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  • Title: Activity of a Long-Acting Echinocandin (CD101) and Seven Comparator Antifungal Agents Tested against a Global Collection of Contemporary Invasive Fungal Isolates in the SENTRY 2014 Antifungal Surveillance Program.
    Author: Pfaller MA, Messer SA, Rhomberg PR, Castanheira M.
    Journal: Antimicrob Agents Chemother; 2017 Mar; 61(3):. PubMed ID: 28052853.
    Abstract:
    The activity of CD101 and comparator antifungal agents against 606 invasive fungal isolates collected worldwide during 2014 was evaluated using the Clinical and Laboratory Standards Institute (CLSI) method. All Candida albicans (n = 251), Candida tropicalis (n = 51), Candida krusei (n = 16), and Candida dubliniensis (n = 11) isolates were inhibited by ≤0.12 μg/ml of CD101 and were susceptible or showed wild-type susceptibility to the other echinocandins tested. Five C. glabrata isolates (n = 100) displayed CD101 MIC values of 1 to 4 μg/ml, had elevated MICs of caspofungin (2 to >8 μg/ml), anidulafungin (2 to 4 μg/ml), and micafungin (2 to 4 μg/ml), and carried mutations on fks1 and fks2Candida parapsilosis (n = 92) and Candida orthopsilosis (n = 10) displayed higher CD101 MIC values (ranges, 0.5 to 4 μg/ml and 0.12 to 2 μg/ml, respectively), and similar results were observed for the other echinocandins tested. Fluconazole resistance was noted among 11.0% of Candida glabrata isolates, 4.3% of C. parapsilosis isolates, and 2.0% of C. albicans and C. tropicalis isolates. The activity of CD101 against Aspergillus fumigatus (n = 56) was similar to that of micafungin and 2-fold greater than that of caspofungin but less than that of anidulafungin. These isolates had wild-type susceptibility to itraconazole, voriconazole, and posaconazole. The echinocandins had limited activity against Cryptococcus neoformans (n = 19). CD101 was as active as the other echinocandins against common fungal organisms recovered from patients with invasive fungal infections. The long half-life profile is very desirable for the prevention and treatment of serious fungal infections, especially in patients who can then be discharged from the hospital to complete antifungal therapy on an outpatient basis.
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