This is a single-arm, open-label, multicenter, exploratory study. The study plans to enroll patients diagnosed with multiple myeloma with CNS involvement to receive Selinexor (60 mg QW), pomalidomide (4 mg/day, on Days 1-21), and dexamethasone (40 mg/day, on Days 1, 8, 15, 22), with all agents dosed 28 days per cycle.~If patients reach maximum efficacy and have received SPD treatment for 8-12 cycles, maintenance treatment of Selinexor (20-60mg QW, optimal dose determined by the investigator) will be started and continued until disease progression or intolerable adverse events.
This is a single-arm, open-label, multicenter, exploratory study initiated by investigator to evaluate the efficacy and safety of Selinexor (S) combined with pomalidomide (P) and dexamethasone (D) in the treatment of multiple myeloma with CNS involvement.