• Caleb J Scheckel, Megan Meyer, Jeffrey Alan Betcher, Aref Al-Kali, James Foran, and Jeanne Palmer.
• Division of Hematology and Medical Oncology, Department of Medicine, Mayo Clinic Minnesota, Rochester, MN, United States. Electronic address: Scheckel.caleb@mayo.edu.
• Leuk. Res. 2020 Mar 1; 90: 106300.

AbstractSalvage therapy regimens for refractory and relapsed AML include mitoxantrone, etoposide, and cytarabine (MEC) and cladribine, cytarabine, filgrastim, and mitoxantrone (CLAG-M). We analyzed patients receiving either CLAG-M or MEC as salvage therapy for RR-AML between 09/01/2009-12/31/2017. Of 150 patients with RR-AML, 34 patients received CLAG-M and 116 MEC. CR/CRi rates for CLAG-M and MEC were 61.3 % (19/31) and 55.6 % (60/108). Median OS was 9.5 months for CLAG-M and 10.0 months for MEC (HR = 0.88,95 %CI = 0.54-1.41,p = 0.59). 76 patients proceeded to ASCT following salvage therapy. Median OS after ASCT was 13.0 months for CLAG-M and 31.0 months for MEC (HR = 1.76,95 %CI = 0.87-3.56,p = 0.12). Among those with late relapse and ASCT, median OS was 9.0 and 48.0 months for CLAG-M and MEC, respectively (HR = 17.6,95 %CI = 1.57-198,p < 0.001). There were no significant differences in outcome between CLAG-M vs. MEC regardless of transplant status. There was a significant improvement in survival in patients with late relapse treated with MEC who proceeded to ASCT.Copyright © 2020 Elsevier Ltd. All rights reserved.

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