Clinical trials: SNS
Hypertension
Sympathetic Nervous System Modulation in Hypertension
This is a study of patients with high blood pressure who are already treated with an angiotensin converting enzyme inhibitor or receptor blocker and have achieved good or fair blood pressure control.
- Trial name
- NCT00491387
- Testing
- Metoprolol Succinate
- Volunteers
- 24 people
- Sponsor
- University of Cincinnati
Endothelial Function
Physiological Assessment of the Endothelium - Circadian Rhythm and Role of the Sympathetic Nervous System
The purpose of this study is to determine whether interventions aimed at increasing sympathetic tone modify endothelial function measures as assessed by the measurement of flow-mediated dilation (FMD) and constriction (FMC).
- Trial name
- PAN (NCT01713374)
- Testing
- Mental stress, no intervention, Myogenic activation
- Where
- Germany
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Johannes Gutenberg University Mainz
Nervous System
Assessment of Sympathetic Nervous System Activity by Microneurography Recording Technique
Obesity is the consequence of an imbalance between energy intake and energy expenditure. Recent studies have suggested that the sympathetic nervous system (SNS) may be an important determinant of the rate of energy expenditure in…
- Trial name
- NCT00341770
- Where
- United States
- Volunteers
- 600 people
- Sponsor
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Tobacco; Use, Harmful
The Influence of Electronic and Traditional Cigarettes Smoking on Hemodynamic Parameters
It is intended to examine 50 healthy volunteers aged 18 - 60 years. 12-hour abstinence from tobacco smoke, alcohol or coffee before the experiment will be required.
- Trial name
- EPAPHemo (NCT03037775)
- Testing
- Baseline, e-cigarette without nicotine, e-cigarette with nicotine
- Where
- Poland
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Medical University of Warsaw
Neck Pain
The Effects of Spinal Mobilizations on Symptoms, Neck 3D Movement, Neck Muscle Electromyography and Sympathetic Nervous System Activity in People With Neck Pain
This study investigates the effects of spinal mobilizations on symptoms, 3D movement of the neck, neck muscle electromyography and sympathetic nervous system activity in people with neck pain.
- Trial name
- NCT02826590
- Testing
- Neck passive mobilizations, Manual contact
- Where
- Spain
- Volunteers
- 40 people
- Sponsor
- King's College London
Orthostatic Hypertension
Intravenous Norepinephrine for Orthostatic Hypotension
Background: Orthostatic hypotension is a fall in blood pressure when standing up. Normally, a reflex action of the automatic nervous system makes blood vessels tighten when people stand up.
- Trial name
- NCT01285908
- Testing
- Intravenous Norepinephrine Infusion
- Where
- United States
- Volunteers
- 6 people
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Sepsis, Lymphocyte Disorder T
Esmolol in Sepsis Management:Evaluating Immunomodulatory Effects and Impact on Patient Outcomes
Evaluate the effectiveness of esmolol, a selective β1-adrenergic receptor blocker, in modulating immune responses and improving patient outcomes in sepsis.
- Conditions
- Sepsis, Lymphocyte Disorder T, Immunologic Paralysis, Catecholamine; Overproduction
- Trial name
- NCT06390748
- Testing
- esmolol
- Where
- China
- Volunteers
- 150 people
- Sponsor
- Lin Chen
Spinal Cord Injury, Insulin Resistance
IR and Microvascular Blood Flow in SCI
Persons with spinal cord injury (SCI) are at an increased risk for metabolic disorders, including that of insulin resistance. As a result of neurological injury, they often have impaired mechanisms that regulate blood vessel…
- Trial name
- NCT02034331
- Testing
- Insulin iontophoresis, Acetylcholine Iontophoresis, Heat application
- Where
- United States
- Volunteers
- 68 people, healthy volunteers welcome
- Sponsor
- James J. Peters Veterans Affairs Medical Center
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
Myocardial Infarction With Nonobstructive Coronary Arteries
The Prognostic Role of Indices of Sympathetic Nervous System Overdrive in MINOCA
Myocardial infarction with non-obstructive coronary arteries (MINOCA) occurs in 1-13% of all patients with acute myocardial infarction (AMI).
