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 Sep 30, 2026, 2:10 PM 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 171 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: CRT (cardiac resynchronization therapy) Clear all
Completed No phase listed Observational

Predicting Response to Cardiac Resynchronization Therapy in Heart Failure

NCT00359372
View directory record Official record
Conditions
Heart Failure, Left Ventricular Dysfunction
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years and older
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
3
States / cities
Baltimore, Maryland • Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Sep 30, 2026, 2:10 PM EDT
Completed No phase listed Observational

Response to Cardiac Resynchronization Therapy of Previously Right Ventricular Paced Heart Failure Patients

NCT01466621
View directory record Official record
Conditions
Heart Failure, Pacing Induced Dyssynchrony
Interventions
Not listed
Lead sponsor
Allina Health System
Other
Eligibility
18 Years and older
Enrollment
743 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 24, 2016 · Synced Sep 30, 2026, 2:10 PM EDT
Completed No phase listed Observational

Resynchronization Therapy in Young Patients With and Without CHD

NCT00208806
View directory record Official record
Conditions
Dilated Cardiomyopathy, Pediatric
Interventions
congestive heart failure patients
Other
Lead sponsor
Emory University
Other
Eligibility
1 Day to 18 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Dec 10, 2013 · Synced Sep 30, 2026, 2:10 PM EDT
Completed Not applicable Interventional

Stimulus Intensity in Left Ventricular Leads

NCT01060449
View directory record Official record
Conditions
Congestive Heart Failure
Interventions
LV stimulus intensity
Other
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Dec 17, 2013 · Synced Sep 30, 2026, 2:10 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 30, 2012 · Synced Sep 30, 2026, 2:10 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 3, 2026 · Synced Sep 30, 2026, 2:10 PM EDT
Completed No phase listed Observational

Prospective Minnesota Study of ECHO Tissue Doppler Imaging in Cardiac Resynchronization Therapy

NCT00158015
View directory record Official record
Conditions
Heart Failure
Interventions
Not listed
Lead sponsor
Hennepin Healthcare Research Institute
Other
Eligibility
18 Years and older
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2007
U.S. locations
7
States / cities
Coon Rapids, Minnesota • Edina, Minnesota • Minneapolis, Minnesota + 2 more
Source: ClinicalTrials.gov public record
Updated Oct 4, 2012 · Synced Sep 30, 2026, 2:10 PM EDT
Completed No phase listed Observational

Personalized CRT - PSR

NCT03723265
View directory record Official record
Conditions
Heart Failure
Interventions
Cardiac Resynchronization Therapy
Device
Lead sponsor
Medtronic
Industry
Eligibility
Not listed
Enrollment
1,517 participants
Timeline
2012 – 2022
U.S. locations
88
States / cities
Birmingham, Alabama • Anchorage, Alaska • Gilbert, Arizona + 85 more
Source: ClinicalTrials.gov public record
Updated May 20, 2022 · Synced Sep 30, 2026, 2:10 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Prospective Observation of Exercise Parameters in Advanced Heart Failure

NCT01210573
View directory record Official record
Conditions
Advanced Heart Failure
Interventions
adjustment of LVAD or pacemaker
Device
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 18, 2014 · Synced Sep 30, 2026, 2:10 PM EDT
Completed Not applicable Interventional Results available

Cardiac Resynchronization Therapy Efficacy Enhancements

NCT02222818
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Conducted AF Response (CAFR), Conducted AF Response Plus (CAFRPlus)
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
71 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
10
States / cities
Boca Raton, Florida • West Des Moines, Iowa • Minneapolis, Minnesota + 7 more
Source: ClinicalTrials.gov public record
Updated Jan 6, 2017 · Synced Sep 30, 2026, 2:10 PM EDT
Terminated Phase 1 Interventional

Cardiac Resynchronization and Iodine Meta-Iodobenzylguanidine (MIBG) Imaging

NCT01522378
View directory record Official record
Conditions
Congestive Heart Failure
Interventions
123 iodine metaiodobenzylguanidine
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 26, 2017 · Synced Sep 30, 2026, 2:10 PM EDT
Completed No phase listed Observational

Personalized CRT - MPP Post Approval Study

NCT03232944
View directory record Official record
Conditions
Heart Failure
Interventions
Cardiac Resynchronization Therapy - MPP
Device
Lead sponsor
Medtronic
Industry
Eligibility
Not listed
Enrollment
1,338 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
46
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Chula Vista, California + 41 more
Source: ClinicalTrials.gov public record
Updated Feb 17, 2021 · Synced Sep 30, 2026, 2:10 PM EDT
Completed No phase listed Observational

