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Pathophysiology of Orthostatic Intolerance

StatusActive, Not Recruiting
PhaseNot applicable
Started
View on ClinicalTrials.gov ↗

Record History

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  1. Publications: details revised at 1 of 1 entry
    • Eligibility criteria expanded, about 2 words
  2. Primary and study completion dates: Dec 2027 to Dec 2029
    • Secondary endpoints: details revised at 5 of 5 entries
    • Study description expanded, about 94 words
    • Collaborators shortened, about 5 words
    v23
  3. Primary and study completion dates: Dec 2025 to Dec 2027
    • Trial status: Recruiting to Active, Not Recruiting
    • Enrollment target: estimated 100 to confirmed 260
    • Site details revised
    v22
  4. 2 versions Re-verified since Sep 12, 2022, no change to tracked fieldsv20-v21
  5. Primary and study completion dates: Dec 2021 to Dec 2025v19
Show 17 earlier versionsHide 17 earlier versions
  1. Re-verified, no change to tracked fieldsv18
  2. Primary and study completion dates: Dec 2019 to Dec 2021v17
  3. Re-verified, no change to tracked fieldsv16
  4. Primary and study completion dates: Dec 2018 to Dec 2019v15
  5. Primary and study completion dates: Dec 2017 to Dec 2018v14
  6. 2 versions Re-verified since Dec 7, 2015, no change to tracked fieldsv12-v13
  7. Primary and study completion dates: Dec 2015 to Dec 2017v11
  8. Re-verified, no change to tracked fieldsv10
  9. Lead sponsor: Vanderbilt University to Satish R. Raj
    • Primary and study completion dates: Dec 2013 to Dec 2015
    v9
  10. Primary and study completion dates: Dec 2012 to Dec 2013v8
  11. Re-verified, no change to tracked fieldsv7
  12. Primary and study completion dates: Dec 2011 to Dec 2012v6
  13. 4 versions Re-verified since Mar 13, 2008, no change to tracked fieldsv2-v5
  1. Study First Submitted
  • Stopped: an ongoing trial was terminated, suspended or withdrawn.
  • Notable: the trial’s plan changed such as a big move in its timeline or size, a new primary endpoint, sponsor or phase, or recruiting opened or resumed.
  • Minor: routine progress and housekeeping, such as sites added or enrollment closed.
The purpose of this study is to describe the mechanism of orthostatic intolerance, relying on cardiovascular physiological studies. The syndrome is of undetermined etiology, but the syndrome causes impairment of a number of young adults, females more than males, with symptoms of tachycardia, fatigue, lightheadedness, palpitations, blurred vision, chest discomfort, difficulty concentrating, and dizziness with the upright posture. It is believed that many different pathophysiological processes can give rise to this disorder.
Trial Details
NCT Number NCT00608725
Lead Sponsor Satish R. Raj
Conditions
(from sponsor)		 Tachycardia, Postural Orthostatic Tachycardia Syndrome
Related terms Orthostatic Intolerance, Postural Orthostatic Tachycardia Syndrome, Tachycardia
Enrollment 260 participants
Start Date
Primary Completion (estimated)
Study Completion (estimated)
Updated on ClinicalTrials.gov