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The efficacy and toxicity of teicoplanin and vancomycin in the initial empirical antibiotic regimen in febrile, neutropenic patients with hematologic malignancies were compared in a prospective, randomized, unblinded, multicenter trial in the setting of 29 hematologic units in tertiary-care or university hospitals. A total of 635 consecutive febrile patients with hematologic malignancies and chemotherapy-induced neutropenia were randomly assigned to receive intravenously amikacin plus ceftazidime plus either teicoplanin at 6 mg/kg of body weight once daily or vancomycin at 1 g twice daily. An efficacy analysis was done for 527 evaluable patients: 275 treated with teicoplanin and 252 treated with vancomycin. Overall, successful outcomes were recorded for 78% of patients who received teicoplanin and 75% of those who were randomized to vancomycin (difference, 3%; 95% confidence interval [CI], -10 to 4%; P = 0.33). A total of 102 patients presented with primary, single-agent, gram-positive bacteremia. Coagulase-negative staphylococci accounted for 42%, Staphylococcus aureus accounted for 27%, and streptococci accounted for 21% of all gram-positive blood isolates. The overall responses to therapy of gram-positive bacteremias were 92 and 87% for teicoplanin and vancomycin, respectively (difference, 5%; CI, -17 to 6%; P = 0.22). Side effects, mainly represented by skin rash, occurred in 3.2 and 8% of teicoplanin- and vancomycin-treated patients, respectively (difference, -4.8%; CI, 0.7 to 8%; P = 0.03); the rate of nephrotoxicity was 1.4 and 0.8% for the teicoplanin and vancomycin groups, respectively (difference, 0.6%; CI, -2 to 1%; P = 0.68). Further infections were caused by gram-positive organisms in two patients (0.7%) treated with teicoplanin and one patient (0.4%) who received vancomycin (difference, 0.3%; CI, -0.9 to 1.0%; P = 0.53). Overall mortalities were 8.5 and 11% for teicoplanin- and vancomycin-treated patients, respectively (difference, -2.5%; CI, - 2 to 7%; P = 0.43); death was caused by primary gram-positive infections in three patients (1%) in each treatment group. When used for initial empirical antibiotic therapy in febrile, neutropenic patients, teicoplanin was at least as efficacious as vancomycin, but it was associated with fewer side effects.

antimicrobial agents and chemotherapy

Effects of teicoplanin and those of vancomycin in initial empirical antibiotic regimen for febrile, neutropenic patients with hematologic malignancies. Gimema Infection Program