Iodine I 131 Tositumomab, Rituximab, and Combination Chemotherapy in Treating Older Patients With Stage II, Stage III, or Stage IV Non-Hodgkin's Lymphoma
Recruitment status was Active, not recruiting
RATIONALE: Radiolabeled monoclonal antibodies, such as iodine I 131 tositumomab, can find cancer cells and carry cancer-killing substances to them without harming normal cells. Monoclonal antibodies, such as rituximab, can block cancer growth in different ways. Some block the ability of cancer cells to grow and spread. Others find cancer cells and help kill them or carry cancer-killing substances to them. Drugs used in chemotherapy, such as cyclophosphamide, doxorubicin, vincristine, and prednisone, work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. Giving a radiolabeled monoclonal antibody together with rituximab and combination chemotherapy may kill more cancer cells.
PURPOSE: This phase II trial is studying how well giving iodine I 131 tositumomab together with rituximab and combination chemotherapy works in treating older patients with stage II, stage III, or stage IV B-cell non-Hodgkin's lymphoma.
Drug: doxorubicin hydrochloride
Drug: vincristine sulfate
Radiation: tositumomab and iodine I 131 tositumomab
|Study Design:||Masking: Open Label
Primary Purpose: Treatment
|Official Title:||Iodine-131-Labeled Monoclonal Anti-B1 Antibody (I-131 Tositumomab) in Combination With Cyclophosphamide, Doxorubicin, Vincristine, Prednisone and Rituximab Therapy for Patients ≥ Age 60 With Advanced Stage Diffuse Large B-Cell NHL: A Phase II Study|
- Progression-free survival at 2 years [ Designated as safety issue: No ]
- Response rate after study completion [ Designated as safety issue: No ]
- Progression-free survival of subgroup at 2 years [ Designated as safety issue: No ]
|Study Start Date:||November 2005|
|Estimated Primary Completion Date:||May 2010 (Final data collection date for primary outcome measure)|
- Determine the 2-year progression-free survival of older patients with previously untreated bulky stage II or stage III or IV diffuse large B-cell non-Hodgkin's lymphoma treated with iodine I 131 tositumomab in combination with rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone.
- Determine the response rate (partial response, complete unconfirmed response, and complete response) in patients treated with this regimen.
- Determine the 2-year progression-free survival and response rate (partial response, complete unconfirmed response, and complete response) in BCL-2 positive patients treated with this regimen.
OUTLINE: This is a multicenter study.
- Rituximab and chemotherapy: Patients receive R-CHOP comprising rituximab IV over 6 hours; cyclophosphamide IV over 15-45 minutes; doxorubicin IV over 5-20 minutes; and vincristine IV over 5-15 minutes on day 1 and oral prednisone on days 1-5. Treatment repeats every 21 days for up to 6 courses in the absence of disease progression or unacceptable toxicity. Patients then undergo a restaging evaluation. Patients without progressive disease receive CHOP chemotherapy comprising cyclophosphamide, doxorubicin, vincristine, and prednisone as outlined above. Treatment with CHOP chemotherapy repeats every 21 days for 2 courses.
- Radiolabeled monoclonal antibody therapy: Approximately 4-8 weeks after completion of chemotherapy, patients receive tositumomab IV over 1 hour followed by a dosimetric dose of iodine I 131 tositumomab IV over 20 minutes. Patients then undergo gamma scans over a 1-week period in order to determine the correct treatment dose of iodine I 131 tositumomab. No more than 2 weeks after administration of the dosimetric dose, patients receive tositumomab IV over 1 hour followed by a treatment dose of iodine I 131 tositumomab IV over 20 minutes.
After completion of study treatment, patients are followed periodically for up to 5 years.
PROJECTED ACCRUAL: A total of 80 patients will be accrued for this study within 15 months.
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|Study Chair:||Jonathan W. Friedberg, MD||James P. Wilmot Cancer Center|
|Investigator:||Richard I. Fisher, MD||James P. Wilmot Cancer Center|