This study is for subjects that have been diagnosed with advanced solid cancer tumors or relapsed prostate cancer. The investigational drugs in this study are hydroxychloroquine, nelfinavir, metformin, dasatinib and sirolimus. The purpose of this study is to determine the safety and effectiveness of up to 5 study drugs used together for the treatment of cancer. Subjects can expect to be in this study for about 2.5 years.

TARGET-HCC is a 5-year, longitudinal, observational study of the natural history and management of patients with HCC. The study will address important clinical questions that remain unanswered in the management of HCC with a unique research registry of participants with HCC from academic and community real-world practices. TARGET-HCC is disease focused, not drug specific, which allows for continuous acquisition of real-world evidence regarding the natural history, management, and outcomes of treatment with current therapies and new treatments that may be utilized in usual clinical practice.