Clinical trials: Cardiovascular Autonomic Dysfunction
Orthostatic Hypotension, Spinal Cord Injury
Safety and Efficacy of L-NAME and Midodrine to Increase MAP
After a spinal cord injury the brain is no longer completely in control of the body below the level of injury. This affects many organs and systems in the body, we are interested in understanding how a spinal cord injury affects…
- Trial name
- NCT00835224
- Testing
- L-NAME, Midodrine
- Where
- United States
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- US Department of Veterans Affairs
Diabetes, Hypertension
FFA Hypertension and Inflammation in Lean and Obese Subjects
Although a large number of obese patients develop high blood pressure, the cause is unknown. The purpose of this study is to look at the effect of high fatty acids (a type of fat) in the development of high blood pressure in…
- Conditions
- Diabetes, Hypertension, Obesity
- Trial name
- FFAADA (NCT00721617)
- Testing
- Intralipid 20%, Normal Saline, Oral fat load
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Emory University
Hypertension, Elevated Blood Pressure
Blood Pressure Following Isometric Exercise in Inactive Adults
This study investigates how isometric exercise training (IET) affects blood pressure in physically inactive adults. Isometric exercise involves sustained muscle contractions without movement-for example, pushing against a fixed…
- Conditions
- Hypertension, Elevated Blood Pressure, Sedentary Lifestlye
- Trial name
- BELIEF-BP (NCT06937164)
- Testing
- Isometric Exercise Training (IET), Expectation-Enhancing Informational Framing
- Where
- United Kingdom
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Canterbury Christ Church University
Orthostatic Hypotension
Assessment of Hand-grip in the Prevention of Postural Orthostatic Hypotension
The study is aimed to assess the efficacy of hand-grip in preventing orthostatic hypotension in 20 patients diagnosed with autonomic failure. Five healthy subjects will be studied for comparison.
- Trial name
- NCT01521221
- Testing
- Hand grip maneuver
- Where
- Israel
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Tel-Aviv Sourasky Medical Center
Postural Tachycardia Syndrome, Orthostatic Tachycardia
Acute Salt Handling in Orthostatic Intolerance
The investigators will test the hypothesis that patients with chronic orthostatic intolerance or postural orthostatic tachycardia syndrome (OI or POTS) will be unable to conserve urinary sodium as compared to healthy control…
- Conditions
- Postural Tachycardia Syndrome, Orthostatic Tachycardia, Orthostatic Intolerance
- Trial name
- NCT00581633
- Testing
- normal saline (0.9%)
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University
Glucose Response, Blood Pressure
Effects of Meal and Exercise Sequence on Glucose and Blood Pressure Responses
The purpose of this study is to investigate whether the sequence meal and exercise (exercise before meal or exercise after meal) affects the postprandial metabolism.
- Trial name
- NCT06949683
- Testing
- Meal-Exercise, Exercise-Meal
- Where
- Taiwan
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- National Taiwan Normal University
Stroke, Sympathetic Disorder
Contrast Bath and Sympathetic Skin Response
This study evaluates the effects of contrast bath on sympathetic skin response in stroke patients with complex regional pain syndrome .
- Trial name
- NCT04198532
- Testing
- Contrast bath
- Where
- 2 sites in Turkey (Türkiye)
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Istanbul Physical Medicine Rehabilitation Training and Research Hospital
Hypertension, Pure Autonomic Failure
Nitric Oxide and the Autonomic Nervous System
The amount of blood flowing to the different parts of the body is regulated by the autonomic (automatic) nerves and by local factors produced by the blood vessels.
- Trial name
- NCT00178919
- Testing
- L-NMMA, Trimethaphan
- Where
- United States
- Volunteers
- 112 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University
Postural Orthostatic Tachycardia Syndrome
Cardiovascular Effects of Selective I(f)-Channel Blockade
The study compares three treatment modalities in a human model of Postural orthostatic tachycardia syndrome (POTS): beta-blockers, I(f)-blockers, and placebo.
- Trial name
- NCT00865917
- Testing
- beta-blocker (Metoprolol), I(f)-blocker (ivabradine)
- Where
- 2 sites in Germany
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Hannover Medical School
Psychological Stress, Anxiety
NeuroFinance Human Stress Trial During Financial and Informational Volatility
The NeuroFinance Human Stress Trial (NFHST-2026-001) is a decentralized observational clinical study designed to evaluate how financial market volatility, economic uncertainty, digital media exposure, and information-driven…
- Conditions
- Psychological Stress, Anxiety, Emotional Stress, Autonomic Nervous System Dysfunction
- Trial name
- NFHST (NCT07622589)
- Testing
- Wearable Physiologic Monitoring Platform
- Where
- United States
- Volunteers
- 2,500 people, healthy volunteers welcome
- Sponsor
- Truway Health, Inc.
