RecruitingPhase 3Drug trialA Phase 3 Clinical Study of SHR-A1912 Combined With R-GemOx Versus R-GemOx in Diffuse Large B-cell LymphomaThis is a multicenter, randomized, open-label, phase 3 clinical study to evaluate the efficacy of SHR-A1912 combined with R-GemOx in relapsed refractory diffuse large B-cell lymphoma.