Platelets >= 100,000/uL (untransfused) Platelets >= 100,000/mm^3, equivalent to CTCAE v 3.0 grade 0-1 Platelets >= 100,000 cells/mm^3 Platelets >= 100,000 cells/mm^3 Platelets >= 100,000/mm^3 Within 60 days prior to registration on study: Platelets >= 100,000/mm^3 Platelets >= 100,000/mm^3 Platelets >= 100,000 cells/uL (75 x 10^9 L); and, Platelets >= 70,000 cells/mm^3, within 21 days prior to study entry Platelets >= 100,000/mm^3 Platelets >= 60,000 cells/mm^3; obtained within 14 days prior to study entry Obtained =< 7 days prior to registration: Platelets (PLT) >= 100,000/mm^3 Platelets >= 100,000 cells/mm^3 Platelets >= 100,000 cells/mm^3 Platelets >= 100,000 cells/mm^3 Platelets >= 100 x 10^9/L Platelets >= 100,000/ul Platelets >= 100 x 10^9/L Platelets >= 100,000/uL Platelets >= 100,000/ul Platelets >= 100,000/mm^3 Platelets >= 100,000/ul (unsupported) Platelets >= 100 x 10^9/L Platelets >= 100 x 10^9/L, within 2 weeks of the first dose of study treatment Platelets >= 100,000 cells/mm^3 obtained within 30 days prior to registration Platelets >= 90 x 10^3/uL Platelets >= 100 x 10^9/L Platelets >= 100,000 cells/mm^3 within 14 days prior to study registration Platelets >= 100,000 cells/mm^3, within 21 days prior to registration Platelets >= 50,000 /mm^3 Platelets >= 100,000 cells/mm^3 Platelets >= 100,000/mm^3 Platelets >= 100,000 cells/mm^3 Platelets >= 100 x 10^9/L Platelets >= 100,000/uL Platelets >= 100,000/ul Platelets >= 30,000/mm^3 Platelets >= 100,000/ul Platelets >= 50,000 cells/mm^3 Platelets > 100,000 mm^3, must be obtained within 8 weeks prior to screening for protocol therapy ELIGIBILITY CRITERIA FOR RANDOMIZATION (STEP 1): Platelets > 100,000 mm^3 Platelets: >= 100,000/mm^3 Platelets >= 100 x 10^9/L Platelets >= 100,000/mm^3 Platelets >= 100,000/ul Platelets >= 100,000/uL Platelets >= 100,000/uL Platelets (Plt) > 100 Platelets >= 100,000/mm^3 Platelets > 100,000/uL Platelets >= 100,000/uL Platelets >= 100,000/microliters Platelets >= 100 x 10^9/L Platelets > 100,000/uL Platelets >= 100 x 10^9/L Platelets >= 100,000/mm^3 within 4 weeks prior to randomization Platelets >= 100 x 10^3/uL Platelets >= 100,000/mm^3 Platelets >= 100,000/mm^3 Platelets: >= 100,000 / mm^3 Platelets >= 100 x 10^9/L within 14 days prior to registration. Platelets >= 100 x 10^9/L (transfusion dependent) Platelets >= 100,000 cell/mm^3 Platelets >= 100,000/uL Platelets >= 100,000 x 10^9 /L Platelets >= 100,000/uL Platelets >= 50,000 cells/mm^3 Platelets >= 100,000/ul Platelets >= 100,000 cells/mm^3