Clinical trials: Sympathetic Disorder
Autonomic Nervous System Diseases
PET Scan in Patients With Neurocardiologic Disorders
This study is designed to use PET scans in order to measure activity of the sympathetic nervous system. The sympathetic nervous system is the portion of the nervous system that maintains a normal supply of blood and fuel to…
- Trial name
- NCT00001418
- Where
- United States
- Volunteers
- 335 people, healthy volunteers welcome
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
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)
Posttraumatic Stress Disorder, Pseudopheochromocytoma
Clinical Autonomic Disorders: A Training Protocol
Background: The autonomic nervous system helps control things that happen automatically in the body, like blood pressure, heart rate, and digestion. When it doesn t work properly, it s called dysautonomia.
- Conditions
- Posttraumatic Stress Disorder, Pseudopheochromocytoma, Healthy Volunteers, Neurocardiogenic Syncope
- Trial name
- NCT02154009
- Where
- United States
- Volunteers
- 21 people
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Hyperhidrosis, Children, Adolescents
Thoracoscopic Sympathetic Chain Interruption for Palmar Hyperhidrosis in Patients Below 18
In this study, the investigators aim to present fifteen years' experience of thoracoscopic sympathetic chain interruption for primary palmar hyperhidrosis in children and adolescents; evaluation of 3 different techniques…
- Conditions
- Hyperhidrosis, Children, Adolescents, Thoracoscopic Sympathetic Chain Interruption, Sympathetic Disorder
- Trial name
- MISforPPH (NCT06113978)
- Testing
- Thoracoscopic sympathectomy, Thoracoscopic sympathotomy, Thoracoscopic sympathetic chain clipping
- Where
- Egypt
- Volunteers
- 420 people
- Sponsor
- dr. Muhammad Abdelhafez Mahmoud, MD
Syncope
Evaluation of Chronic Orthostatic Intolerance
This study will conduct tests with patients with primary chronic orthostatic intolerance (COI) to learn more about this disorder of the autonomic nervous system.
- Trial name
- NCT00069693
- Where
- 3 sites in United States, Canada
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
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)
Cataract
Corneal Endothelium Cell Loss After Cataract Extraction in Patients Taking Tamsulosin
The purpose of this study is to determine whether corneal endothelium cell loss during cataract surgery is higher in patients taking Tamsulosin.
- Trial name
- NCT01076309
- Where
- Denmark
- Volunteers
- 60 people
- Sponsor
- Frederiksberg University 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
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)
Amplified Musculoskeletal Pain Syndrome, Reflex Sympathetic Dystrophy
Audio-Visual Relaxation Technology for Pediatric Amplified Musculoskeletal Pain Syndrome
A pilot randomized controlled trial to assess feasibility, acceptability and generate outcome domains for a future RCT testing the efficacy of immersive virtual reality on pain intensity in pediatric amplified musculoskeletal…
- Conditions
- Amplified Musculoskeletal Pain Syndrome, Reflex Sympathetic Dystrophy, Complex Regional Pain Syndromes
- Trial name
- NCT03762213
- Testing
- Oculus GO VR HMD, application Happy Place (© Mimerse), iPad, application Happy Place (© Mimerse)
- Where
- United States
- Volunteers
- 30 people
- Sponsor
- Tufts Medical Center
Autonomic Nervous System Disease, Healthy
Blood Sampling for Neurochemical and Genetic Testing
This study involves sampling blood from both normal volunteers and patients with diseases known or suspected to involve body chemicals called catecholamines.
- Conditions
- Autonomic Nervous System Disease, Healthy, Hypertension, Pheochromocytoma
- Trial name
- NCT00001147
- Where
- United States
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Abdominal Aortic Aneurysm
Relation betwEen Abdominal Aorta and Carotid Artery Responses to SymPathetic stimulatiON uSing duplEx Ultrasound
Abdominal aortic aneurysm (AAA) is a common vascular disease and associated with risk of rupture, but also with a high cardiovascular (CV) event rate. A key difficulty in AAA is predicting these life-threatening complications.
- Trial name
- RESPONSE (NCT04035252)
- Testing
- Carotid artery reactivity test (CAR-test)
- Where
- 2 sites in Netherlands
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Rijnstate Hospital
Hypertension
Pilot Study of of Renal Arterial Sympathetic Denervation by Cryotherapy
Non-randomized study of 5 subjects that have been selected for prophylactic open surgery due to abdominal aortic aneurysm. During surgery the renal arteries are identified and subjected to about 60 seconds each of freezing by…
- Trial name
- PRASDEN (NCT02345603)
- Testing
- Cryo-therapy
- Where
- Sweden
- Volunteers
- 9 people
- Sponsor
- University Hospital, Linkoeping
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
Autonomic Nervous System Diseases
Sympathetic-parasympathetic Ratio of Our Gaze
ABSTRACT BACKGROUND The existence of the retinohypothalamic pathway suggests that light may influence autonomic outflow activity.
- Trial name
- NCT03322904
- Testing
- iris photography
- Where
- Turkey (Türkiye)
- Volunteers
- 400 people, healthy volunteers welcome
- Sponsor
- Kecioren Education and Training Hospital
Preeclampsia
Cardiovascular and Autonomic Reactivity in Women With a History of Pre-eclampsia
A history of preeclampsia is associated with a low plasma volume and higher sympathetic activity. Methyldopa will suppress sympathetic activity to normal values.
- Trial name
- NCT00117546
- Testing
- alpha methyldopa
- Where
- Netherlands
- Volunteers
- 35 people
- Sponsor
- Radboud University Medical Center
Familial Dysautonomia
Dexmedetomidine Sublingual Film for the Ambulatory Treatment of Hyperadrenergic Autonomic Crisis in Patients With Familial Dysautonomia
The purpose of this placebo controlled interventional study is to collect preliminary data on administering dexmedetomidine in patients with Familial Dysautonomia (FD) during a rapid cessation of autonomic crisis.
- Trial name
- NCT06148311
- Testing
- Dexmedetomidine
- Where
- United States
- Volunteers
- 15 people
- Sponsor
- NYU Langone Health
Autonomic Nervous System Disease, Healthy
Study of Norepinephrine Levels and Sympathetic Nervous System Activity
Brain and nerve cells communicate with each other by releasing and picking up chemicals called neurotransmitters. Norepinephrine is a neurotransmitter used by part of the nervous system activated during stress called the…
- Conditions
- Autonomic Nervous System Disease, Healthy, Hypertension
- Trial name
- NCT00001329
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Syncope
Propranolol to Treat Fainting in Children With Sympathoadrenal Imbalance
This study will examine the effectiveness of the drug propranolol in preventing fainting in patients with sympathoadrenal imbalance (SAI).
- Trial name
- NCT00093860
- Testing
- Propranolol
- Where
- United States
- Volunteers
- 50 people
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
RSD (Reflex Sympathetic Dystrophy), CRPS - Complex Regional Pain Syndrome Type I
Adipose Stem/Stromal Cells in RSD, CRPS, Fibromyalgia
Reflex Sympathetic Dystrophy (RSD), Complex Regional Pain Syndrome (CRPS), Causalgia, and Fibromyalgia represent progressive systemic pain conditions which often worsen over time.
- Conditions
- RSD (Reflex Sympathetic Dystrophy), CRPS - Complex Regional Pain Syndrome Type I, Fibromyalgia
- Trial name
- ADcSVF-CRPS (NCT02987855)
- Testing
- Lipoaspiration, ADcSVF isolation, Normal Saline IV
- Where
- 2 sites in United States, Honduras
- Sponsor
- Healeon Medical Inc