Overview Trial Comparing the Effects of Intermittent Vismodegib vs. PDT in Patients With Multiple Basal Cell Carcinomas Status: Completed Trial end date: 2015-12-01 Target enrollment: Participant gender: Summary The purpose of this study is to evaluate and compare the safety and efficacy of intermittent vismodegib and of Photodynamic Therapy (PDT). Phase: Phase 2 Details Lead Sponsor: Children's Hospital & Research Center OaklandUCSF Benioff Children's Hospital OaklandCollaborator: Genentech, Inc.Treatments: Aminolevulinic AcidPharmaceutical Solutions