Clinical trials: Cardiac Resynchronisation Therapy (CRT)
Cardiomyopathy, Heart Failure
Does Echocardiographically Guided Ventriculo-Ventricular Optimization Yield a Sustained Improvement in Echocardiographic Parameters in Cardiac Resynchronization Therapy Patients? (DEVISE CRT)
The purpose of this study is to determine whether using an echocardiogram (a painless test where ultrasound is used to see your heart) while using mild electrical stimulation from your own CRT-D device to stimulate the ventricles…
- Trial name
- Devise-CRT (NCT00737490)
- Testing
- "Sequential Arm" (Promote , model # 2207-36 or Atlas HF , model # V-343), "Simultaneous Arm" (Promote , model # 2207-36 or Atlas HF , model # V-343)
- Where
- United States
- Volunteers
- 40 people
- Sponsor
- Duke University
Cardiovascular Disease
Medtronic Shock-Less Study on Physician Utilization of Shock Reduction Programming
The purpose of this clinical trial is to determine whether periodic therapy programming reports illustrating physician usage of shock reduction programming can increase utilization of recommended programming guidelines for…
- Trial name
- NCT00856349
- Testing
- Therapy Programming Report (TPR)
- Where
- 104 sites in United States, Argentina and 10 more
- Volunteers
- 4,384 people
- Sponsor
- Medtronic Cardiac Rhythm and Heart Failure
Heart Failure
Predicting Response to CRT Using Body Surface ECG Mapping
Cardiac resynchronization therapy (CRT) involves pacing the left and right side of the heart in order to improve the coordination of the contraction in patients with heart failure.
- Trial name
- NCT01831518
- Testing
- CRT Implant, Body Surface ECG Mapping
- Where
- 2 sites in United Kingdom
- Volunteers
- 20 people
- Sponsor
- Tom Jackson
Heart Failure
Safety and Efficacy Study of the QuickFlex Micro Model 1258T Left Heart Pacing Lead
This is a prospective, multi-center non-randomized clinical study to evaluate the safety and efficacy of the QuickFlex Micro Model 1258T left ventricular lead in a heart failure patient population.
- Trial name
- NCT00763698
- Testing
- QuickFlex Micro Model 1258T Left Heart Lead
- Where
- 13 sites in United States
- Volunteers
- 86 people
- Sponsor
- Abbott Medical Devices
Heart Failure
Cardiac Resynchronization Therapy (CRT)-Narrow-dp/Dt-Study
Goal is to examine the efficy of Cardiac Resynchronization Therapy in heart failure patients with narrow QRS complex and optimized medical treatment but echocardiographic desynchronization detection as well as the positve…
- Trial name
- CRT-Narrow (NCT00821938)
- Testing
- LV dp/dt pressure measurement
- Where
- Germany
- Volunteers
- 30 people
- Sponsor
- Medtronic Cardiac Rhythm and Heart Failure
Heart Failure
Effect of His-Ventricular (HV) Interval Optimisation in Cardiac Resynchronisation Therapy
Cardiac resynchronisation therapy (CRT) is a specialised type of pacemaker used in patients with severe heart failure to improve symptoms and survival.
- Trial name
- NCT02748876
- Testing
- His-Ventricular (HV) optimisation
- Where
- United Kingdom
- Volunteers
- 14 people
- Sponsor
- Hull University Teaching Hospitals NHS Trust
Heart Failure, Left Bundle-Branch Block
Left Bundle Branch Pacing on Outcomes and Ventricular Remodeling in Biventricular CRT Nonresponders
Heart failure (HF) is the most common nosology encountered in clinical practice. Its incidence and prevalence increase exponentially with increasing age and it is associated with the increased mortality, more frequent…
- Conditions
- Heart Failure, Left Bundle-Branch Block, Ischemic Cardiomyopathy, Non-ischemic Dilated Cardiomyopathy
- Trial name
- RESCUE (NCT05760924)
- Testing
- Cardiac Resynchronization Therapy Devices with Defibrillator Function (CRT-D) or CRT-D Leads Replacement, CRT-D or CRT-D Leads Replacement with New Lead Implantation to Left Bundle Branch and Inactivation of Conventional Right and Left Ventricular Pacing, CRT-D or CRT-D Leads Replacement with New Lead Implantation to Left Bundle Branch and Inactivation of Conventional Right Ventricular Pacing
- Where
- Russia
- Volunteers
- 30 people
- Sponsor
- Tomsk National Research Medical Center of the Russian Academy of Sciences
Heart Failure, Ischemic Cardiomyopathy
Optima Coronary Artery Disease (CAD) (Optimal Mechanical Evaluation)
To evaluate the impact of left ventricular (LV) lead location on LV mechanical function.
