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ClinicalTrials.gov public records Last synced Oct 21, 2026, 8:44 AM EDT

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Showing 241–264 of 519 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Autonomic Dysfunction Clear all
Completed Phase 4 Interventional

Propranolol to Treat Fainting Due to Sympathoadrenal Imbalance

NCT00060866
View directory record Official record
Conditions
Neurocardiogenic Syncope
Interventions
Propranolol
Drug
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
Not listed
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2005
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 21, 2026, 8:44 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Cerebral Blood Flow Evaluation With Trancranial Doppler After Interscalene Nerve Block

NCT04642612
View directory record Official record
Conditions
Regional Anesthesia, Horner Syndrome, Cerebral Blood Flow
Interventions
TCD Measurement
Device
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 85 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Sep 16, 2021 · Synced Oct 21, 2026, 8:44 AM EDT
Completed No phase listed Observational Results available

RAAS and Arterial Stiffness in SCI

NCT04510974
View directory record Official record
Conditions
Arterial Stiffness, Renin Angiotensin Aldosterone System, Orthostatic Hypotension, Spinal Cord Injury, Hypotension
Interventions
Spinal Cord Injury
Other
Lead sponsor
James J. Peters Veterans Affairs Medical Center
Federal
Eligibility
21 Years to 70 Years
Enrollment
33 participants
Timeline
2018 – 2020
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Feb 20, 2025 · Synced Oct 21, 2026, 8:44 AM EDT
Completed Phase 3 Interventional Results available

A Two Part Study (306A/306B) to Assess Droxidopa in Treatment of NOH in Patients With Parkinson's Disease

NCT01176240
View directory record Official record
Conditions
Orthostatic Hypotension, Parkinson's Disease
Interventions
Droxidopa, Placebo
Drug · Other
Lead sponsor
Chelsea Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
225 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
60
States / cities
Alabaster, Alabama • Gilbert, Arizona • Phoenix, Arizona + 53 more
Source: ClinicalTrials.gov public record
Updated May 20, 2014 · Synced Oct 21, 2026, 8:44 AM EDT
Completed Not applicable Interventional

Interval Training and Parkinson's Disease

NCT06606743
View directory record Official record
Conditions
Other Disorders of Autonomic Nervous System
Interventions
High-Intensity Interval Training, High-Velocity Circuit Resistance Training
Behavioral
Lead sponsor
University of Miami
Other
Eligibility
30 Years to 90 Years
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
2
States / cities
Coral Gables, Florida
Source: ClinicalTrials.gov public record
Updated Aug 15, 2025 · Synced Oct 21, 2026, 8:44 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Pathophysiology of Orthostatic Intolerance

NCT00608725
View directory record Official record
Conditions
Tachycardia, Postural Orthostatic Tachycardia Syndrome
Interventions
DAXOR, QSweat, Intrinsic Heart Rate
Radiation · Procedure · Drug
Lead sponsor
Satish R. Raj
Other
Eligibility
18 Years to 80 Years
Enrollment
260 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1996 – 2029
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Oct 13, 2026 · Synced Oct 21, 2026, 8:44 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Orthostatic Hypotension Among Veterans

NCT02123303
View directory record Official record
Conditions
Hypotension, Orthostatic Hypotension
Interventions
Not listed
Lead sponsor
James J. Peters Veterans Affairs Medical Center
Federal
Eligibility
18 Years to 89 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2015
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Mar 1, 2019 · Synced Oct 21, 2026, 8:44 AM EDT
Completed Not applicable Interventional

A Novel Noninvasive Thermoregulatory Device for Postural Tachycardia Syndrome

NCT04943276
View directory record Official record
Conditions
Postural Tachycardia Syndrome
Interventions
Embr Device
Device
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Oct 8, 2024 · Synced Oct 21, 2026, 8:44 AM EDT
Completed Phase 1 Interventional

Dual Sympathetic Blocks for Patients Experiencing Sympathetically-Mediated Symptoms From Long COVID

