On longer follow up (median follow up 38months), 3-year EFS and OS rates were 75.6% (95% CI 62.3-91.9%), and 75.6% (95% CI 62.3-91.9%) respectively. 3-year rates of EFS based on post-induction (week 4) MRD status was 55.6% (31-99.7%) in MRD positive group compared with 86.1% (72.7-100%) in MRD negative group. 3-year rates of OS based on EOI MRD status was 55.6% (31-99.7%) in MRD positive group compared with 86.1% (72.7-100%) in MRD negative group. On longer follow-up, the activity of the combination of bortezomib and rituximab is maintained without any new safety concerns.