White blood cell (WBC) >= /uL White blood cell (WBC) >= ,/ul White blood cell (WBC) >= ,/uL White blood cell (WBC) greater than or equal to ,/ul White blood cell (WBC) ? . K/uL White blood cell count (WBC) > /uL White blood cell (WBC) >= /uL White blood cell (WBC) > /ul within four weeks of enrollment White blood cell (WBC) count >= ,/uL White blood cell (WBC) counts > /uL. White blood cell count (WBC) >= /uL. Obtained within days prior to randomization/registration: white blood cell (WBC ) >= /uL White blood cell (WBC) count of > /ul White blood cell (WBC) counts > /uL. White blood cell (WBC) count < ,/uL before administration of pevonedistat on cycle day ; Note: hydroxyurea may be used to control the level of circulating leukemic blast cell counts to not lower than ,/uL during the study Obtained within days of the first study treatment: White blood cell (WBC) count > /uL White blood cell (WBC) >= /uL within days of registration Obtained within days prior to randomization/registration: White blood cell (WBC) >= /uL. Obtained within days of the first study treatment: White blood cell (WBC) count > /uL White blood cell (WBC) counts > /uL Obtained within days prior to the first study treatment (cycle , day ): white blood cell (WBC) counts > /uL White blood cell (WBC) count of >= /ul Leukocytes (white blood cell [WBC]) >= ,/uL White blood cell count (WBC) >= /uL White blood cell (WBC) >= /uL White blood cell (WBC) >= /uL, within days before study registration Within days prior to the first study treatment (cycle , day ): White blood cell (WBC) counts > /uL White blood cell (WBC) counts > /uL Performed within days (+ working days) prior to registration: White blood cell (WBC) > ,/ul. White blood cell count (WBC) >= ,/uL Total white blood cell (WBC) count >= /uL, within days of study registration (within days for pulmonary and cardiac assessments) White blood cell (WBC) counts > /uL within days prior to the first study treatment (cycle , day ) White blood cell count (WBC) >= /uL should be obtained within days prior to enrollment White blood cell (WBC) >= /uL White blood count (WBC) >= /uL obtained within days prior to randomization/registration White blood cell counts (WBC) > /uL Within days prior to study entry: White blood cell (WBC) >= /uL White blood cell count (WBC) >= /uL White blood cell (WBC) count > /uL Must be met within days of course day (CD): White blood cell (WBC) >= ,/ul White blood cell (WBC) >= ,/uL White blood cell (WBC) >= ,/uL obtained no more than days prior to the start of neoadjuvant endocrine therapy White blood cell (WBC) >= /uL White blood count (WBC) > ,/uL White blood cell (WBC) >= /uL White blood cell (WBC) >= ,/ul Within days prior to the first study treatment (cycle , day ): White blood cell (WBC) counts >= /uL. WBC (white blood cell count) is /ul White blood cell (WBC) >= . x ^/ul White blood cell (WBC) less than or equal to /uL White blood cell (WBC) counts > /uL, obtained within days prior to the first study treatment (cycle , day ) Performed within days prior to study: White blood count (WBC) > ,/ul White blood cell (WBC) >= . x ^/ul White blood cell (WBC) >= ,/uL White blood cell (WBC) counts > /uL White blood cell (WBC) > /ul No exclusion for blood counts; however, at the time of treatment initiation, white blood cell (WBC) should be < ,/uL (can be controlled with hydroxyurea) White blood cell count (WBC) >= /ul White blood cell (WBC) > ,/ul White blood cell (WBC) greater than or equal to ,/ul White blood cell (WBC) >= /UL White blood cell (WBC) >= /uL White blood cell (WBC) count >= /ul, obtained within days prior to initiation of study treatment White blood cell (WBC) >= /uL White blood cell (WBC) count >= /uL White blood cell (WBC) >= /ul White blood cell (WBC) count of >= /ul White blood cell (WBC) > ,/ul White blood cell (WBC) >= ,/ul Obtained within days prior to the first study treatment (cycle , day ); white blood cell (WBC) counts > /uL White blood cell (WBC) count of >= /ul White blood cell (WBC) >= ,/ul Whole blood cell (WBC) >= ,/ul White blood cell (WBC) >= /uL White blood cell (WBC) >= /uL White blood cell (WBC) counts > /uL (obtained within days prior to the first study treatment [course , day ]) White blood cell (WBC) > /ul White blood cell (WBC) > /uL White blood cell (WBC): >= /uL (~ x ^/L) White blood count (WBC) of > ul White blood cell (WBC) >= /uL White blood cell (WBC) >= , /uL White blood cell (WBC) >= . K/uL White blood cell (WBC) > . K/uL White blood cell count (WBC) >= ,/uL Total absolute phagocyte count (APC = %neutrophils + %monocytes) X white blood cell (WBC) is at least /uL White blood cell (WBC) >= /uL White blood cell (WBC) >= ,/uL White blood cell (WBC) > . k/uL White blood cell (WBC) >= ,/uL Leukocytes >= ,/uL; Note: if leukopenia is idiopathic and no other significant co-morbidities exist patients will not be excluded on the basis of their white blood cell (WBC) White blood cell count (WBC) >= ,/ul White blood cell (WBC) < /uL White blood cell (WBC) >= ,/uL, performed within days prior to registration