Pentostatin, Cyclophosphamide, and Rituximab With or Without Bevacizumab in Treating Patients With B-Cell Chronic Lymphocytic Leukemia or Small Lymphocytic Lymphoma
- Conditions
- LymphomaLeukemia
- Interventions
- Biological: bevacizumabBiological: pegfilgrastimBiological: rituximab
- Registration Number
- NCT00816595
- Lead Sponsor
- Mayo Clinic
- Brief Summary
RATIONALE: Drugs used in chemotherapy, such as pentostatin and cyclophosphamide, work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. Monoclonal antibodies, such as rituximab and bevacizumab, 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. It is not yet known whether giving pentostatin and cyclophosphamide together with rituximab is more effective with or without bevacizumab in treating patients with B-cell chronic lymphocytic leukemia or small lymphocytic lymphoma.
PURPOSE: This randomized phase II trial is studying the side effects of giving pentostatin and cyclophosphamide together with rituximab with or without bevacizumab and to see how well it works in treating patients with B-cell chronic lymphocytic leukemia or small lymphocytic lymphoma.
- Detailed Description
OBJECTIVES:
Primary
* To assess the rate of complete and overall response in patients with B-cell chronic lymphocytic leukemia or small lymphocytic lymphoma treated with pentostatin, cyclophosphamide, and rituximab with or without bevacizumab.
* To assess the proportion of patients who achieve a negative minimal residual disease state after treatment with these regimens.
* To monitor and assess the adverse events of these regimens.
Secondary
* To determine if molecular prognostic parameters (ZAP-70, CD38, cytogenetic abnormalities identified by FISH, and IgVH mutation status) relate to response in these patients.
* To determine the progression-free survival of patients treated with these regimens.
* To complete additional correlative studies to gain insight into disease biology and how it influences drug sensitivity.
OUTLINE: Patients are stratified according to Rai risk group (high \[Rai stage III or IV\] vs low \[Rai stage 0\] or intermediate \[Rai stage I or II\]) and FISH prognosis group (favorable \[normal, +12, 13q-, or other\] vs unfavorable \[17p- or 11q-\]). Patients are randomized to 1 of 2 treatment arms.
* Arm I: Patients receive bevacizumab IV over 30-90 minutes on day 1 of courses 1-5 and on days 1, 22, and 43 of course 6; rituximab IV over 2-4 hours on days 2 and 3 of course 1 and on day 1 of courses 2-6; and pentostatin IV over 30 minutes and cyclophosphamide IV over 30 minutes on day 2 of course 1 and on day 1 of courses 2-6. Patients also receive pegfilgrastim subcutaneously (SC) on day 3 of course 1 and on day 2 of courses 2-6. Treatment repeats every 21 days\* for 6 courses in the absence of disease progression or unacceptable toxicity.
NOTE: \*Course 6 is 56 days in duration
* Arm II: Patients receive rituximab IV over 2-4 hours on days 1 and 2 of course 1 and on day 1 of courses 2-6 and pentostatin IV over 30 minutes and cyclophosphamide IV over 30 minutes on day 1. Patients also receive pegfilgrastim SC on day 2. Treatment repeats every 21 days\* for 6 courses in the absence of disease progression or unacceptable toxicity.
NOTE: \*Course 6 is 56 days in duration
Patients undergo blood sample collection and bone marrow biopsy/aspiration periodically for translational research studies. Samples are analyzed by flow cytometry for assessment of minimal residual disease. Molecular prognostic markers (including CD38, ZAP-70, IgVH gene mutation status, and cytogenetic abnormalities by FISH), Tcl-1 and CD49d protein expression, and immunoglobulin heavy chain D and J family gene usage are also analyzed. Plasma samples are stored for future studies evaluating levels of VEGF, bFGF, and thrombospondin by ELISA.
