Safety and feasibility of outpatient high-dose cytarabine (HIDAC) and intermediate-dose cytarabine (IDAC) for consolidation therapy in acute myeloid leukemia (AML).

Abstract

e18509 Background: Patients with acute myeloid leukemia (AML) who achieve complete remission with induction therapy require consolidation therapy. The standard of care consolidation is HIDAC or IDAC depending on age and risk stratification. Consolidation therapy has historically been administered in the inpatient setting. The rising cost of AML care has prompted institutions to consider shifting therapy to the outpatient setting. However, the safety and feasibility of outpatient HIDAC/IDAC consolidation therapy has not been established. Moffitt Cancer Center (MCC) developed an Inpatient/Outpatient (IPOP) program to facilitate administration of complicated regimens in the outpatient setting. We hypothesized that IPOP administration of HIDAC/IDAC consolidation therapy is safe and may have cost-savings implications. Methods: We conducted a retrospective chart review on AML patients who were 18 years or older and received HIDAC/IDAC consolidation therapy at MCC following induction therapy from January 1, 2015 to November 1, 2018. Data collected included age, risk stratification, treatment history, clinic visits, number of cycles received in the IPOP versus inpatient setting, supportive care, hospitalizations, and chemotherapy related adverse events. Results: 258 of 270 cycles of HIDAC/IDAC were delivered outpatient over the reviewed time period to 122 patients. 45 patients (37%) required hospitalization during consolidation with the primary reason being neutropenic fever (72%), consistent with historical data (50 to 90%). No patients receiving outpatient consolidation required hospitalization during chemotherapy. Specific details regarding administration of HIDAC/IDAC in IPOP, including infusion times, frequency of visits, laboratory frequency, supportive medications, and home antimicrobials will be reported. 1,290 hospital days were saved through IPOP administration. Financial assessment of cost-savings is being determined and will be reported. Conclusions: Outpatient administration of HIDAC/IDAC consolidation therapy for AML is a safe option for AML patients undergoing consolidation.