Absolute neutrophil count (ANC) >= 1,500/mcL Absolute neutrophil count (ANC) >= 1,500/mcl Absolute neutrophil count (ANC) >= 1,000 cells/mcL within 42 days prior to registration Absolute neutrophil count (ANC) >= 1,500/mcl Absolute neutrophil count (ANC) >= 1,500/mL within 28 days prior to registration Absolute neutrophil count (ANC) >= 1500/mcL (1.5 x 10^9/L) obtained within 2 weeks prior to registration RE-REGISTRATION ELIGIBILITY CRITERIA (STEP 2): Absolute neutrophil count (ANC) >= 1.0 x 10^9/L Absolute neutrophil count (ANC) greater than or equal to 1,500/mcl Absolute neutrophil count (ANC) >= 1,200/mcL (subjects may be treated with hematopoietic growth factors to achieve or maintain this level) Absolute neutrophil count (ANC) >= 1,500/mcl obtained within 28 days prior to sub-study registration Absolute neutrophil count (ANC) >= 1.5 x 10^9/L measured within 28 days prior to randomization Absolute neutrophil count (ANC) >= 1,500/mcL Absolute neutrophil count (ANC) >= 750/mcl within 28 days prior to registration Obtained within 28 days prior to registration: Absolute neutrophil count (ANC) >= 1,500/mcL Absolute neutrophil count (ANC) >= 1,500/mcL Absolute neutrophil count (ANC) >= 1,000/mcL; must be obtained within 28 days prior to registration Absolute neutrophil count (ANC) >= 1,500/mcL Absolute neutrophil count (ANC) of >= 1,500/mL within 21 days prior to registration Absolute neutrophil count (ANC) >= 1,500/mcL Within 14 days prior to registration: Absolute neutrophil count (ANC) >= 1,500/mcL CLINICAL/LABORATORY CRITERIA: Absolute neutrophil count (ANC) >= 1500/mcL; these results must be obtained within 28 days prior to registration Absolute neutrophil count (ANC) greater than or equal to 1,500/mcl, within 14 days prior to registration; this ANC cannot have been induced by granulocyte colony stimulating factors Absolute neutrophil count (ANC) >= 1,500/mcl Obtained within 28 days prior to registration: Absolute neutrophil count (ANC) >= 1,500/mcl Absolute neutrophil count (ANC) >= 1.5 x 10^9/L within 14 days prior to registration. Within 28 days prior to registration: ANC >= 1,000/mcL Within 14 days prior to registration: Absolute neutrophil count (ANC) >= 1,500/mcl Absolute neutrophil count (ANC) >= 1,500 microliter (mcL) Within less than or equal to 14 days prior to registration: Absolute neutrophil count (ANC) >= 1.5 x 10^9/L Absolute neutrophil count (ANC) >= 1,500 microliter (mcL), obtained within 28 days prior to step 2 registration Absolute neutrophil count (ANC) >= 1,500/mcL within 28 days prior to registration Absolute neutrophil count (ANC) >= 1,500/mcL within 28 days prior to registration Absolute neutrophil count (ANC) >= 1,500/mcL within 28 days prior to registration Absolute neutrophil count (ANC) >= 1 x 10^9/L within 30 days of day 1 of study