No treatment, just observation: large study looks at PNH blood cells

NCT ID NCT01192425

First seen Jun 26, 2026 ยท Last updated Jun 26, 2026

Summary

This completed study looked at red and white blood cells in people with a rare blood disorder called PNH who also have bone marrow failure. Over 5,500 participants aged 10 and older with aplastic anemia or related conditions provided blood samples. The goal was simply to learn more about the disease, not to test any treatment.

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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary โ€” we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

aplastic anemia Bone Marrow Failure Disorders hemoglobinuria Hemoglobinuria, Paroxysmal myelodysplastic syndrome Myelodysplastic Syndromes paroxysmal nocturnal hemoglobinuria

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.