Effects of Daratumumab Monotherapy on Bone Parameters in Patients With Relapsed and /or Refractory Multiple Myeloma

Daratumumab will be given at a dose of 16 mg/kg administered as an IV infusion at weekly intervals (QW) for 8 weeks, then every 2 weeks (Q2W) for an additional 16 weeks, then every 4 weeks (Q4W) thereafter. Subjects will receive pre-infusion medications prior to Daratumumab infusion to mitigate potential IRRs and post- infusion medications after Daratumumab infusion for the prevention of delayed IRRs