Clinical trials: Cardiovascular Autonomic Dysfunction
Syncope, Syncope, Vasovagal
Assessment of the Mechanism of Non-cardiac Syncope
Identifying the mechanism of non-cardiac syncope is the essential prerequisite for an effective personalized therapy. Aim of this multicentre, prospective, cross-sectional, observational study is to assess effectiveness and…
- Conditions
- Syncope, Syncope, Vasovagal, Orthostatic Hypotension, Syncope, Carotid Sinus
- Trial name
- 2STEPS (NCT05728255)
- Testing
- ABPM plys SCAFB
- Where
- 8 sites in France, Italy and 3 more
- Volunteers
- 330 people
- Sponsor
- Istituto Auxologico Italiano
Hypertension, Pure Autonomic Failure
The Role of Endothelin in the Supine Hypertension of Autonomic Failure
The purpose of this study is to test the hypothesis that endothelin plays a role in the pathogenesis of supine hypertension in pure autonomic failure by increasing vascular resistance.
- Conditions
- Hypertension, Pure Autonomic Failure, Multiple System Atrophy
- Trial name
- NCT01119417
- Testing
- BQ123, Saline
- Where
- United States
- Sponsor
- Vanderbilt University
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)
Post-traumatic Stress Disorder (PTSD), Cardiovascular Diseases
NightWare and Cardiovascular Health in Veterans With PTSD
The purpose of this study is to learn more about the effectiveness of a prescription wrist-wearable device called NightWare (NW) on improving sleep in Veterans with nightmares related to posttraumatic stress disorder (PTSD).
- Conditions
- Post-traumatic Stress Disorder (PTSD), Cardiovascular Diseases, Autonomic Dysfunction, Vascular Stiffness
- Trial name
- NCT06419959
- Testing
- NightWare
- Where
- United States
- Volunteers
- 125 people, healthy volunteers welcome
- Sponsor
- VA Office of Research and Development
Orthostatic Hypotension
Water and the Gastropressor Response - Tachyphylaxis
We are studying the effects of oral water ingestion in patients with orthostatic hypotension. In this study, we are testing the null hypothesis that the blood pressure increase with oral water ingestion will not be diminished if…
- Trial name
- NCT00580996
- Testing
- water high dose, water tiny dose
- Where
- United States
- Volunteers
- 20 people
- Sponsor
- Satish R. Raj
Migraine Headache
Autonomic Dysfunction in Patients With Migraine: Cardiovascular and Neurophysiology Assessment
Autonomic dysfunction in patients with migraine: cardiovascular and neurophysiology assessment.
- Trial name
- NCT06798259
- Where
- Egypt
- Volunteers
- 116 people, healthy volunteers welcome
- Sponsor
- Beni-Suef University
Alzheimer Dementia (AD), ALS - Amyotrophic Lateral Sclerosis
Ultra-High Resolution PET in Aging, Neurodegeneration and Psychotic Disorders
The goal of this study is to use ultra-high-resolution (UHR) PET imaging to better understand how the brain and spinal cord change in healthy aging and in neurological and psychiatric disorders such as Alzheimer's disease (AD)…
- Conditions
- Alzheimer Dementia (AD), ALS - Amyotrophic Lateral Sclerosis, Parkinson s Disease, REM Sleep Behavior Disorder (iRBD)
- Trial name
- NCT07509125
- Testing
- UHR PET/CT scan of the brain with ¹⁸F-FDG, UHR PET/CT scan of the brain with ¹⁸F-PE2I, UHR PET/CT scan of the brain with ¹⁸F-SynVesT-1
- Where
- Belgium
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Universitaire Ziekenhuizen KU Leuven
Multiple System Atrophy
Study of ATH434 in Participants with Multiple System Atrophy
This study will assess the safety and efficacy of ATH434 in participants with Multiple System Atrophy
- Trial name
- NCT05109091
- Testing
- ATH434 dose level 1, ATH434 dose level 2
- Where
- 23 sites in United States, Australia and 4 more
- Volunteers
- 77 people
- Sponsor
- Alterity Therapeutics
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)
Type 2 Diabetes Mellitus, Endothelial Dysfunction
Acute Effects of Sildenafil on Endothelial Function in People With Diabetes
This is a double-blind, placebo-controlled, cross-over trial using a single dose of 100 mg sildenafil or placebo in 40 subjects with T2DM without known cardiovascular disease.
- Trial name
- NCT00527995
- Testing
- Sildenafil
- Where
- Germany
- Volunteers
- 40 people
- Sponsor
- Ruhr University of Bochum
Parkinson Disease
Telerehabilitation for Dysautonomia in Parkinson's Disease
People diagnosed with Parkinson's Disease (PD) exhibit a combination of motor and non-motor symptoms, with the latter posing challenges in terms of identification and management.