After completion of study therapy, patients are followed periodically for up to 5 years.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 68
Not provided
Not provided
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description Arm A: Pentostatin, Cyclophosphamide, Rituximab, and Avastin bevacizumab Patients receive 15 mg/kg bevacizumab IV over 30-90 minutes on day 1 of courses 1-5 and on days 1, 22, and 43 of course 6; 375 mg/m\^2 rituximab IV over 2-4 hours on days 2 and 3 of course 1 and on day 1 of courses 2-6; and 2 mg/m\^3 pentostatin IV over 30 minutes and 600 mg/m\^2 cyclophosphamide IV over 30 minutes on day 2 of course 1 and on day 1 of courses 2-6. Patients also receive 6 mg pegfilgrastim subcutaneously (SC) on day 3 of course 1 and on day 2 of courses 2-6. Treatment repeats every 21 days for 6 courses in the absence of disease progression or unacceptable toxicity. Arm A: Pentostatin, Cyclophosphamide, Rituximab, and Avastin pegfilgrastim Patients receive 15 mg/kg bevacizumab IV over 30-90 minutes on day 1 of courses 1-5 and on days 1, 22, and 43 of course 6; 375 mg/m\^2 rituximab IV over 2-4 hours on days 2 and 3 of course 1 and on day 1 of courses 2-6; and 2 mg/m\^3 pentostatin IV over 30 minutes and 600 mg/m\^2 cyclophosphamide IV over 30 minutes on day 2 of course 1 and on day 1 of courses 2-6. Patients also receive 6 mg pegfilgrastim subcutaneously (SC) on day 3 of course 1 and on day 2 of courses 2-6. Treatment repeats every 21 days for 6 courses in the absence of disease progression or unacceptable toxicity. Arm A: Pentostatin, Cyclophosphamide, Rituximab, and Avastin rituximab Patients receive 15 mg/kg bevacizumab IV over 30-90 minutes on day 1 of courses 1-5 and on days 1, 22, and 43 of course 6; 375 mg/m\^2 rituximab IV over 2-4 hours on days 2 and 3 of course 1 and on day 1 of courses 2-6; and 2 mg/m\^3 pentostatin IV over 30 minutes and 600 mg/m\^2 cyclophosphamide IV over 30 minutes on day 2 of course 1 and on day 1 of courses 2-6. Patients also receive 6 mg pegfilgrastim subcutaneously (SC) on day 3 of course 1 and on day 2 of courses 2-6. Treatment repeats every 21 days for 6 courses in the absence of disease progression or unacceptable toxicity. Arm B: Pentostatin, Cyclophosphamide, and Rituximab pegfilgrastim Patients receive 100 mg rituximab IV over 2-4 hours on day 1 and 375 mg/m\^2 on day 2 of course 1 and 375 mg/m\^2 on day 1 of courses 2-6. They receive 2 mg/m\^2 pentostatin IV over 30 minutes and 600 mg/m\^2 cyclophosphamide IV over 30 minutes on day 1. Patients also receive 6 mg pegfilgrastim SC on day 2. Treatment repeats every 21 days for 6 courses in the absence of disease progression or unacceptable toxicity. Arm B: Pentostatin, Cyclophosphamide, and Rituximab rituximab Patients receive 100 mg rituximab IV over 2-4 hours on day 1 and 375 mg/m\^2 on day 2 of course 1 and 375 mg/m\^2 on day 1 of courses 2-6. They receive 2 mg/m\^2 pentostatin IV over 30 minutes and 600 mg/m\^2 cyclophosphamide IV over 30 minutes on day 1. Patients also receive 6 mg pegfilgrastim SC on day 2. Treatment repeats every 21 days for 6 courses in the absence of disease progression or unacceptable toxicity. Arm A: Pentostatin, Cyclophosphamide, Rituximab, and Avastin pentostatin Patients receive 15 mg/kg bevacizumab IV over 30-90 minutes on day 1 of courses 1-5 and on days 1, 22, and 43 of course 6; 375 mg/m\^2 rituximab IV over 2-4 hours on days 2 and 3 of course 1 and on day 1 of courses 2-6; and 2 mg/m\^3 pentostatin IV over 30 minutes and 600 mg/m\^2 cyclophosphamide IV over 30 minutes on day 2 of course 1 and on day 1 of courses 2-6. Patients also receive 