- Histologically confirmed B-cell NHL with any of the following subtypes: diffuse large B-cell lymphoma (DLBCL), mantle cell lymphoma (MCL), follicular lymphoma (FL), marginal zone lymphoma (MZL) and lymphoplasmacytic lymphoma/Waldenstrom's macroglobulinemia (LL/WM), Burkitt's lymphoma (BL); patients with histological transformation to DLBCL from indolent lymphoma, primary mediastinal lymphoma and grey zone lymphoma are eligible (Part 1)