ZR-MTX for PIOL Phase II Trial

This is a prospective single-arm phase II study, with the purpose of evaluating the efficiency of ZR-MTX regimen (Rituximab, Zanubrutinib and methotrexate) combined with intravitreal methotrexate, then followed by minimal residual disease directed Zanubrutinib maintenance in newly-diagnosed primary intraocular lymphoma. The primary endpoint of this study is progression-free survival (PFS).

Inclusion Criteria: * • Newly-diagnosed primary vitreoretinal lymphoma * ECOG≤2 * creatinine clearance rate (CCR) ≥ 60ml/h, according to Cockcroft-Gault * Total bilirubin # 2 upper limits of normal, alanine aminotransferase#ALT# \< 3 upper limits of normal * Sign the Informed consent * Women of childbearing potential must understand that the study medication could have a potential teratogenic risk. They should undergo complete contraception during the study period. * Male subjects must agree to use condoms throughout study drug therapy. Exclusion Criteria: * • primary central nervous system lymphoma involved eyes and brain * systemic B cell lymphoma involved eyes * Pre-existing uncontrolled active infection * Clinical evidence of grade 3 or 4 heart failure as defined by the New York Heart Association criteria * Pregnancy or active lactation * Co-existing tumors * HIV or HBV or HCV infection