Study Shows Immunotherapy Drug Combination Improves Response in HER2-Negative Breast Cancer Including a Subset of Estrogen Receptor Positive Cancers

In a new study by researchers at Yale Cancer Center, combining the immunotherapy drug durvalumab and PARP-inhibitor olaparib with chemotherapy improved response to treatment for women with high-risk, HER2-negative breast cancer, including a subset of estrogen receptor positive cancers.