In-vitro activity of voriconazole against Aspergillus spp. and comparison with itraconazole and amphotericin B.
The in-vitro activity of the triazole antifungal agent voriconazole was compared with itraconazole and amphotericin B against 60 aspergillus isolates. Susceptibility tests were performed using two methods: a macrodilution and a microdulution method. For macrodilution methodology, geometric mean (GM) MIC values and ranges were 0.4 and 0.125-4 mg/L for voriconazole, 0.24 and 0.06-->16 mg/L for itraconazole, and 1.04 and 0.5-4 mg/L for amphotericin B. For the microdilution method, GM MICs and ranges were 0.66 and 0.125-2 mg/L for voriconazole, 0.27 and 0.06-->16 mg/L for itraconazole, and 1.62 and 0.25-32 mg/L for amphotericin B. In conclusion, voriconazole is active against Aspergillus spp. in vitro, and at similar concentrations to itraconazole.
Department of Medicine, University of Manchester School of Medicine, Hope Hospital, UK.
K L
KL
Oakley
C B
CB
Moore
D W
DW
Denning
D000666:Amphotericin B / Q000494:pharmacology; D000935:Antifungal Agents / Q000494:pharmacology*; D001230:Aspergillus / Q000187:drug effects*; D017964:Itraconazole / Q000494:pharmacology; D008826:Microbial Sensitivity Tests; D011743:Pyrimidines / Q000494:pharmacology*; D014230:Triazoles / Q000494:pharmacology*; D065819:Voriconazole
D000935:Antifungal Agents; D011743:Pyrimidines; D014230:Triazoles; D017964:Itraconazole; D000666:Amphotericin B; D065819:Voriconazole