This is a multi-center, open-label, single arm, non-comparative phase II trial, designed to evaluate the efficacy of plitidepsin in combination with bortezomib and dexamethasone in patients with MM double refractory to bortezomib and lenalidomide.The primary endpoint will be overall response rate (ORR), including stringent complete response (sCR), complete response (CR), very good partial response (VGPR) and partial response (PR).~Approximately 64 evaluable patients will be needed for the evaluation of the primary endpoint, ORR.~An early futility analysis will be performed with the efficacy data collected from the first 20 evaluable patients. The futility analysis will commence once patient number 20 has completed two full treatment cycles. Patient recruitment will not be halted during the conduct of this futility analysis.
This is a multi-center, open-label, single arm, non-comparative phase II trial, designed to evaluate the efficacy of plitidepsin in combination with bortezomib and dexamethasone in patients with Multiple Myeloma (MM) double refractory to bortezomib and lenalidomide.