Curadev Pharma Ltd. has patented proteolysis targeting chimeras (PROTACs) comprising an E3 ubiquitin ligase coupled to mitogen-activated protein kinase kinase kinase kinase 1 (MAP4K1; HPK1; MEKKK1)-targeting agent via linker acting as HPK1 inhibitors and thus reported to be useful for the treatment of cancer, viral infections and immunological disorders.