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Showing 1–18 of 18 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Posture study with blood samples Clear all
Withdrawn No phase listed Observational

Autonomic Phenotype Before and After Akt Inhibition

NCT01593579
View directory record Official record
Conditions
Diagnosis of Melanoma
Interventions
Autonomic Function Tests, supine and standing catecholamines
Behavioral · Other
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 80 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 22, 2014 · Synced Sep 6, 2026, 5:24 AM EDT
Completed Not applicable Interventional

UPnRIDE Power Standing Wheelchair for SCI

NCT04163796
View directory record Official record
Conditions
Spinal Cord Injuries
Interventions
UPnRIDE power wheelchair
Device
Lead sponsor
Bronx Veterans Medical Research Foundation, Inc
Other
Eligibility
18 Years to 89 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Jan 7, 2024 · Synced Sep 6, 2026, 5:24 AM EDT
Completed Phase 1 Interventional

The Pathophysiology of Orthostatic Hypotension

NCT00748059
View directory record Official record
Conditions
Autonomic Nervous System Diseases, Orthostatic Hypotension, Dopamine Beta-Hydroxylase Deficiency, Orthostatic Intolerance
Interventions
Standing or upright tilt, Microneurography, QSweat, neck cuff stimulation, phenylephrine,isoproterenol,nitroprusside,propranolol,edrophonium,atropine,tyramine, clonidine,yohimbine,metoclopramide,alpha-methyldopa, BodPod, Eye exam, Sleep study, Pain response testing, Metabolic chamber, Brain function studies, Bicycle Exercise Test
Procedure · Device · Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
12 Years to 70 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1996 – 2020
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 11, 2021 · Synced Sep 6, 2026, 5:24 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

AI-Enabled Direct-from-ECG Ejection Fraction (EF) Severity Assessment Using COR ECG Wearable Monitor

NCT06699056
View directory record Official record
Conditions
Ventricular Ejection Fraction, LVF, LV Dysfunction, Atrial Enlargement, Conduction Defect, Heart Failure, Valvular Heart Disease, Ischemic Heart Disease, Cardiotoxicity, Myocardial Infarction, Dilated Cardiomyopathy, HFrEF - Heart Failure With Reduced Ejection Fraction, HFpEF - Heart Failure With Preserved Ejection Fraction, Syncope, Remodeling, Cardiac
Interventions
15-minutes of sitting during COR ECG Acquistion
Device
Lead sponsor
Peerbridge Health, Inc
Industry
Eligibility
18 Years and older
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
8
States / cities
Orange, California • Pasadena, California • Detroit, Michigan + 5 more
Source: ClinicalTrials.gov public record
Updated May 31, 2026 · Synced Sep 6, 2026, 5:24 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Strength, Flexibility, And Balance Therapy After Stroke

NCT01109602
View directory record Official record
Conditions
Stroke
Interventions
Yoga focused on strength, flexibility, and balance
Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Nov 22, 2015 · Synced Sep 6, 2026, 5:24 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Yoga, Immune Function, and Health

NCT00371397
View directory record Official record
Conditions
Healthy
Interventions
Hatha Yoga Classes, Movement Control
Behavioral
Lead sponsor
Ohio State University
Other
Eligibility
30 Years to 65 Years · Female only
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2008
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 5, 2016 · Synced Sep 6, 2026, 5:24 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Cardiovascular Function and Response to Stimulation Within the First Year After Spinal Cord Injury

NCT06841198
View directory record Official record
Conditions
Spinal Cord Injuries (SCI), Orthostatic Hypotension, Dysautonomic, Cardiovascular, Transcutaneous Spinal Stimulation
Interventions
spinal cord transcutaneous stimulation, Ice testing
Device · Procedure
Lead sponsor
Kessler Foundation
Other
Eligibility
18 Years to 75 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
West Orange, New Jersey
Source: ClinicalTrials.gov public record
Updated Jun 30, 2026 · Synced Sep 6, 2026, 5:24 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Central Hemodynamic Exercise Responses Study

