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TrialConditionsStatusPhaseUpdatedMore infoNCT ID
Guanfacine and Cromolyn Sodium for POTS: The DBPOTS TrialCognition Disorders, Cognitive Dysfunction, Fatigue, Mental Fatigue, Neurologic Manifestations, Pathological Conditions, Signs and Symptoms, Signs and Symptoms, autonomic nervous system disorder, cognitive disorder, nervous system disorder, orthostatic intolerance, primary dysautonomia, psychiatric disorderNot yet recruitingEarly phase 12026-10-09NCT07757555
Cardioneuroablation for Reflex Syncope and Exercise CapacityConsciousness Disorders, Neurobehavioral Manifestations, Neurologic Manifestations, Pathological Conditions, Signs and Symptoms, Signs and Symptoms, Syncope, Syncope, Vasovagal, Unconsciousness, autonomic nervous system disorder, nervous system disorder, orthostatic intolerance, primary dysautonomiaActive, not recruitingNot applicable2026-10-09NCT06440291
Screening Study for KIT D816V Mutated Mast Cell Disease in Select PopulationsChronic Disease, Disease Attributes, Hemic and Lymphatic Diseases, Mast Cell Activation Disorders, Neoplasms by Histologic Type, Neoplasms by Site, Neoplasms, Connective and Soft Tissue, Pathologic Processes, Pathological Conditions, Signs and Symptoms, Skin and Connective Tissue Diseases, alpha-gal syndrome, autonomic nervous system disorder, bone marrow disorder, chronic myelomonocytic leukemia, connective tissue neoplasm, cutaneous mastocytosis, hematologic disorder, immune system disorder, leukemia, mastocytosis, myelodysplastic/myeloproliferative disease, myeloid leukemia, neoplasm, nervous system disorder, orthostatic intolerance, primary dysautonomia, skin disorder, skin neoplasmRecruitingNot stated2026-10-07NCT07143669
Inappropriate Sinus Tachycardia Registryautonomic nervous system disorder, nervous system disorder, orthostatic intolerance, primary dysautonomiaRecruitingNot stated2026-10-07NCT05107635
NORTHERA (DROXIDOPA) for Dysautonomia in Pediatric Survivors of Menkes DiseaseBrain Diseases, Metabolic, Brain Diseases, Metabolic, Inborn, Congenital, Hereditary, and Neonatal Diseases and Abnormalities, Hypotension, Orthostatic, Menkes disease, Neurobehavioral Manifestations, Neurologic Manifestations, Nutritional and Metabolic Diseases, Skin and Connective Tissue Diseases, X-linked disease, autonomic nervous system disorder, brain disorder, cardiovascular disorder, central nervous system disorder, disorder of pilosebaceous unit, hereditary disease, hypotensive disorder, inborn errors of metabolism, inborn metal metabolism disorder, inherited neurodegenerative disorder, intellectual disability, metabolic disease, nervous system disorder, orthostatic intolerance, primary dysautonomia, skin disorder, vascular disorderRecruitingPhase 1 / Phase 22026-10-05NCT07398508
The Precision Mito- Mito Map COMPASS StudyBacterial Infections and Mycoses, Borrelia infectious disease, Chronic Disease, Disease Attributes, Fatigue, Infections, Lyme disease, Nutritional and Metabolic Diseases, Pathologic Processes, Pathological Conditions, Signs and Symptoms, Post-Infectious Disorders, Signs and Symptoms, autonomic nervous system disorder, bacterial infectious disease, fibromyalgia, gram-negative bacterial infections, inborn mitochondrial metabolism disorder, metabolic disease, muscle tissue disorder, musculoskeletal system disorder, nervous system disorder, neuromuscular disease, orthostatic intolerance, post-treatment Lyme disease syndrome, primary dysautonomia, rheumatic disorder, spirochaetales infections, tick-borne infectious disease, vector-borne diseaseNot yet recruitingNot stated2026-10-02NCT07856121
Ceasing Alpha-blockers Early After Resection of the Prostate (The CLEAR Trial)Genital Diseases, Hypotension, Orthostatic, Male Urogenital Diseases, Urogenital Diseases, autonomic nervous system disorder, benign prostatic hyperplasia, cardiovascular disorder, hypotensive disorder, male reproductive system disorder, nervous system disorder, orthostatic intolerance, primary dysautonomia, prostate disorder, vascular disorderNot yet recruitingPhase 42026-09-29NCT07846579
