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ClinicalTrials.gov public records Last synced Oct 21, 2026, 4:04 AM EDT

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Showing 241–264 of 504 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Dysautonomia Clear all
Terminated Not applicable Interventional Accepts healthy volunteers

Dopamine in Orthostatic Tolerance

NCT00748228
View directory record Official record
Conditions
Postural Tachycardia Syndrome
Interventions
dietary sodium
Dietary Supplement
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 60 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2012
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 15, 2015 · Synced Oct 21, 2026, 4:04 AM EDT
Completed Phase 2 Interventional Results available

AZD3241 PET MSA Trial, Phase 2, Randomized,12 Week Safety and Tolerability Trial With PET in MSA Patients

NCT02388295
View directory record Official record
Conditions
Multiple System Atrophy, MSA
Interventions
AZD3241, Placebo
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
30 Years to 80 Years
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
8
States / cities
Stanford, California • New Haven, Connecticut • Tampa, Florida + 4 more
Source: ClinicalTrials.gov public record
Updated Sep 25, 2017 · Synced Oct 21, 2026, 4:04 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Does a Periaqueductal Gray-vagus Nerve Interface Malfunction Explain the Nat hx With Its Numerous Co-morbidities?

NCT06616363
View directory record Official record
Conditions
POTS - Postural Orthostatic Tachycardia Syndrome
Interventions
Questionnaires to be competed, Provide list of medication and lifetime events, Use phone App to record new life events, Will wear an activity monitor, Periodic 24-hour urine sodium check, A fMRI scan, A bedside tilt test will be performed, IV placed to collect blood samples, Stool Sample
Behavioral · Device · Other + 1 more
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
12 Years to 21 Years · Female only
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Sep 29, 2026 · Synced Oct 21, 2026, 4:04 AM EDT
Terminated No phase listed Observational

Clinical Autonomic Disorders: A Training Protocol

NCT02154009
View directory record Official record
Conditions
Posttraumatic Stress Disorder, Pseudopheochromocytoma, Healthy Volunteers, Neurocardiogenic Syncope, Postural Tachycardia Syndrome
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
2 Years and older
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2021
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 8, 2021 · Synced Oct 21, 2026, 4:04 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Evaluation of Chronic Orthostatic Intolerance

NCT00069693
View directory record Official record
Conditions
Syncope
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
10 Years and older
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2008
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Oct 21, 2026, 4:04 AM EDT
Recruiting Early Phase 1 Interventional Accepts healthy volunteers

Evaluation of [¹⁸F]MODAG-009 PET Imaging in Synucleinopathies

NCT07640555
View directory record Official record
Conditions
Multiple System Atrophy (MSA), Healthy Adult, Parkinson Disease
Interventions
[¹⁸F]MODAG-009 PET imaging
Drug
Lead sponsor
MODAG GmbH
Industry
Eligibility
50 Years to 80 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 10, 2026 · Synced Oct 21, 2026, 4:04 AM 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 5, 2022 · Synced Oct 21, 2026, 4:04 AM EDT
Active, not recruiting No phase listed Observational

Automated Imaging Differentiation of Parkinsonism

NCT05913687
View directory record Official record
Conditions
Parkinson Disease, Multiple System Atrophy, Parkinson Variant, Progressive Supranuclear Palsy
Interventions
AIDP
Diagnostic Test
Lead sponsor
University of Florida
Other
Eligibility
40 Years to 80 Years
Enrollment
315 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
19
States / cities
Birmingham, Alabama • La Jolla, California • San Francisco, California + 15 more
Source: ClinicalTrials.gov public record
Updated Jul 31, 2026 · Synced Oct 21, 2026, 4:04 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Assessment of Vascular Endothelial Function in Postural Tachycardia Syndrome

NCT01308099
View directory record Official record
Conditions
Postural Tachycardia Syndrome
Interventions
Blood Pressure and Blood Flow
Device
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 60 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2017
U.S. locations
2
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 18, 2017 · Synced Oct 21, 2026, 4:04 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Mechanisms of Vasovagal Syncope

