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43 studies found for:    Open Studies | "Orthostatic Intolerance"
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Open Studies | "Orthostatic Intolerance" (43 records)
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Rank Status Study
1 Recruiting Treatment of Orthostatic Intolerance in Patients With Parkinson's Disease Using Midodrine
Conditions: Orthostatic Intolerance;   Parkinson's Disease
Intervention: Drug: Midodrine
2 Recruiting Pathophysiology of Orthostatic Intolerance
Conditions: Tachycardia;   Postural Orthostatic Tachycardia Syndrome
Interventions: Radiation: DAXOR;   Procedure: QSweat;   Drug: Intrinsic Heart Rate
3 Recruiting Effect of Methylprednisolone on Orthostatic Intolerance and Heart Rate Variability in Hip-arthroplasty Patients
Condition: Osteoarthrosis
Interventions: Drug: Methylprednisolone;   Drug: Isotonic Sodium Chloride
4 Recruiting Reducing Orthostatic Intolerance With Oral Rehydration in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome Patients
Conditions: Chronic Fatigue Syndrome;   Myalgic Encephalomyelitis;   Systemic Exertion Intolerance Disease (SEID);   Postural Tachycardia Syndrome (POTS);   Neurally Mediated Syncope (NMS)
Interventions: Drug: Normal Saline;   Dietary Supplement: Oral Rehydration Solution
5 Recruiting Study on Baroreceptor Function in Relation to Orthostatic Blood Pressure Regulation After Hip Surgery
Conditions: Hypotension, Orthostatic;   Total Hip Replacement
Intervention:
6 Recruiting High Sodium Diet and External Abdominal Compression in POTS
Condition: Postural Orthostatic Tachycardia Syndrome
Intervention: Device: External automated abdominal binder
7 Recruiting EEG Characteristics in Youth POTS and/or Syncope
Conditions: Syncope;   Postural Tachycardia Syndrome;   Orthostatic Intolerance
Intervention: Device: Abdominal and lower extremity compression
8 Recruiting Autoimmune Basis for Postural Tachycardia Syndrome
Conditions: Postural Orthostatic Tachycardia Syndrome;   Postural Tachycardia Syndrome;   Tachycardia;   Arrhythmias, Cardiac;   Autonomic Nervous System Diseases;   Orthostatic Intolerance;   Cardiovascular Diseases;   Primary Dysautonomias
Interventions: Drug: phenylephrine;   Drug: isoproterenol;   Radiation: 25 micro-Ci of radiation;   Procedure: Posture study with blood samples;   Procedure: 24-hour heart rhythm and blood pressure monitoring;   Procedure: Quantitative Axonal Sudomotor Reflex Testing;   Procedure: Autonomic function tests
9 Not yet recruiting Effects of Melatonin to Reduce Nocturnal Hypertension in Patients With Neurogenic Orthostatic Hypotension
Conditions: Hypotension, Orthostatic;   Hypertension;   Autonomic Nervous System Diseases
Interventions: Drug: Yohimbine;   Drug: Melatonin
10 Recruiting Northera Improves Postural Tachycardia Syndrome (POTS) and Postural Vasovagal Syncope (VVS)
Conditions: Postural Tachycardia Syndrome (POTS);   Vasovagal Syncope (VVS);   Fainting
Interventions: Drug: Northera (Droxidopa);   Drug: Placebo
11 Recruiting Modafinil and Cognitive Function in POTS
Condition: Postural Tachycardia Syndrome
Interventions: Drug: Placebo;   Drug: Modafinil;   Drug: Propranolol
12 Recruiting Mechanisms of Vasovagal Syncope
Conditions: Vasovagal Syncope;   Postural Tachycardia Syndrome
Interventions: Drug: Phenylephrine;   Drug: L-Ng-monomethyl Arginine (L-NMMA)
13 Recruiting Norepinephrine Transporter Blockade, Autonomic Failure (NETAF)
Condition: Neurogenic Orthostatic Hypotension
Interventions: Drug: Atomoxetine;   Drug: Placebo
14 Recruiting TD-9855 Phase 2 in Neurogenic Orthostatic Hypotension (nOH)
Condition: Neurogenic Orthostatic Hypotension
Interventions: Drug: TD-9855;   Drug: Placebo
15 Recruiting Dawn Simulation and Postural Hypotension
Condition: Orthostatic Hypotension
Intervention: Device: Light
16 Recruiting Sustained Effect of Droxidopa in Symptomatic Neurogenic Orthostatic Hypotension
Condition: Symptomatic Neurogenic Orthostatic Hypotension
Interventions: Drug: Droxidopa capsules;   Drug: Placebo capsules
17 Recruiting Treatment and Prognosis of Neurogenic Orthostatic Hypotension : A Prospective Randomized Study
Condition: Orthostatic; Hypotension, Neurogenic
Interventions: Drug: Midodrine;   Drug: Pyridostigmine Bromide;   Drug: Midodrine + pyridostigmine bromide
18 Recruiting Evaluation of the Effect of Hydration About Orthostatic Hypotension in the Elderly. Difference With Venous Compression
Condition: Orthostatic Hypotension
Interventions: Other: Hydration;   Other: Venous contention
19 Recruiting Droxidopa / Pyridostigmine in Orthostatic Hypotension
Condition: Orthostatic Hypotension
Interventions: Drug: Droxidopa;   Drug: Pyridostigmine Bromide
20 Recruiting Treatment of Orthostatic Hypotension in Autonomic Failure
Conditions: Autonomic Failure;   Orthostatic Hypotension
Interventions: Drug: Atomoxetine;   Drug: Acarbose;   Drug: Pyridostigmine Bromide;   Drug: Yohimbine;   Drug: Midodrine HCl;   Drug: placebo;   Drug: Modafinil;   Drug: Octreotide;   Other: water intake;   Drug: Diphenhydramine Hydrochloride;   Drug: Ranitidine HCL;   Drug: Tranylcypromine;   Drug: Ergotamine/ Caffeine;   Drug: Celecoxib;   Drug: Pseudoephedrine;   Drug: Methylphenidate;   Drug: Indomethacin;   Drug: Ibuprofen;   Drug: Oxymetazoline 0.05% nasal solution;   Dietary Supplement: Bovril;   Drug: Acetazolamide;   Drug: Rivastigmine tartrate;   Drug: Carbidopa/levodopa;   Device: Inflatable abdominal binder;   Device: inflatable abdominal binder (sham)

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Study has passed its completion date and status has not been verified in more than two years.