This may be particularly the case with C. metapsilosis which displayed no activity when challenged with the caspofungin commercial powder. The results of this study highlight the importance of the species identification of the Candida being treated. The apparent lack of correlation between MIC and reduction in CFU/ml by time-kill methods is also concerning.
This work displays the fungistatic activity of the echinocandin antifungal agents on large number of clinical isolates that include C. parapsilosis and the newly identified C. orthopsilosis and C. metapsilosis and adds a large body of work to rapidly expanding area of research.