Y-mAbs Therapeutics, Inc., a commercial-stage biopharmaceutical company, focuses on the development and commercialization of radioimmunotherapy and antibody based therapeutic products for the treatment of cancer. It offers DANYELZA, a monoclonal antibody in combination with granulocyte-macrophage colony-stimulating factor for the treatment of pediatric patients with relapsed or refractory high-risk neuroblastoma in the bone or bone marrow. The company also develops DANYELZA for the treatment of patients with second-line relapsed osteosarcoma and is in Phase II clinical study; GD2-SADA, which is in Phase I clinical trial for the treatment of GD2 positive solid tumors; and Omburtamab, an antibody for the treatment of central nervous system/leptomeningeal metastases from neuroblastoma. In addition, it engages in the development of CD38-SADA and GD2-GD3 Vaccine; and offers self-assembly disassembly pretargeted radioimmuno therapy (SADA PRIT) technology platform to deliver the radioactive payload to the tumor.