Clinical trials: Chronotropic Incompetence
Bradycardia
Effectiveness of Pacemaker With Closed Loop Stimulation Compared to Pacemakers With and Without Standard Rate Response
This is a randomized, prospective, single-blinded, multi-center study involving approximately 1500 patients at 100 centers. The purpose of this study is to demonstrate the effectiveness of Closed Loop Stimulation (CLS) rate…
- Trial name
- CLEAR (NCT00355797)
- Testing
- Closed Loop Stimulation (CLS), Standard Rate Adaptive (R) Technology, Non-rate adaptive (DDD) pacing
- Where
- 99 sites in United States
- Volunteers
- 1,491 people
- Sponsor
- Biotronik, Inc.
Heart Failure
Chronotropic Incompetence (CI) Diagnostic Algorithm in Heart Failure Patients
This study is to collect human activity and electrocardiogram (ECG) data from heart failure (HF) patients to aid in the development of a novel chronotropic incompetence (CI) algorithm designed to diagnose CI in patients with HF.
- Trial name
- NCT02358603
- Testing
- Chronotropic Incompetence Diagnostic Algorithm
- Where
- 2 sites in China
- Volunteers
- 48 people
- Sponsor
- Medtronic Cardiac Rhythm and Heart Failure
Heart Failure With a Preserved Ejection Fraction, Heart Failure, Diastolic
Efficacy Study of Pacemakers to Treat Slow Heart Rate in Patients With Heart Failure
Determine the impact of restoring normal heart rate response during exercise and daily activity in patients with heart failure and a preserved ejection fraction (HFpEF) and chronotropic incompetence (CI).
- Conditions
- Heart Failure With a Preserved Ejection Fraction, Heart Failure, Diastolic, Chronotropic Incompetence
- Trial name
- RAPID-HF (NCT02145351)
- Testing
- Rate adaptive atrial pacing using a dual-chamber pacemaker, Pacemaker system will be implanted but set to Pacing Off.
- Where
- United States
- Volunteers
- 32 people
- Sponsor
- Mayo Clinic
Heart Failure
Cardiovascular and Neurohormonal Effects of Faster Atrial Pacing Rate
Many patients with heart failure are unable to increase their heart rate appropriately when their body needs increased blood flow. As a result, they may be unable to mobilize excess fluid that their body retains.
- Trial name
- NCT00698139
- Testing
- Medtronic Pacemaker
- Where
- United States
- Volunteers
- 3 people
- Sponsor
- Columbia University
Heart Failure, ICD
Comparing Rate Response With CLS Versus Accelerometer ICD Settings in Heart Failure Patients With BIOTRONIK CRT-Ds
Dr. Jonathan Hsu and Dr. Eric Adler are conducting a research study to find out more about how implantable cardiac defibrillator (ICD) settings can be adjusted to improve patient cardiovascular health and quality of life.
- Conditions
- Heart Failure, ICD, Chronotropic Incompetence
- Trial name
- CLASS (NCT02693262)
- Testing
- CLS Mode on Biotronik CRT-D, Accelerometer Mode on Biotronik CRT-D
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- University of California, San Diego
Heart Failure
Chronotropic Incompetence in Patients With HFpEF
The purpose of this study is to determine the mechanisms of chronotropic incompetence (inability to increase heart rate with exercise) in patients with heart failure and preserved ejection fraction (HFpEF).
- Trial name
- NCT02524145
- Testing
- Static Handgrip, Dexmedetomidine, Glycopyrrolate
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University of Texas Southwestern Medical Center
Chronotropic Incompetence
The Effect of Blended Sensor Efficiency on Relieving the Heart's Inability to Increase Its Rate During Exercise
The goal of this trial is to test the effect/benefit of a FDA approved blended pacemaker sensor which responds only by comparing physical activity, heart rate, and breathing rate; compared to the accelerometer pacemaker sensor…
- Trial name
- ABSOLVE CI (NCT01619800)
- Testing
- Blended Sensor Optimization (BSO), Accelerometer Alone (AA)
- Where
- United States
- Volunteers
- 2 people
- Sponsor
- Vivek Reddy
Chronic Heart Failure, Atrial Fibrillation
The Influence of Heart Rate Limitation on Exercise Tolerance in Pacemaker Patients.
To examine the effects of heart rate reduction on exercise capacity in control subjects and patients with chronic heart failure.
- Conditions
- Chronic Heart Failure, Atrial Fibrillation, Arrhythmia, Sinus
- Trial name
- TREPPE (NCT02247245)
- Testing
- Ivabradine, Atrial fibrillation
- Where
- United Kingdom
- Volunteers
- 40 people
- Sponsor
- University of Leeds