Phase 3 N=26 Effect of Ivabradine on Patients With Postural Orthostatic Tachycardia Syndrome
Postural Orthostatic Tachycardia Syndrome
Primary: Change in Heart Rate — 17.0; 13.1 beats per minute
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Phase 1 N=28 The Renin-Aldosterone Axis in Postural Tachycardia Syndrome
Postural Orthostatic Tachycardia Syndrome (POTS)
Primary: Mean Arterial Blood Pressure Change — 14; 10 mmHg
N/A N=13 Adrenocorticotropic Hormone Stimulation in Postural Orthostatic Tachycardia Syndrome (POTS)
Postural Tachycardia Syndrome
Primary: Alldosterone Increase in Response to Adrenocorticotropin Hormone (ACTH). — 52.5; 57.9 nanograms/dL
N/A N=38 Dietary Salt in Postural Tachycardia Syndrome
Postural Orthostatic Tachycardia Syndrome
Primary: Plasma Volume — 2805; 3032; 2362; 2633 mL
N/A N=38 Dietary Sodium's Effect on Urinary Sodium and Dopamine Excretion in Patients With Postural Tachycardia Syndrome
Postural Orthostatic Tachycardia Syndrome
Primary: 24hr Urinary Sodium — 16.8; 280; 14.7; 245 milliequivalents
N/A N=26 Gastrointestinal Symptoms in Postural Orthostatic Tachycardia Syndrome
Postural Tachycardia Syndrome
Primary: C-peptide Levels After Oral Glucose Tolerance Test — 40.6; 23.2 pg/mL
Phase 3 N=28 Peripheral Dopamine in Postural Tachycardia Syndrome
Postural Tachycardia Syndrome · Orthostatic Intolerance
Primary: 24 Hour Urinary Sodium Excretion During Treatment Normalized to Creatinine — 140; 132; 137; 154 Milliequivalents per gram (mEq/g)
N/A N=40 Non-invasive Vagal Neurostimulation (nVNS) in Adolescents With Postural Orthostatic Tachycardia Syndrome (POTS)
Postural Tachycardia Syndrome · Autonomic Dysfunction · Postural Orthostatic Tachycardia Syndrome
Primary: The Change in Composite Autonomic Symptom Score (COMPASS-31) — -5.40; -5.94 score on a scale
N/A N=139 Standing Cognition and Co-morbidities of POTS Evaluation
Postural Tachycardia Syndrome · Ehlers-Danlos Syndrome
Primary: Executive Function (Stroop Word-color Test) — 48; 49; 50; 58 Testing Scores
N/A N=12 Effect of Exercise in OI
Orthostatic Intolerance · Postural Tachycardia Syndrome
Primary: Maximal Oxygen Consumption Capacity (VO2 Max) — 27.6; 24.5 mL/kg/min
Phase 2 N=20 Using Mirabegron to Increase BP in Patients With POTS
Postural Orthostatic Tachycardia Syndrome · Chronic Orthostatic Intolerance · Syncope
Primary: Blood Pressure — 101; 107; 64; 68 mmHg
N/A N=32 Hemodynamic Effects of Compression in POTS
Postural Tachycardia Syndrome
Primary: Orthostatic Heart Rate (HR) Change — 23; 28; 34; 39 beats per minute — p=<0.001
N/A N=27 Effect of Dietary Sodium Intake on Vascular Endothelium
Postural Tachycardia Syndrome (POTS)
Primary: FMD (% Change) — 12.75; 11.65; 11.43; 12.75 percentage of change
Early Phase 1 N=14 Renal Salt Handling in Postural Tachycardia Syndrome Following Dietary Dopa Administration
Healthy Participants
Primary: Plasma Dopa 1 hr After Breakfast — 11670; 1705 pg/mL
Phase 2 N=30 IVIG (Gamunex-C) Treatment Study for POTS Subjects
Postural Tachycardia Syndrome
Primary: Change in Symptoms Measured by Change in COMPASS-31 Score (After Initial Treatment Phase) — -5.5; -10.6 score on a scale — p=0.629
