Clinical trials: Sympathetic Disorder
Parkinson Disease, Neuroendocrine Tumors
124I-MIBG Tracer Evaluation of Myocardial Sympathetic Denervation and Assessment of Neuroendocrine Tumors.
The Feasibility of Novel 124I-MIBG Tracer in Evaluation of Myocardial Sympathetic Denervation and Assessment of Neuroendocrine tumors. Comparison with 123I-MIBG.
- Trial name
- NCT01931488
- Testing
- MIBG label with I123 or I124, SPECT imaging
- Where
- Israel
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Tel-Aviv Sourasky Medical Center
Hypertension, Systolic, Stiffness, Aortic
Sympathetic Regulation of Large Artery Stiffness in Humans With ISH
Stiffening of your blood vessels, particularly the large vessels from your heart (called the aorta and carotids) you age contributes to the development of cardiovascular disease (CVD) such as heart attack and stroke.
- Trial name
- SELECT (NCT04423627)
- Testing
- Clonidine, Hydrochlorothiazide
- Where
- 2 sites in United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University of Iowa
Mild Dehydration
The Effect of Acute Mild Dehydration on Blood Pressure Control
The goal of this project is determine how acute mild dehydration impacts blood pressure control at rest and during static exercise.
- Trial name
- NCT03560869
- Testing
- Normal hydration, Dehydration
- Where
- United States
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- University of Delaware
Temporal Lobe Epilepsy
Autonomic Dysfunction in Temporal Lobe Epilepsy and SUDEP
The study aimed at detection of autonomic dysfunction among cases with temporal lobe epilepsy; using different electrophysiological techniques.
- Trial name
- NCT06269822
- Testing
- Sympathetic skin response, heart rate variability test, quantitative EEG
- Where
- Egypt
- Volunteers
- 54 people, healthy volunteers welcome
- Sponsor
- Cairo University
Hypoxia, Sleep Apnea
Intermittent Hypoxia 2: Cardiovascular and Metabolism
The purpose of this study is to compare cardiovascular physiological adaptation to intermittent hypoxia (IH) of nonobese healthy subjects. The exposure will be two periods of two weeks (IH versus exposure "placebo hypoxia").
- Conditions
- Hypoxia, Sleep Apnea, Obstructive Sleep Apnea
- Trial name
- IH2 (NCT02058823)
- Testing
- Valsartan, Amlodipine
- Where
- France
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- University Hospital, Grenoble
Spinal Cord Injury, Autonomic Dysreflexia
Treatment of Post-SCI Hypotension
While treatment strategies for OH have been identified for use in persons with acute SCI, the field of SCI medicine lacks a gold standard for treatment thresholds and well-defined outcome parameters.
- Conditions
- Spinal Cord Injury, Autonomic Dysreflexia, Orthostatic Hypotension, Baroreceptor Integrity
- Trial name
- NCT02919917
- Testing
- Midodrine Hydrochloride
- Where
- 2 sites in United States
- Volunteers
- 66 people, healthy volunteers welcome
- Sponsor
- James J. Peters Veterans Affairs Medical Center
Heart Failure, Diastolic
Mechanisms and Management of Exercise Intolerance in Older Heart Failure Patients
Heart failure with preserved ejection fraction (HFpEF) is the fastest growing form of heart failure with a high morbidity and mortality rate, and is associated with severe exercise intolerance.
- Trial name
- NCT03111017
- Testing
- Exercise Training
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- The University of Texas at Arlington
Restless Legs Syndrome (RLS)
Effect of Rotigotine Patch Treatment on Cardiovascular Markers in Idiopathic Restless Legs Syndrome
Several studies report association between restless legs syndrome (RLS), HTA and cardiovascular diseases . The mechanisms involved in this relationship remained unknown, but several evidences favor the role of periodic limb…
- Trial name
- NCT01823770
- Testing
- Rotigotine
- Where
- France
- Volunteers
- 130 people, healthy volunteers welcome
- Sponsor
- University Hospital, Montpellier
Hypertension
Neural Mechanism of Aldosterone-induced Insulin Resistance
Patients with high aldosterone hormone have higher blood glucose than normal people. This study is being done to understand how aldosterone hormone affects the nerve activity that controls blood flow in the muscles and blood…
- Trial name
- NCT02102243
- Testing
- DEFINITY® infusion, Human Recombinant Regular Insulin infusion, Dextrose infusion
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Wanpen Vongpatanasin
Autonomic Peripheral Nervous System Diseases
Clinical Translation of 18F-Labeled Hydroxyphenethylguanidines
The purpose of this study is to perform first-in-human PET imaging studies of two new cardiac sympathetic nerve imaging agents, 4-[18F]fluoro-meta-hydroxyphenethylguanidine ([18F]4F-MHPG) and…
- Trial name
- NCT02385877
- Testing
- [18F]4F-MHPG, [18F]3F-PHPG
- Where
- United States
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- University of Michigan
Type 2 Diabetes, Insulin Resistance
Effect of Neuromuscular Electrostimulation on Sympathetic Nerve Activity in Patients With Type 2 Diabetes (ELECTROSYMP2)
Physical activity (PA) is recommended for the treatment of subjects with type 2 diabetes to increase insulin sensitivity and improve metabolic control.
