๐Ÿ›๏ธ Verified NIH Record โ€ข Updated 2026-07-14

Cardiovascular Autonomic and Immune Mechanism of Post COVID-19 Tachycardia Syndrome (NCT05421208)

๐Ÿ”ต Active, Not Recruiting Observational / Diagnostic ๐Ÿ“‹ Clinical Research Protocol Sponsor: Vanderbilt University Medical Center

๐Ÿฉบ Plain-English Summary (8th-Grade Level)

The term post-acute COVID-19 syndrome or Long COVID is a disabling syndrome that persists beyond the 3-month convalescence period after COVID-19 infections. This syndrome affects mostly women (\~80%), present with chronic tachycardia and Orthostatic intolerance symptoms without any identifiable cause. In addition, non-specific symptoms such as fatigue, headache, and "brain fog", commonly described in POTS patients are also present in this novel condition, recently named post-COVID-19 tachycardia syndrome, POTS variant. Reduced Vagal activity and unresolved inflammation is post-COVID-19 POTS is hypothesized as the cause of Long COVID

Who can join: To join this study, participants generally need to meet the listed inclusion criteria (2 items) and avoid the listed exclusions (15 items).

Location: Vanderbilt University Medical Center โ€” Nashville, Tennessee

๐Ÿ“‹ "Do I Qualify?" โ€” 1-Minute Self Screener

Instant Checklist

Check every box below. If you can check all of them, you may meet the study's basic screening requirements (final eligibility is confirmed by the site team).

Usually NOT eligible if any of the following apply:

  • Exclusion criteria:
  • Heart Disease: Myocardial Infarction, angina, heart failure
  • History of stroke, or transient ischemic attack
  • Undergone an invasive procedure for CVD (coronary artery bypass graft, angioplasty, valve replacement, pacemaker placement or other vascular surgeries)
  • Uncontrolled hypertension defined as persistent blood pressure \>140/90.
  • Post-menopausal women.
  • Diabetes Mellitus Type 1 or Type 2. ,
  • Impaired Hepatic function
  • Impaired renal function test (eGFR\<60 mL/min/1.73m2).
  • Ongoing substance abuse.
  • Mental conditions rendering a subject unable to understand the nature, scope and possible consequences of the study.
  • History of seizures.

๐Ÿ” Extracted verbatim from the official NIH eligibility criteria. Always confirm with the study coordinator.

๐Ÿ“ All Participating Trial Locations (1 Sites)

  • Vanderbilt University Medical Center โ€” Nashville, Tennessee

๐Ÿ’ฐ Cost, Insurance & Patient Rights

  • 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
  • Routine Patient Care: Under federal law (ACA ยง 2709) and many state statutes, routine care costs are covered during participation.
  • Voluntary Participation: You may withdraw at any time without affecting your standard medical care.
๐Ÿ›๏ธ View Official NIH Record โ†—