systolic Heart Failure, Atrial Fibrillation (Permanent)
Interventions
Atrioventricular junctional (AVJ) ablation, Cardiac resynchronization therapy - defibrillator
Procedure · Device
Lead sponsor
University of Rochester
Other
Eligibility
21 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
21
States / cities
Little Rock, Arkansas • Pasadena, California • Atlanta, Georgia + 16 more
Source: ClinicalTrials.gov public record
Updated Jan 25, 2022 · Synced Oct 21, 2026, 1:14 AM 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 3, 2014 · Synced Oct 21, 2026, 1:14 AM EDT
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 26, 2019 · Synced Oct 21, 2026, 1:14 AM EDT
Completed Not applicable Interventional Results available

HIS-Purkinje Conduction System Pacing Optimized Trial of Cardiac Resynchronization Therapy

NCT04561778
View directory record Official record
Conditions
Heart Failure，Congestive, Cardiomyopathies, Left Ventricular Dysfunction
Interventions
HOT-CRT, Biventricular Pacing
Device
Lead sponsor
Pugazhendhi Vijayaraman
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Danville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 7, 2024 · Synced Oct 21, 2026, 1:14 AM EDT
Completed Phase 2Phase 3 Interventional

Comparison of Medical Therapy, Pacing and Defibrillation in Heart Failure

NCT00180258
View directory record Official record
Conditions
Congestive Heart Failure
Interventions
Cardiac Resynchronization Therapy with & without defibrillator
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
2,200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2002
U.S. locations
1
States / cities
Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 25, 2007 · Synced Oct 21, 2026, 1:14 AM EDT
Completed Not applicable Interventional

Cardiac Resynchronization Therapy Defibrillator Based Impedance Monitoring Study

NCT00500838
View directory record Official record
Conditions
Heart Failure
Interventions
Transthoracic Impedance
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
4
States / cities
Little Rock, Arkansas • Glendale, California • Browns Mills, New Jersey + 1 more
Source: ClinicalTrials.gov public record
Updated Feb 1, 2019 · Synced Oct 21, 2026, 1:14 AM EDT
Completed Not applicable Interventional

Improvement in Clinical Outcomes in Heart Failure Patients With ICDs That Practice Meditation

NCT00611260
View directory record Official record
Conditions
Congestive Heart Failure, Cardiac Resynchronization Therapy
Interventions
Vipassana Meditation practice and instruction, Standard Medical Care
Behavioral · Other
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 85 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated May 30, 2017 · Synced Oct 21, 2026, 1:14 AM 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 30, 2025 · Synced Oct 21, 2026, 1:14 AM EDT
Completed Phase 4 Interventional Results available

'Effect of CRT on Defibrillation Threshold Estimates' Study

NCT00626093
View directory record Official record
Conditions
Sudden Cardiac Death
Interventions
Cardiac Resynchronization Therapy - Defibrillator (CRT-D)
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
77 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
2
States / cities
Santa Monica, California • Colorado Springs, Colorado
Source: ClinicalTrials.gov public record
Updated Feb 5, 2019 · Synced Oct 21, 2026, 1:14 AM 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 7, 2021 · Synced Oct 21, 2026, 1:14 AM 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 28, 2013 · Synced Oct 21, 2026, 1:14 AM 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 14, 2016 · Synced Oct 21, 2026, 1:14 AM EDT
Completed Not applicable Interventional Results available

Promote Q Cardiac Resynchronization Therapy Defibrillator (CRT-D) and Quartet Left Ventricular Heart Lead Study

NCT00990665
View directory record Official record
Conditions
Heart Failure
Interventions
CRT-D and LV lead (Quartet™ lead and Promote Q® device system)
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
178 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
24
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Glendale, California + 20 more
Source: ClinicalTrials.gov public record
Updated Feb 27, 2019 · Synced Oct 21, 2026, 1:14 AM EDT
Completed No phase listed Observational

Reverse Electrical Remodeling of Native Conduction in Cardiac Resynchronization Therapy

NCT01924221
View directory record Official record
Conditions
Heart Failure, Patients Undergoing CRT-D Device Implantation
Interventions
Not listed
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 100 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2022
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 30, 2022 · Synced Oct 21, 2026, 1:14 AM EDT