Myeloproliferative neoplasm medical therapy

Myeloproliferative Neoplasm Microchapters
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Mohamad Alkateb, MBBCh [2]

Overview

The mainstay of therapy for myeloproliferative neoplasm is chemotherapy, aspirin, and palliative care. Treatment is directed at reducing the excessive numbers of blood cells.

Medical Therapy

Medical therapy for myeloproliferative neoplasm is based on the specific subtype of myeloproliferative neoplasm.

Polycythemia vera

Therapy	Mechanism of Action	Dosing	Adverse Effects
Aspirin	Irreversibly inhibits cyclooxygenase-1 and -2 (COX-1 and COX-2)	81mg PO daily	Mucosal bleeding Gastrointestinal bleeding
Hydroxyurea	Inhibits ribonucleotide reductase	20mg/kg PO daily	Anemia, thrombocytopenia, ulcerations, secondary cancers
Ruxolitinib	Inhibits JAK2 (tyrosine kinase inhibitor)	10mg PO twice daily	Weight gain, zoster, non-melanoma skin cancers, cytopenias
Phlebotomy	Mechnically removes red blood cells from circulation	Induction: 450cc blood removal daily until hematocrit < 45% Maintenance: One session every 2 months, with goal hematocrit < 45%	Iron deficiency anemia, fatigue, vasovagal episodes, pain at phlebotomy site