6 mg pegfilgrastim subcutaneously (SC) on day 3 of course 1 and on day 2 of courses 2-6. Treatment repeats every 21 days for 6 courses in the absence of disease progression or unacceptable toxicity. Arm A: Pentostatin, Cyclophosphamide, Rituximab, and Avastin cyclophosphamide Patients receive 15 mg/kg bevacizumab IV over 30-90 minutes on day 1 of courses 1-5 and on days 1, 22, and 43 of course 6; 375 mg/m\^2 rituximab IV over 2-4 hours on days 2 and 3 of course 1 and on day 1 of courses 2-6; and 2 mg/m\^3 pentostatin IV over 30 minutes and 600 mg/m\^2 cyclophosphamide IV over 30 minutes on day 2 of course 1 and on day 1 of courses 2-6. Patients also receive 6 mg pegfilgrastim subcutaneously (SC) on day 3 of course 1 and on day 2 of courses 2-6. Treatment repeats every 21 days for 6 courses in the absence of disease progression or unacceptable toxicity. Arm B: Pentostatin, Cyclophosphamide, and Rituximab cyclophosphamide Patients receive 100 mg rituximab IV over 2-4 hours on day 1 and 375 mg/m\^2 on day 2 of course 1 and 375 mg/m\^2 on day 1 of courses 2-6. They receive 2 mg/m\^2 pentostatin IV over 30 minutes and 600 mg/m\^2 cyclophosphamide IV over 30 minutes on day 1. Patients also receive 6 mg pegfilgrastim SC on day 2. Treatment repeats every 21 days for 6 courses in the absence of disease progression or unacceptable toxicity. Arm B: Pentostatin, Cyclophosphamide, and Rituximab pentostatin Patients receive 100 mg rituximab IV over 2-4 hours on day 1 and 375 mg/m\^2 on day 2 of course 1 and 375 mg/m\^2 on day 1 of courses 2-6. They receive 2 mg/m\^2 pentostatin IV over 30 minutes and 600 mg/m\^2 cyclophosphamide IV over 30 minutes on day 1. Patients also receive 6 mg pegfilgrastim SC on day 2. Treatment repeats every 21 days for 6 courses in the absence of disease progression or unacceptable toxicity.
- Primary Outcome Measures
Name Time Method Complete and Overall Response Rate Evaluated after 6 cycles (up to 196 days) A Complete Response (CR) requires all of the following for 2 months:
* Absence of lymphadenopathy by physical examination (PE)
* No hepato- or splenomegaly by PE
* Neutrophils \>1500/ul, Platelets \>100,000/ul. Hemoglobin \>11.0 gm/dl, Peripheral blood lymphocytes \<4000/uL
Nodular Partial Response (nPR) is defined as a patient qualified for a CR, but regenerative nodules are histologically present on bone marrow samples.
A Clinical Complete Response (CCR) is defined as a patient qualified for a CR, but bone marrow samples are not available.
A Partial Response (PR) requires 50% reduction in 2 of the following: peripheral blood lymphocytes, or the sum of the products of the maximal perpendicular diameters, or the size of liver and/or spleen; and a 50% increase in neutrophils, platelets, or hemoglobin.
Overall response rate is calculated as the number of patients receiving CR, CCR, nPR, or PR as their objective status divided by the total number of evaluable patients.
- Secondary Outcome Measures
Name Time Method Overall Survival Assessed up to 5 years from registration The Kaplan-Meier method will be used to estimate overall survival distributions Overall survival is measured as the time from registration to the time of death due to any cause.
Progression-free Survival Assessed up to 5 years from registration The Kaplan-Meier method will be used to estimate progression-free survival distribution. Progression-free survival is defined as the time from registration to the time of progression or death, whichever occurs first.
Trial Locations
- Locations (2)
Mayo Clinic
🇺🇸Rochester, Minnesota, United States
Mayo Clinic in Arizona
🇺🇸Scottsdale, Arizona, United States