CC5013-MM024 is a multicenter, open-label, Extended Access Program (EAP) of lenalidomide plus low dose dexamethasone regimen in Chinese subjects with relapsed or refractory MM who participated in Study CC-5013-MM-021. For subjects who remained progression free under Rd treatment of Study CC-5013-MM-02 1, this LAP offers the option to continue lenalidomide treatment for subjects who have shown therapeutic benefit.