In-vitro activity of voriconazole against Aspergillus spp. and comparison with itraconazole and amphotericin B
Oakley, K.L.; Moore, C.B.; Denning, D.W.
Journal of Antimicrobial ChemoTherapy 42(1): 91-94
ISSN/ISBN: 0305-7453 PMID: 9700534 DOI: 10.1093/jac/42.1.91
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.