Sunesis Pharmaceuticals is a biopharmaceutical company focused on the development of new targeted inhibitors for the treatment of solid and hematologic cancers. The company's primary activities are conducting research and development internally and through corporate collaborators, in-licensing and out-licensing pharmaceutical compounds and technology and conducting clinical trials. The company's primary program is vecabrutinib, a non-covalent inhibitor of Bruton's Tyrosine Kinase. The company is also developing SNS-510, a phosphoinositide-dependent kinase-1 inhibitor licensed from Millennium Pharmaceuticals, Inc., a wholly-owned subsidiary of Takeda Pharmaceutical Company Limited.