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, 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
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
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
Postural Orthostatic Tachycardia Syndrome
Dietary Sodium's Effect on Urinary Sodium and Dopamine Excretion in Patients With Postural Tachycardia Syndrome
Patients with Postural Tachycardia Syndrome (POTS) may not adequately expand their plasma volume in response to a high sodium diet.
- Trial name
- NCT01563107
- Testing
- Plasma Volume, Exercise Capacity Test - Bicycle, Posture Study
- Where
- United States
- Volunteers
- 38 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University Medical Center
Diabetic Retinopathy, Macular Degeneration
Advancing Understanding of Transportation Options
This Stage II randomized, controlled, longitudinal trial seeks to assess the acceptability, feasibility, and effects of a driving decision aid use among geriatric patients and providers.
- Conditions
- Diabetic Retinopathy, Macular Degeneration, Glaucoma, Retinitis Pigmentosa
- Trial name
- AUTO (NCT04141891)
- Testing
- Driving Decision Aid, Older Drivers Website
- Where
- 3 sites in United States
- Volunteers
- 529 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Denver
Hypotension, Orthostatic, Hypotension
Dose Response to the Norepinephrine Precursor Droxidopa in Hypotensive Individuals With Spinal Cord Injury
The goal of this study is to determine the efficacy of the drug Droxidopa (Northera) in increasing blood pressure in subject with hypotension, low blood pressure, which is classified as blood pressure less than 110/70 in males…
- Conditions
- Hypotension, Orthostatic, Hypotension, Spinal Cord Injuries
- Trial name
- NCT03602014
- Testing
- Northera
- Where
- 2 sites in United States
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- James J. Peters Veterans Affairs Medical Center
Hypotension, Spinal Cord Injury
Prevention of Low Blood Pressure in Persons With Tetraplegia
The aim of this investigation is to determine the blood pressure response to NOS inhibition, with L-NAME, in persons with tetraplegia compared to non-SCI control subjects and to establish if blood pressure can be increased while…
- Trial name
- NCT00237770
- Testing
- N-Nitro L-arginine-methylester (L-NAME), Head-up Tilt maneuver
- Where
- United States
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- US Department of Veterans Affairs
Androgen Deprivation Therapy, Prostate Cancer
Contributions to Hypertension With Androgen Deprivation Therapy
This study plans to learn more about contributors to high blood pressure in men who undergo androgen deprivation therapy (ADT) to treat prostate cancer.
- Conditions
- Androgen Deprivation Therapy, Prostate Cancer, Hypertension, Autonomic Dysfunction
- Trial name
- ARCH (NCT05700903)
- Testing
- Gonadotropin Releasing Hormone Agonists (GNRH), Androgen receptor (AR) inhibitor
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Denver
Spinal Cord Injury, Autonomic Dysreflexia
Treatment of Post-SCI Hypotension
While treatment strategies for OH have been identified for use in persons with acute SCI, the field of SCI medicine lacks a gold standard for treatment thresholds and well-defined outcome parameters.
- Conditions
- Spinal Cord Injury, Autonomic Dysreflexia, Orthostatic Hypotension, Baroreceptor Integrity
- Trial name
- NCT02919917
- Testing
- Midodrine Hydrochloride
- Where
- 2 sites in United States
- Volunteers
- 66 people, healthy volunteers welcome
- Sponsor
- James J. Peters Veterans Affairs Medical Center
Postural Tachycardia Syndrome, Ehlers-Danlos Syndrome
Standing Cognition and Co-morbidities of POTS Evaluation
The purpose of this study is to evaluate cognition in patients with postural tachycardia syndrome (POTS) while lying down and standing and to assess the prevalence of hypermobile Ehlers-Danlos Syndrome in POTS.
- Trial name
- SCOPE (NCT03602482)
- Testing
- Standing, Supine
- Where
- United States
- Volunteers
- 139 people, healthy volunteers welcome
- Sponsor
- Milton S. Hershey Medical Center