Efficacy Study of Adjuvant Chemotherapy for Chinese Primary Breast Cancer Patients

Inclusion Criteria:

1. Women aged from 40 to 65 years old;
2. Histologically proven invasive unilateral breast cancer (regardless of the type);
3. Initial clinical condition compatible with complete initial resection;
4. No residual macro or microscopic tumor after surgical excision;
5. Beginning of chemotherapeutic treatment no later than day 42 after the initial surgery;
6. Node positive disease (positive sentinel node or positive axillary clearance) (N+) or node negative disease (N-) with the following criteria : SBR II / III and pT > 20 mm;
7. Patient presenting one of the following criteria (reviewed before randomization by referent pathologist):Luminal A, Luminal B，Her-2 overexpressed Hormone receptor negativity is defined as ER<10%, PR<10% (IHC), HER2 negativity is defined as IHC 0-1+, or [IHC 2+ and FISH or CISH negative].
8. No clinically or radiologically detectable metastases (M0);
9. No peripheral neuropathy > 1;
10. WHO Performance status (ECOG) of 0 or 1;
11. Adequate recovery from recent surgery (at least one week must have elapsed from the time of a minor surgery (excluding breast biopsy); at least three weeks for major surgery);
12. Adequate hematological function (neutrophil count ³ 2x109/l, platelet count ³ 100x 109/l, Hemoglobin > 9 g/dl);
13. Adequate hepatic function: ASAT and ALAT £ 1.5 ULN alkaline phosphatases £ 2.5 ULN,total bilirubin £ 1,5 ULN;
14. Adequate renal function: serum creatinine £ 1.5 ULN;
15. Patients accepting contraception intake during the overall length of treatment if of childbearing potential;
16. Adequate cardiac function, LEVF value > 50% by Muga scan or echocardiography;
17. Signed written informed consent.

Exclusion Criteria:

1. Bilateral breast cancer or patient with controlateral DCIS;
2. Any metastatic impairment, including homolateral sub-clavicular node involvement,regardless of its type;
3. Any tumor ³ T4a (UICC1987) (cutaneous invasion, deep adherence, inflammatory breast cancer);
4. Triple negative （ER-PR-Her-2-）
5. Any clinically or radiologically suspect and non-explored damage to the controlateral breast;
6. Any chemotherapy, hormonal therapy or radiotherapy before surgery;
7. Previous cancer (excepted cutaneous baso-cellular epithelioma or uterine peripheral epithelioma) in the preceding 5 years, including invasive controlateral breast cancer;
8. Patients already included in another therapeutic trial involving an experimental drug;
9. Patients with other concurrent severe and/or uncontrolled medical disease or infection which could compromise participation in the study;
10. LEVF < 50% (MUGA scan or echocardiography);
11. Clinically significant cardiovascular disease (e.g. unstable angina, congestive heart failure, uncontrolled hypertension (> 150/90), myocardial infarction or cerebral vascular accidents) within 6 months prior to randomization;
12. Known prior severe hypersensitivity reactions to agents containing Cremophor EL;
13. Women of childbearing potential who are unwilling or unable to use an acceptable method to avoid pregnancy for the entire study period and up to 8 weeks after treatment completion;
14. Women who are pregnant or breastfeeding. Adequate birth control measures should be taken during study treatment phase;
15. Women with a positive pregnancy test en enrollment or prior to study drug administration;
16. Patients with any psychological, familial, sociological or geographical condition potentially hampering compliance with the study protocol and follow-up schedule; those conditions should be discussed with the patient before registration in the trial;
17. Individual deprived of liberty or placed under the authority of a tutor.