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Naftifine Hydrochloride Gel 2%: An Effective Topical Treatment for Moccasin-Type Tinea Pedis

Naftifine Hydrochloride Gel 2%: An Effective Topical Treatment for Moccasin-Type Tinea Pedis

Linda F Stein Gold, Tracey Vlahovic, Amit Verma, Babajide Olayinka, Alan B Fleischer Jr

J Drugs Dermatol. 2015 Oct;14(10):1138-44.

PMID: 26461826

Abstract:

Background:
Naftifine hydrochloride (naftifine) is a topical antifungal of the allylamine class, displaying fungicidal and fungistatic activity. Naftifine is generally used to treat interdigital tinea pedis; however, systemic therapy is often prescribed by healthcare providers for moccasin tinea pedis. Well-controlled clinical data on topical antifungal therapy for moccasin tinea pedis is limited.
Objective:
The objective of this analysis is to present data from two pooled randomized, vehicle-controlled studies that evaluated efficacy of once daily topical naftifine gel 2% and vehicle at end of treatment (week 2) and at 4 weeks post-treatment in subjects with moccasin tinea pedis.
Methods:
At visit 1, subjects were randomized to naftifine gel 2% or vehicle groups and subjects underwent baseline mycology culture, KOH, and symptom (erythema, scaling, and pruritus) severity grading. Naftifine gel 2% and vehicle treatment were applied once daily for 2 weeks and the subjects returned at weeks 2 and 6 for efficacy evaluation (mycology culture and grading of symptom severity). A total of 1174 subjects were enrolled with interdigital tinea pedis with or without moccasin infection. Of these subjects, 674 subjects had interdigital presentation while 500 subjects had moccasin infection in addition to the interdigital presentation. All 1174 subjects with interdigital presentation satisfied the inclusion criteria of a minimum of moderate erythema and scaling, and mild pruritus. Of the 500 subjects who had moccasin presentation, 380 satisfied the same inclusion criteria as mentioned above. Since data was analyzed as observed cases, between 337 and 349 subjects had data available for analysis of efficacy. Mycologic cure is defined as a negative dermatophyte culture and KOH, treatment effectiveness is defined as mycologic cure and symptom severity scores of 0 or 1, and complete cure is defined as mycologic cure and symptoms severity scores of 0.
Results:
At week 6, the cure rates in the naftifine arm vs. the vehicle were statistically higher (P < 0.0001) for mycological cure rate (65.8% vs. 7.8%), treatment effectiveness (51.4% vs 4.4%), and complete cure rate (19.2% vs 0.9%).
Conclusion:
Two weeks application of topical naftifine gel 2% is an effective monotherapy treatment for moccasin tinea pedis.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP65473145	Naftifine hydrochloride		65473-14-5	Price

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