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ClinicalTrials.gov public records Last synced Sep 16, 2026, 7:58 PM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Recruiting Not applicable Interventional

The Effect of Transcutaneous Stimulation on Blood Pressure in Spinal Cord Injury (SCI)

NCT05725499
View directory record Official record
Conditions
Spinal Cord Injuries, Hypotension, Orthostatic Hypotension, Spinal Cord Diseases, Cardiovascular Diseases, Trauma, Nervous System, Central Nervous System Diseases, Nervous System Diseases, Blood Pressure
Interventions
Biostim-5 transcutaneous spinal stimulator, Tilt-table orthostatic stress testing
Device · Diagnostic Test
Lead sponsor
Kessler Foundation
Other
Eligibility
18 Years to 75 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
West Orange, New Jersey
Source: ClinicalTrials.gov public record
Updated Sep 1, 2025 · Synced Sep 16, 2026, 7:58 PM EDT
Terminated Phase 1Phase 2 Interventional Results available

Hemodynamic Response of Neuropathic And Non-Neuropathic POTS Patients To Adrenoreceptor Agonist And Antagonist

NCT03070730
View directory record Official record
Conditions
Postural Orthostatic Tachycardia Syndrome, Orthostatic Intolerance
Interventions
Droxidopa, Atenolol, Placebos
Drug
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 55 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 17, 2017 · Synced Sep 16, 2026, 7:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

A Study of Blood Pressure and Blood Supply to the Brain in Persons With a Spinal Cord Injury.

NCT00248807
View directory record Official record
Conditions
Orthostatic Hypotension, Spinal Cord Injuries
Interventions
1.25 mg enalaprilat IV, Head up tilt (HUT)
Drug · Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2012
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Feb 24, 2025 · Synced Sep 16, 2026, 7:58 PM EDT
Completed Phase 3 Interventional Results available

A Clinical Study for Patients With Neurogenic Orthostatic Hypotension (NOH) Using Droxidopa

NCT00782340
View directory record Official record
Conditions
Symptomatic Neurogenic Orthostatic Hypotension (NOH), Non-diabetic Neuropathy, Primary Autonomic Failure, Dopamine Beta Hydroxylase Deficiency
Interventions
Placebo, Droxidopa
Drug
Lead sponsor
Chelsea Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
263 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
14
States / cities
Huntsville, Alabama • Scottsdale, Arizona • Little Rock, Arkansas + 11 more
Source: ClinicalTrials.gov public record
Updated May 15, 2014 · Synced Sep 16, 2026, 7:58 PM EDT
Completed Early Phase 1 Interventional

Influence of Yoga in Patients With Neurocardiogenic Syncope

NCT01695525
View directory record Official record
Conditions
Syncope, Vasovagal
Interventions
Yoga
Other
Lead sponsor
Dhanunjaya Lakkireddy, MD, FACC
Other
Eligibility
18 Years to 60 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Jun 29, 2015 · Synced Sep 16, 2026, 7:58 PM EDT
Completed Phase 4 Interventional Results available

Tilt-Table Study of the Clinical Efficacy of Midodrine in Symptomatic Orthostatic Hypotension

NCT01518946
View directory record Official record
Conditions
Orthostatic Hypotension
Interventions
Midodrine HCl, Placebo
Drug
Lead sponsor
Shire
Industry
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
13
States / cities
Boca Raton, Florida • New Port Richey, Florida • Lenexa, Kansas + 9 more
Source: ClinicalTrials.gov public record
Updated Jun 7, 2021 · Synced Sep 16, 2026, 7:58 PM EDT
Withdrawn Not applicable Interventional

Controlling Orthostatic Hypotension in People with Cervical Spinal Cord Injury

NCT04369131
View directory record Official record
Conditions
Spinal Cord Injury Cervical, Hypotension, Orthostatic
Interventions
Functional electrical stimulation
Device
Lead sponsor
Quality Living, Inc.
Other
Eligibility
19 Years to 70 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Oct 16, 2024 · Synced Sep 16, 2026, 7:58 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Long COVID Immune Profiling

