Clinical trials: Sympathetic Disorder
Fibromyalgia
The Effect of Sympathetic Dysfunction on Muscle Spindle in Fibromyalgia
This study aims to reveal whether there is an impairment in the sympathetic regulation of muscle spindle sensitivity in patients with fibromyalgia syndrome (FMS).
- Trial name
- NCT05704374
- Testing
- sympathetic stimulation maneuver (mental arithmetic test, cold pressure test), Pregabalin 150mg
- Where
- Turkey (Türkiye)
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Istanbul Physical Medicine Rehabilitation Training and Research Hospital
Post-traumatic Stress Disorder, Prehypertension
Sympathetic Overactivity in Post-traumatic Stress Disorder
Post-traumatic stress disorder (PTSD) is a highly prevalent anxiety disorder that is associated with an increased risk of cardiovascular (CV) disease and hypertension.
- Trial name
- SO-PTSD (NCT01627301)
- Testing
- Device-Guided Breathing (DGB), Transcutaneous Vagal Nerve Stimulation (tVNS)
- Where
- United States
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Emory University
Gestational Diabetes
Autonomic Nervous Activity in Women With Gestational Diabetes
Through complex hormonal pathways, insulin resistance can lead to the activation of the sympathetic nervous system, and vice versa. Schobel et al.
- Trial name
- NCT00867022
- Where
- Finland
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- University of Helsinki
Vasodilation, Hypoxia
Sex-related Differences in Sympathetic Vascular Transduction in the Setting of Hypoxemia
The purpose of this project is to identify sex-related differences in the effect of hypoxia on sympathetic vascular transduction.
- Trial name
- NCT05256069
- Testing
- Propranolol Pill
- Where
- United States
- Volunteers
- 31 people, healthy volunteers welcome
- Sponsor
- University of Missouri-Columbia
Nicotine Dependence
E-Cigarettes and SNA
Randomized controlled trial of electronic cigarettes with nicotine, without nicotine, and sham control, on sympathetic nerve activity and markers of oxidative stress.
- Trial name
- NCT02724241
- Testing
- one time exposure to e-cig with nicotine, One time exposure to e-cigarette without nicotine, one time exposure to empty e-cigarette
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University of California, Los Angeles
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
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
Acute Brain Injury, Paroxysmal Sympathetic Hyperactivity
Initial Volume Status in Patients With Acute Brain Injury is Associated With Neurological Prognosis
In this study, we investigated the clinical variability in paroxysmal sympathetic hyperactivity in patients with acute brain injury and examined the prognostic value of the Paroxysmal Sympathetic Hyperactivity Assessment Measure…
- Conditions
- Acute Brain Injury, Paroxysmal Sympathetic Hyperactivity, Volume Status, Right Heart Function
- Trial name
- NCT06090812
- Testing
- Ultrasound evaluation
- Where
- China
- Volunteers
- 30 people
- Sponsor
- Peking Union Medical College Hospital
Breast Cancer, Chemotherapeutic Toxicity
Neurovascular Changes Induced by Chemotherapy
The purpose of the present study was to test the hypothesis that doxorubicin and cyclophosphamide adjuvant chemotherapy (CHT) acutely induces neurovascular and hemodynamic changes in patients with breast cancer.
- Trial name
- NCT03339804
- Testing
- Chemotherapy
- Where
- Brazil
- Volunteers
- 16 people
- Sponsor
- University of Sao Paulo General Hospital
Type 2 Diabetes Mellitus
Empagliflozin and Sympathetic Nerve Traffic
In this study the effects of the Inhibition of the Sodium-Glucose Linked Transporter 2 in the kidney with empagliflozin compared to hydrochlorothiazide on blood pressure and on central sympathic nervous activity will be examined.
- Trial name
- NCT03254849
- Testing
- Empagliflozin, Hydrochlorothiazide 25 mg
- Where
- Germany
- Volunteers
- 75 people
- Sponsor
- Profil Institut für Stoffwechselforschung GmbH
Hypertension, Uncontrolled Hypertension
SMART Study in Real World
This study is a multicenter, single-arm, open-label and post-market study in a real world patient population with uncontrolled hypertension to document the long-term safety and efficacy of a renal mapping/selective renal…
- Conditions
- Hypertension, Uncontrolled Hypertension, Resistant Hypertension, Reduce Antihypertensive Drug Burden
- Trial name
- SMART-RW (NCT06780696)
- Testing
- SyMapCath I™ catheter and SYMPIONEER S1™ Stimulator/Generator
- Where
- China
- Volunteers
- 1,000 people
- Sponsor
- SyMap Medical (Suzhou), Ltd.
