Overview Umbralisib and Rituximab as Initial Therapy for Patients With Follicular Lymphoma and Marginal Zone Lymphoma Status: Recruiting Trial end date: 2024-11-30 Target enrollment: Participant gender: Summary This research is being done to assess Umbralisib and Rituximab as a first line therapy for Follicular Lymphoma or Marginal Zone Lymphoma. Phase: Phase 2 Details Lead Sponsor: Massachusetts General HospitalCollaborator: TG TherapeuticsTreatments: Rituximab