RecruitingPhase 2Drug trialStudy of Epcoritamab in R/R Primary Diffuse Large B-cell Lymphoma of the CNS Treated With Lenalidomide and RituximabThe purpose of this phase 2 study is to evaluate the efficacy and safety of epcoritamab in subjects with relapsed or refractory primary diffuse large B-cell lymphoma of the Central Nervous System treated with rituximab and lenalidomide.