NCT06027255
View directory record Official record
Conditions
Long COVID, POTS - Postural Orthostatic Tachycardia Syndrome, Autonomic Dysfunction
Interventions
IL-6, cytokines (IL-17, and IFN-ɣ), Compass 31
Diagnostic Test · Behavioral
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jul 14, 2026 · Synced Sep 16, 2026, 7:58 PM EDT
Completed Not applicable Interventional

Abdominal and Lower Extremity Compression During Tilt Table Testing in Adolescent POTS Patients

NCT01795469
View directory record Official record
Conditions
Postural Orthostatic Tachycardia Syndrome (POTS), Syncope
Interventions
Zoex compression garment
Device
Lead sponsor
Nationwide Children's Hospital
Other
Eligibility
12 Years to 19 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 30, 2017 · Synced Sep 16, 2026, 7:58 PM EDT
Completed No phase listed Observational

Data Collection - Of Syncope Tilt Table Testing Study

NCT03721393
View directory record Official record
Conditions
Orthostatic Hypotension, Reflex Syncope
Interventions
Wearable heart monitor
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 1, 2023 · Synced Sep 16, 2026, 7:58 PM EDT
Active, not recruiting Phase 1 Interventional

Vagal Stimulation in POTS

NCT03124355
View directory record Official record
Conditions
Postural Tachycardia Syndrome
Interventions
placebo sugar pill, Pyridostigmine Pill, Galantamine Pill, Vagal stimulation, Sham vagal stimulation
Drug · Device
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2027
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jul 12, 2026 · Synced Sep 16, 2026, 7:58 PM EDT
Completed Not applicable Interventional Results available

Transcutaneous Stimulation in Spinal Cord Injury

NCT05180227
View directory record Official record
Conditions
Spinal Cord Injury
Interventions
DS8R
Device
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Sep 21, 2025 · Synced Sep 16, 2026, 7:58 PM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

Autoimmune Basis for Postural Tachycardia Syndrome

NCT02725060
View directory record Official record
Conditions
Postural Orthostatic Tachycardia Syndrome, Postural Tachycardia Syndrome, Tachycardia, Arrhythmias, Cardiac, Autonomic Nervous System Diseases, Orthostatic Intolerance, Cardiovascular Diseases, Primary Dysautonomias
Interventions
phenylephrine, isoproterenol, 25 micro-Ci of radiation, Posture study with blood samples, 24-hour heart rhythm and blood pressure monitoring, Quantitative Axonal Sudomotor Reflex Testing, Autonomic function tests, Rebreathing test, Assessment of splanchnic capacitance, microneurography
Drug · Radiation · Procedure + 1 more
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 50 Years
Enrollment
58 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2026
U.S. locations
2
States / cities
Oklahoma City, Oklahoma • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Nov 11, 2025 · Synced Sep 16, 2026, 7:58 PM EDT
Recruiting No phase listed Observational

Fainting Detection And Early Warning In Syncope Evaluation Study (ARISE)

NCT07502599
View directory record Official record
Conditions
Orthostatic Hypotension, Reflex Syncope
Interventions
Wearable holter monitor
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 8, 2026 · Synced Sep 16, 2026, 7:58 PM EDT
Completed Phase 2 Interventional

Propranolol to Treat Fainting in Children With Sympathoadrenal Imbalance

NCT00093860
View directory record Official record
Conditions
Syncope
Interventions
Propranolol
Drug
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
Not listed
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 16, 2026, 7:58 PM EDT
Completed Phase 2Phase 3 Interventional Results available

Evaluating the Effectiveness of Intravenous Immunoglobulin Therapy in Autoimmune Autonomic Ganglionopathy

NCT01522235
View directory record Official record
Conditions
Autoimmune Autonomic Ganglionopathy (AAG)
Interventions
Double blinded IVIg, Double blinded Placebo, Single Blinded IVIg
Drug · Other
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 85 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
6
States / cities
Bethesda, Maryland • Boston, Massachusetts • Rochester, Minnesota + 3 more
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 16, 2026, 7:58 PM EDT
Completed Phase 1 Interventional

