Clinical trials: Cardiac Resynchronisation Therapy (CRT)
Heart Failure
Comparison of AV Optimization Methods Used in Cardiac Resynchronization Therapy (CRT)
The primary objective of SMART-AV is to assess the effect of SmartDelay for determining optimal AV delay timing during CRT compared to both a fixed AV delay and echocardiography-determined optimal AV timing chronically over a…
- Trial name
- SMART-AV (NCT00677014)
- Testing
- AV Delay programming through cardiac resynchronization therapy
- Where
- United States
- Volunteers
- 1,060 people
- Sponsor
- Boston Scientific Corporation
Heart Failure, Systolic
Narrow QRS Ischemic Patients Treated With Cardiac Resynchronization Therapy (NARROW CRT)
Current recommendations require a QRS duration of ≥120ms as a condition for prescribing cardiac resynchronization therapy (CRT).
- Trial name
- NARROW-CRT (NCT01577446)
- Testing
- cardiac resynchronization therapy
- Where
- Italy
- Volunteers
- 120 people
- Sponsor
- Ospedale Santa Maria di Loreto Mare
Heart Failure, Implantable Cardioverter Defibrillator (ICD)
Comparison of the Effects of Different Upper Extremity Aerobic Exercise Training Protocols on Arm Functional Capacity in Patients With Heart Failure With Cardiac Implantable Electronic Devices
1. To determine the most suitable exercise protocol for upper extremity aerobic exercise training, a widely used type of aerobic exercise to improve reduced upper extremity functional capacity in individuals with CIED and HF. 2.
- Conditions
- Heart Failure, Implantable Cardioverter Defibrillator (ICD), Cardiac Resynchronization Therapy Devices
- Trial name
- NCT07592494
- Testing
- High-Intensity Interval Upper Extremity Aerobic Exercise Training, Moderate Intensity Continuous Upper Extremity Aerobic Exercise Training, Lower Extremity Aerobic Exercise Training
- Where
- Turkey (Türkiye)
- Volunteers
- 36 people
- Sponsor
- Erol Olcok Corum Training and Research Hospital
Sympathetic Innervation, Chronic Heart Failure
Sympathetic Innervation of the Heart and Cardiac Resynchronization Therapy(CRT)
The purpose of this study is to assess whether baseline sympathetic innervation in patients with chronic heart failure (CHF) is predictive for response to cardiac resynchronization therapy (CRT).
- Trial name
- PET-CRT (NCT00567645)
- Where
- Netherlands
- Sponsor
- University Medical Center Groningen
Heart Failure
Optimal Programming to Improve Mechanical Indices, Symptoms and Exercise in Cardiac Resynchronization Therapy.
This international study is assessing if repeat adjustment of the timing between the three leads in a cardiac resynchronization therapy (CRT) defibrillator will increase the likelihood of benefit (symptoms and heart function)…
- Trial name
- OPTIMISE-CRT (NCT00489177)
- Testing
- A, B
- Where
- Canada
- Volunteers
- 461 people
- Sponsor
- University of Calgary
Heart Failure, Defibrillators, Implantable
Precision Event Monitoring for Patients With Heart Failure Using HeartLogic
The goal of the PREEMPT-HF study is to collect device and clinical event data to evaluate extended applications of the HeartLogic Heart Failure Diagnostic (HeartLogic) in a broad spectrum of heart failure patients with an…
- Conditions
- Heart Failure, Defibrillators, Implantable, Monitoring, Physiologic, Cardiac Resynchronization Therapy
- Trial name
- PREEMPT-HF (NCT03579641)
- Testing
- HeartLogic Sensors
- Where
- 88 sites in United States, Australia and 11 more
- Volunteers
- 2,184 people
- Sponsor
- Boston Scientific Corporation
Heart Failure
Clinical Investigation on Differences in the Magnitude of CRT Response in WOmen Versus MEN
BIOWOMEN is a study designed to compare the Cardiac Resynchronization Therapy (CRT) response rate in a Heart Failure (HF) population with an equal distribution of men and women.