Hypertension, Diabetes
Free Fatty Acids-Induced Hypertension in Obese Subjects (Aim #2)
The purpose of this study is to see if salsalate, an Nuclear factor-kappaB (NF-κB) mediated inflammation inhibitor, or carvedilol, an α- and β-blocker, will protect against free fatty acid induced hypertension, insulin…
- Trial name
- FFAADA (NCT02406586)
- Testing
- Salsalate, Carvedilol, Intralipid 20%
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Emory University
Hypotension, Orthostatic, Hypertension
Effects of Melatonin to Reduce Nocturnal Hypertension in Patients With Neurogenic Orthostatic Hypotension
Neurogenic Orthostatic Hypotension (NOH) is clinically defined as a consistent drop in systolic blood pressure (SBP) ≥30mmHg upon standing from a seated or lying position.
- Conditions
- Hypotension, Orthostatic, Hypertension, Autonomic Nervous System Diseases
- Trial name
- NCT02963181
- Testing
- Yohimbine, Melatonin
- Where
- Canada
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's
Orthostatic Hypotension, Spinal Cord Injuries
A Study of Blood Pressure and Blood Supply to the Brain in Persons With a Spinal Cord Injury.
The purpose of this study is to determine how blood pressure and blood flow are controlled during head-up tilt in a semi-upright position.
- Trial name
- NCT00248807
- Testing
- 1.25 mg enalaprilat IV, Head up tilt (HUT)
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- VA Office of Research and Development
Dysautonomia
Autonomic Cardiovascular Neuropathy in Recently Diagnosed DM2 Patients (ACNDM2)
The investigators are studying the initial autonomic alterations in participants recently diagnosed with DM2 and in those patients classified as Pre-Diabetes, mainly focused on the baroreceptor sensitivity and on the peripheral…
- Trial name
- ACNDM2 (NCT02931773)
- Testing
- Task Force® Monitor
- Where
- Mexico
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Instituto Nacional de Cardiologia Ignacio Chavez
Orthostatic Hypotension, Nondipping Hypertension
Is Orthostatic Hypotension Associated With Nondipping Hypertension
The aim of the study is to evaluate whether orthostatic hypotension is associated with nondipping hypertension. Methods and patients: 400 subjects who are referred for 24hABPM will be filled questioner regarding their medical…
- Trial name
- NCT00491231
- Where
- Israel
- Volunteers
- 400 people, healthy volunteers welcome
- Sponsor
- Sheba Medical Center
Complex Regional Pain Syndromes, Fibromyalgia
Virtual Environment Rehabilitation for Patients With Motor Neglect Trial
Motor neglect describes a loss of function without a loss of strength, reflexes or sensation. Motor neglect has been described in patients with traumatic brain injury, stroke and chronic pain conditions, e.g.
- Conditions
- Complex Regional Pain Syndromes, Fibromyalgia, Stroke, Traumatic Brain Injury
- Trial name
- VERMONT (NCT03887962)
- Testing
- Virtual Environment Biofeedback, Treadmill walking with no Virtual Environment Biofeedback
- Where
- United Kingdom
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Cambridge University Hospitals NHS Foundation Trust
Amyotrophic Lateral Sclerosis, Brainstem Stroke
Optimizing BCI-FIT: Brain Computer Interface - Functional Implementation Toolkit
This project adds to non-invasive BCIs for communication for adults with severe speech and physical impairments due to neurodegenerative diseases.
- Conditions
- Amyotrophic Lateral Sclerosis, Brainstem Stroke, Muscular Dystrophies, Parkinson's Disease and Parkinsonism
- Trial name
- BCI-FIT (NCT04468919)
- Testing
- BCI-FIT multi-modal access, BCI-FIT adaptive signal modeling, BCI-FIT active querying
- Where
- United States
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- Oregon Health and Science University
Hypertension, Left Ventricular Hypertrophy
Pediatric Hypertension and the Renin-Angiotensin SystEm (PHRASE)
Studying the causal roles of components of the renin-angiotensin-aldosterone system (including angiotensin-(1-7) (Ang-(1-7)), angiotensin-converting enzyme 2 (ACE2), Ang II, and ACE), uric acid, and klotho in pediatric…
- Conditions
- Hypertension, Left Ventricular Hypertrophy, Left Ventricular Dysfunction, Left Atrial Dilatation
- Trial name
- PHRASE (NCT04752293)
- Where
- United States
- Volunteers
- 125 people, healthy volunteers welcome
- Sponsor
- Wake Forest University Health Sciences
Myocardial Ischemia, Autonomic Neuropathy
Coronary Blood Flow Regulation During General Anesthesia
The central hypothesis in the present project is that general anesthesia may alter autonomic control such that perioperative coronary blood flow (CBF) is significantly disturbed.
- Conditions
- Myocardial Ischemia, Autonomic Neuropathy, Healthy, Diabetes
- Trial name
- NCT00866801
- Where
- Netherlands
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Amsterdam UMC, location VUmc
Orthostatic Hypotension, Diabetes Mellitus Type 2
Orthostatic Hypotension and Diabetes Mellitus
Rationale: Orthostatic hypotension increases with age and is associated with increased vascular and all-cause mortality. The prevalence of orthostatic hypotension is also increased in diabetic subjects.
- Trial name
- ODET (NCT00807976)
- Where
- Netherlands
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- Medical Research Foundation, The Netherlands