OXS-2175 is a small molecule therapeutic candidate that has shown promise in early-stage preclinical in vitro and in vivo models of triple-negative breast cancer. We are investigating OXS-2175 formulated as an infusible therapy and as part of an ADC infusible therapy for the treatment of triple-negative breast cancer.

Market Need — Triple-Negative Breast Cancer

According to the American Cancer Society there were approximately 231,840 new cases of invasive breast cancer last year in the USA and 40,290 deaths from breast cancer during the same period. Women represent 99% of all breast cancer patients. Breast cancer is treated by various combinations of surgery, radiation therapy, chemotherapy, and hormone therapy. TNBC is a type of breast cancer characterized by breast cancer cells that do not express estrogen receptors, progesterone receptors, or large amounts of HER2/neu protein. Approximately 10% - 20% percent of invasive breast cancers are diagnosed as triple-negative breast cancers. TNBC is more likely to affect younger people, African Americans or Hispanics, and those with a BRCA1 gene mutation. TNBC is insensitive to many of the most effective therapies available for the treatment of breast cancer including the HER2-directed therapy Herceptin® (trastuzumab), and endocrine therapies such as tamoxifen or the aromatase inhibitors. The relapse and survival rates of TNBC patients are shorter than for patients with other types of breast cancer. There is no current or pending drug therapy available for the treatment of TNBC.