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In vitro antifungal activity of luliconazole (NND-502), a novel imidazole antifungal agent

Abstract

The in vitro activity of luliconazole (NND-502), a novel imidazole antifungal agent, against dermatophytes and several other groups of medically important fungi including the rare causative agents of dermatomycoses, was studied. The luliconazole susceptibility tests were performed with a total of 58 fungal strains of 23 species of fungi grouped into dermatophytes, dematiaceous fungi, hyaline hyphomycetes, yeastlike fungi, and zygomycetes using a broth microdilution method with RPMI 1640 medium. The minimum inhibitory concentration (MIC) values for luliconazole were compared with those of three reference drugs, lanoconazole (LCZ), bifonazole (BFZ), and terbinafine (TBF), all of which have been popular for the topical treatment of dermatophytosis, cutaneous candidiasis, and other superficial fungal infections in Japan. Luliconazole inhibited growth of all filamentous fungi except zygomycetes at low concentrations (MIC, ≦0.004–0.125 µg/ml), with dermatophytes being most susceptible (MIC, ≦0.004–0.008 µg/ml). The susceptibility of these filamentous fungi to luliconazole was almost equal to that to LCZ, and surpassed TBF and BFZ, although to a lesser extent; yeastlike fungi were also susceptible to luliconazole (MIC, 0.125–4 µg/ml). Again the antiyeastlike fungi activity of luliconazole was at the same level as LCZ and was greater than that of BFZ and TBF. In contrast to BFZ and TBF, however, luliconazole and LCZ were virtually inactive against zygomycetes.

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Correspondence to Katsuhisa Uchida.

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Uchida, K., Nishiyama, Y. & Yamaguchi, H. In vitro antifungal activity of luliconazole (NND-502), a novel imidazole antifungal agent. J Infect Chemother 10, 216–219 (2004). https://doi.org/10.1007/s10156-004-0327-1

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  • DOI: https://doi.org/10.1007/s10156-004-0327-1

Key words

  • Luliconazole (NND-502)
  • Imidazole
  • Antifungal spectrum
  • Dermatomycosis