TIL Gean Therapy Combined With Immunotherapy for Advanced or Metastatic Refractory Breast Cancer

Tumor-infiltrating lymphocytes (TILs) therapy is an advanced form of adoptive cell therapy that harnesses the patient's immune cells to fight cancer. This therapy involves extracting lymphocytes from the tumor, expanding them ex vivo, and reinfusing them into the patient to target and kill cancer cells. This study focuses on combining TIL therapy with Pembrolizumab (Keytruda) and Aldesleukin (IL-2) to enhance the anti-tumor immune response in patients with advanced or metastatic refractory breast cancer, conditions that typically have a poor prognosis and limited treatment options. This trial involves a multi-step treatment process. First, tumor samples are collected from patients for TIL extraction. Following this, a lymphodepletion regimen using cyclophosphamide and fludarabine is administered to prepare the body for the infusion of expanded autologous TILs. After the TIL infusion, Aldesleukin (IL-2) is given to stimulate the TILs' activity. Pembrolizumab (Keytruda), an immunotherapy that targets the PD-1 receptor on T cells, is also administered to further enhance the immune response against the tumor. The primary goal of this trial is to determine the objective response rate (ORR) of this combined therapy. Secondary endpoints include the disease control rate (DCR), progression-free survival (PFS), overall survival (OS), duration of response (DOR), and changes in the quality of life (QoL) of patients. Patients will be closely monitored for side effects and reactions during their hospital stay and throughout the follow-up period. Safety will be assessed based on the incidence and severity of adverse events, while efficacy will be evaluated using RECIST v1.1 criteria. By leveraging the patient's own immune cells and combining them with advanced immunotherapies, this trial aims to provide a novel, personalized treatment option for patients with advanced or metastatic refractory breast cancer.