Treatment patterns and healthcare resource utilization in patients with FLT3-mutated and wild-type acute myeloid leukemia: A medical chart study

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Abstract

Objectives: To assess real-world treatment patterns and healthcare resource utilization (HRU) among patients with FLT3–mutated (FLT3 mut ) and FLT3–wild-type (FLT3 wt ) acute myeloid leukemia (AML). Methods: Data were abstracted from medical charts of patients with AML from 10 countries. Patients were grouped based on their FLT3 mutation status, age (18-64 or ≥65), and whether they were newly diagnosed (ND) or relapsed/refractory (R/R). Results: Charts of 1027 AML patients were included (183 FLT3 mut 18-64 ND; 136 FLT3 mut ≥65 ND; 181 FLT3 mut R/R; 186 FLT3 wt 18-64 ND; 159 FLT3 wt ≥65 ND; 182 FLT3 wt R/R). Substantial heterogeneity was observed in treatment patterns for AML. Among ND patients 18-64, the most common initial treatment was standard-to-intermediate dose cytarabine-based therapies (43.2% for FLT3 mut and 55.9% for FLT3 wt ); among ND patients ≥65, the most common initial treatment was hypomethylating agent-based therapies (36.0% and 47.2%). Among R/R patients, the most common initial treatment after R/R was best supportive care only (39.8% and 24.7%). HRU was substantial across cohorts during both event-free and post-event periods. Conclusions: Treatment patterns of AML were heterogeneous and FLT3 mut AML was treated more aggressively than FLT3 wt disease. HRU was substantial for all cohorts, particularly after relapse or treatment failure.

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Griffin, J. D., Yang, H., Song, Y., Kinrich, D., Shah, M. V., & Bui, C. N. (2019). Treatment patterns and healthcare resource utilization in patients with FLT3-mutated and wild-type acute myeloid leukemia: A medical chart study. European Journal of Haematology, 102(4), 341–350. https://doi.org/10.1111/ejh.13205

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