Clinical trials: Chronotropic Incompetence
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
The Role of Chronotropic Incompetence in Heart Failure With Normal Ejection Fraction (HFNEF)
What is heart failure with normal ejection fraction? The heart contracts (pumps) and relaxes with each heartbeat. In some people with heart failure, the heart contracts normally but there is reduced relaxation of the heart.
- Trial name
- NCT02354573
- Testing
- Ivabradine
- Where
- United Kingdom
- Volunteers
- 121 people, healthy volunteers welcome
- Sponsor
- University of Oxford
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
Obesity, Adolescent Obesity
Chronotropic Incompetence During Exercise in Obese Adolescents: Clinical Implications and Pathophysiology
A reduction in peak heart rate (HR) and suppressed HR response during exercise is highly prevalent in obese populations. This phenomenon is also known as chronotropic incompetence (CI).
- Trial name
- CICO (NCT03516721)
- Testing
- the prevalence of chronotropic incompetence CI during maximal cardiopulmonary exercise testing, CPET
- Where
- Belgium
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Hasselt University