Phase I/II Trial of VELCADE + CHOP-Rituximab in Untreated DLCBL or Mantle Cell NHL

"Standard CHOP chemotherapy administered every 21 days (full dose) for six cycles Rituximab administered (375 mg/m2) day 1 of each cycle (with usual premedications)~VELCADE (Bortezomib) is administered prior to rituximab and CHOP on day 1 of each cycle. The dose of VELCADE will be determined by the following dose escalation schedule:~Level Dose/Schedule (-2) 0.7 mg/m2 on day 1 of each cycle (-1) 0.7 mg/m2 on days 1 and 8 (0) 0.7 mg/m2 on days 1 and 4 (+1) 1.0 mg/m2 on days 1 and 4 (+2) 1.3 mg/m2 on days 1 and 4"