• M Subirà, R Martino, A Sureda, A Altés, J Briones, S Brunet, and J Sierra.
• Division of Clinical Hematology, Department of Hematology, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain. msubira@hsp.santpau.es
• Methods Find Exp Clin Pharmacol. 2001 Nov 1; 23 (9): 505-10.

AbstractAmphotericin B lipid complex (ABLC) has been investigated as an empirical antifungal treatment for neutropenic patients with persistent fever of unknown origin (FUO). We studied the safety and efficacy of low dose ABLC (1 mg/kg/day) for empirical treatment of neutropenic FUO. Sixty-one patients with hematologic malignancies developing 69 episodes of neutropenic FUO after chemotherapy or hematopoietic stem cell transplantation were included in the study. The median patient age was 47 years (18-68). The median duration of neutropenia (< 0.5 x 10(9)/l) was 17 days (7-45) and the median duration of ABLC therapy was 8 days (2-19). Thirteen patients (19%) suffered from mild to moderate infusion-related adverse events. Creatinine levels were stable in 42 cases (61%), improved in 9 (13%) and deteriorated in 18 (26%), with no other significant toxicities. Among 67 evaluable episodes, the response rate (resolution of fever during the period of neutropenia without developing a fungal infection) was 67%, while 33% were treatment failures. Low-dose ABLC is safe, well tolerated and seems to be at least as effective as c-AmB for empirical antifungal therapy of FUO. Randomized trials at this dose level comparing ABLC with c-AmB or other lipid formulations are warranted.

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