- Trial name
- BIOWOMEN (NCT02344420)
- Testing
- Echocardiography, Minnesota Living Heart Failure Questionnaire (MLHF), Six minute walk test
- Where
- Spain
- Volunteers
- 494 people
- Sponsor
- Biotronik SE & Co. KG
First Degree Atrioventricular Block
BiventRicular Pacing in prolongEd Atrio-Ventricular intervaL: the REAL-CRT Study
This study was designed to evaluate the potential benefits of treatment with biventricular device in patients with normal systolic function , indication for pacing and impaired atrio-ventricular conduction , by comparing the…
- Trial name
- REAL-CRT (NCT02150538)
- Testing
- Cardiac resynchronization therapy pacemaker, Dual chamber pacemaker
- Where
- Italy
- Volunteers
- 164 people
- Sponsor
- Gianluca Botto
Heart Failure
Comparison of Cardiac Resynchronisation Therapy (CRT) Response Using High Frequency (HF) - ECG or Q-LV Guided Optimisation for Left Ventricular, Pacing Site.
The research aims to compare the response of Cardiac Resynchronisation Therapy (CRT) using HF ECG guided or the conventional method of Q-LV measurement guided optimisation for left ventricular, pacing site.
- Trial name
- NCT05829876
- Testing
- High Frequency ECG Mapping, Q-LV Measurement
- Where
- United Kingdom
- Volunteers
- 180 people
- Sponsor
- University Hospital Birmingham
Chronic Heart Failure
Biventricular or Left Bundle Branch Pacing to Assess the Effect of Cardiac Resynchronization Therapy in Patients Undergoing Transcatheter Aortic Valve Implantation
In this prospective, randomized, multicenter, open-label interventional clinical trial, the investigators' aim to test the effect of Cardiac Resynchronization Therapy (CRT) in cases of new-onset and persistent Left Bundle Branch…
- Trial name
- BUDAPEST-TAVI (NCT07434193)
- Testing
- CRT implantation
- Where
- Hungary
- Volunteers
- 360 people
- Sponsor
- Semmelweis University Heart and Vascular Center
Heart Failure With Reduced Ejection Fraction (HFrEF)
Correlation of Typical LBBB Mechanical Activation Pattern by 2D Strain Echocardiography With Acute GWE Improvement in Patients Receiving LBBp or Conventional BiVp for Cardiac Resynchronization Therapy (Echo LBBp)
The present study is a multicenter interventional non randomised study in patients requiring an implantable device for cardiac resynchronization therapy.
- Trial name
- ECHO-LBBp (NCT06689111)
- Testing
- Left bundle branch pacing lead, CRT with the standard method through cs
- Where
- Greece
- Volunteers
- 100 people
- Sponsor
- University Hospital of Patras
Systolic Heart Failure
Pilot Study Using Echocardiography to Evaluate Patients With Heart Failure and Dyssynchrony Who Have a CRT-D Device
Out of all the patients that receive a CRT-D ( a dual chamber pacemaker with defibrillator ) for cardiac resynchronization therapy there is approximately one-third that do not respond.
- Trial name
- NCT01127334
- Where
- United States
- Sponsor
- University of Mississippi Medical Center
Pacemaker DDD, His Bundle Pacing
Pacing to Maintain Physiologic Ventricular Activation
Right ventricular pacing causes ventricular dyssynchrony and may be associated with impaired outcome. In the last decade, several approaches for more physiological pacing became available and were implemented in the latest…
- Conditions
- Pacemaker DDD, His Bundle Pacing, LBB Area Pacing, Pacing-Induced Cardiomyopathy
- Trial name
- Pace-Conduct (NCT04416958)
- Testing
- cardiac implantable electronic device (CIED) implantation
- Where
- Germany
- Volunteers
- 200 people
- Sponsor
- Klinikum-Fuerth
Heart Failure
The Application of Negative Atrioventricular Hysteresis in Cardiac Resynchronization Therapy With MultiPoint Pacing
The purpose of this study is to evaluate the application of Negative AV Hysteresis (NAVH) to improve electrical synchrony in MultiPoint Pacing (MPP) Cardiac Resynchronization Therapy (CRT) patients.
