This is a single-center, single-arm, open-label, Simon's two-stage design, phase II clinical trial. The purpose of this study was to evaluate the efficacy and safety of SHR6390 combined with famitinib in the treatment of HR+/HER2 advanced or metastatic breast cancer patients who have progressed during or after 1-2 line endocrine therapy. Subjects will be treated until disease progression, toxicity is intolerable, informed consent is withdrawn, and investigators determine that medication must be discontinued. Drug efficacy and safety data will be collected.
The study is being conducted to assess the efficacy and safety of SHR6390 combined with famitinib in the treatment of advanced or metastatic breast cancer that progress in 1-2 line endocrine therapy.