“There continues to be a need for new drugs for the treatment of metastatic ER- positive, HER2-negative breast cancer and triple negative breast cancer,” said Joyce A. O’Shaughnessy, M.D., the Celebrating Women Chair in Breast Cancer Research at Baylor University Medical Center, Texas Oncology, and Chair of Breast Cancer Research for the US Oncology Network in Dallas, Texas. “The results from the clinical trials of alisertib in these two indications are encouraging and suggest that the drug may be able to provide a clinical benefit to these patient populations, and, due to its novel mechanism, alisertib may be able to provide a benefit in patients who have developed resistance to other treatments modalities,” said Dr. O’Shaughnessy.