Must be obtained within 14 days prior to registration for protocol therapy: Platelets >= 100,000/mcL Within 28 days prior to registration: ANC >= 1,000/mcL Within 28 days prior to registration: Platelets >= 75,000/mcL Platelets >= 100,000/mm^3 must be obtained =< 7 days prior to protocol registration Platelets >= 100,000/mcL within 28 days prior to registration Platelets >= 100,000/mcL, obtained within 28 days prior to step 2 registration Within 60 days prior to registration on study: Platelets >= 100,000/mm^3 Within 14 days prior to registration: Platelets >= 100,000/mcl Within less than or equal to 14 days prior to registration: Platelets >= 100 x 10^9/L Platelets >= 75,000/mcL within 28 days prior to registration Platelets >= 100 x 10^9/L within 14 days prior to registration. Obtained within 28 days prior to registration: Platelets >= 50,000/mcl Platelets > 100,000/mcl documented within 28 days prior to step 3 registration Platelets >= 50,000/mcl within 28 days prior to registration Registration Step 3 – Maintenance: Patients must have adequate marrow function as evidenced by platelets >= 75,000/mcl within 28 days prior to registration Measured within 28 days prior to registration: platelets >= 100,000/mcL Platelets >= 100,000/mcl obtained within 14 days prior to registration Platelets ? 100,000/mcL within 14 days of registration SAFETY RUN-IN: Within 10 days of registration: Platelets >= 100,000 / mcL Platelets >= 50,000/mcl (documented within 28 days of registration) Obtained within 21 days prior to study registration: platelets >= 100,000/mcL Within 14 days of treatment registration: Platelets >= 100,000/mcL Platelets >= 100 x 10^9/L, determined within 14 days of registration Within 28 days of study registration: Platelets >= 100 x 10^9/L Platelets >= 100,000 / mcL, performed within 28 days of study registration Platelets >= 100,000/mcL, =< 5 days prior to C1D1 Obtained within 28 days prior to registration: Platelets >= 100 x 10^9/L Within 28 days prior to registration: Platelets >= 100 x 10^9/L Within 5 days prior to the start of study treatment: Platelets >= 100,000/mcL. Obtained within 14 days prior to randomization/registration: platelets >= 100 x 10^3/uL Within 28 days prior to administration of study treatment: Platelets >= 100,000/mcL Within 7 days of registration: Platelets >= 100,000/mcL Within 10 days prior to on-study date: Platelets ? 100,000/mcL Obtained within 21 days of registration: platelets > 50,000/mcL Obtained within 21 days prior to randomization/registration: Platelets >= 100 x 10^3/uL. Within 14 days prior to registration: Platelets >= 75,000/mcl Platelets >= 100,000/mcL within 30 days of registration Platelets >= 100,000/mcL 14 days or fewer from registration Obtained within 14 days prior to enrollment: platelets >= 75,000/mcL Platelets >= 100 x 10^3/mcl within 14 days prior to first dose Platelets >= 75,000/mcL, performed within 14 days of protocol registration Within 28 days prior to registration for protocol therapy: Platelets >= 100,000 K/mm^3 Platelets > 100,000/mm^3, within 28 days prior to registration Platelets >= 100,000/mcL, performed within 14 days of registration Platelets >= 100,000/mcL, assessed within 14 days prior to registration Platelets >= 100,000/mcL within 14 days prior to registration Within 14 days prior to registration: Platelets >= 100,000/mcl Platelets >= 50,000/mcl, obtained within 14 days of first dose of drug Performed 28 days prior to study registration up to the first dose of study drug: platelets >= 100,000 /mcL Platelets >= 100 x10^3/uL obtained within 14 days prior to randomization/registration Within 14 days prior to registration: Platelets >= 100,000 x 10^9/L Performed within 28 days prior to study registration up to the first dose of study drug: Platelets >= 100,000 /mcL Platelets >= 100,000/mcL, determined within 14 days of registration Platelets >= 100 x 10^9/L, obtained within 30 days of study registration Within 14 days prior to registration: Platelets >= 100 x 10^9/L Platelets >= 75,000/mcL (75 x 10^9/L) obtained within 2 weeks prior to registration Platelets >= 100 × 10^9/L =< 14 days prior to registration Within 28 days prior to administration of therapy: Platelets >= 100,000/mcL Platelets >= 100,000/mcL assessed within seven (7) days prior to the start of therapy Obtained within 28 days prior to registration: Platelets >= 75,000/mcL Platelets >= 100,000/mcL; these results must be obtained within 28 days prior to registration Platelets >= 100,000 mcL be obtained within 42 days prior to registration REGISTRATION #2 - PRIOR TO CONSOLIDATION CHEMOTHERAPY: Platelets >= 100,000/mcl Within 14 days prior to registration: Platelets >= 100,000/mcL Platelets >= 100,000/mcL within 14 days prior to Step 3 registration Obtained within 30 days of registration: Platelets >= 75,000/mcL or >= 50,000/mcL with documented bone marrow involvement Within 14 days prior to registration: platelets >= 100,000/mcL Platelets >= 100,000/mcL, within 14 days of study registration Platelets >= 100 x 10^9/L obtained within 14 days prior to registration Platelets >=100,000/mcL, performed within 14 days prior to registration Within 14 days of registration: Platelets >= 100,000/mcL Platelets >= 100,000/mcl (must be within 7 days of MLA) REGISTRATION INCLUSION CRITERIA: Platelets >= 100,000/mcL Within 14 days prior to registration: Platelets >= 100,000/mm^3 Platelets >= 100,000/mcL within 28 days prior to registration Platelets >= 100,000/mcL within 28 days prior to registration Platelets >= 100,000/mcL (within 14 days of study registration) Platelets >= 100,000 / mcL, obtained =< 30 days prior to registration