BeiGene, Ltd. is a clinical-stage biopharmaceutical company. The Company is focused in the discovery and development of molecularly targeted and immuno-oncology drugs for the treatment of cancer. The Company had used its cancer biology platform to develop four clinical-stage drug candidates, such as BGB-3111, BGB-A317, BGB-290 and BGB-283, as of December 31, 2016. BGB-3111, BGB-290 and BGB-283 are its molecularly targeted agents and is its immuno-oncology agent. BGB-3111 is a potent and highly selective small molecule inhibitor of Bruton's tyrosine kinase (BTK). BGB-283 is a molecule inhibitor of both the monomer and dimer forms of the RAF kinase. BGB-290 is a molecularly targeted, orally available, potent and highly selective inhibitor of the poly ADP ribose polymerase (PARP) family members. BGB-A317 is an investigational humanized monoclonal antibody against the immune checkpoint receptor, PD-1.