This is an open label, randomized, two-arm Phase 3 study in subjects with relapsed or refractory FL and MZL to evaluate efficacy and safety of zandelisib in combination with rituximab in comparison to standard immunochemotherapy (Rituximab-Bendamustine or Rituximab-CHOP).~Subjects must have relapsed after at least one previous line of systemic immunochemotherapy. Previous treatments must have included an anti-CD20 monoclonal antibody (mAb) with chemotherapy such as Bendamustine (B), CHOP, CVP, FND, or similar regimens, or an anti-CD20 mAb with Lenalidomide (L).~Approximately 534 randomized subjects will be enrolled in this study.
This is a Phase 3 study of the PI3Kδ inhibitor Zandelisib (ME-401) in combination with rituximab, in comparison to standard immunochemotherapy (Rituximab-Bendamustine or Rituximab-CHOP) in subjects with relapsed or refractory FL and MZL.