Shenzhen Zhongge Biotechnology Co. Ltd. has identified proteolysis targeting chimera (PROTAC) compounds comprising an E3 ubiquitin ligase binding moiety covalently linked to an interleukin-1 receptor-associated kinase 4 (IRAK-4) targeting moiety via a linker reported to be useful for the treatment of cancer, autoimmune disorders, inflammatory disorders, transplant rejection, thromboembolism, atherosclerosis, myocardial infarction and metabolic syndrome.