Levofloxacin to Prevent Bacterial Infection in Patients with Acute Myeloid Leukemia Treated By Azacitidine and Venetoclax: A Study from the Dataml Registry
Abstract
Introduction: Antibioprophylaxis in patients with cancer and neutropenia is controversial and is not a broadly recommended intervention in management of patients with hematological malignancies. Previous study showed that prophylactic treatment with levofloxacin (LEVO) is an effective and well-tolerated strategy to prevent febrile episodes and other relevant infection-related outcomes in patients with cancer and neutropenia, including acute leukemia ( Bucaneve et al., NEJM 2005). However, impact on microbial resistance discouraged the widespread use of this strategy., Venetoclax (VEN) and azacitidine (AZA) combination was recently approved in newly diagnosed patients with AML who are ineligible for intensive chemotherapy. VEN-AZA allowed higher rates of complete remission and longer overall survival but twice the incidence of febrile neutropenia compared to AZA alone making primary antibioprophylaxis a relevant question, especially in patients who are treated as outpatients or discharged after the seven days of AZA treatment. Methods: We retrospectively selected AML patients who received VEN-AZA treatment from the Toulouse-Bordeaux DATAML registry. The two centers have similar management protocols, but patients in Toulouse (but not in Bordeaux) receive antibacterial prophylaxis with LEVO 500 mg/day from day 11 during the neutropenia period following the 1 st course of VEN-AZA, until neutrophil recovery (>0.5 G/l). We included ≥ 18-year-old non-APL de novo or secondary AML…
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