- Conditions
- Postural Orthostatic Tachycardia Syndrome, Acute Hepatic Porphyria
- Interventions
- Autonomic Function Testing, Genetic Testing, Urine Testing, Blood laboratory Testing
- Diagnostic Test
- Lead sponsor
- Vanderbilt University Medical Center
- Other
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 70 participants
- Timeline
- 2022 – 2026
- U.S. locations
- 1
- States / cities
- Nashville, Tennessee
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- Conditions
- Iron Overload
- Interventions
- Serum Ferritin level, Serum Ferritin iron content, Urine Ferritin level, Urine ferritin iron content
- Diagnostic Test
- Lead sponsor
- University of Utah
- Other
- Eligibility
- 1 Year to 17 Years
- Enrollment
- 11 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019
- U.S. locations
- 1
- States / cities
- Salt Lake City, Utah
- Conditions
- Sickle Cell Disease, Hemolytic Anemia
- Interventions
- Clinical Evaluations, Laboratory Studies
- Procedure · Other
- Lead sponsor
- St. Jude Children's Research Hospital
- Other
- Eligibility
- 5 Years and older
- Enrollment
- 390 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2016
- U.S. locations
- 1
- States / cities
- Memphis, Tennessee