- Persistent, relapsed or refractory indolent non-Hodgkin's lymphoma (Follicular grade I, II, or III), non-Hodgkin's lymphoma, composite lymphomas with ≥ 50% of tumor showing follicular histology, transformed follicular, lymphoplasmacytic, marginal zone lymphoma, small Lymphocytic Lymphoma (including T-cell subtypes), or mantle cell lymphoma that is relapsed, refractory, or in PR1 or CR1 (MCL only for CR1).