Puma Biotechnology, Inc. is a biopharmaceutical company with a focus on the development and commercialization of products to enhance cancer care. The Company is commercializing NERLYNX, an oral version of neratinib, for the treatment of certain HER2-positive breast cancers. NERLYNX is approved in the United States for two indications: the extended adjuvant treatment of adult patients with early stage HER2-overexpressed/amplified breast cancer following adjuvant trastuzumab-based therapy and for use in combination with capecitabine for the treatment of adult patients with advanced or metastatic HER2-positive breast cancer who have received two or more prior anti-HER2-based regimens in the metastatic setting. The Company is focused on the global development and commercialization of alisertib. Alisertib is a selective, small-molecule inhibitor of Aurora Kinase A that is designed to disrupt mitosis, leading to apoptosis of rapidly proliferating tumor cells.