Table 1.

Outline of planned treatment interventions by visit

	Rituximab group	Cyclophosphamide group
Day 0	IV active rituximab 1000 mg	IV 600 mg mg/m2 body surface area
Day 14	IV active rituximab 1000 mg	Placebo
Week 4	Placebo	IV 600 mg mg/m2 body surface area
Week 8	Placebo	IV 600 mg mg/m2 body surface area
Week 12	Placebo	IV 600 mg mg/m2 body surface area
Week 16	Placebo	IV 600 mg mg/m2 body surface area
Week 20	Placebo	IV 600 mg mg/m2 body surface area

IV intravenously administered