S0601 Rituximab, Combination Chemotherapy, and Bortezomib Followed by Bortezomib Alone in Treating Patients With Newly Diagnosed Mantle Cell Lymphoma

• 2-year Progression-free Survival in Patients Treated With Rituximab-CHOP-bortezomib Induction Therapy (RCHOP-V) Followed by Bortezomib Maintenance Therapy (VM) [ Time Frame: 0-2 years ] [ Designated as safety issue: No ]
  Measured from date of registration to date of first observation of relapsed or progressive disease, or death due to any cause.
  
  

• Response Rate in Patients Treated With Rituximab-CHOPbortezomib Induction Therapy (R-CHOP-V) Followed by Bortezomib Maintenance Therapy(VM). [ Time Frame: At the time of restaging (between Cycles 6 and 7), every 6 months during Cycles 7-14, and at the end of protocol treatment ] [ Designated as safety issue: No ]
  Complete Response(CR) is a complete disappearance of all disease with the exception of nodes. No new lesions. previously enlarged organs must have regressed and not be palpable. Bone marrow(BM) must be negative if positive at baseline. Normalization of markers. CR Unconfirmed (CRU) does not qualify for CR above, due to a residual nodal mass or an indeterminate BM. Partial Response(PR) is a 50% decrease in the sum of products of greatest diameters (SPD) for up to 6 identified dominant lesions, including spleenic and hepatic nodules from baseline. No new lesions and no increase in the size of liver, spleen or other nodes.
  
  
• 2-year Overall Survival in Patients Treated With Rituximab-CHOP-bortezomib Induction Therapy (RCHOP-V) Followed by Bortezomib Maintenance Therapy (VM) [ Time Frame: 0-2 years ] [ Designated as safety issue: No ]
  Measured from date of registration to date of death due to any cause or last contact
  
  
• Number of Patients With Grade 3 Through Grade 5 Adverse Events That Are Related to Study Drug [ Time Frame: Assessed prior to each cycle (for Cycles 2-6), at restaging (between Cycle 6 and 7), every 3 months ( for Cycle 7-14), and at the end of protocol treatment. ] [ Designated as safety issue: Yes ]
  Adverse Events (AEs) are reported by the NCI Common Terminology Criteria for Adverse Events (CTCAE) version 3.0. For each patient, worst grade of each event type is reported. Grade 3 = Severe, Grade 4 = Life-threatening, Grade 5 = Fatal.
  
  

OBJECTIVES:

Primary

• Determine the 2-year progression-free survival rate in patients with newly diagnosed mantle cell lymphoma treated with induction therapy comprising rituximab, cyclophosphamide, doxorubicin hydrochloride, vincristine, prednisone, and bortezomib followed by bortezomib maintenance (VM) therapy.

Secondary

• Determine the response rate (complete, complete unconfirmed, and partial responses) in patients treated with this regimen.
• Determine the toxicity of VM in these patients.

OUTLINE: This is a multicenter study.

• Induction therapy: Patients receive R-CHOP-V induction therapy comprising rituximab IV over ≤ 6 hours, cyclophosphamide IV over 15-45 minutes, doxorubicin hydrochloride IV over 5-20 minutes, and vincristine IV over 5-15 minutes on day 1; oral prednisone once daily on days 1-5; and bortezomib IV over 30-90 minutes on days 1 and 4. Treatment repeats every 21 days for up to 6 courses in the absence of disease progression or unacceptable toxicity. After completion of 6 courses, patients with stable disease or better proceed to bortezomib maintenance therapy.
• Maintenance therapy: Beginning 3 months after completion of R-CHOP-V induction therapy, patients receive bortezomib IV on days 1, 4, 8, and 11. Treatment repeats every 3 months for up to 8 courses in the absence of disease progression or unacceptable toxicity.

After completion of study treatment, patients are followed periodically for 4 years and then annually for 3 years.

PROJECTED ACCRUAL: A total of 60 patients will be accrued for this study.