Clinical trials: Sympathetic Activity
Brain Injuries, Craniocerebral Trauma
DASH After TBI Study: Decreasing Adrenergic or Sympathetic Hyperactivity After Traumatic Brain Injury
The investigators intend to determine the effect of adrenergic blockade on 1) short-term physiology, behavior, and cognition and 2) long-term neuropsychological outcomes after severe Traumatic Brain Injury (TBI).
- Conditions
- Brain Injuries, Craniocerebral Trauma, Trauma, Nervous System, Traumatic Brain Injury
- Trial name
- NCT01322048
- Testing
- IV Propranolol and Per Tube Clonidine
- Where
- United States
- Volunteers
- 48 people
- Sponsor
- Vanderbilt University
Hypertension
Comparison of Nebivolol and Metoprolol With Exercise and Angiotensin II in Hypertensive Patients
The purpose of this study is to determine if Nebivolol a) attenuates the angiotensin II (Ang II)-induced increase in oxidative stress, thereby attenuating Ang II-induced vasoconstriction; and b) attenuates sympathetic mediated…
- Trial name
- NCT01502787
- Testing
- Metoprolol succinate, Nebivolol, Forearm blood flow
- Where
- United States
- Volunteers
- 46 people
- Sponsor
- University of Texas Southwestern Medical Center
Cardiomyopathy
Characterization of Sympathetic Nerve Activity in Stress Cardiomyopathy
Stress (Takotsubo) cardiomyopathy (SC) is a peculiar form of acute, reversible myocardial dysfunction predominantly affecting the apical and mid left ventricular segments.
- Trial name
- NCT01048125
- Testing
- Sympathetic Nerve Activity, Mental Stress Test (Color Word Test), The Modified Oxford Technique for Baroreflex Sensitivity
- Where
- United States
- Volunteers
- 2 people, healthy volunteers welcome
- Sponsor
- University of Missouri-Columbia
Elevated Blood Pressure
Mindfulness and Neural Cardiovascular Control in Humans
This study evaluates the impact of mindfulness-based stress reduction (MBSR) on sympathetic nerve activity and arterial stiffness.
- Trial name
- NCT03626363
- Testing
- Stress Management
- Where
- United States
- Volunteers
- 52 people, healthy volunteers welcome
- Sponsor
- Michigan Technological University
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
Heart Failure
Using Clonidine to Improve Leg Weakness in People With Heart Failure
People with heart failure often have weakness in their leg muscles. This study will determine whether the leg weakness is due to very high adrenaline levels and whether the medication clonidine can improve leg weakness.
- Trial name
- NCT00858845
- Testing
- Clonidine Patch
- Where
- United States
- Volunteers
- 11 people
- Sponsor
- University of California, Los Angeles
Bone Blood Flow Regulation
Exploration of Blood Flow Regulation to Bone in Humans
Without blood flow, bone cannot maintain its integrity. Bone blood flow responds to various local and systemic factors, however, bone perfusion in humans remains relatively unstudied.
- Trial name
- NCT04083794
- Testing
- Laboratory based assessments
- Where
- United States
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Spaulding Rehabilitation Hospital
Hypertension
A Randomized Controlled Study to Assess the Effects of Bisoprolol and Atenolol on Resting Heart Rate and Sympathetic Nervous System's Activity in Subjects With Essential Hypertension
This is a Phase 4, prospective, multi-centric and randomized controlled study to compare the effects of bisoprolol and atenolol on resting heart rate (RHR) and sympathetic nervous system's (SNS) activity in subjects with…
- Trial name
- NCT01251146
- Testing
- Bisoprolol, Atenolol
- Where
- 2 sites in China
- Volunteers
- 177 people
- Sponsor
- Merck KGaA, Darmstadt, Germany
Pulmonary Disease, Chronic Obstructive
Effects of Salmeterol on Autonomic Nervous System
This is a 4-week non-randomized, partially blinded, single-arm monocentre study in subjects with Chronic Obstructive Pulmonary Disease (COPD) Global Initiative for Chronic Obstructive Lung Disease (GOLD) class II or III with the…
- Trial name
- ESAN (NCT01536587)
- Testing
- Salmeterol
- Where
- Germany
- Volunteers
- 32 people
- Sponsor
- GlaxoSmithKline
Binge Drinking
Alcohol and Neural Cardiovascular Control in Binge Drinkers
This study evaluates the impact of evening alcohol consumption on sympathetic activity and baroreflex function in binge drinkers.
- Trial name
- NCT03567434
- Where
- United States
- Volunteers
- 69 people, healthy volunteers welcome
- Sponsor
- Baylor University
Hypoglycemia
Hypoglycemia and Autonomic Nervous System Function
The goals of this proposal are to determine the effects of hypoglycemia on the autonomic nervous system.
- Trial name
- HypoANS (NCT01816893)
- Testing
- Hypoglycemic hyperinsulinemic clamp, Euglycemic hyperinsulinemic clamp
- Where
- 2 sites in United States
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- Brigham and Women's Hospital