Spectrum Pharmaceuticals, Inc., a biopharmaceutical company, develops and commercializes oncology drug products. It offers ROLVEDON(Eflapegrastim), a novel long-acting granulocyte colony-stimulating factor for chemotherapy-induced neutropenia. The company develops Poziotinib, a novel irreversible tyrosine kinase inhibitor for non-small cell lung cancer tumors with various mutations. It has co-development, commercialization, and in-license agreements with Hanmi Pharmaceutical Co. Ltd.; a patent and technology license agreement with The University of Texas M.D. Anderson Cancer Center; and license agreement with Therapyx, Inc. The company was formerly known as NeoTherapeutics, Inc. and changed its name to Spectrum Pharmaceuticals, Inc. in December 2002. Spectrum Pharmaceuticals, Inc. was incorporated in 1987 and is headquartered in Boston, Massachusetts. As of July 31, 2023, Spectrum Pharmaceuticals, Inc. operates as a subsidiary of Assertio Holdings, Inc.