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Refractory ITP TPO-RA — RACP Adult Medicine MCQ

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HardHaematologyRefractory ITP TPO-RARACP Adult Medicine

A 55-year-old with chronic immune thrombocytopenia relapses after corticosteroid and IV immunoglobulin. He wishes to avoid surgery and prolonged broad immunosuppression. Which second-line class is particularly suitable?

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Correct answer: BA thrombopoietin-receptor agonist with ongoing platelet and thrombosis monitoring

The best answer is “A thrombopoietin-receptor agonist with ongoing platelet and thrombosis monitoring”. TPO-receptor agonists such as eltrombopag or romiplostim are effective second-line options and align with a preference to avoid splenectomy and broad immunosuppression. They require monitoring and usually maintain rather than permanently cure ITP. Rituximab and splenectomy remain alternatives according to duration, comorbidity and preference; chronic high-dose steroid and routine transfusion are harmful.

Reference: Medical Journal of Australia: Adult immune thrombocytopenia consensus guideline: https://www.mja.com.au/journal/2022/216/1/consensus-guidelines-management-adult-immune-thrombocytopenia-australia-and-new