A Study of Obinutuzumab (RO5072759) Induction in Patients With Relapsed/ Refractory Waldenström Macroglobulinemia, OBI-1

Study treatment, obinutuzumab is a Type II humanized anti-CD20 monoclonal antibody of the IgG1 subclass derived by humanization of the parental B-Ly1 mouse antibody and produced in the Chinese Hamster Ovary cell line by recombinant DNA technology. The Study Treatment, obinutuzumab is a liquid concentrate for infusion. Obinutuzumab vials are type 1 glass vials with a butyl rubber stopper. Obinutuzumab is provided as a single 1000 mg dose liquid concentrate with a strength of 25 mg/mL. It is supplied in 50 mL glass vials containing 40 mL of the 25 mg/mL liquid concentrate.