- Trial name
- NCT02782598
- Testing
- CRT+NAVH
- Where
- Italy
- Volunteers
- 17 people
- Sponsor
- Abbott Medical Devices
Congestive Heart Failure
New Echocardiographic Parameters for Prediction of Response to Cardiac Resynchronization Therapy
Echocardiography parameters for cardiac dyssynchrony had no predictive value in current multicentric prospective studies concerning cardiac resynchronization therapy.
- Trial name
- NEW-CRT (NCT02375399)
- Where
- Germany
- Volunteers
- 15 people
- Sponsor
- Heidelberg University
Heart Failure, Systolic, Left Bundle-Branch Block
Optimizing CRT With ECGI
CRT is delivered from two electrodes on opposite sides of the heart [right (RV) and left ventricle (LV)] delivering stimulation for more efficient heart beats.
- Trial name
- optCRT (NCT03492788)
- Testing
- ECGI-optimized VV-offset, Zero VV-offset
- Where
- United States
- Volunteers
- 3 people
- Sponsor
- Washington University School of Medicine
Bradycardia, Left Bundle Branch Area Pacing
Left Bundle Branch Area Pacing (LBBAP) Monitoring Assistant: Evaluation of Portable ECG Solution
To evaluate the capability to monitor LBB success criteria with the use of a Smart ECG system (ECG monitor, 12 leads ECG cable, ECG viewer software ) during a cardiac device implantation involving the placement of a pacing lead…
- Conditions
- Bradycardia, Left Bundle Branch Area Pacing, Cardiac Resynchronisation Therapy (CRT), ECG
- Trial name
- LBBOT (NCT07254013)
- Testing
- LBBAP implant
- Where
- 4 sites in France
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- MicroPort CRM
Heart Failure
Triple-site Biventricular Stimulation in the Optimization of CRT
Cardiac resynchronization is a recommended therapy for patients with advanced heart failure, under optimized medical treatment with reduced left ventricular ejection fraction and prolonged QRS, nevertheless, still 30% of the…
- Trial name
- TRIUMPH-CRT (NCT02350842)
- Testing
- triple-site biventricular pacing with peri-operative echo guidance, standard biventricular pacing
- Where
- 14 sites in France, Germany and 4 more
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- MicroPort CRM
Chronic Heart Failure
Tailoring Pacemaker Output to Physiology in Chronic Heart Failure
Aims: To explore the clinical effect on exercise tolerance and quality of life, safety and tolerability of pacing at higher outputs in patients with chronic heart failure and a pacemaker.
- Trial name
- NCT03781427
- Testing
- Cardiac resynchronization therapy
- Where
- United Kingdom
- Volunteers
- 70 people
- Sponsor
- University of Leeds
Heart Failure, Cardiac Resynchronization Therapy
Tissue Doppler Imaging (TDI) Versus Electrocardiography (ECG) Interventricular Pacing Delay Optimization in Cardiac Resynchronization Therapy (CRT)
The aim of this study was to compare the response to cardiac resynchronization therapy when the interventricular pacing interval was optimized by Tissue Doppler Imaging (TDI) to response when it was optimized following QRS width…
- Trial name
- NCT01179997
- Testing
- Interventricular pacing delay optimization by using Tissue Doppler-derived displacement curves, Electrocardiographic optimization of the interventricular pacing delay according to QRS width
- Where
- Spain
- Volunteers
- 156 people
- Sponsor
- Hospital Clinic of Barcelona