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Treatment of seborrhoeic dermatitis of the scalp with a topical solution of urea, lactic acid, and propylene glycol (K301): results of two double‐blind, randomised, placebo‐controlled studies

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Summary  Alternative treatments for seborrhoeic dermatitis are needed because of the increasing risk of anti‐fungal resistance to existing therapies. To investigate the efficacy, safety and tolerability of topical scalp treatment with K301 solution. Two multi‐centre, randomised, double‐blind studies were conducted. Study I: 4 weeks of once‐daily treatment with either one form of K301 (a or b) or placebo, followed by 4 weeks of maintenance treatment three times‐per‐week. Study II: 4 weeks of K301 (a) or placebo once‐daily. Study I: 98 patients enrolled (K301a + b, n = 51; placebo, n = 47) and 83 completed; 201 entered Study II (K301a, n = 136; placebo, n = 65) and 195 completed. Erythema and desquamation sum score at 4 weeks, mean (SD) values were 2.4 (2.0) for K301a+ b and 3.2 (2.2) for placebo in Study I (P = 0.025) and 2.5 (1.9) for K301a and 3.2 (1.8) for placebo in Study II (not significant). In both studies, 4‐week desquamation scores were significantly improved for K301 vs. placebo (P < 0.05). Both studies showed significant improvements in symptomatic investigator and patient assessments for K301 over placebo after 4 weeks (P < 0.05). Treatment‐related adverse events were generally mild and included some smarting or burning upon application. The K301 was well tolerated and associated with clinically meaningful improvements in seborrhoeic dermatitis endpoints.
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Document Type: Research Article

Affiliations: 1: Department of Dermatology & Venereology, Karolinska University Hospital, Stockholm, Sweden 2: Department of Dermatology, Malmö University Hospital, Malmö, Sweden 3: Moberg Derma AB, Solna, Sweden

Publication date: September 1, 2012

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