Antifungal activity of the new agent latoconazole in two tinea models.

  • 1 August 1991
    • journal article
    • research article
    • Vol. 41  (8) , 847-51
Abstract
In vitro and in vivo antifungal activities of the new imidazole derivative latoconazole ((+-)-(E)-[4-(2-chlorophenyl)-1,3-dithiolan-2-ylidene]-1- imidazolylacetonitrile, NND-318; CAS 101530-10-3) were studied in comparison with three major topical agents, clotrimazole, bifonazole and tolnaftate. The in vitro activity of latoconazole against dermatophytes was much stronger than that of any reference agent tested. Both the recently developed tinea pedis model and the conventional tinea model in guinea pigs were employed for evaluation of topical usefulness of latoconazole. The 1% solution or cream preparation of latoconazole was highly effective in both of the two tinea models and its 5 or more doses achieved almost complete mycological cure. However, both tinea models, especially the former, were considerably resistant to the therapeutic treatment of all of the reference drugs. These results suggest that latoconazole is a promising topical antifungal agent, probably applicable to the treatment of tinea pedis as well as other types of dermatomycoses.

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