In vitro activity of the new echinocandin antifungal, MK-0991, against common and uncommon clinical isolates of Candida species.
A broth macrodilution method, performed as recommended by the National Committee for Clinical Laboratory Standards, was used for comparative testing of the new echinocandin antifungal agent MK-0991 and fluconazole against 50 yeast isolates belonging to 12 species of Candida. MK-0991 was shown to be highly effective against both fluconazole-susceptible and -resistant Candida spp., yielding minimum inhibitory concentrations ranging from < or = 0.19 to 0.78 microg/ml. Fungicidal activity was exerted at < or = 1.5 microg/ml for 73% of the isolates tested. This study suggests that MK-0991 has significant potential for clinical development.
Barchiesi
F
F
Istituto di Malattie Infettive e Medicina Pubblica, Università degli Studi di Ancona, Ospedale Umberto I, Italy.
Schimizzi
A M
AM
Fothergill
A W
AW
Scalise
G
G
Rinaldi
M G
MG
D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D000935:Antifungal Agents / Q000494:pharmacology*; D002175:Candida / Q000187:drug effects* / Q000302:isolation & purification; D002177:Candidiasis / Q000382:microbiology; D000077336:Caspofungin; D054714:Echinocandins; D006801:Humans; D055666:Lipopeptides; D008826:Microbial Sensitivity Tests; D010455:Peptides; D010456:Peptides, Cyclic
D000900:Anti-Bacterial Agents; D000935:Antifungal Agents; D054714:Echinocandins; D055666:Lipopeptides; D010455:Peptides; D010456:Peptides, Cyclic; D000077336:Caspofungin