Clinical trials: Orthostatic Intolerance
Orthostatic Hypotension
Tilt-Table Study of the Clinical Efficacy of Midodrine in Symptomatic Orthostatic Hypotension
The purpose of this study is to determine whether midodrine works against the symptoms of orthostatic hypotension caused by being on a tilt table.
- Trial name
- NCT01518946
- Testing
- Midodrine HCl
- Where
- 13 sites in United States
- Volunteers
- 24 people
- Sponsor
- Shire
Spinal Cord Injuries, Spinal Cord Diseases
Spinal Cord Transcutaneous Stimulation Effect on Blood Pressure in Acute Spinal Cord Injury (SCI)
The goal of this clinical trial is to evaluate the effect of transcutaneous spinal cord stimulation on blood pressure in individuals with an acute spinal cord injury (within 30 days of injury).
- Conditions
- Spinal Cord Injuries, Spinal Cord Diseases, Trauma, Nervous System, Nervous System Diseases
- Trial name
- SCI (NCT05731986)
- Testing
- Orthostatic challenge, Biostim-5 transcutaneous spinal stimulation - Mapping, Biostim-5 transcutaneous spinal stimulation - "Optimal" testing
- Where
- United States
- Volunteers
- 12 people
- Sponsor
- Kessler Foundation
Hypotension, Orthostatic, Total Hip Replacement
Study on Baroreceptor Function in Relation to Orthostatic Blood Pressure Regulation After Hip Surgery
The purpose of this observational study is to evaluate the baroreceptor function in relation to surgical inflammation and orthostatic intolerance after elective hip arthroplasty.
- Trial name
- NCT01866787
- Where
- Denmark
- Volunteers
- 30 people
- Sponsor
- Copenhagen University Hospital, Rigshospitalet
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
Orthostatic Hypotension
Spinal Cord Stimulation for Orthostatic Hypotension
This is a prospective single-center randomized crossover control study that aims to evaluate the effects of non-invasive transcutaneous spinal cord stimulation in patients with known or suspected orthostatic hypotension.
- Trial name
- NCT05230147
- Testing
- Spinal cord stimulation
- Where
- Russia
- Volunteers
- 20 people
- Sponsor
- Federal State Budgetary Institution, V. A. Almazov Federal North-West Medical Research Centre, of the Ministry of Health
Tachycardia, Postural Orthostatic Tachycardia Syndrome
Pathophysiology of Orthostatic Intolerance
The purpose of this study is to describe the mechanism of orthostatic intolerance, relying on cardiovascular physiological studies.
- Trial name
- NCT00608725
- Testing
- DAXOR, QSweat, Intrinsic Heart Rate
- Where
- United States
- Volunteers
- 260 people, healthy volunteers welcome
- Sponsor
- Satish R. Raj
Syncope, Vasovagal
Preventing Post-Vaccination Presyncope and Syncope in Adolescents Using Simple, Clinic-based Interventions: A Pilot Study
This is a randomized controlled open-label trial. During the study, adolescents scheduled to receive at least one intramuscular (IM) vaccine will receive either Buzzy®, Music, or Buzzy® and Music intervention(s) in addition to…
- Trial name
- NCT03533829
- Testing
- Buzzy®, Music
- Where
- 2 sites in United States
- Volunteers
- 30 people
- Sponsor
- Duke University
Vitamin D Deficiency, Orthostatic Intolerance
Vitamin D Deficiency and Dysautonomia
In previous work the investigator identified a group of children between the ages of 10-18 years whose diagnostic workup for chronic nausea unexplained by conventional diagnostic tests has unexpectedly revealed underlying…
- Conditions
- Vitamin D Deficiency, Orthostatic Intolerance, Nausea
- Trial name
- NCT03032328
- Testing
- vitamin D supplement
- Where
- United States
- Volunteers
- 31 people, healthy volunteers welcome
- Sponsor
- Wake Forest University Health Sciences
Postural Tachycardia Syndrome
Assessment of Vascular Endothelial Function in Postural Tachycardia Syndrome
The purpose of this study is to see if people with Postural Tachycardia Syndrome (POTS) have different levels of certain chemicals in their blood than people who don't have POTS.
- Trial name
- NCT01308099
- Testing
- Blood Pressure and Blood Flow
- Where
- 2 sites in United States
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University Medical Center
Parkinson Disease, Orthostatic Hypotension
Effect of Levodopa on Cardiovascular Autonomic Function in Parkinson's Disease
Levodopa is a precursor of dopamine and is the treatment of choice to treat the motor symptoms of Parkinson's disease (PD); however, the effect of levodopa on cardiovascular autonomic function in PD is poorly understood.
- Trial name
- NCT05487300
- Testing
- Autonomic testing on and off levodopa
- Where
- United States
- Volunteers
- 40 people
- Sponsor
- University of Utah
Dysautonomia, Anxiety
Implementation of Transdx Group for POTS
The proposed intervention is focused on developing and implementing a psychological approach incorporated into a group-based outpatient intervention for pediatric autonomic dysfunction.
