Yamazumi T, Pfaller M A, Messer S A, Houston A, Hollis R J, Jones R N
Medical Microbiology Division, Department of Pathology, University of Iowa College of Medicine, Iowa City, Iowa 52242, USA.
Antimicrob Agents Chemother. 2000 Oct;44(10):2883-6. doi: 10.1128/AAC.44.10.2883-2886.2000.
The in vitro activities of the new triazole, ravuconazole (BMS-207147), were compared to those of fluconazole and itraconazole against 541 clinical isolates of Cryptococcus neoformans. Isolates were obtained from cerebrospinal fluid (396), blood (116), and miscellaneous clinical specimens (29). Overall, ravuconazole (MIC at which 90% of the isolates are inhibited [MIC(90)], 0.25 microg/ml) was more active than either itraconazole (MIC(90), 0.5 microg/ml) or fluconazole (MIC(90), 8 microg/ml). Among the isolates inhibited by > or =16 microg of fluconazole/ml, 90.2% were inhibited by < or =1 microg of ravuconazole/ml. On the basis of our findings and the favorable pharmacokinetic properties of ravuconazole, we suggest that ravuconazole may be useful for the treatment of infectious diseases due to C. neoformans and that further clinical studies to confirm these promising in vitro results are warranted.
将新型三唑类药物ravuconazole(BMS - 207147)的体外活性与氟康唑和伊曲康唑针对541株新型隐球菌临床分离株的活性进行了比较。分离株取自脑脊液(396株)、血液(116株)和其他临床标本(29株)。总体而言,ravuconazole(使90%的分离株受到抑制的最低抑菌浓度[MIC(90)]为0.25μg/ml)比伊曲康唑(MIC(90)为0.5μg/ml)或氟康唑(MIC(90)为8μg/ml)活性更强。在被≥16μg/ml氟康唑抑制的分离株中,90.2%被≤1μg/ml的ravuconazole抑制。基于我们的研究结果以及ravuconazole良好的药代动力学特性,我们认为ravuconazole可能对治疗新型隐球菌引起的传染病有用,并且有必要进行进一步的临床研究以证实这些有前景的体外研究结果。