NCT05638620
View directory record Official record
Conditions
Post Acute COVID-19 Syndrome, Long COVID, Long Covid19, COVID-19 Recurrent, Post-Acute COVID-19, Post-Acute COVID-19 Infection, SARS-CoV2 Infection, Post Acute Sequelae of COVID-19, Dysautonomia, Dysautonomia Like Disorder, Dysautonomia Orthostatic Hypotension Syndrome, Post COVID-19 Condition, Post-COVID Syndrome, Post COVID-19 Condition, Unspecified, Post-COVID-19 Syndrome
Interventions
stellate ganglion block with 0.5% bupivacaine
Drug
Lead sponsor
Jonathann Kuo, MD
Other
Eligibility
18 Years to 100 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 13, 2025 · Synced Oct 21, 2026, 8:44 AM EDT
Completed Not applicable Interventional

Effects of Spinal Cord Stimulation on Sensory Perceptions of Chronic Pain Patients

NCT02837822
View directory record Official record
Conditions
Chronic Pain, Complex Regional Pain Syndrome, Failed Back Surgery Syndrome
Interventions
Spinal cord stimulator, Implantation of a spinal cord stimulator
Device · Procedure
Lead sponsor
CHU de Quebec-Universite Laval
Other
Eligibility
18 Years and older
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Toledo, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 17, 2018 · Synced Oct 21, 2026, 8:44 AM EDT
Active, not recruiting Phase 1Phase 2 Interventional Accepts healthy volunteers

Treatment of Orthostatic Intolerance

NCT00262470
View directory record Official record
Conditions
Tachycardia, Chronic Orthostatic Intolerance
Interventions
Acetazolamide, Atomoxetine, NO Drug, Clonidine, Entacapone, Entacapone & Propranolol, Atomoxetine & Propranolol, Indomethacin, Mecamylamine, Isosorbide Dinitrate, Melatonin, Midodrine, Modafinil, Octreotide, Placebo, Propranolol, Modafinil & Propranolol, Sertraline, IV Saline, Drinking Water, Breathing Device, memantine, Abdominal binder
Drug · Other · Dietary Supplement + 3 more
Lead sponsor
Satish R. Raj
Other
Eligibility
18 Years to 70 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1997 – 2029
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Oct 16, 2026 · Synced Oct 21, 2026, 8:44 AM EDT
Active, not recruiting Early Phase 1 Interventional Accepts healthy volunteers

Histamine as a Molecular Transducer of Adaptation to Exercise

NCT05206227
View directory record Official record
Conditions
Postexercise Hypotension
Interventions
Aerobic Exercise, alpha-FMH, Resistance and Aerobic Exercise, Antihistamine
Behavioral · Drug
Lead sponsor
University of Oregon
Other
Eligibility
18 Years to 40 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
1
States / cities
Eugene, Oregon
Source: ClinicalTrials.gov public record
Updated Jan 23, 2026 · Synced Oct 21, 2026, 8:44 AM EDT
Terminated Early Phase 1 Interventional

Blood Pressure Lowering Effects of Angiotensin-(1-7) in Primary Autonomic Failure

NCT02591173
View directory record Official record
Conditions
Autonomic Nervous System Disorders, Pure Autonomic Failure, Shy-Drager Syndrome, Orthostatic Hypotension, Dysautonomic
Interventions
Angiotensin-(1-7), Saline
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 80 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 12, 2021 · Synced Oct 21, 2026, 8:44 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

The Autonomic Nervous System and Obesity

NCT00179023
View directory record Official record
Conditions
OBESITY, HYPERTENSION, PURE AUTONOMIC FAILURE, SHY-DRAGER SYNDROME
Interventions
Trimethaphan, Pseudoephedrine
Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 80 Years
Enrollment
128 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2017
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 1, 2018 · Synced Oct 21, 2026, 8:44 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Research Protocol for Karuna Labs Inc.: Safety and Efficacy of Virtual Reality Graded Motor Imagery for Chronic Pain

NCT04060875
View directory record Official record
Conditions
Chronic Pain, Low Back Pain, Fibromyalgia, Upper Extremity Dysfunction, Complex Regional Pain Syndromes, Phantom Limb Pain, Rheumatoid Arthritis, Carpal Tunnel Syndrome, Repetitive Strain Injury
Interventions
Karuna Labs Virtual Reality Software
Device
Lead sponsor
Karuna Labs Inc.
Industry
Eligibility
18 Years to 70 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 11, 2021 · Synced Oct 21, 2026, 8:44 AM EDT
Completed Phase 2 Interventional

