Figure 1.

Platelet response to fostamatinib use over time. All patients were started on a dose of 100 mg orally twice daily. A dose increase to 150 mg twice daily was required in patient 3 and patient 5, denoted by the vertical arrow (↓). The administration of rescue therapy with either dexamethasone only (patient 3) or dexamethasone and IVIG (patient 5) is denoted by the asterisk (∗).