Study in Letrozole Combined With Metronomic Oral Cyclophosphamide in Elderly Metastasis Breast Cancer Patients
Breast Neoplasms, Neoplasm Metastasis
About this trial
This is an interventional treatment trial for Breast Neoplasms
Eligibility Criteria
Inclusion Criteria:
- Histologically confirmed metastatic breast cancers patients with estrogen receptor positive and/or progesterone receptor positive;
- Elderly women (age ≥ 65years)
- Failure or relapse from standard chemotherapy or unfit for chemotherapy
- Measurable disease per Response Evaluation Criteria in Solid Tumors(RECIST);
- Eastern Cooperative Oncology Group (ECOG) performance status of 0-2;
- Adequate bone marrow, liver and renal function;
- Estimated life expectancy of at least 3 months.
Exclusion Criteria:
- Serious or uncontrolled concurrent medical illness
- Uncontrolled primary and metastatic brain tumor
- History of second primary malignancies
- Having been enrolled in other clinical trials within a month
Sites / Locations
- Capital Medical Unvierstiy Cancer Center/ Beijing Shijitan HospitalRecruiting
Arms of the Study
Arm 1
Arm 2
Arm 3
Arm 4
Active Comparator
Experimental
Experimental
Active Comparator
Cyclophosphamide alone
Cyclophosphamide plus letrozole for resistant patients
Cyclophosphamide plus letrozole for treat-naive patients
letrozole alone
Patients who were resistant to letrozole will be randomized to receive cyclophosphamide alone or letrozole plus cyclophosphamide. Patients in this arm will receive cyclophosphamide 50 mg daily.
Patients who were resistant to letrozole will be randomized to receive cyclophosphamide alone or letrozole plus cyclophosphamide. Patients in the this will receive cyclophosphamide 50 mg daily plus letrozole 2.5 mg daily.
Patients who haven't received letrozole hormonotherapy will be randomized to receive letrozole plus cyclophosphamide or letrozole alone. Patients in this arm will receive cyclophosphamide 50 mg daily plus letrozole 2.5 mg daily.
Patients who haven't received letrozole hormonotherapy will be randomized to receive letrozole plus cyclophosphamide or letrozole alone. Patients in this arm will receive letrozole 2.5 mg daily.