FDA approves new treatment for thrombocytopenia in adults with chronic immune thrombocytopenia (ITP) - Drug Information Update

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The Food and Drug Administration approved fostamatinib disodium hexahydrate tablets (TAVALISSE™, Rigel Pharmaceuticals, Inc.) for the treatment of thrombocytopenia in adult patients with chronic immune thrombocytopenia (ITP) who have had an insufficient response to a previous treatment. The most common adverse reactions in at least 5% of patients treated with fostamatinib were diarrhea, hypertension, nausea, dizziness, alanine aminotransferase/aspartate aminotransferase (ALT/AST) increased, respiratory infection, rash, abdominal pain, fatigue, chest pain, and neutropenia. In the ITP double-blind studies, serious adverse drug reactions were febrile neutropenia, diarrhea, pneumonia, and hypertensive crisis, which each occurred in 1% of patients receiving fostamatinib. For more information, please visit: Tavalisse.