- 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
Search Results
Search by objective public record fields.
Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results come from ClinicalTrials.gov. When the live registry is unavailable, a clearly labeled stored copy may be shown.
These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Showing 1–8
of 8
matching trials from the live ClinicalTrials.gov search.
- Conditions
- Postural Orthostatic Tachycardia Syndrome
- Interventions
- Blood Volume, Total Blood Volume, Exercise Capacity Test - Bicycle, Posture Study
- Radiation · Procedure
- Lead sponsor
- Vanderbilt University
- Other
- Eligibility
- 18 Years to 50 Years
- Enrollment
- 38 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2012 – 2021
- U.S. locations
- 1
- States / cities
- Nashville, Tennessee
- Conditions
- Obstructive Sleep Apnea Syndrome
- Interventions
- Sleep Study, Neurocognitive Testing, CBF During Wakefulness, CBF During Sleep
- Other
- Lead sponsor
- Children's Hospital of Philadelphia
- Other
- Eligibility
- 6 Years to 12 Years
- Enrollment
- 47 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2016 – 2022
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania
- Conditions
- Epilepsy, SUDEP
- Interventions
- 6% Carbon dioxide/50% oxygen/balance nitrogen mixture
- Other
- Lead sponsor
- University of Iowa
- Other
- Eligibility
- 18 Years to 99 Years
- Enrollment
- 335 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2029
- U.S. locations
- 1
- States / cities
- Iowa City, Iowa
- Conditions
- Spinal Cord Injuries (SCI)
- Interventions
- Augmented Acute Intermittent Hypoxia (aAIH), Acute Intermittent Hypercapnic-Hypoxia (AIHH), Sham AIH
- Other
- Lead sponsor
- University of Florida
- Other
- Eligibility
- 18 Years to 70 Years
- Enrollment
- 18 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2025 – 2027
- U.S. locations
- 1
- States / cities
- Jacksonville, Florida
- Conditions
- Hypoxemia
- Interventions
- Rebreathing-induced hypoxia, Spontaneous breathing
- Behavioral
- Lead sponsor
- University of Texas at Austin
- Other
- Eligibility
- 18 Years to 80 Years
- Enrollment
- 20 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2021 – 2025
- U.S. locations
- 1
- States / cities
- Austin, Texas
- Conditions
- Ventilatory Depression, Opioid Intoxication, Opioid Toxicity
- Interventions
- Ventilatory chemosensitivity
- Diagnostic Test
- Lead sponsor
- Duke University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 10 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2019
- U.S. locations
- 1
- States / cities
- Durham, North Carolina
- Conditions
- Adiposity
- Interventions
- Exercise
- Other
- Lead sponsor
- Rockefeller University
- Other
- Eligibility
- 18 Years to 45 Years
- Enrollment
- 12 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024
- U.S. locations
- 1
- States / cities
- New York, New York