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Journal of Clinical Microbiology, January 1998, p. 198-202, Vol. 36, No. 1
Division of Infectious Diseases, Medical College of
Virginia, Virginia Commonwealth University, Richmond, Virginia
23298-0049
Received 17 July 1997/Returned for modification 26 September
1997/Accepted 14 October 1997
The in vitro antifungal activity of a new triazole derivative,
voriconazole, was compared with those of itraconazole and amphotericin B against 67 isolates of Aspergillus flavus,
Aspergillus fumigatus, Bipolaris spp.,
Fusarium oxysporum, Fusarium solani,
Pseudallescheria boydii, Rhizopus arrhizus,
Blastomyces dermatitidis, Histoplasma capsulatum, and Sporothrix schenckii. The in vitro
activities of voriconazole were also compared with those of
amphotericin B, fluconazole, and itraconazole against 189 isolates of
emerging and common yeast pathogens of Blastoschizomyces
capitatus, Candida (13 species), Cryptococcus
neoformans, Hansenula anomala, Rhodotorula rubra, Saccharomyces cerevisiae, Sporobolomyces
salmonicolor, and Trichosporon beigelii. MICs were
determined according to a procedure under evaluation by the National
Committee for Clinical Laboratory Standards (NCCLS) for broth
microdilution testing of filamentous fungi and by the NCCLS M27-A broth
microdilution method for yeasts. The in vitro activities of
voriconazole were similar to or better than those of itraconazole and
amphotericin B against Aspergillus spp.,
Fusarium spp., and P. boydii as well as against B. dermatitidis and H. capsulatum. The
activities of voriconazole were also comparable to or better than those
of amphotericin B, fluconazole, and itraconazole against most species
of yeasts tested. Exceptions were certain isolates of R. rubra and S. salmonicolor. These results suggest that
voriconazole has a wide spectrum of activity in vitro; its
effectiveness in the treatment of human mycoses is under evaluation in
clinical trials.
0095-1137/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.
In Vitro Activity of the New Triazole Voriconazole (UK-109,496)
against Opportunistic Filamentous and Dimorphic Fungi and Common
and Emerging Yeast Pathogens
*
Mailing address: Medical College of Virginia, Virginia
Commonwealth University, P.O. Box 980049, Richmond, VA 23219. Phone: (804) 828-9711. Fax: (804) 828-3097.
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