In vitro combination of Isavuconazole with Echinocandins against Azole-Susceptible and --Resistant Aspergillus spp. [PublishAheadOfPrint]

The in vitro combinations of isavuconazole with echinocandins were evaluated against 30 Aspergillus spp. by a two-dimensional checkerboard microdilution method and an agar-based diffusion method. With the checkerboard method, the three combinations showed indifferent interactions for all the strains. With the agar-based method, indifferent interactions were found for all the strains for isavuconazole-micafungin and isavuconazole-anidulafungin. For the isavuconazole-caspofungin combination, indifference was found in 24/30 strains, synergy in 4/30 strains, and antagonism in 2/30 strains.

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