Response to daratumumab-retreatment in patients with multiple myeloma.

Daratumumab is an effective therapy in multiple myeloma (MM). We assessed whether daratumumab retreatment may re-induce significant responses and which patients do benefit the most. We hypothesized, that there is effective synergism between daratumumab and alternating antimyeloma drug combinations during retreatment and that retreatment is safe and effective.