
New Orleans — Results of a multicenter phase 4 study confirm the efficacy and safety of photodynamic therapy (PDT) using 20 percent 5-aminolevulinic acid (5-ALA) topical solution (Levulan Kerastick, DUSA) for the treatment of face and scalp non-hyperkeratotic actinic keratoses (AKs), according to Eduardo H. Tschen, M.D., who spoke at the 63rd Annual Meeting of the American Academy of Dermatology (AAD).
