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Showing 1–24 of 52 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Pure Autonomic Failure Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

Nitric Oxide and the Autonomic Nervous System

NCT00178919
View directory record Official record
Conditions
Hypertension, Pure Autonomic Failure
Interventions
L-NMMA, Trimethaphan
Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 85 Years
Enrollment
112 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2008
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 3, 2013 · Synced Sep 13, 2026, 12:42 AM EDT
Terminated No phase listed Observational

Magnetic Resonance Spectroscopy in Autonomic Failure

NCT01607268
View directory record Official record
Conditions
Pure Autonomic Failure, Multiple System Atrophy
Interventions
Magnetic Resonance Spectroscopy Imaging
Procedure
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 80 Years
Enrollment
6 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 17, 2017 · Synced Sep 13, 2026, 12:42 AM 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 13, 2026, 12:42 AM EDT
Terminated Phase 3 Interventional Results available

Phase 3 Open-Label Extension Study of TD-9855 for Treating Symptomatic nOH in Subjects With Primary Autonomic Failure

NCT04095793
View directory record Official record
Conditions
Symptomatic Neurogenic Orthostatic Hypotension
Interventions
ampreloxetine
Drug
Lead sponsor
Theravance Biopharma
Industry
Eligibility
30 Years and older
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
13
States / cities
Colorado Springs, Colorado • Boca Raton, Florida • Port Charlotte, Florida + 10 more
Source: ClinicalTrials.gov public record
Updated Nov 29, 2022 · Synced Sep 13, 2026, 12:42 AM EDT
Completed No phase listed Observational

Plasma Exchange for Autoimmune Autonomic Failure

NCT00359346
View directory record Official record
Conditions
Plasma Exchange, Autonomic Failure
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
18 Years to 99 Years
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 13, 2026, 12:42 AM EDT
Recruiting Not applicable Interventional

Use of Accelerometer for Quantification of Neurogenic Orthostatic Hypotension Symptoms

NCT04782830
View directory record Official record
Conditions
Orthostatic; Hypotension, Neurogenic, Autonomic Failure, Pure Autonomic Failure, Multiple System Atrophy, Orthostatic; Hypotension, Parkinsonism
Interventions
Accelerometer, placebo pill, Midodrine or atomoxetine pill
Device · Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
40 Years to 80 Years
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jul 1, 2026 · Synced Sep 13, 2026, 12:42 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

[18F]F-DOPA Imaging in Patients With Autonomic Failure

NCT04246437
View directory record Official record
Conditions
Autonomic Failure, Pure Autonomic Failure, Parkinson Disease, Multiple System Atrophy, Dementia With Lewy Bodies
Interventions
[18F]FDOPA, Carbidopa 200mg oral dose, Entacapone 400mg oral dose
Drug
Lead sponsor
Daniel Claassen
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2027
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 15, 2026 · Synced Sep 13, 2026, 12:42 AM 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 13, 2026, 12:42 AM EDT
Completed Phase 2 Interventional Results available

TD-9855 Phase 2 in Neurogenic Orthostatic Hypotension (nOH)

NCT02705755
View directory record Official record
Conditions
Neurogenic Orthostatic Hypotension, Multiple System Atrophy (MSA) With Orthostatic Hypotension, Pure Autonomic Failure, Parkinson Disease, Hypotension, Orthostatic, Orthostatic Hypotension, Pure Autonomic Failure With Orthostatic Hypotension, Parkinson Disease With Orthostatic Hypotension
Interventions
TD-9855, Placebo
Drug
Lead sponsor
Theravance Biopharma
Industry
Eligibility
40 Years and older
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
6
States / cities
Long Beach, California • Farmington Hills, Michigan • Berlin, New Jersey + 3 more
Source: ClinicalTrials.gov public record
Updated Sep 25, 2022 · Synced Sep 13, 2026, 12:42 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 Feb 28, 2018 · Synced Sep 13, 2026, 12:42 AM EDT
Completed Not applicable Interventional

Abdominal Compression in Orthostatic Hypotension

NCT01223391
View directory record Official record
Conditions
Autonomic Failure, Orthostatic Hypotension
Interventions
Abdominal binder, No abdominal binder
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 80 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 11, 2014 · Synced Sep 13, 2026, 12:42 AM EDT
Withdrawn Phase 1 Interventional

The Role of Endothelin in the Supine Hypertension of Autonomic Failure

NCT01119417
View directory record Official record
Conditions
Hypertension, Pure Autonomic Failure, Multiple System Atrophy
Interventions
BQ123, Saline
Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 85 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2021
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Oct 4, 2021 · Synced Sep 13, 2026, 12:42 AM EDT
Terminated Phase 1 Interventional