Treatment of Orthostatic Hypotension in Autonomic Failure

NCT00223691
View directory record Official record
Conditions
Autonomic Failure, Orthostatic Hypotension
Interventions
Atomoxetine, Acarbose, Pyridostigmine Bromide, Yohimbine, Midodrine HCl, placebo, Modafinil, Octreotide, water intake, Diphenhydramine Hydrochloride, Ranitidine HCL, Tranylcypromine, Ergotamine/ Caffeine, Celecoxib, Pseudoephedrine, Methylphenidate, Indomethacin, Ibuprofen, Oxymetazoline 0.05% nasal solution, Bovril, Acetazolamide, Rivastigmine tartrate, Carbidopa/levodopa, Inflatable abdominal binder, inflatable abdominal binder (sham)
Drug · Other · Dietary Supplement + 1 more
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 85 Years
Enrollment
389 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2017
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 17, 2017 · Synced Sep 16, 2026, 7:58 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

fMRI in Postural Tachycardia Syndrome

NCT04137757
View directory record Official record
Conditions
Postural Tachycardia Syndrome
Interventions
Lower Body Negative Pressure, Sham Pressure
Other
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
18 Years to 60 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 18, 2025 · Synced Sep 16, 2026, 7:58 PM EDT
Recruiting Phase 2 Interventional

Restoring Iron Deficiency in POTS

NCT07197905
View directory record Official record
Conditions
POTS - Postural Orthostatic Tachycardia Syndrome
Interventions
Intravenous iron
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 10, 2025 · Synced Sep 16, 2026, 7:58 PM EDT
Recruiting No phase listed Observational

Cardioneuroablation for Recurrent Vasovagal Syncope and Bradyarrhythmias: The CNA-FWRD Registry

NCT06166277
View directory record Official record
Conditions
Vasovagal Syncope, AV Block-2Nd Degree-Type 1, Sinus Pause
Interventions
Ablation procedure
Procedure
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years to 60 Years
Enrollment
300 participants
Timeline
2024 – 2027
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 17, 2025 · Synced Sep 16, 2026, 7:58 PM EDT
Active, not recruiting Not applicable Interventional

Intravenous (IV) Saline and Exercise in Postural Tachycardia Syndrome (POTS)

NCT01000350
View directory record Official record
Conditions
Postural Tachycardia Syndrome
Interventions
Saline, Placebo
Drug · Other
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2028
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Oct 7, 2025 · Synced Sep 16, 2026, 7:58 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Effect of Sex on Orthostatic Intolerance and Cardiovascular Response During Lunar Descent and Ascent

NCT06467825
View directory record Official record
Conditions
Healthy
Interventions
Potassium Supplement, Furosemide 20 MG, Compression Garment
Drug · Device
Lead sponsor
National Aeronautics and Space Administration (NASA)
Federal
Eligibility
25 Years to 55 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 31, 2025 · Synced Sep 16, 2026, 7:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect of Dietary Sodium Intake on Vascular Endothelium

NCT01550315
View directory record Official record
Conditions
Postural Tachycardia Syndrome (POTS)
Interventions
Pulsitile Arterial Tonometry (PAT) Protocol, Calf Blood Flow in Reactive Hyperemia (CBF-RH), Evaluation of Forearm-Mediated Dilation
Procedure · Device
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 60 Years
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2021
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 4, 2022 · Synced Sep 16, 2026, 7:58 PM EDT
Completed Not applicable Interventional Results available

Local Heat Stress in Autonomic Failure Patients With Supine Hypertension

NCT02417415
View directory record Official record
Conditions
Hypertension, Pure Autonomic Failure, Multiple System Atrophy, Autonomic Failure
Interventions
Passive heat stress, Control (non-heating)
Other
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 80 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 9, 2022 · Synced Sep 16, 2026, 7:58 PM EDT