Study of Autologous Tumor-Draining Lymph Node-Derived Lymphocytes for Advanced HER2-Negative Breast Cancer

RATIONALE: Patients with HER2-negative advanced breast cancer have limited choice on targeted therapies, and often show only modest responses to available immunotherapies. Adoptive cell therapy with tumor-infiltrating lymphocytes has difficulties in preparing enough cells from solid tumors and overcoming the exhaustion and dysfunction of T cells, which limit its clinical use. Tumor-draining lymph node-derived lymphocytes (LNLs) that have abundant tumor-specific T cells, rather than exhausted T cells, are easier to produce. It is not yet known whether LNL treatment is safe and effective in patients with advanced HER2-negative breast cancer. PURPOSE: This open-label phase I/II trial is to study the safety and efficacy of autologous LNL in patients with advanced HER2-negative breast cancer.