Breast Cancer
Conditions
Keywords
stage II breast cancer, stage IIIA breast cancer
Brief summary
RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Combining chemotherapy with peripheral stem cell transplantation may allow the doctor to give higher doses of chemotherapy drugs and kill more tumor cells. It is not yet known if high-dose combination chemotherapy plus peripheral stem cell transplantation is more effective than standard combination chemotherapy for breast cancer. PURPOSE: Randomized phase III trial to compare high-dose combination chemotherapy plus peripheral stem cell transplantation with standard combination chemotherapy in treating women with stage II or stage III breast cancer.
Detailed description
OBJECTIVES: I. Compare the survival, disease-free survival, and systemic disease-free survival of women with high-risk, operable stage II/III breast cancer treated with three courses of dose-intensive epirubicin/cyclophosphamide (EC) supported by granulocyte colony-stimulating factor (G-CSF) and G-CSF-mobilized peripheral blood stem cells vs. standard EC followed by cyclophosphamide/methotrexate/fluorouracil. II. Compare the toxicity, duration of quality-adjusted time without symptoms and toxicity, and quality of life associated with these two treatments. III. Evaluate the cost effectiveness of these two treatments. OUTLINE: This is a randomized study. Patients are stratified by estrogen receptor status and menopausal status. Within 6 weeks of surgery, patients in the first group receive epirubicin (preferred) or doxorubicin plus cyclophosphamide every 3 weeks for 4 courses followed by conventional cyclophosphamide, methotrexate, and fluorouracil (CMF) every 4 weeks for 3 courses. Patients in the second group undergo stem cell mobilization and harvest with granulocyte colony-stimulating factor (G-CSF) followed within 10 weeks of surgery by high-dose chemotherapy with epirubicin and cyclophosphamide followed by peripheral blood stem cell rescue and G-CSF. All patients receive adjuvant tamoxifen, and patients who underwent lumpectomy prior to entry are required to receive adjuvant radiotherapy (radiotherapy is optional for patients who underwent mastectomy prior to entry). Patients are followed every 3 months for 2 years, then q 6 months for 3 years, then yearly. PROJECTED ACCRUAL: 210 patients will be accrued over 4 years to provide 195 evaluable patients.
Interventions
BIOLOGICALfilgrastim
Filgrastim 10 mg/kg/d sc for 6 days after randomization.
DRUGCMF regimen
Cyclophosphamide 100 mg/m2 orally days 1 - 14, methotrexate 40 mg/m2 iv days 1 and 8, 5-fluorouracil 600 mg/m2 iv days 1 and 8. Repeat every 28 days.
DRUGcyclophosphamide
For high-dose EC arm: cyclophosphamide 4 gm/m2 iv as 4 divided doses. For standard chemotherapy arm: cyclophosphamide 600 mg/m2 iv day 1 of 21-day EC cycles, and cyclophosphamide 100 mg/m2 orally on days 1-14 of 28-day CMF cycles.
DRUGdoxorubicin hydrochloride
Doxorubicin 60 mg/m2 iv on day 1 of 21-day cycles of AC.
DRUGepirubicin hydrochloride
Epirubicin 90 mg/m2 iv on day 1 of 21-day cycles of EC.
DRUGfluorouracil
5-fluorouracil 600 mg/m2 iv days 1 and 8 of 28-day cycles of CMF.
DRUGmesna
MESNA (7.2 gm/m2) on days 2 and 3 of 21-day cycles of dose-intensive EC.
DRUGmethotrexate
Methotrexate 40 mg/m2 iv on days 1 and 8 of 28-day cycles of CMF.
DRUGtamoxifen citrate
Tamoxifen 20mg daily for 5 years or until relapse.
PROCEDUREperipheral blood stem cell transplantation
Peripheral blood progenitor cells (PBPC) infusion on day 5 of each 21-day cycle of dose-intensive EC.
RADIATIONlow-LET electron therapy
Radiation therapy to the conserved breast is mandatory, to be carried out according to the prospectively defined guidelines of each participating institution; either after all chemotherapy or integrated into CMF as agreed per institution. Radiotherapy to the chest wall following mastectomy is optional according to the prospectively defined guidelines of each participating institution.
RADIATIONlow-LET photon therapy
radiation therapy to the conserved breast is mandatory, to be carried out according to the prospectively defined guidelines of each participating institution; either after all chemotherapy or integrated into CMF as agreed per institution. Radiotherapy to the chest wall following mastectomy is optional according to the prospectively defined guidelines of each participating institution.
Sponsors
ETOP IBCSG Partners Foundation
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
FEMALE
Age
16 Years to 65 Years
Healthy volunteers
No
Inclusion criteria
DISEASE CHARACTERISTICS: Histologically proven breast carcinoma in one of the following categories: 10 or more involved axillary nodes 5 or more involved axillary nodes and either: Primary tumor estrogen receptor (ER)-negative (less than 10 femtomoles per milligram of cytosol protein) T3 tumor (regardless of ER status) Total mastectomy or breast-conserving procedure (lumpectomy or quadrantectomy) required within 6 weeks prior to randomization Tumor confined to breast and axillary nodes (T1a-c, T2, or T3, N1-2, M0 by the UICC staging system) The following conditions exclude entry: Satellite skin nodules distant from the primary tumor Supraclavicular node involvement Inoperable, matted axillary nodes Fixation of primary tumor to chest wall (excluding pectoralis major) Bilateral breast cancer (any mass in opposite breast unless biopsy-proven benign) Hot spots on bone scintigram (unless confirmed to be benign) Skeletal pain of unknown cause Hormone receptor status: ER status determination preferred, but not required PATIENT CHARACTERISTICS: Age: 16-65 Sex: Women only Menopausal status: Any status Performance status: ECOG 0-2 Hematopoietic: WBC at least 4,000 Platelets at least 100,000 Hepatic: Bilirubin no greater than 1.1 mg/dL (20 micromoles/L) AST no greater than twice normal Renal: Creatinine no greater than 1.3 mg/dL (120 micromoles/L) Cardiovascular: Left ventricular ejection fraction greater than 50% by MUGA Other: No second malignancy except: Basal cell carcinoma Adequately treated carcinoma in situ of the cervix No significant nonmalignant disease that would preclude participation No psychiatric or addictive disorder that would compromise informed consent or participation No pregnant or nursing women Adequate contraception strongly advised for fertile women PRIOR CONCURRENT THERAPY: No prior therapy for breast cancer other than surgery (see Disease Characteristics)
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Disease-free survival. | 16 years after randomization. | Time from randomization to recurrence (including recurrence isolated to the breast), metastasis, appearance of a second primary tumor, or death from any cause, whichever occurs first. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Overall survival. | 16 years after randomization. | Time from randomization to death from any cause. |
| Toxicity. | 5 years after randomization. | Morbidity information was recorded using standard toxicity criteria. |
| Quality of life. | 16 years after randomization. | Quality of life was assessed using standard International Breast Cancer Study Group instruments. |
Countries
Australia, Switzerland
Outcome results
None listed