Basal cell carcinoma is a type of skin cancer. In this study, researchers are studying the different types of treatments received by patients with advanced basal cell carcinoma (cancer which has spread further into the skin or to other organs) or basal cell carcinoma nevus syndrome (a genetic condition that puts people at a higher risk of skin cancer). They want to see which treatments patients receive, and how safe and effective these treatments are.
Participants in this study will receive regular medical care; they will not receive an investigational treatment. Researchers will gather information about these therapies as well as patients’ lifestyle factors, other medical conditions, other medications they may be taking, and their day-to-day activities.