A Study of SI-B003 or BL-B01D1+SI-B003 in Patients With Unresectable Locally Advanced or Recurrent Metastatic HER2 Negative Breast Cancer
This phase II study is a clinical study to explore the efficacy and safety of SI-B003 monotherapy and BL-B01D1+SI-B003 combination therapy in patients with unresectable locally advanced or recurrent metastatic HER-2 negative breast cancer.