RecruitingPhase 2Drug trialOrelabrutinib Combined With Rituximab ± Lenalidomide in Response-Adapted Stratified Therapy for Untreated MZLThis is a prospective, single-arm, phase II study aimed at evaluating the safety and efficacy of orelabrutinib combined with rituximab ± lenalidomide in response-adapted stratified therapy for untreated marginal zone lymphoma. The primary endpoint is the complete response rate (CRR).