Phase 2 N=53 Efficacy and Safety Study of Efgartigimod in Adults With Post-COVID-19 POTS
Postural Orthostatic Tachycardia Syndrome
Primary: Change From Baseline to Week 24 in the COMPASS 31 (2-week Recall Version) — -14.369; -15.957 score on a scale
Phase 2 N=6 Intravenous Norepinephrine for Orthostatic Hypotension
Orthostatic Hypertension
Primary: Blood Pressure (Systolic) — 156; 158; 179; 148 mm Hg
Phase 2 N=109 Sex Hormones and Orthostatic Tolerance
Orthostatic Intolerance
Primary: Orthostatic Tolerance — 634 mmHg*min
N/A N=3 Cardioneuroablation for Neurocardiogenic Syncope
Neurocardiogenic Syncope · Vasovagal Syncope
Primary: Syncope Recurrence Rate
Phase 4 N=9 Lundbeck TOMs Orthostatic Hypotension
Orthostatic Hypotension · Idiopathic Parkinson Disease
Primary: Orthostatic Hypotension Questionnaire (OHQ) Score — 4.6 score on a scale
N/A N=10 rTMS Therapy for Primary Orthostatic Tremor
Primary Orthostatic Tremor
Primary: Change in Fullerton Advanced Balance (FAB) Scale Total Score After rTMS — 2.8; 0.9 change in score on a scale
Phase 2 N=40 Norepinephrine Transporter Blockade, Autonomic Failure (NETAF)
Neurogenic Orthostatic Hypotension
Primary: Change in the OHQ (Orthostatic Hypotension Questionnaire) Composite Score — 4.61; 4.17; 3.35; 3.5 Score on a scale
N/A N=10 Transcutaneous Stimulation in Spinal Cord Injury
Spinal Cord Injury
Primary: Seated Systolic Blood Pressure — 86; 100.4; 102.7; 101.3 mmHg
Phase 4 N=24 Tilt-Table Study of the Clinical Efficacy of Midodrine in Symptomatic Orthostatic Hypotension
Orthostatic Hypotension
Primary: Time to Onset of Syncope/Near Syncope While on Tilt Table — 1105.6; 1626.6 seconds — p=0.0131
N/A N=22 Local Heat Stress in Autonomic Failure Patients With Supine Hypertension
Hypertension · Pure Autonomic Failure · Multiple System Atrophy
Primary: Change in Systolic Blood Pressure — 19; 3 mm Hg
Phase 4 N=87 Treatment and Prognosis of Neurogenic Orthostatic Hypotension : A Prospective Randomized Study
Orthostatic; Hypotension, Neurogenic
Primary: Change in Orthostatic BP Drop — 11.1; 13.6; 8.9; 7.5 mmHg
Phase 4 N=24 Study to Assess the Benefit of Midodrine in the Treatment of Patients With Neurogenic Orthostatic Hypotension
Hypotension, Orthostatic
Primary: Time to Onset of Near-syncopal Symptoms During Tilt Table Testing — 551.3; 461.0 seconds — p=0.1460
N/A N=39 Ambulatory Post-Syncope Arrhythmia Protection Feasibility Study
Syncope
Primary: Device Unable to Monitor Due to ECG Noise — 1.5 percentage of time worn
Phase 4 N=453 Sustained Effect of Droxidopa in Symptomatic Neurogenic Orthostatic Hypotension
Symptomatic Neurogenic Orthostatic Hypotension
Primary: Time To Intervention — 52.00; 42.00; NA; NA Days — p=0.803
N/A N=20 Head-up Tilt Test in Patients With Reflex Syncope and Asystolic Response Who Received a Dual-chamber Pacemaker With the Closed Loop Stimulation (CLS) and Participated in the BIOSync Trial
Syncope · Syncope, Vasovagal
Primary: Heart Rate [Bpm] at Specific Time-points During Head-up Tilt Test (HUTT) Examination — 70; 88; 105; 95 beats per minute