- Trial name
- ELECTROSYMP2 (NCT02171351)
- Testing
- effect of neuromuscular electrostimulation (NMES), effect of neuro electrostimulation (NES), effect of voluntary contractions (VC)
- Where
- France
- Volunteers
- healthy volunteers welcome
- Sponsor
- University Hospital, Caen
Hypertension
Sympathetic Transduction in Obesity
Central (abdominal) obesity is associated with elevated adrenergic activity and arterial blood pressure (BP). Therefore, we tested the hypothesis that transduction of spontaneous muscle sympathetic nerve activity (MSNA) to BP…
- Trial name
- NCT05590546
- Testing
- No intervention
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- University of Kansas Medical Center
Stress, Sympathetic Nervous System
Glucose Levels as a Biomarker for Stress in Firefighters
Stress is known to cause physical structures in the brain to dysregulate, resulting in health problems like cancer, cardiac disease, metabolic disorders (obesity), and depression.
- Conditions
- Stress, Sympathetic Nervous System, Hypothalamic Pituitary Adrenal
- Trial name
- NCT06899373
- Testing
- Continuous glucometer
- Where
- United States
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- University of Utah
Microvascular Angina, Hypertension
Effects of Intensive Long-Term Vasodilation in Hypertensive Patients With Microvascular Angina Pectoris
The purpose of this study is to determine if long-term vasodilatory treatment is more effective than the standard treatment in hypertensive patients with microvascular angina pectoris
- Trial name
- NCT00424801
- Testing
- Lercanidipine, Valsartan, Nicorandil
- Where
- Denmark
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of Aarhus
Healthy, Hyperalgesia
Positron Emission Tomography to Measure Pain and Pain Control
This study will examine how the brain processes pain signals and how the different parts of the brain work with each other in response to painful stimuli.
- Conditions
- Healthy, Hyperalgesia, Pain, Peripheral Nervous System Disease
- Trial name
- NCT00001307
- Testing
- Oxygen-15 Water, Capsaicin
- Where
- United States
- Volunteers
- 273 people, healthy volunteers welcome
- Sponsor
- National Institute of Dental and Craniofacial Research (NIDCR)
Heart Failure, Congestive
Meta-Iodobenzylguanidine Scintigraphy Imaging in Patients With Heart Failure and Control Subjects Without Cardiovascular Disease
The study is designed to study the utility of 123I-mIBG as a diagnostic imaging agent to predict cardiac outcomes in subjects with heart failure and in comparison to subjects without cardiovascular disease.
- Trial name
- NCT00126425
- Testing
- 123I-mIBG (meta-iodobenzylguanidine)
- Where
- United States
- Volunteers
- 587 people, healthy volunteers welcome
- Sponsor
- GE Healthcare
Restless Legs Syndrome, Neuropathic Pain
Spinal Cord Stimulation for Restless Legs Syndrome
The overall goal of this proposed study is to evaluate the underlying mechanisms of neural control of blood flow in the lower extremities in humans with restless leg syndrome (RLS).
- Trial name
- NCT03539081
- Testing
- Dual-energy X-ray absorptiometry Scan, Laboratory Measurements, Blood Flow Measurement
- Where
- United States
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Marshall Holland
Hypertension
Melatonin and Nighttime Blood Pressure in African Americans--24 mg Study
The purpose of this study is to test the effect of oral melatonin supplementation (24 mg per night for 4 weeks) on nighttime blood pressure in African Americans with a history of elevated nighttime blood pressure.
- Trial name
- NCT01114373
- Testing
- Melatonin
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Emory University
Hypotension, Orthostatic, Hypertension
Effects of Melatonin to Reduce Nocturnal Hypertension in Patients With Neurogenic Orthostatic Hypotension
Neurogenic Orthostatic Hypotension (NOH) is clinically defined as a consistent drop in systolic blood pressure (SBP) ≥30mmHg upon standing from a seated or lying position.
- Conditions
- Hypotension, Orthostatic, Hypertension, Autonomic Nervous System Diseases
- Trial name
- NCT02963181
- Testing
- Yohimbine, Melatonin
- Where
- Canada
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's
Spinal Cord Injury
Measurement of Autonomic Cardiovascular Integrity in Persons With SCI
People with a spinal cord injury (SCI) have limited ability to move and feel sensation below the level of the SCI. Doctors and researchers have tests which determine the level of function and sensation, this test was developed by…
- Trial name
- NCT01758692
- Where
- United States
- Volunteers
- 177 people, healthy volunteers welcome
- Sponsor
- James J. Peters Veterans Affairs Medical Center