- Trial name
- PKT (NCT06017232)
- Testing
- Hybrid telerehabilitation program
- Where
- Canada
- Volunteers
- 16 people
- Sponsor
- Université de Sherbrooke
Multiple Myeloma
A Study Evaluating Hypotension and Autonomic Nervous System Dysfunction in Multiple Myeloma (MM) Patients
The purpose of this study is to determine whether the orthostatic hypotension reported among subjects during bortezomib-containing regimen is caused by a dysfunction of the autonomic nervous system (ANS).
- Trial name
- NCT01314625
- Where
- 2 sites in United States
- Volunteers
- 10 people
- Sponsor
- University of Arkansas
Hypotension, Orthostatic
Orthostatic Hypotension in Rehabilitation Patients
The purpose of this study is to determine the prevalence and clinical course of orthostatic hypotension (OH) on a rehabilitation and nursing home unit during their inpatient stay and to initiate a standardized, interdisciplinary…
- Trial name
- NCT00117585
- Testing
- Treatment Phase 1, Treatment Phase 2, Treatment Phase 3
- Where
- United States
- Volunteers
- 341 people
- Sponsor
- VA Office of Research and Development
Pregnancy Related, Hypotension, Orthostatic
Evaluation of Changes of Venous Return After Spinal and Epidural Analgesia and Anesthesia by Ultrasound Guided Vena Cava Diameter Measurement
The investigators propose this study to test the hypotheses that inferior vena cava (IVC) diameter can predict hypotension after labor analgesia (epidural, combined spinal-epidural) and neuraxial anesthesia for cesarean section…
- Trial name
- NCT03555799
- Testing
- Inferior vena cava ultrasound
- Where
- United States
- Volunteers
- 42 people
- Sponsor
- Augusta University
Stroke
Stroke - Sleep Disorders, Dysfunction of the Autonomic Nervous System and Depression
The purpose of this study is to investigate sleep disordered breathing, autonomic dysfunction, and post stroke depression in acute and chronic stroke patients.
- Trial name
- NCT02111408
- Where
- Denmark
- Volunteers
- 114 people
- Sponsor
- Helle Klingenberg Iversen, MD, DmSc
Hypertension
Treatment of Supine Hypertension in Autonomic Failure
Supine hypertension is a common problem that affects at least 50% of patients with primary autonomic failure. Supine hypertension can be severe, and complicates the treatment of orthostatic hypotension.
- Trial name
- NCT00223717
- Testing
- Clonidine, Nitroglycerin transdermal, Dipyridamole/ Aspirin (Aggrenox)
- Where
- United States
- Volunteers
- 152 people
- Sponsor
- Vanderbilt University
Orthostatic Hypotension
Hemodynamic Effects During Land vs Water Exercise for Older Adults With Orthostatic Hypotension
The purpose of the study is to understand how blood pressure, heart rate, and symptoms of low blood pressure (such as dizziness or nausea) are affected by positional changes and exercise when on land or in the water for people…
- Trial name
- NCT05233865
- Testing
- Water exercise, Land exercise
- Where
- United States
- Volunteers
- 25 people
- Sponsor
- University of Texas at Austin
Parkinson's Disease
The Effects of Supplementing Tyrosine on Blood Pressure in Parkinson's Disease
The objective of this experiment is: Primary: To determine the effects of tyrosine supplementation on orthostatic hypotension in people with PD.
- Trial name
- NCT01676103
- Testing
- Tyrosine
- Where
- United States
- Volunteers
- 40 people
- Sponsor
- New York Institute of Technology
Orthostatic Hypotension, Neurogenic Orthostatic Hypotension
Hypercapnia in Orthostatic Hypotension
The Autonomic (or "automatic") Nervous System (ANS) regulates internal processes, including control of heart rate and blood pressure (BP).
- Trial name
- NCT05295810
- Testing
- Sequential Gas Delivery
- Where
- Canada
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- University of Calgary
Autonomic Nervous System Diseases, Orthostatic Hypotension
Treatment of Orthostatic Hypotension
The purpose of this study is to try different medications in patients with low blood pressure and other problems with their involuntary (autonomic) nervous system.
- Conditions
- Autonomic Nervous System Diseases, Orthostatic Hypotension, Dopamine Beta-Hydroxylase Deficiency, Orthostatic Intolerance
- Trial name
- NCT00581477
- Testing
- Droxidopa Oral Product
- Where
- United States
- Volunteers
- 8 people
- Sponsor
- Vanderbilt University