Table 2.

Rituximab maintenance versus retreatment: comparison of efficacy

	Maintenance	Retreatment	P
Overall response rate (%)	52%	35%	0.14
Complete response rate (%)	27%	4%	0.007
% in continuous remission	45%	24%	0.05
% remaining in continuous remission	23%	2%	0.03
Median progression-free survival (months)	31.7	7.4	0.007
Median duration of rituximab benefit (months)	31.7	27.4	0.94