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- Title
A phase I study of selinexor in combination with high-dose cytarabine and mitoxantrone for remission induction in patients with acute myeloid leukemia.
- Authors
Wang, Amy Y.; Weiner, Howard; Green, Margaret; Chang, Hua; Fulton, Noreen; Larson, Richard A.; Odenike, Olatoyosi; Artz, Andrew S.; Bishop, Michael R.; Godley, Lucy A.; Thirman, Michael J.; Kosuri, Satyajit; Churpek, Jane E.; Curran, Emily; Pettit, Kristen; Stock, Wendy; Liu, Hongtao
- Abstract
Background: Novel therapies for patients with acute myeloid leukemia (AML) are imperative, particularly for those with high-risk features. Selinexor, an exportin 1 (XPO1/CRM1) inhibitor, has demonstrated anti-leukemia activity as a single agent, as well as in combination with anthracyclines and/or DNA-damaging agents. Methods: We report the findings of a phase I dose escalation trial with cohort expansion in 20 patients with newly diagnosed or relapsed/refractory AML that combined selinexor with age-adjusted high-dose cytarabine and mitoxantrone (HiDAC/Mito). Results: Three (15%) patients received the initial dose of 60 mg of selinexor (∼ 35 mg/m2), and 17 (85%) received the target level of 80 mg (∼ 50 mg/m2). No dose-limiting toxicities were observed. Common adverse events included febrile neutropenia (70%), diarrhea (40%), anorexia (30%), electrolyte abnormalities (30%), bacteremia (25%) , cardiac toxicities (25%), fatigue (25%) and nausea/vomiting (25%). None were unexpected given the HiDAC/Mito regimen. Serious adverse events occurred in 6 (30%) patients; one was fatal. Ten (50%) patients achieved a complete remission (CR), 3 (15%) achieved CR with incomplete recovery (CRi), 1 (5%) achieved partial remission (PR), and 6 (30%) had progressive disease for an overall response rate (ORR) of 70%. Eight of 14 (57%) responders proceeded to allogeneic stem cell transplantation. Correlative studies of WT1 levels showed persistently detectable levels in patients who either did not respond or relapsed quickly after induction. Conclusion: The selinexor/HiDAC/Mito regimen is feasible and tolerable at selinexor doses of 80 mg/day (∼ 50 mg/ m2/day) twice weekly. The recommended phase II dose is 80 mg and warrants further study in this combination.
- Subjects
ACUTE myeloid leukemia; ANTHRACYCLINES; DNA damage; CLINICAL trials; MITOXANTRONE; REMISSION induction
- Publication
Journal of Hematology & Oncology, 2018, Vol 11, p1
- ISSN
1756-8722
- Publication type
Article
- DOI
10.1186/s13045-017-0550-8