Filanesib (ARRY-520) in Combination With Pomalidomide and Dexamethasone for Relapsed/Refractory (R/R) Multiple Myeloma (MM) Patients

Patients will be treated with 28-day cycles of Filanesib administered iv as a 1-hour (± 10-minute) infusion at escalating doses on days 1, 2, 15 \& 16, + pomalidomide administered p.o. at escalating doses during 21 days with 7 days rest period + dexamethasone at a fixed dose of 40 mg po days 1, 8, 15 \& 22. G-CSF prophylaxis is mandatory in all patients after Filanesib, starting from Day 3 and Day 17 (for a total of 7 days each). Treatment will be continued until progression or unacceptable toxicity.