You will receive ofatumumab by vein (over about 2 hours) on Days 1, 2, and 11 of Cycle 1. You will also receive it on Days 1 and 8 of Cycles 2 and 4, and on Days 1 and 11 of Cycle 3. If you will receive rituximab instead of ofatumumab, you will receive it by vein (over about 2 hours) on Days 1 and 11 of Cycles 1 and 3 and on Days 2 and 8 of Cycles 2 and 4.