Multidrug therapy with terbinafine plus daily fluconazole is more effective than terbinafine alone or terbinafine plus weekly fluconazole in current epidemic of altered dermatophytosis in India: Results of a randomized pragmatic trial

Abstract

Abstract Background Treatment responsiveness of tinea has decreased considerably in recent past in India. We tested effectiveness of oral terbinafine daily plus fluconazole weekly (TFw) and terbinafine daily plus fluconazole daily (TFd) versus oral terbinafine daily (T) in tinea corporis, tinea cruris and tinea faciei in a pragmatic randomized open trial. Methods One hundred and seventeen microscopy confirmed patients were allocated to T (6 mg/kg/day), TFw (terbinafine 6 mg/kg/day+fluconazole 12 mg/kg once weekly), or TFd (terbinafine 6 mg/kg/day+fluconazole 6 mg/kg/day) groups by concealed randomization and treated for 8 weeks or cure. Each group included 39 patients. Results At 4 weeks, 9 (23.1%), 8 (20.5%) and 14 (35.9%) patients were cured in T, TFw and TFd groups, respectively (P=0.279). At 8 weeks, number of patients cured was as follows: T 13 (33.3%), TFw 18 (46.2%) and TFd 25 (64.1%). TFd was more effective than T (P=0.012), other comparisons were not significantly different. However, effect size as calculated by number needed to treat (NNT) (versus terbinafine) was 8 for TFw and 4 for TFd. Relapse rates one month after cure were similar in all groups (P=0.664). Conclusions In view of cure rates and NNT, terbinafine plus daily fluconazole is more effective than terbinafine alone or terbinafine plus weekly fluconazole in current epidemic of altered dermatophytosis in India. One Sentence Summary Terbinafine plus daily fluconazole is more effective than terbinafine alone or terbinafine plus weekly fluconazole in current epidemic of altered dermatophytosis in India.

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