RecruitingPhase 1Drug trialAn Engineered Sirpα Fused to Anti-Pd-L1 And Tgf-β Fusion Protein (HCB301) in Subjects With Selected Advanced TumorsThe purpose of this study is to find out whether IV injection of HCB301 is an effective treatment for different types of advanced solid tumors and relapsed and refractory classical Hodgkin lymphomas and what side effects (unwanted effects) may occur in subjects aged 18 years old and above.