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J Eur Acad Dermatol Venereol. 2006 Nov;20(10):1307-13.

Efficacy and safety of a new single-dose terbinafine 1% formulation in patients with tinea pedis (athlete's foot): a randomized, double-blind, placebo-controlled study.

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  • 1Dermatology Department, Hôpital l'Archet 2, Nice, France, and Department of Dermatology, Ludwig Maximillians University, Munich, Germany.



Tinea pedis is a common dermatophyte infection with frequent recurrences. Terbinafine (presently used as a 1-week topical treatment of tinea pedis) is now available in a novel topical solution (film-forming solution--FFS), developed to allow single application.


To demonstrate the efficacy and safety of terbinafine 1% FFS in a randomized, double-blind, placebo-controlled, phase III trial, and to determine relapse or re-infection rate of tinea pedis at 12 weeks.


Fifty-four centres (27 in France; 27 in Germany) enrolled 273 evaluable patients (2 : 1 randomization). Patients applied terbinafine 1% FFS or placebo only once between, under and over the toes, soles and sides of both feet. Efficacy assessments included direct microscopy, mycological culture, and clinical signs and symptoms at baseline, and at weeks 1, 6 and 12 after the single drug application.


Effective treatment (negative mycology plus absent/minimal symptoms) at week 6 in the terbinafine 1% FFS group was 63%; vehicle was 17% (P<or=0.0001). Mycological cure was 72% in the terbinafine group and 21% in the placebo (P<or=0.0001) at week 6. Clinical signs/symptoms decreased significantly in the active group compared to the placebo. The self-assessment of itching and burning sensation by the patient showed a clear reduction in symptoms starting 15 min after treatment application (this could be attributed to the cooling effect of the FFS). Recurrence (positive culture at 3 months) occurred in 12.5% of the effectively treated patients at week 6 in the terbinafine group. FFS was well tolerated.


Terbinafine 1% FFS, single dose application is an effective, safe and convenient treatment for tinea pedis. The relapse/re-infection rate 3 months after the end of single-dose therapy is similar to that previously demonstrated in a study using terbinafine 1% cream for 7 days.

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