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Elizabeth J Davis,1 Rashmi Chugh2 1Department of Internal Medicine, Division of Hematology/Oncology, Vanderbilt University Medical Center, Nashville, TN, 2Department of Internal Medicine, Division of Hematology/Oncology, University of Michigan, Ann Arbor, MI, USA Abstract: Soft-tissue sarcoma (STS) is a heterogeneous group of tumors that arise from mesenchymal tissue. The prognosis of metastatic STS is poor with a life expectancy of 12–18 months. The mainstay of treatment is chemotherapy with an anthracycline. The addition of other chemotherapeutic agents to an anthracycline has been studied with limited success in improving outcomes for STS patients. Olaratumab is a fully human IgG1 monoclonal antibody that binds to platelet-derived growth factor receptor α (PDGFR-α) preventing binding of its ligands and receptor activation. This drug recently received the US Food and Drug Administration’s accelerated approval for the treatment of advanced STS when combined with doxorubicin. This approval was based upon an improvement in overall survival of patients receiving the combination of doxorubicin and olaratumab compared to those receiving doxorubicin alone. In this review, we have analyzed the available literature on the development of olaratumab, its clinical utility, and its place in therapy. Based on early-phase clinical trials, olaratumab appears to be a promising agent for the treatment of STS. Keywords: olaratumab, doxorubicin, PDGFR-α, soft-tissue sarcoma |
