To evaluate the efficacy and safety of compound preparation Biolosion in combination with standard neoadjuvant therapy for locally advanced triple-negative breast cancer
Women aged 1.18 years and above, diagnosed with triple-negative breast cancer (ER≤10%, PR≤10%, HER-2 negative) by pathology;
Patients must have tumor specimens (formalin-fixed, paraffin-embedded, or fresh pre-treated tumor tissue) available for PD-L1 expression testing;
Researchers assess indications for neoadjuvant chemotherapy, with staging from IIA to IIIC, based on imaging or pathological evaluation of cT1c, N1-3, or cT2~cT4, cN0~N3, and patients with no distant metastasis as evaluated by imaging;
Patients must not have received chemotherapy or targeted therapy for advanced breast cancer;
There is a clear distant transfer;
A history of autoimmune diseases;
Acute or chronic active hepatitis B (defined as positive hepatitis B surface antigen and/or hepatitis B core antibody, with hepatitis B virus DNA copy number ≥1×10³ copies/ml or ≥200 IU/ml) or positive antibodies for acute or chronic active hepatitis C, with positive hepatitis C antibodies but negative RNA testing allowed for enrollment.
Previous treatment with immune checkpoint inhibitors;