Optimizing Cardiac Resynchronization

NCT00205192
View directory record Official record
Conditions
Heart Failure
Interventions
Cardiac resynchronization pacing
Procedure
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
Not listed
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2011
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Aug 29, 2012 · Synced Sep 30, 2026, 2:10 PM EDT
Completed Phase 4 Interventional Results available

Comparison of AV Optimization Methods Used in Cardiac Resynchronization Therapy (CRT)

NCT00677014
View directory record Official record
Conditions
Heart Failure
Interventions
AV Delay programming through cardiac resynchronization therapy
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
1,060 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 24, 2013 · Synced Sep 30, 2026, 2:10 PM EDT
Completed No phase listed Observational Results available

Advance Cardiac Resynchronization Therapy (CRT) Registry

NCT01805154
View directory record Official record
Conditions
Heart Failure
Interventions
CRT Patients
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
1,529 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
41
States / cities
Birmingham, Alabama • Huntsville, Alabama • Glendale, Arizona + 36 more
Source: ClinicalTrials.gov public record
Updated Aug 12, 2019 · Synced Sep 30, 2026, 2:10 PM EDT
Completed Phase 2Phase 3 Interventional

Device Evaluation of Contak Renewal 2and Easytrak 2 - DECREASE-HF

NCT00158951
View directory record Official record
Conditions
Congestive Heart Failure
Interventions
CONTAK RENEWAL 2/4/4HE CRT-D, EASYTRAK 2 Lead
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
360 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2004
U.S. locations
1
States / cities
Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 25, 2007 · Synced Sep 30, 2026, 2:10 PM 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 Sep 30, 2026, 2:10 PM EDT
Terminated Phase 4 Interventional Results available

Combined Use of BIOTRONIK Home Monitoring and Predefined Anticoagulation to Reduce Stroke Risk

NCT00559988
View directory record Official record
Conditions
Atrial Fibrillation, Atrial Flutter, Stroke, Embolism, Systemic Arterial, Major Bleeding
Interventions
Home Monitoring Guided OAC, Physician-Directed OAC
Drug
Lead sponsor
Biotronik, Inc.
Industry
Eligibility
18 Years and older
Enrollment
2,718 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2013
U.S. locations
73
States / cities
Phoenix, Arizona • Scottsdale, Arizona • Anaheim, California + 70 more
Source: ClinicalTrials.gov public record
Updated Dec 5, 2017 · Synced Sep 30, 2026, 2:10 PM EDT
Recruiting Not applicable Interventional

His-Bundle Corrective Pacing in Heart Failure

NCT05265520
View directory record Official record
Conditions
Right Bundle-Branch Block, Heart Failure, His-bundle Pacing, Cardiac Resynchronization Therapy
Interventions
His-CRT implantation, BIV-CRT implantation
Procedure
Lead sponsor
University of Rochester
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
14
States / cities
Phoenix, Arizona • Los Angeles, California • Tampa, Florida + 8 more
Source: ClinicalTrials.gov public record
Updated Feb 9, 2026 · Synced Sep 30, 2026, 2:10 PM 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 Sep 30, 2026, 2:10 PM EDT
Completed Phase 4 Interventional Results available

PEGASUS CRT Study: Atrial Support Study in Cardiac Resynchronization Therapy

NCT00146848
View directory record Official record
Conditions
Heart Failure
Interventions
Atrial support pacing through cardiac resynchronization therapy. Device: RENEWAL family of CRT-D devices
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
1,742 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2009
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 28, 2011 · Synced Sep 30, 2026, 2:10 PM EDT
Completed Not applicable Interventional Results available

MADIT-CRT: Multicenter Automatic Defibrillator Implantation With Cardiac Resynchronization Therapy

NCT00180271
View directory record Official record
Conditions
Tachycardia, Congestive Heart Failure
Interventions
Cardiac resynchronization therapy with defibrillation, Implantable Cardioverter Defibrillator (ICD)
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
21 Years and older
Enrollment
1,820 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2010
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Dec 19, 2018 · Synced Sep 30, 2026, 2:10 PM 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 Sep 30, 2026, 2:10 PM EDT
Completed No phase listed Observational

Ensure Cardiac Resynchronization Therapy Study

NCT00291564
View directory record Official record
Conditions
Heart Failure
Interventions
Cardiac Resynchronization Therapy Device
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
430 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
32
States / cities
Birmingham, Alabama • Newport Beach, California • Trumbull, Connecticut + 29 more
Source: ClinicalTrials.gov public record
Updated Dec 21, 2007 · Synced Sep 30, 2026, 2:10 PM EDT