PK plots of obinutuzumab. (A) Obinutuzumab concentration vs time plot by dose (1000 mg or 2000 mg). (B) Obinutuzumab concentration time plot following administration of obinutuzumab 1000 mg by IWCLL response. (C) Obinutuzumab concentration time plot following administration of obinutuzumab 2000 mg by IWCLL response.