scopus: cited 31 times
web of science: cited 19 times
Efficacy and safety of retapamulin ointment as treatment of impetigo: randomized double-blind multicentre placebo-controlled trial
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BACKGROUND: Impetigo is a common skin infection, primarily caused by Staphylococcus aureus and mainly occurring in children. It is usually treated topically with antibiotics to achieve a quick cure and prevent spread of the infection. Worldwide, resistance rates of S. aureus against commonly used antibiotics are rising. Retapamulin belongs to a newly developed class of antibiotics for the treatment of uncomplicated skin infections. OBJECTIVES: Our aim was to compare the efficacy and safety of topical application of retapamulin ointment with topical placebo ointment in the treatment of primary impetigo. METHODS: In a randomized, double-blind, multicentre study, patients received either topical retapamulin ointment 1% twice daily for 5 days or topical placebo. Patients were enrolled into the study for 14 days and attended the clinic for three visits during which clinical and laboratory evaluations were performed. RESULTS: Two hundred and thirteen patients were randomized, with 139 evaluable patients in the retapamulin group and 71 in the placebo group. Based on the primary efficacy endpoint of clinical response after 7 days (intention to treat), retapamulin ointment was superior to placebo (success rate 85.6% vs. 52.1%; P<0.0001). Similar results were found in the per protocol analysis and in the subgroup of patients who had a pathogen isolated at baseline. The most common adverse effect, pruritus at the application site, was reported by 6% and 1% of patients in the retapamulin and placebo groups, respectively. CONCLUSIONS: This study shows that topical retapamulin is effective and safe in the treatment of primary impetigo, offering a new treatment option.