Optimize Study - Orelabrutinib Combined With BR/G in Untreated Marginal Zone Lymphoma (MZL)

they will receive three cycles of Orelabrutinib combined with bendamustine and rituximab (BR: bendamustine 70mg/m\^2 on days 1-2; rituximab 375mg/m\^2 on day 0). Patients achieving PR or better will enter the Orelabrutinib monotherapy maintenance phase (up to 21 cycles, each cycle 28 days).

they will receive six cycles of Orelabrutinib combined with obinutuzumab (G 1000mg iv on days 1, 8, 15 of cycle 1, and day 1 of cycles 2-6; Orelabrutinib 150mg once daily). Patients achieving PR or better will enter the Orelabrutinib monotherapy maintenance phase (up to 18 cycles, each cycle 28 days ).