showed a trendP = 0.062
13 The time to progression (TTP) and the duration of response were not significantly different, although patients with FL treated with 90 Y-IT showed a trend towards longer TTP (12.6 months vs 10.2 months, P = 0.062) and achieved more often responses lasting longer than 6 months (74% vs 52%, P = 0.019) compared to patients in the rituximab control group.