NCT01791816
View directory record Official record
Conditions
Vasovagal Syncope, Postural Tachycardia Syndrome
Interventions
Phenylephrine, L-Ng-monomethyl Arginine (L-NMMA)
Drug
Lead sponsor
New York Medical College
Other
Eligibility
14 Years to 29 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2022
U.S. locations
1
States / cities
Hawthorne, New York
Source: ClinicalTrials.gov public record
Updated May 23, 2025 · Synced Oct 21, 2026, 4:04 AM EDT
Terminated Early Phase 1 Interventional

Water and Sudafed in Autonomic Failure

NCT02149901
View directory record Official record
Conditions
Shy-Drager Syndrome, Multiple System Atrophy
Interventions
Pseudoephedrine + 480 ml water, Pseudoephedrine + 50 ml water, Placebo + 480 ml water (optional), Placebo + 50 ml water (optional)
Drug · Other
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 80 Years
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 5, 2021 · Synced Oct 21, 2026, 4:04 AM EDT
Completed Phase 2 Interventional Results available

The Effect of CPC on Aborting Tilt Induced Syncope in Patients With a History of Vasovagal Syncope or Near Syncope

NCT04972123
View directory record Official record
Conditions
Syncope, Vasovagal
Interventions
CPC - Capsaicin, Phenylephrine, Caffeine, Tilt Table Test, Placebo
Drug · Diagnostic Test
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 50 Years
Enrollment
143 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jul 17, 2024 · Synced Oct 21, 2026, 4:04 AM EDT
Completed Phase 4 Interventional

A Study Of Lidocaine Patch 5% Alone, Gabapentin Alone, And Lidocaine Patch 5% And Gabapentin In Combination For The Relief Of Pain In Patients With Diverse Peripheral Neuropathic Pain Conditions

NCT00904202
View directory record Official record
Conditions
Postherpetic Neuralgia, Diabetic Neuropathy, Complex Regional Pain Syndrome, Carpal Tunnel Syndrome, HIV Neuropathy, Idiopathic Sensory Neuropathy, Peripheral Neuropathy
Interventions
Placebo Capsules + Placebo Patch, Placebo capsules + Lidoderm®, Gabapentin + Placebo, Gabapentin + Lidoderm®, Gabapentin 300 mg capsules 1800 mg/day + placebo patch, Gabapentin 1800 mg/day + Lidoderm patch
Drug
Lead sponsor
Endo USA Inc., a Keenova Therapeutics Company
Industry
Eligibility
18 Years and older
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2003
U.S. locations
7
States / cities
Birmingham, Alabama • Hueytown, Alabama • Phoenix, Arizona + 4 more
Source: ClinicalTrials.gov public record
Updated Jan 2, 2024 · Synced Oct 21, 2026, 4:04 AM EDT
Completed Not applicable Interventional

A Shared Medical Appointment Intervention for Quality of Life Improvement in POTS

NCT05454137
View directory record Official record
Conditions
Postural Orthostatic Tachycardia Syndrome
Interventions
Shared medical appointment
Behavioral
Lead sponsor
University of Arizona
Other
Eligibility
21 Years to 79 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Mar 5, 2025 · Synced Oct 21, 2026, 4:04 AM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Autonomic and Renal Contributions to Hypertension With ADT

NCT07848828
View directory record Official record
Conditions
Androgen Deprivation Therapy, Prostate Cancer, Hypertension, Autonomic Dysfunction, Renal Disease
Interventions
Gonadotropin Releasing Hormone Agonists (GNRH), Androgen receptor (AR) inhibitor, Placebo
Drug
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
40 Years and older · Male only
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2030
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Sep 30, 2026 · Synced Oct 21, 2026, 4:04 AM EDT
Completed Not applicable Interventional Results available

Aveir DR i2i Study

NCT05252702
View directory record Official record
Conditions
Cardiac Pacemaker, Artificial, Cardiac Rhythm Disorder, Bradycardia
Interventions
Aveir DR Leadless Pacemaker System
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
464 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
54
States / cities
Scottsdale, Arizona • Jonesboro, Arkansas • Little Rock, Arkansas + 44 more
Source: ClinicalTrials.gov public record
Updated May 27, 2026 · Synced Oct 21, 2026, 4:04 AM EDT
Enrolling by invitation No phase listed Observational

