Ascending Dose and Exploratory Expansion Study of DS-3032b, an Oral MDM2 Inhibitor, in Subjects With Relapsed and/or Refractory Multiple Myeloma

Escalation DS-3032b starting dose level 90 mg/day administered once daily by mouth on Days 1 - 21 of a 28 day cycle. For Dose Expansion maximum tolerated dose from Dose Escalation Phase.