Does a Periaqueductal Gray-vagus Nerve Interface Malfunction Explain the Nat hx With Its Numerous Co-morbidities?autonomic nervous system disorder, nervous system disorder, orthostatic intolerance, primary dysautonomiaRecruitingNot stated2026-09-29NCT06616363
Evaluating the Prevalence of Acute Hepatic Porphyria in Postural Tachycardia SyndromeCongenital, Hereditary, and Neonatal Diseases and Abnormalities, Digestive System Diseases, Nutritional and Metabolic Diseases, Skin and Connective Tissue Diseases, autonomic nervous system disorder, hepatic porphyria, hereditary coproporphyria, hereditary disease, hereditary skin disorder, liver disorder, metabolic disease, nervous system disorder, orthostatic intolerance, porphyria, porphyria due to ALA dehydratase deficiency, primary dysautonomia, skin disorderActive, not recruitingNot stated2026-09-28NCT05344599
Long COVID Immune ProfilingCOVID-19, Chronic Disease, Coronaviridae Infections, Disease Attributes, Infections, Neurologic Manifestations, Nidovirales infectious disease, Orthocoronavirinae infectious disease, Pathologic Processes, Pathological Conditions, Signs and Symptoms, Post-Infectious Disorders, RNA Virus Infections, Signs and Symptoms, autonomic nervous system disorder, long COVID-19, lung disorder, nervous system disorder, orthostatic intolerance, pneumonia, primary dysautonomia, respiratory system disorder, respiratory tract infectious disorder, viral infectious disease, viral pneumoniaActive, not recruitingNot stated2026-09-25NCT06027255
RESET-POTS: Multimodal Phenotyping and Stellate Ganglion Block in Postural Orthostatic Tachycardia Syndromeautonomic nervous system disorder, nervous system disorder, orthostatic intolerance, primary dysautonomiaNot yet recruitingNot applicable2026-09-24NCT07837804
fMRI in Postural Tachycardia Syndromeautonomic nervous system disorder, nervous system disorder, orthostatic intolerance, primary dysautonomiaActive, not recruitingNot applicable2026-09-24NCT04137757
The Impact of Improved Vagal Function on Periaqueductal Gray Connectivityautonomic nervous system disorder, nervous system disorder, orthostatic intolerance, primary dysautonomiaNot yet recruitingNot applicable2026-09-16NCT05618067
Biospecimen Repository for Cardiac Arrhythmias at the Cleveland ClinicArrhythmia, Sinus, Arrhythmias, Cardiac, Atrial Premature Complexes, Cardiac Complexes, Premature, Cardiac Conduction System Disease, Consciousness Disorders, Death, Neurobehavioral Manifestations, Neurologic Manifestations, Pathologic Processes, Pathological Conditions, Signs and Symptoms, Signs and Symptoms, Syncope, Tachycardia, Tachycardia, Supraventricular, Unconsciousness, Ventricular Premature Complexes, atrial fibrillation, atrioventricular dissociation, autonomic nervous system disorder, cardiovascular disorder, heart disorder, nervous system disorder, orthostatic intolerance, primary dysautonomia, sick sinus syndrome, ventricular fibrillation, ventricular tachycardiaRecruitingNot stated2026-09-14NCT00921986
Fainting Detection And Early Warning In Syncope Evaluation Study (ARISE)Consciousness Disorders, Hypotension, Orthostatic, Neurobehavioral Manifestations, Neurologic Manifestations, Pathological Conditions, Signs and Symptoms, Signs and Symptoms, Syncope, Syncope, Vasovagal, Unconsciousness, autonomic nervous system disorder, cardiovascular disorder, hypotensive disorder, nervous system disorder, orthostatic intolerance, primary dysautonomia, vascular disorderRecruitingNot stated2026-09-09NCT07502599
Total Underwater Colonoscopy (TUC) for Improved Colorectal Cancer Screening: A Randomized Controlled TrialConsciousness Disorders, Digestive System Diseases, Digestive System Neoplasms, Neoplasms by Site, Neurobehavioral Manifestations, Neurologic Manifestations, Pathological Conditions, Signs and Symptoms, Signs and Symptoms, Syncope, Syncope, Vasovagal, Unconsciousness, autonomic nervous system disorder, colonic disorder, colorectal cancer, colorectal neoplasm, digestive system disorder, digestive system neoplasm, intestinal disorder, neoplasm, nervous system disorder, orthostatic intolerance, primary dysautonomia, rectal disorderRecruitingNot applicable2026-09-04NCT06333392