Clinico-Pathologic-Genetic-Imaging Study of Neurodegenerative and Related Disorders

NCT04680130
View directory record Official record
Conditions
PSP, CBD, PCA, LPA, Semantic Dementia, Semantic Aphasia, Behavioral Variant of Frontotemporal Dementia, FTD, PPA, Apraxia of Speech, MSA - Multiple System Atrophy, Parkinson Disease
Interventions
C-11 PiB, AV1451 Tau, C-11 ER176
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
21 Years and older
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2050
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 21, 2025 · Synced Oct 21, 2026, 4:04 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Biomarkers in Neural Disorders

NCT02761707
View directory record Official record
Conditions
Parkinson's Disease, Alzheimer's Disease, Progressive Supranuclear Palsy, Essential Tremor, Multiple System Atrophy, Drug Induced Parkinson's Disease, Diffuse Lewy Body Disease, Myasthenia Gravis, Spinal Cord Injuries
Interventions
Electrical Brainstem Responses, Olfactory Tests, Visual Deprivation, Peripheral Nerve Stimulation
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 80 Years
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 18, 2019 · Synced Oct 21, 2026, 4:04 AM EDT
Recruiting Not applicable Interventional

VCOM Pain Free Research Collaborative

NCT06533345
View directory record Official record
Conditions
Chronic Pain
Interventions
Behavior Change Coaching, Nutrition, Autonomic Recalibration, Dry Needling, Osteopathic Manipulative Treatment, Counseling Psychology, Multiple Treatments
Behavioral · Other · Procedure
Lead sponsor
Edward Via Virginia College of Osteopathic Medicine
Other
Eligibility
21 Years to 80 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Auburn, Alabama
Source: ClinicalTrials.gov public record
Updated Feb 20, 2026 · Synced Oct 21, 2026, 4:04 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Hypnosis in Autonomic Function

NCT00061009
View directory record Official record
Conditions
Vasovagal Syncope, Postural Tachycardia Syndrome, Hypnosis
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
Not listed
Enrollment
93 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2006
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 21, 2026, 4:04 AM EDT
Completed Phase 1Phase 2 Interventional Results available

NORTHERA (DROXIDOPA) for Dysautonomia in Adult Survivors of Menkes Disease and Occipital Horn Syndrome

NCT04977388
View directory record Official record
Conditions
Menkes Disease, Occipital Horn Syndrome
Interventions
Droxidopa, Placebo
Drug · Other
Lead sponsor
Stephen G. Kaler, MD
Other
Eligibility
18 Years to 50 Years
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 13, 2026 · Synced Oct 21, 2026, 4:04 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

The Renin-Aldosterone Axis in Postural Tachycardia Syndrome

NCT00962949
View directory record Official record
Conditions
Postural Orthostatic Tachycardia Syndrome (POTS)
Interventions
Angiotensin II
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 64 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 16, 2025 · Synced Oct 21, 2026, 4:04 AM EDT
Completed Not applicable Interventional

Proprioception and Sensorimotor Control in Hereditary Sensory and Autonomic Neuropathy

NCT02876939
View directory record Official record
Conditions
Atunomic Neuropathy
Interventions
kinesiology tape around the hip, knee and ankle joints, No kinesiology tape around the hip, knee and ankle joints
Other
Lead sponsor
NYU Langone Health
Other
Eligibility
16 Years to 40 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 22, 2020 · Synced Oct 21, 2026, 4:04 AM EDT
Completed Phase 1 Interventional

Hemodynamic Mechanisms of Abdominal Compression in the Treatment of Orthostatic Hypotension in Autonomic Failure

NCT02429557
View directory record Official record
Conditions
Orthostatic Hypotension, Pure Autonomic Failure, Multiple System Atrophy, Autonomic Failure
Interventions
Abdominal compression, Sham abdominal compression, Placebo pill, midodrine
Other · Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 80 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2025
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Oct 21, 2026, 4:04 AM EDT