STUDY TREATMENT: Lymphocyte count >= 300/uL within 14 days prior to the first study treatment. Obtained within 14 days of the first study treatment: Lymphocyte count > 500/uL Obtained within 14 days of the first study treatment: Lymphocyte count >500/uL Obtained within 14 days prior to the first study treatment (cycle 1, day 1): lymphocyte count >= 500/uL Obtained within 14 days prior to the first study treatment (cycle 1, day 1): platelet count >= 100,000/uL Within 14 days prior to cycle 1 day 1 of treatment: Absolute lymphocyte count >= 500/uL Within 14 days prior to cycle 1 day 1 of treatment: Platelet count >= 100,000/uL Within 14 days prior to the first study treatment (cycle 1, day 1): Lymphocyte count >= 300/uL Absolute lymphocyte count >= 500 cells/uL (obtained within 28 days prior to first study treatment) Lymphocyte count ? 300/uL within 14 days prior to the first study treatment (cycle 1, day 1) Platelet count ? 100,000/uL within 14 days prior to the first study treatment (cycle 1, day 1) Within 14 days prior to the first study treatment (cycle 1, day 1): Lymphocyte count >= 300/uL. Absolute neutrophil count >= 1500 cells/uL, obtained within 14 days prior to the first study treatment (cycle 1, day 1) Lymphocyte count >= 300/uL, obtained within 14 days prior to the first study treatment (cycle 1, day 1) Platelet count >= 100,000/uL, obtained within 14 days prior to the first study treatment (cycle 1, day 1) Lymphocyte count >= 0.5 x 10^9/L, obtained within 14 days prior to initiation of study treatment Within 14 days prior to the first study treatment (cycle 1, day 1): Lymphocyte count >= 500/uL Obtained within 14 days prior to the first study treatment (cycle 1, day 1); lymphocyte count ? 300/uL Obtained within 14 days prior to the first study treatment (cycle 1, day 1); platelet count ? 75,000/uL Lymphocyte count >= 300/uL (obtained within 14 days prior to the first study treatment [course 1, day 1]) Platelet count >= 75 x 10^3/uL obtained at baseline (day 1 of cycle 1, before study drug administration) Absolute neutrophil count >= 1.0 x 10^3/uL obtained at baseline (day 1 of cycle 1, before study drug administration) Lymphocyte count >= 500/uL (obtained within 28 days prior to the first study treatment)