Non-Pharmacologic Therapy for Neurocardiogenic Syncope

NCT00096902
View directory record Official record
Conditions
Syncope
Interventions
Tilt table test
Procedure
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
18 Years and older
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Oct 21, 2026, 8:44 AM EDT
Completed No phase listed Observational

EEG Characteristics in Youth POTS and/or Syncope

NCT02167412
View directory record Official record
Conditions
Syncope, Postural Tachycardia Syndrome, Orthostatic Intolerance
Interventions
Not listed
Lead sponsor
Nationwide Children's Hospital
Other
Eligibility
9 Years to 21 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 27, 2018 · Synced Oct 21, 2026, 8:44 AM EDT
Completed Phase 1Phase 2 Interventional

Automated Abdominal Binder for Orthostatic Hypotension

NCT03482297
View directory record Official record
Conditions
Orthostatic Hypotension, Autonomic Failure, Pure Autonomic Failure, Multiple System Atrophy
Interventions
automated abdominal binder, Sham binder, Placebo, Midodrine
Device · Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
40 Years to 80 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2025
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Oct 21, 2026, 8:44 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Intravenous Norepinephrine for Orthostatic Hypotension

NCT01285908
View directory record Official record
Conditions
Orthostatic Hypertension
Interventions
Intravenous Norepinephrine Infusion
Drug
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 10, 2014 · Synced Oct 21, 2026, 8:44 AM EDT
Active, not recruiting No phase listed Observational

Aveir VR Real-World Evidence Post-Approval Study

NCT05270499
View directory record Official record
Conditions
Cardiac Pacemaker, Arrythmia, Bradycardia
Interventions
Aveir VR Leadless Pacemaker System
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
3,427 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2034
U.S. locations
1
States / cities
Sylmar, California
Source: ClinicalTrials.gov public record
Updated May 20, 2026 · Synced Oct 21, 2026, 8:44 AM EDT
Completed No phase listed Observational

Head Circumference Growth in Children With Ehlers-Danlos Syndrome Who Develop Dysautonomia Later in Life

NCT01367977
View directory record Official record
Conditions
Ehlers Danlos Syndrome, External Hydrocephalus, Dysautonomia, Postural Orthostatic Tachycardia Syndrome, Venous Insufficiency
Interventions
Not listed
Lead sponsor
Genetic Disease Investigators
Other
Eligibility
5 Years and older
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
1
States / cities
Colleyville, Texas
Source: ClinicalTrials.gov public record
Updated Feb 14, 2024 · Synced Oct 21, 2026, 8:44 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Study to Evaluate a Potential PET Radioligand for Imaging Alpha-synuclein Deposits in the Brain

NCT06445465
View directory record Official record
Conditions
Alpha-Synucleinopathy, Parkinson's Disease, Dementia With Lewy Bodies, Multisystem Atrophy
Interventions
[18F]MNI-1216
Drug
Lead sponsor
Invicro
Other
Eligibility
21 Years and older
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Feb 19, 2025 · Synced Oct 21, 2026, 8:44 AM EDT
Recruiting Phase 1 Interventional

Autologous suraL nervE Grafting to the Substantia nigrA in Patients With Synuclienopathies

NCT06683365
View directory record Official record
Conditions
Multiple System Atrophy, Parkinsons Disease
Interventions
Sural Nerve Graft to the Substantia Nigra, Sham surgery
Procedure
Lead sponsor
Craig van Horne, MD, PhD
Other
Eligibility
40 Years to 75 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2030
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Aug 31, 2026 · Synced Oct 21, 2026, 8:44 AM EDT
Terminated Phase 1 Interventional

High Sodium Diet and External Abdominal Compression in POTS

NCT01771484
View directory record Official record
Conditions
Postural Orthostatic Tachycardia Syndrome
Interventions
External automated abdominal binder
Device
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 60 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 18, 2017 · Synced Oct 21, 2026, 8:44 AM EDT