Chidamide Combined With Zimberelimab in the Treatment of Metastatic Triple-negative Breast Cancer Patients

The Efficacy and Safety of Chidamide Combined With Zimberelimab in the Treatment of Metastatic Triple-negative Breast Cancer Patients: A Single-armed, Phase II Trial

The objective of this study is to evaluate the efficacy and safety of a new treatment regimen (Chidamide combined with Zimberelimab) in the treatment of patients with metastatic triple negative breast cancer after the second-line therapy.

This is a phase II, single center, prospective, single arm clinical trial. The objective of the study is to evaluate the efficacy and safety of a new treatment regimen (Chidamide combined with Zimberelimab) in the treatment of patients with metastatic triple negative breast cancer after the second-line therapy. This study plans to recruit 47 subjects.

Inclusion Criteria:

• Histological confirmation of triple-negative breast cancer on primary tumour at diagnosis/on biopsy of metastasis.
• At least 1 measurable lesion as defined by Response Evaluation Criteria in Solid Tumors (RECIST) criteria.
• Fail first-line or above anti-tumor treatment.
• Adequate organ function including bone marrow, renal function, hepatic function, and cardiac reserve.
• Compliance with the study protocol.
• Have provided written and signed informed consent.
• Minimum life expectancy 16 weeks.

Exclusion Criteria:

• Pregnant or breast feeding.
• Uncontrolled medical problems.
• Evidence of active acute or chronic infection.
• Hepatic, renal, cardiac, or bone marrow dysfunction.
• Concurrent malignancy or history of other malignancy within the last five years.
• Known severe hypersensitivity to Chidamide or Zimberelimab
• Patients were unable or unwilling to comply with program requirements.