Iron Sucrose in Adolescents With Iron Deficiency and Postural Orthostatic Tachycardia Syndrome (POTS)


  • Study type

  • Study phase

  • Study IDs

  • Describes the nature of a clinical study. Types include:

    • Observational study — observes people and measures outcomes without affecting results.
    • Interventional study (clinical trial) — studies new tests, treatments, drugs, surgical procedures or devices.
    • Medical records research — uses historical information collected from medical records of large groups of people to study how diseases progress and which treatments and surgeries work best.
  • During the early phases (phases 1 and 2), researchers assess safety, side effects, optimal dosages and risks/benefits. In the later phase (phase 3), researchers study whether the treatment works better than the current standard therapy. They also compare the safety of the new treatment with that of current treatments. Phase 3 trials include large numbers of people to make sure that the result is valid. There are also less common very early (phase 0) and later (phase 4) phases. Phase 0 trials are small trials that help researchers decide if a new agent should be tested in a phase 1 trial. Phase 4 trials look at long-term safety and effectiveness, after a new treatment has been approved and is on the market.

  • Site IRB
    • Rochester, Minnesota: 12-009963
    NCT ID: NCT01978535
    Sponsor Protocol Number: 12-009963

About this study

This study is designed to investigate whether the treatment of non-anemic iron deficiency with intervenous iron sucrose will result in decreased symptom reporting and improved cardiovascular indices in adolescents (age 12-18) with Postural Orthostatic Tachycardia Syndrome (POTS).

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. If you need assistance understanding the eligibility criteria, please contact the study team.

See eligibility criteria

Inclusion criteria

  • aged 12-21 years
  • chronic (>3 months)symptoms of orthostatic intolerance (including but not limited to lightheadedness, syncope, headache, fatigue, weakness, sweating, nausea and palpitations)
  • symptomatic orthostatic heart rate increase of greater than or equal to 40 beats per minute during a 10 minute 70 degree head up tilt study
  • presence of non-anemic iron deficiency, defined as serum ferritin level less than or equal to 20 mcg/L with normal hemoglobin

Exclusion criteria

  • orthostatic hypotension within 3 minutes of 70 degree head up tilt
  • pregnant or lactating females
  • presence of other organ failure or systemic illness that can affect autonomic function
  • concurrent medication therapy with anticholinergic, alpha-adrenergic antagonists, beta-adrenergic antagonists unless medication is held for five half-lives prior to study
  • laboratory evidence of significant anemia, as defined by a hemoglobin level 1 gm/dL or more below the normal reference range for the patient’s age and gender,
  • Iron overload
  • personal history of hematochromatosis or first degree relative with hematochromatosis
  • known sensitivity to Venofer (TM) or other intravenous iron preparations

Participating Mayo Clinic locations

Study statuses change often. Please contact us for help.

Mayo Clinic Location Status

Rochester, Minn.

Mayo Clinic principal investigator

Amie Jones, M.D.

Closed for enrollment


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