- Trial name
- PRISMA (NCT04681612)
- Testing
- MSNA, Heart Rate Variability, Blood Pressure Variability
- Where
- Greece
- Volunteers
- 150 people
- Sponsor
- Hippocration General Hospital
Dysautonomia, Familial, Baroreflex Failure Syndrome
Carbidopa for the Treatment of Excessive Blood Pressure Variability
The overall study objectives are to determine whether carbidopa (Lodosyn®) is safe and well tolerated and to assess whether it can inhibit catecholamine-induced paroxysmal hypertension and normalize or reduce the exaggerated…
- Trial name
- CarbiFD (NCT02553265)
- Testing
- Carbidopa Low-Dose, Carbidopa High-Dose
- Where
- 2 sites in United States
- Volunteers
- 22 people
- Sponsor
- NYU Langone Health
Arterial Hypertension, Hemodialysis
Mechanisms and Phenotypes of Hypertension in Patients in Chronic Hemodialysis
The goal of this study is to evaluate interdialytic blood pressure changes of the patients in chronic hemodialysis. The main question to be answered is: What is the relative importance of weight gain, the renin angiotensin…
- Trial name
- NCT06764277
- Testing
- There will be no intervention
- Where
- Mexico
- Volunteers
- 32 people
- Sponsor
- Bernardo Rodríguez Iturbe
Healthy, Obesity
Fat Tissue Microperfusion to Measure Leptin Secretion and Its Relations With Fat Breakdown in Humans
Leptin is a hormone that acts in the body as a chemical messenger. It is produced in fat cells and is believed to regulate body weight in humans. Leptin decreases appetite and influences the energy balance of the body.
- Trial name
- NCT00001722
- Where
- United States
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
Hypertension,Essential
Brain BOLD fMRI in Hypertensive and Normotensive Participants
This study will explore the brainstem activity in response to stress in hypertensive patients and normotensive subjects. In addition, it will evaluate if the response in hypertensive patients can be modulated by blocking the…
- Trial name
- BRAIrdN (NCT03473275)
- Testing
- Cold Pressor test, PinPrick test
- Where
- Switzerland
- Volunteers
- 84 people, healthy volunteers welcome
- Sponsor
- Centre Hospitalier Universitaire Vaudois
End-stage Renal Disease (ESRD), Kidney Disease
Sympathetic Activity in Patients With End-stage Renal Disease on Peritoneal Dialysis
Hypothesis: Patients starting peritoneal dialysis with a glucose-based regimen have high sympathetic activity in response to an increase in leptin and insulin.
- Trial name
- SAPD (NCT01228279)
- Testing
- DIANEAL, EXTRANEAL
- Where
- Canada
- Volunteers
- 50 people
- Sponsor
- Ottawa Hospital Research Institute
Air Pollution
Particulate Matter, Blood Pressure, and the Sympathetic Nervous System
Healthy volunteers will be exposed to ambient air near a roadway under the conditions of with and without a facemask and their responses will be evaluated.
- Trial name
- PM-SNS (NCT03079843)
- Testing
- exposure to particulate matter with N 95 facemask, exposure to particulate matter with no face mask
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- University of Michigan
Polycystic Ovary Syndrome
Polycystic Ovary Syndrome - Improving Outcomes
Polycystic ovary syndrome affects a striking 9-18% of Australian reproductive aged women and has been associated with a number of metabolic abnormalities.
- Trial name
- NCT01504321
- Testing
- Moxonidine
- Where
- Australia
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- Baker Heart and Diabetes Institute
Tachycardia, Postural Orthostatic Tachycardia Syndrome
Pathophysiology of Orthostatic Intolerance
The purpose of this study is to describe the mechanism of orthostatic intolerance, relying on cardiovascular physiological studies.
- Trial name
- NCT00608725
- Testing
- DAXOR, QSweat, Intrinsic Heart Rate
- Where
- United States
- Volunteers
- 260 people, healthy volunteers welcome
- Sponsor
- Satish R. Raj
Heart Failure Acute, Heart Failure
Cardiac Output Autonomic Stimulation Therapy for Heart Failure - Hemodynamic Effects
A single-arm study to observe NeuroTronik Cardiac Autonomic Nerve Stimulation (CANS) Therapy System hemodynamic and other physiologic effects.
- Trial name
- COAST-HF FX (NCT03542123)
- Testing
- NeuroTronik CANS Therapy® System
- Where
- Paraguay
- Volunteers
- 30 people
- Sponsor
- NeuroTronik Inc.
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