Disproportionately affecting women under 40, Black women and those with the BRCA1 gene mutation, triple-negative breast cancer is not fueled by hormones, rendering hormonal therapy and other traditional treatment options largely ineffective.

But now, a new clinical trial being conducted at Hoag Memorial Hospital Presbyterian could offer hope. It combines low-dose chemotherapy and immunotherapy with the introduction of “natural killer” stem cells, designed to attack and kill cancer, in patients with metastatic triple-negative breast cancer.

The study recently began accepting patients, who began undergoing treatment Sept. 27 and is on the second of 13 three-week therapy cycles.