Anacor Pharmaceuticals announced positive results from a Phase 2 dose-ranging trial of its topical boron-based phosphodiesterase-4 inhibitor, AN2728. The study included 86 adolescents (ages 12 – 17) with mild-to-moderate atopic dermatitis, a chronic rash which predominantly affects children and is characterized by inflammation and itching. In this study, lesions treated with AN2728 ointment, 2.0% twice daily for 28 days achieved a 71% improvement from baseline in their Atopic Dermatitis Severity Index score, with 66% of lesions in this treatment group achieving total or partial clearance. AN2728 was generally safe and well-tolerated. Most adverse events were mild and largely unrelated to study drug.