RATIONALE: Giving high-dose chemotherapy before an autologous stem cell transplant helps stop the growth of cancer cells by stopping them from dividing or by killing them. An autologous stem cell transplant may be able to replace the blood-forming cells that were destroyed by chemotherapy. GM-CSF may increase the number of immune cells found in bone marrow or peripheral blood. Giving a monoclonal antibody, such as rituximab, after the transplant may find any remaining cancer cells and either kill them or deliver cancer-killing substances to them without harming normal cells. Giving GM-CSF together with rituximab after autologous stem cell transplant may be an effective treatment for follicular non-Hodgkin lymphoma. PURPOSE: This phase II trial is studying how well giving GM-CSF together with rituximab after autologous stem cell transplant works in treating patients with relapsed or primary refractory follicular non-Hodgkin lymphoma.
OBJECTIVES: Primary * To assess the progression-free survival rate at 2 years after autologous stem cell transplantation (ASCT) in patients with relapsed or primary refractory follicular lymphoma treated with sargramostim (GM-CSF) and rituximab after ASCT. Secondary * To assess the safety of administering GM-CSF and rituximab after ASCT. * To assess the effects of GM-CSF on the relative expression of activating and inhibitory FcγR on circulating monocytes. * To assess the effects of GM-CSF on the relative expression of activating and inhibitory FcγR on circulating dendritic cells. * To assess the effects of GM-CSF on the level of circulating FcγR. * To assess the reconstitution of NK cells, NK-T cells, dendritic cell subsets, and regulatory T-cells after ASCT. OUTLINE: * High-dose chemotherapy: Patients receive carmustine IV over 2 hours on day -7, etoposide IV over 1 hour and cytarabine IV every 12 hours on days -6 to -3, and melphalan IV on day -2. * Autologous stem cell transplantation (ASCT): Patients undergo ASCT on day 0. Patients receive filgrastim (G-CSF) subcutaneously (SC) once a day beginning on day 5 and continuing until blood counts recover. * Sargramostim (GM-CSF) and rituximab: Beginning approximately 7-10 weeks (49-70 days) after ASCT, patients receive GM-CSF SC 3 times a week for 8 weeks and rituximab IV once weekly for 4 weeks (beginning within 3 days after the first dose of GM-CSF). Patients receive a second course of GM-CSF and rituximab (as above) beginning approximately 22-26 weeks (154-182 days) after ASCT. After the completion of study treatment, patients are followed periodically for 2 years.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
14
Memorial Sloan-Kettering Cancer Center
New York, New York, United States
Progression-free Survival Rate
after autologous stem cell transplantation (ASCT). Disease progression is defined using International Workshop Criteria for non-Hodgkin lymphoma37 and is defined as: 1. ≥ 50% increase in products of diameters of any previously identified abnormal node or nodule AND/OR 2. appearance of any new lesions
Time frame: up to 3 years
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