Tesetaxel has several potential therapeutic advantages over currently available taxanes, including: oral administration with a low pill burden and a patient-friendly dosing regimen; a formulation that does not contain solubilizing agents that are known to cause hypersensitivity (allergic) reactions; and improved activity against chemotherapy-resistant tumors. Tesetaxel has been generally well tolerated in clinical studies and has demonstrated robust single-agent antitumor activity in two Phase 2 studies in patients with locally advanced or metastatic breast cancer ("MBC").