A Randomized Trial of Chemotherapy in Surgical Patients With Infiltrating Ductal Carcinoma of Breast

Procedure: Routine chemotherapeutic regimens using one out of cyclophosphamide, doxorubicin, epirubicin, fluorouracil and methotrexate (CDEFM) as single agent was performed 30\~60 days before surgery：cyclophosphamide 100mg/M2, doxorubicin 60mg/M2, epirubicin 100mg/M2, fluorouracil 500mg/M2, or methotrexate 50mg/M2.The agent was given on a regular route of IV administration on the 1st and 8th day of each cycle, 28 days per cycle, totally 6 cycles. Subsequently, there was a 30-day interval between the last cycle and radical surgery.

Procedure: Routine chemotherapeutic regimens using two agents from cyclophosphamide, doxorubicin, epirubicin, fluorouracil and methotrexate (CDEFM) as combinatorial treatment was performed 30\~60 days before surgery：cyclophosphamide 100mg/M2, doxorubicin 60mg/M2, epirubicin 100mg/M2, fluorouracil 500mg/M2, or methotrexate 50mg/M2.The agents were given on a regular route of IV administration on the 1st and 8th day of each cycle, 28 days per cycle, totally 6 cycles. Subsequently, there was a 30-day interval between the last cycle and radical surgery.

Procedure: Routine placebo standardized in clinical oncology was provided to patients to replace any chemotherapeutic agent.