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
Hypertension
Vascular Responses to Sympathetic Activation and Altered Shear Rate: The Impact of Hypertension and Sodium Intake
The aim of this study is to determine if alterations in sodium intake alter peripheral vascular function and exercise tolerance in young individuals.
- Trial name
- NCT03558022
- Testing
- Salt Pills
- Where
- United States
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- Virginia Commonwealth University
Rosacea
Role of the Sympathetic Nervous System in Rosacea
Rosacea is a common skin disorder which causes facial redness and inflammation in about 16 million Americans, from an unknown cause.
- Trial name
- NCT03989492
- Testing
- systemic and local stressors
- Where
- 2 sites in United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Kristen Metzler-Wilson
Chronic Kidney Disease
L-arginine to Reduce Sympathetic Nerve Activity in CKD Patients
Chronic kidney disease (CKD) is associated with a higher risk of cardiovascular disease and death. An overactive sympathetic nervous system in CKD patients is one of the major mechanisms increasing the cardiovascular risks in…
- Trial name
- NCT03982160
- Testing
- L-Arginine
- Where
- 2 sites in United States
- Volunteers
- 15 people
- Sponsor
- The University of Texas at Arlington
Cardiovascular Diseases
Virtual Reality-based Therapy and Barriers in Cardiac Patients
The aim of this study is to investigate the chronic hemodynamic and autonomic repercussions of the insertion of VRBT in CR. To qualitatively analyze the perception of patients and physiotherapists regarding the use of VRBT, as…
- Trial name
- NCT04336306
- Testing
- virtual reality-based therapy (VRBT)
- Where
- Brazil
- Volunteers
- 60 people
- Sponsor
- Universidade Estadual Paulista Júlio de Mesquita Filho
Refractory Hypertension
Mechanisms of Refractory Hypertension (Reserpine)
The study is deigned to determine if refractory hypertension is attributable to heightened sympathetic tone by quantifying the antihypertensive benefit of reserpine, a sympatholytic agent, in patients failing other classes of…
- Trial name
- NCT03223272
- Testing
- Reserpine
- Where
- United States
- Volunteers
- 7 people
- Sponsor
- University of Alabama at Birmingham
Cesarean Section Complications, Spinal Anesthesia
Ultrasound Guided Fluid Loading Before Spinal Anesthesia
Perioperative hypotension is a common complication of spinal anesthesia during cesarean sections. The aim of this study was to evaluate the effectiveness of echoguided correction of hypovolemia through crystalloid preloading on…
- Conditions
- Cesarean Section Complications, Spinal Anesthesia, Hypotension, Hypovolemia
- Trial name
- EHCOPRESPA (NCT07108881)
- Testing
- C, T
- Where
- Tunisia
- Volunteers
- 116 people, healthy volunteers welcome
- Sponsor
- University Tunis El Manar
Heart Failure (HF)
Phase 4 Study to Demonstrate Prognostic Usefulness of AdreView™ Scintigraphy for Identifying Subjects With Heart Failure Who Will Experience Death During 60 Months Follow-up.
This aim of the study is to investigate the prognostic usefulness of AdreView™ imaging to identify those subjects with New York Heart Association (NYHA) Class II or III HF who will die during 60 months of follow-up from the date…
- Trial name
- NCT02127307
- Where
- United States
- Volunteers
- 964 people
- Sponsor
- GE Healthcare
Ventricular Dysfunction
Clonidine and Left Ventricular Dysfunction
The objectives of this study are: 1. To evaluate the effect of clonidine, a sympathetic modulator, to reverse cardiac remodeling and to improve hemodynamics in diastolic heart failure (DHF). 2.
- Trial name
- NCT00213902
- Volunteers
- 70 people
- Sponsor
- University Hospital, Strasbourg, France