Safety evaluations will be conducted throughout the study and will consist of assessment of laboratory tests, vital signs, physical examinations. The occurrence and severity of adverse events, including thrombovascular events will be evaluated throughout the study.Periodic data monitoring of the study by an external Independent Data Monitoring Committee (IDMC) will be performed. The main responsibility of the IDMC is to conduct ongoing monitoring of safety and to report any irregularities back to the Sponsor along with recommendations regarding continuation of the study. Each patient will be assigned to one of three dosing schedules. All schedules will be administered by way of subcutaneous (under the skin) injection once every three weeks over a period of 13 weeks. The three dosing schedules are as follows: PROCRIT (epoetin alfa) 80,000 Units, PROCRIT (epoetin alfa) 120,000 Units or ARANESP (darbepoetin alfa) 500 mcg