- Trial name
- NCT00896142
- Where
- United States
- Volunteers
- 50 people
- Sponsor
- University of Pittsburgh
Heart Failure
Leadless Electrocardiogram (ECG) Evaluation Study
The leadless electrocardiogram (LECG) is a new technology incorporated into the Consulta CRT-P to obtain an ECG signal from the Consulta CRT-P similar to a surface ECG obtained from the device programmer (PECG) or an external ECG…
- Trial name
- LECG (NCT01297283)
- Testing
- LECG first, Programmer ECG first
- Where
- France
- Volunteers
- 195 people
- Sponsor
- Medtronic Cardiac Rhythm and Heart Failure
Heart Failure, Ventricular Arrythmias
Safety and Efficacy of Automatic Testing Feature in New ICDs and CRT-Ds
This study is a prospective, non-randomized, multi-center clinical trial that will assess the safety and effectiveness of investigational models of the Promote™ RF CRT-D and Current™ RF ICD devices.
- Trial name
- NCT00746356
- Testing
- Testing of the autocapture features of the device
- Where
- 5 sites in United States
- Volunteers
- 128 people
- Sponsor
- Abbott Medical Devices
Heart Failure
Effect of Physical Training Combined Cardiac Resynchronization Therapy in Heart Failure Patients
The investigators hypothesis that exercise training would potentiate the effects of cardiac resynchronization therapy in heart failure patients.
- Trial name
- NCT01939795
- Testing
- exercise training and/or CRT
- Where
- Brazil
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University of Sao Paulo General Hospital
Heart Failure, Reduced Left Ventricular Ejection Fraction
EP-Catheter Guided CS-Lead Implantation
In patients undergoing CRT device implantation a lead positioning in the coronary sinus is required. Even this part of the surgical procedure is challenging.
- Conditions
- Heart Failure, Reduced Left Ventricular Ejection Fraction, Left Bundle Branch Block
- Trial name
- NCT01922544
- Where
- Germany
- Volunteers
- 120 people
- Sponsor
- University of Cologne
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
Clinical Usefulness and Efficacy of Intrathoracic Impedance Monitoring Using the OptiVol Patient Alert(TM)
In this study we investigate the clinical value and efficacy of OptiVol (TM) impedance measurements by Medtronic (R) ICD's. We aim to determine sensitivity and positive predictive value for detecting heart failure.
- Trial name
- NCT00488501
- Where
- Netherlands
- Volunteers
- 29 people
- Sponsor
- Catharina Ziekenhuis Eindhoven
Heart Failure
Left Ventricular Capture Management (LVCM) Software Download Clinical Trial
Heart failure is a progressive disease that decreases the pumping action of the heart. This may cause a backup of fluid in the heart and may result in heart beat changes.
- Trial name
- NCT00268281
- Testing
- Left Ventricular Capture Management Software
- Where
- 18 sites in United States
- Volunteers
- 107 people
- Sponsor
- Medtronic Cardiac Rhythm and Heart Failure
Right Ventricular Dysfunction
Right Ventricular Function Changes After CIED Implantation: The RIGHT-CIED Study
This study aims to understand how the right side of the heart changes in people who receive an implantable cardiac electronic device (CIED), such as a pacemaker, ICD, or CRT device.
- Trial name
- RIGHT-CIED (NCT07272395)
- Testing
- Multimodal Right Ventricular Evaluation
- Where
- Turkey (Türkiye)
- Volunteers
- 40 people
- Sponsor
- Istanbul University - Cerrahpasa
Monomorphic Ventricular Tachycardia
Evaluation of Inducible Monomorphic Ventricular Tachycardia (MMVT) in Patients With St. Jude Medical (SJM) Implantable Cardioverter Defibrillator (ICD) Systems or Cardiac Resynchronization Therapy Defibrillation (CRT-D) Systems.
The intent of this observational study is to understand the role of non-invasive programmed stimulation (NIPS) to induce substrate based MMVT (Monomorphic Ventricular Tachycardia) in patients receiving new St.
- Trial name
- EPIC (NCT02584595)
- Testing
- ICD/CRT-D with NIPS or EP Study
- Sponsor
- Abbott Medical Devices
Heart Failure
Clinical Evaluation of Mediguide System in Cardiac Resynchronization Therapy (CRT) Implants
The purpose of this study is to evaluate the safety and performance of the MediGuide™ system during CRT implants.
- Trial name
- NCT01519739
- Testing
- MediGuide™
- Volunteers
- 15 people
- Sponsor
- Abbott Medical Devices
Heart Failure, Cardiac Resynchronization Therapy
Comparative Study to Examine Whether Echocardiography Performed During Cardiac Resynchronization Therapy Device Implantation Can Improve the Response Rate
Empirical implantation of the left ventricular lead is the prevailing practice in cardiac resynchronization therapy device implantation.
- Conditions
- Heart Failure, Cardiac Resynchronization Therapy, Echocardiography
- Trial name
- E-OPT (NCT01014000)
- Testing
- Empirical group, Echocardiography-guided approach
- Where
- China
- Sponsor
- Princess Margaret Hospital, Hong Kong
Heart Failure
Attain StarFix™ Model 4195 Left Ventricular Lead
People who have abnormal heart beats, or whose heart does not beat on its own, may need an electronic device called a pacemaker or a defibrillator.
- Trial name
- NCT00269230
- Testing
- Pacing Lead
- Where
- 25 sites in United States, Canada and 1 more
- Volunteers
- 441 people
- Sponsor
- Medtronic Cardiac Rhythm and Heart Failure