Eltrombopag for tyrosine kinase inhibitors-associated thrombocytopenia in chronic myeloid leukemia.

Abstract

Patients with newly diagnosed chronic-phase chronic myeloid leukemia (CP-CML) can develop cytopenias secondary to bone marrow hypoplasia after starting tyrosine kinase inhibitor (TKI) therapy. These adverse effects are usually transient, but cytopenias can persist in some patients. TKI-associated thrombocytopenia can develop in a significant proportion of CML patients and may require TKI dose reduction or dose interruptions. The thrombopoietin receptor agonist eltrombopag may improve thrombocytopenia in these patients, but the supporting literature for this approach is limited. Herein, we describe the case of a 56-year-old woman who developed persistent TKI-associated thrombocytopenia and intracranial hemorrhage. She could not tolerate full doses of imatinib and she failed to achieve a major molecular response (MMR). She responded to eltrombopag and platelet count improved, which allowed commencement and continuation of dasatinib as second-line TKI therapy, resulting in achievement of MMR. TKI-associated thrombocytopenia can cause serious bleeding and may also interfere with the management of CML by necessitating TKI dose interruption or reduction. Use of eltrombopag can help maintain adequate platelet counts and uninterrupted delivery of TKI therapy.

• Authors: Aamer Aleem, Ghazi Alotaibi, Zafar Iqbal, Abrar AlFaifi
• Journal: International journal of hematology (Int J Hematol) Vol. 118 Issue 2 Pg. 288-291 (Aug 2023) ISSN: 1865-3774 [Electronic] Japan
• PMID: 36892804 (Publication Type: Case Reports, Journal Article)
• Copyright: © 2023. Japanese Society of Hematology.

Chemical References

• eltrombopag
• Tyrosine Protein Kinase Inhibitors
• Imatinib Mesylate

Topics

• Humans
• Tyrosine Protein Kinase Inhibitors (adverse effects)
• Thrombocytopenia (chemically induced, drug therapy)
• Leukemia, Myelogenous, Chronic, BCR-ABL Positive (complications, drug therapy)
• Middle Aged
• Female
• Intracranial Hemorrhages
• Imatinib Mesylate (therapeutic use)
• Treatment Outcome