- Conditions
- Dysautonomia, Anxiety, Depression
- Trial name
- NCT03185247
- Testing
- Transdiagnostic Group-Based Treatment
- Where
- United States
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Denver
Migraine
The Identification and Characterization of Autonomic Dysfunction in Migraineurs With and Without Auras
This is a study to compare subject response and symptoms resulting from administration of three clinical assessments. The 3 assessments are 1. passive upright tilt table testing, 2.
- Trial name
- NCT01080287
- Where
- United States
- Volunteers
- 60 people
- Sponsor
- The Cleveland Clinic
Encephalomyelitis, Myalgic, Chronic Fatigue Syndrome
Effect of Stellate Ganglion Block on ME/CFS
The goal of this clinical trial is to study the effects of stellate ganglion block (SGB) in participants with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS).
- Conditions
- Encephalomyelitis, Myalgic, Chronic Fatigue Syndrome, Chronic Fatigue Disorder, Chronic Fatigue and Immune Dysfunction Syndrome
- Trial name
- SGB_ME (NCT05664711)
- Testing
- Bupivacaine Injection
- Where
- United States
- Volunteers
- 10 people
- Sponsor
- Neuroversion, Inc.
Vasovagal Syncope (VVS), Syncope
A Proof of Principle Study of Ondansetron for the Prevention of Vasovagal Syncope: The Eleventh Prevention of Syncope Trial (POST11)
About 20% of adults faint recurrently. These patients are often highly symptomatic, have problems with employment and driving, can be injured, and have poor quality of life.
- Trial name
- POST 11 (NCT05755737)
- Testing
- Ondansetron
- Where
- Canada
- Volunteers
- 70 people
- Sponsor
- University of Calgary
Vasovagal Syncope
Assessment of Metoprolol in the Prevention of Vasovagal Syncope in Aging Subjects
Syncope affects about 50% of Canadians, is the cause of 1-2% of emergency room visits, and probably is responsible for CDN $250 million in health care spending each year.
- Trial name
- NCT02123056
- Testing
- Metoprolol
- Where
- 2 sites in Canada
- Volunteers
- 52 people
- Sponsor
- University of Calgary
POTS - Postural Orthostatic Tachycardia Syndrome
The Effect of Physical Activity on Postural Orthostatic Tachycardia Syndrome
Postural orthostatic tachycardia syndrome (POTS) is a disorder of unknown origin characterized by orthostatic intolerance and increased heart rate (HR) of ≥ 30 beats/minute during orthostasis in the absence of orthostatic…
- Trial name
- POTS (NCT05554107)
- Testing
- Training program
- Where
- Sweden
- Volunteers
- 200 people
- Sponsor
- Lund University
Clonal Mast Cell Disease, KIT D816V Mutation
Screening Study for KIT D816V Mutated Mast Cell Disease in Select Populations
This is a multicenter screening study to characterize the prevalence of the KIT D816V mutation in participants with suspected clonal mast cell disease.
- Conditions
- Clonal Mast Cell Disease, KIT D816V Mutation, Suspected KITD816V Mutated Clonal Mast Cell Disease
- Trial name
- POLARIS (NCT07143669)
- Testing
- Screening
- Where
- 26 sites in United States, Belgium
- Volunteers
- 750 people
- Sponsor
- Blueprint Medicines Corporation
Postural Orthostatic Tachycardia Syndrome (POTS), POTS
Cardiovagal Baroreflex Deficits Impair Neurovascular Coupling and Cognition in POTS
Postural tachycardia syndrome (POTS), is the chronic form of orthostatic intolerance associated with excessive upright tachycardia, and occurs predominantly in young females (>85%).
- Conditions
- Postural Orthostatic Tachycardia Syndrome (POTS), POTS, Orthostatic Intolerance
- Trial name
- NCT03261570
- Testing
- Pyridostigmine, Digoxin
- Where
- United States
- Volunteers
- 51 people, healthy volunteers welcome
- Sponsor
- New York Medical College
Orthostatic Hypotension, Heart Rate
Effects of Breathing Retraining Exercises in Pregnant Females With Postural Orthostatic Tachycardia Syndrome.
Postural orthostatic tachycardia POTS is characterized by excessive increase in heart rate when moving from lying to standing position, often accompanied by symptoms such as dizziness, fatigue, brain fog, lightheadedness, rapid…
- Conditions
- Orthostatic Hypotension, Heart Rate, Blood Pressure
- Trial name
- NCT07579026
- Testing
- diaphragmatic breathing exercise, educational retraining
- Where
- Pakistan
- Volunteers
- 44 people
- Sponsor
- Riphah International University
Chronic Fatigue Syndrome, Orthostatic Hypotension
Study To Assess The Clinical Benefit Of Droxidopa In Subjects With Chronic Fatigue Syndrome
A subset of patients suffering from chronic fatigue syndrome exhibit symptoms of neurally mediated hypotension. While the underlying pathophysiology of chronic fatigue syndrome is not precisely understood, a dysfunction of the…
- Conditions
- Chronic Fatigue Syndrome, Orthostatic Hypotension, Neurally Mediated Hypotension, Neurogenic Orthostatic Hypotension
- Trial name
- CFS201 (NCT00977171)
- Testing
- Droxidopa
- Where
- United States
- Volunteers
- 3 people
- Sponsor
- Chelsea Therapeutics