Cardiovascular Autonomic Function After Resistance TrainingHypotension, Orthostatic, autonomic nervous system disorder, cardiovascular disorder, central nervous system disorder, hypotensive disorder, injury, nervous system disorder, nervous system injury, orthostatic intolerance, primary dysautonomia, spinal cord disorder, spinal cord injury, vascular disorderNot yet recruitingNot applicable2026-09-03NCT07725952
The Effect of Physical Activity on Postural Orthostatic Tachycardia SyndromeNeurologic Manifestations, Pathological Conditions, Signs and Symptoms, Signs and Symptoms, autonomic nervous system disorder, nervous system disorder, orthostatic intolerance, primary dysautonomiaRecruitingNot applicable2026-09-03NCT05554107
Autonomic Effects of Spinal Cord Stimulation in Spinal Cord InjuryHypotension, Orthostatic, autonomic nervous system disorder, cardiovascular disorder, hypotensive disorder, nervous system disorder, orthostatic intolerance, primary dysautonomia, vascular disorderActive, not recruitingNot applicable2026-08-10NCT05960448
Blood Pressure Effects on Cognition and Brain Blood Flow in PDHypotension, Orthostatic, Parkinson disease, autonomic nervous system disorder, basal ganglia disorder, brain disorder, cardiovascular disorder, central nervous system disorder, hypotensive disorder, movement disorder, nervous system disorder, neurodegenerative disease, orthostatic intolerance, parkinsonian disorder, primary dysautonomia, synucleinopathy, vascular disorderRecruitingNot applicable2026-08-07NCT05400174
State of Knowledge Among Nurses Regarding the Screening for Orthostatic Hypotension in Elderly Individuals in Acute Geriatric Medicine and Medical and Rehabilitation ServicesHypotension, Orthostatic, autonomic nervous system disorder, cardiovascular disorder, hypotensive disorder, nervous system disorder, orthostatic intolerance, primary dysautonomia, vascular disorderNot yet recruitingNot stated2026-07-31NCT07738666
Phenotyping of Postural Orthostatic Tachycardia Syndrome (POTS)autonomic nervous system disorder, nervous system disorder, orthostatic intolerance, primary dysautonomiaRecruitingNot stated2026-07-17NCT06292104
Effects of Individual Tailored Physical Exercise in Patients With POTS After COVID-19 - a Randomized Controlled StudyCOVID-19, Chronic Disease, Coronaviridae Infections, Disease Attributes, Infections, Nidovirales infectious disease, Orthocoronavirinae infectious disease, Pathologic Processes, Pathological Conditions, Signs and Symptoms, Post-Infectious Disorders, RNA Virus Infections, autonomic nervous system disorder, long COVID-19, lung disorder, nervous system disorder, orthostatic intolerance, pneumonia, primary dysautonomia, respiratory system disorder, respiratory tract infectious disorder, viral infectious disease, viral pneumoniaActive, not recruitingNot applicable2026-07-15NCT05877534
Cardiovascular Autonomic and Immune Mechanism of Post COVID-19 Tachycardia SyndromeCOVID-19, Chronic Disease, Coronaviridae Infections, Disease Attributes, Infections, Nidovirales infectious disease, Orthocoronavirinae infectious disease, Pathologic Processes, Pathological Conditions, Signs and Symptoms, Post-Infectious Disorders, RNA Virus Infections, autonomic nervous system disorder, long COVID-19, lung disorder, nervous system disorder, orthostatic intolerance, pneumonia, primary dysautonomia, respiratory system disorder, respiratory tract infectious disorder, viral infectious disease, viral pneumoniaActive, not recruitingNot applicable2026-07-15NCT05421208
Droxidopa / Pyridostigmine in Orthostatic HypotensionHypotension, Orthostatic, autonomic nervous system disorder, cardiovascular disorder, hypotensive disorder, nervous system disorder, orthostatic intolerance, primary dysautonomia, vascular disorderEnrolling by invitationPhase 22026-07-15NCT01370512