Overview Levulan PDT Versus Vehicle for Extremity Actinic Keratoses (AK) Status: Completed Trial end date: 2012-07-01 Target enrollment: Participant gender: Summary The purpose of this study is to determine if Levulan PDT is safe and effective in the treatment of actinic keratoses on the upper arms and hands. Phase: Phase 2 Details Lead Sponsor: DUSA Pharmaceuticals, Inc.Treatments: Aminolevulinic Acid