RecruitingPhase 3Drug trialEvaluate the Safety and Efficacy of Tafasitamab and Lenalidomide in Combination With Gemcitabine and Oxaliplatin Versus Rituximab in Combination With Gemcitabine and Oxaliplatin in Patients With Relapsed/Refractory Diffuse Large B-Cell LymphomaThis is a Randomized, Multi-center, Phase 3 Study of Tafasitamab and Lenalidomide in Combination with Gemcitabine and Oxaliplatin versus Rituximab in Combination with Gemcitabine and Oxaliplatin in Patients with Relapsed/Refractory Diffuse Large B-Cell Lymphom