NCT03118700
View directory record Official record
Conditions
Exercise, Central Blood Pressure
Interventions
Aerobic Interval Exercise, Continuous exercise
Other
Lead sponsor
Arizona State University
Other
Eligibility
18 Years to 45 Years · Male only
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Oct 26, 2017 · Synced Sep 6, 2026, 5:24 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Dietary Sodium's Effect on Urinary Sodium and Dopamine Excretion in Patients With Postural Tachycardia Syndrome

NCT01563107
View directory record Official record
Conditions
Postural Orthostatic Tachycardia Syndrome
Interventions
Plasma Volume, Exercise Capacity Test - Bicycle, Posture Study
Radiation · Procedure
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2020
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 24, 2022 · Synced Sep 6, 2026, 5:24 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Evaluating Q-Collar Effects on Brain Blood Flow Control During Exercise

NCT06826781
View directory record Official record
Conditions
Healthy
Interventions
Q30 Q-Collar, Not wearing Q-Collar
Device · Other
Lead sponsor
Spaulding Rehabilitation Hospital
Other
Eligibility
18 Years to 30 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 26, 2025 · Synced Sep 6, 2026, 5:24 AM EDT
Completed Not applicable Interventional Results available

Physiological Changes With High-Flow Nasal Cannula

NCT03700606
View directory record Official record
Conditions
Respiratory Distress Syndrome in Premature Infant
Interventions
High flow nasal cannula, Nasal CPAP
Procedure
Lead sponsor
Sharp HealthCare
Other
Eligibility
23 Weeks to 28 Weeks
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Apr 16, 2026 · Synced Sep 6, 2026, 5:24 AM EDT
Completed Not applicable Interventional

Effectiveness of Yoga on Ambulatory Blood Pressure in Patients With Pre- and Stage I Hypertension

NCT01542359
View directory record Official record
Conditions
Hypertension
Interventions
Yogic practice, Conventional Exercise
Other
Lead sponsor
Long Island University
Other
Eligibility
21 Years to 74 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
Brooklyn, New York
Source: ClinicalTrials.gov public record
Updated Jan 9, 2013 · Synced Sep 6, 2026, 5:24 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

OSA in Pregnant Women With Chronic HTN

NCT03230110
View directory record Official record
Conditions
Sleep Apnea, Obstructive, Pregnancy, Hypertension
Interventions
WP200U home sleep study device
Diagnostic Test
Lead sponsor
Duke University
Other
Eligibility
18 Years and older · Female only
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
2
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 23, 2019 · Synced Sep 6, 2026, 5:24 AM EDT
Withdrawn No phase listed Observational

Starling/CRRT Observational Study

NCT05729048
View directory record Official record
Conditions
Hemodynamic Monitoring
Interventions
Starling
Device
Lead sponsor
Baxter Healthcare Corporation
Industry
Eligibility
18 Years to 95 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Jul 13, 2023 · Synced Sep 6, 2026, 5:24 AM EDT
Completed Not applicable Interventional Results available

Determination of the Predictors of Nocturnal Desaturation in Postpartum Women

NCT02330055
View directory record Official record
Conditions
Sleep Disordered Breathing, Nocturnal Oxygen Desaturation, Upper Airway Edema
Interventions
Forty-five degrees elevated upper body position, non-elevated upper body position, Noninvasive wrist pulse oximeter (WristOx Model 3150), Stop-Bang questionnaire, Epworth Sleepiness Scale, P-SAP Score, self-reported pain
Procedure · Device · Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 55 Years · Female only
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 5, 2018 · Synced Sep 6, 2026, 5:24 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Dermatologic Research Evaluation and Monitoring of Sleep in Moderate-to-Severe Psoriasis

NCT05102474
View directory record Official record
Conditions
Psoriasis Vulgaris
Interventions
Polysomnography (PSG)
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Aug 5, 2025 · Synced Sep 6, 2026, 5:24 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Noradrenergic and Stress-Related Etiologies of Chronic Fatigue Syndrome

NCT03029377
View directory record Official record
Conditions
Chronic Fatigue Syndrome
Interventions
Posture Study, Autonomic Function Tests, and a Stress Test
Other
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 60 Years
Enrollment
55 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 25, 2018 · Synced Sep 6, 2026, 5:24 AM 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 6, 2026, 5:24 AM EDT