Contribution of Angiotensin II to Supine Hypertension in Autonomic Failure

NCT01292694
View directory record Official record
Conditions
Hypertension, Pure Autonomic Failure, Multiple System Atrophy
Interventions
Losartan, Captopril, Placebo
Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 85 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2017
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 23, 2018 · Synced Sep 13, 2026, 12:42 AM EDT
Recruiting Not applicable Interventional

Effect of Raised Head of the Bed on Lying Blood Pressure in Autonomic Failure

NCT04502225
View directory record Official record
Conditions
Supine Hypertension, Autonomic Failure
Interventions
Tilt, Elevated trunk, Tilt - In home, Elevated Trunk - In home
Other
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 85 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Nov 5, 2025 · Synced Sep 13, 2026, 12:42 AM 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 13, 2026, 12:42 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Retinal Abnormalities as Biomarker of Disease Progression and Early Diagnosis of Parkinson Disease

NCT02640339
View directory record Official record
Conditions
Parkinson Disease, Multiple System Atrophy, REM Sleep Behavior Disorder, Pure Autonomic Failure, Dementia With Lewy Bodies
Interventions
Not listed
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
166 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 1, 2020 · Synced Sep 13, 2026, 12:42 AM EDT
Completed Early Phase 1 Interventional Results available

Effect of Midodrine vs Abdominal Compression on Cardiovascular Risk Markers in Autonomic Failure Patients

NCT04620382
View directory record Official record
Conditions
Neurogenic Orthostatic Hypotension, Autonomic Failure, Pure Autonomic Failure, Multiple System Atrophy, Parkinson Disease
Interventions
Midodrine, Placebo pill, Abdominal compression, sham compression
Drug · Device
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
40 Years to 80 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 6, 2026 · Synced Sep 13, 2026, 12:42 AM EDT
Terminated Phase 2 Interventional Accepts healthy volunteers Results available

Mechanisms of Hypoglycemia Associated Autonomic Failure

NCT00678145
View directory record Official record
Conditions
Diabetes Mellitus, Hypoglycemia, Autonomic Failure
Interventions
naloxone, fructose, exercise, Morphine sulfate, Epinephrine
Drug · Dietary Supplement · Behavioral
Lead sponsor
Albert Einstein College of Medicine
Other
Eligibility
21 Years to 60 Years
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2018
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated May 18, 2026 · Synced Sep 13, 2026, 12:42 AM EDT
Completed Phase 3 Interventional Results available

Open-Label Clinical Study of Droxidopa in Patients With Neurogenic Orthostatic Hypotension (NOH)

NCT00738062
View directory record Official record
Conditions
Neurogenic Orthostatic Hypotension, Non-Diabetic Autonomic Neuropathy, Multiple System Atrophy, Dopamine Beta Hydroxylase Deficiency
Interventions
Droxidopa, Placebo
Drug
Lead sponsor
Chelsea Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
103 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
44
States / cities
Birmingham, Alabama • Litchfield Park, Arizona • Phoenix, Arizona + 39 more
Source: ClinicalTrials.gov public record
Updated May 15, 2014 · Synced Sep 13, 2026, 12:42 AM EDT
Terminated No phase listed Observational

Evaluation of Primary Chronic Autonomic Failure

NCT00059033
View directory record Official record
Conditions
Autonomic Nervous System Diseases
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
18 Years and older
Enrollment
325 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2018
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 11, 2019 · Synced Sep 13, 2026, 12:42 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 4, 2026 · Synced Sep 13, 2026, 12:42 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Hypoglycemia Associated Autonomic Failure in Type 1 DM, Q2

NCT00592332
View directory record Official record
Conditions
Type 1 Diabetes
Interventions
Alprazolam, control group
Drug · Other
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 45 Years
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2009
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 10, 2014 · Synced Sep 13, 2026, 12:42 AM 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 13, 2026, 12:42 AM EDT
Recruiting No phase listed Observational

Natural History Study of Synucleinopathies

NCT01799915
View directory record Official record
Conditions
Patients With Synucleinopathies, Neurogenic Orthostatic Hypotension, Pure Autonomic Failure, REM Sleep Behavior Disorder, Parkinson Disease, Dementia With Lewy Bodies, Multiple System Atrophy, Shy-Drager Disease
Interventions
Not listed
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2026
U.S. locations
5
States / cities
Boston, Massachusetts • Ann Arbor, Michigan • Rochester, Minnesota + 2 more
Source: ClinicalTrials.gov public record
Updated Jun 9, 2026 · Synced Sep 13, 2026, 12:42 AM EDT