Efficacy and Safety of Orelabrutinib Combined With Rituximab Versus Lenalidomide Combined With Rituximab in Patients With Relapsed/Refractory Marginal Zone Lymphoma

Must have received: anti-CD20 monoclonal antibody-containing regimen

Prior systemic therapy including at least one anti-CD20 monoclonal antibody-containing regimen is required, with the following specifications: For combination therapies: Minimum of 2 completed treatment cycles For anti-CD20 monotherapy: Minimum of 4 administered doses Progression during treatment waives cycle/dose requirements

Cannot have received: BTK inhibitor

Prior treatment with any types of BTK inhibitor

Cannot have received: lenalidomide plus rituximab (R2 regimen) (lenalidomide, rituximab)

Exception: Patients refractory to lenalidomide plus rituximab (R2 regimen). Refractoriness is defined as either: Failure to achieve at least partial response (PR) after completing an adequate R2 treatment course (≥2 cycles at standard doses), OR Disease progression during R2 therapy or within 6 months after the last dose.

Patients refractory to lenalidomide plus rituximab (R2 regimen). Refractoriness is defined as either: Failure to achieve at least partial response (PR) after completing an adequate R2 treatment course (≥2 cycles at standard doses), OR Disease progression during R2 therapy or within 6 months after the last dose.