This phase II trial is studying how well giving fludarabine and cyclophosphamide together with total-body irradiation and rituximab works in treating patients with B-cell lymphoma or chronic lymphocytic leukemia who are undergoing an allogeneic (donor) bone marrow transplant. The type of bone marrow transplant is a less intensive or "mini" transplant using a relative as the bone marrow donor. The donated bone marrow stem cells may replace the patient's immune system cells and help destroy any remaining cancer (graft-versus-tumor effect). Patients undergoing this type of transplant often have more than one relative who could be a donor. The trial is also studying a new way of choosing amongst possible donors which might improve how the rituximab works.
This phase II for relapsed or refractory B-cell malignancies builds on the platform of nonmyeloablative, related-donor, HLA (human leukocyte antigen)-matched or HLA-haploidentical BMT with post-transplantation high-dose cyclosphosphamide administered for prophylaxis of graft-versus-host disease and graft rejection. Rituximab is added to the transplant regimen with the goal of augmenting anti-tumor activity. In patients with B-cell lymphomas, specific polymorphisms in the immunoglobulin Fc receptor have been associated with greater sensitivity to rituximab or rituximab-based therapies, translating in some series into higher response rates and improved progression-free survival. This raises the possibility of selecting donors who carry this permissive polymorphism. This trial identifies and selects donors who have the favorable polymorphism at FcgammaR3A-158, thereby potentially conferring greater sensitivity to rituximab in the host after BMT.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
135
Days -6 through -2: 30 mg/m\^2 IV daily
Days -6 and -5: 14.5 mg/kg IV daily; Days 3 and 4: 50 mg/kg IV daily
Day -1: 200 centigray (cGy) in a single fraction
Start on Day 5 through Day 180
Days 5 through 35: 15 mg/kg PO three times daily (max 3 g/day)
Day 30 and every week after for 8 total doses: 375 mg/m\^2 IV
Day 0: Donor bone marrow infusion
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Baltimore, Maryland, United States
Progression-free Survival
Percentage of participants alive and without relapse or disease progression.
Time frame: 1 year post-intervention
Progression-free Survival
Percentage of participants alive with and without relapse.
Time frame: 2 years post-intervention
Overall Survival
Percentage of participants alive.
Time frame: 1 year post intervention
Overall Survival
Percentage of participants alive.
Time frame: 2 years post intervention
Relapse
Percentage of participants alive with relapse or disease progression.
Time frame: 1 year post intervention
Relapse
Percentage of participants alive with relapse or disease progression.
Time frame: 2 years post intervention
Non-relapse Mortality
Percentage of participants who died due to BMT-related reasons.
Time frame: 1 year post intervention
Incidence of Grades II-IV Acute Graft-versus-Host-Disease (GVHD)
Percentage of participants who experienced grade II, III, or IV acute GVHD. Acute GVHD is graded using the Przepiorka criteria.
Time frame: 1 year post intervention
Incidence of Grades III-IV Acute GVHD
Percentage of participants who experienced grade II, III, or IV acute GVHD. Acute GVHD is graded using the Przepiorka criteria.
Time frame: 1 year post intervention
Incidence of Chronic GVHD
Percentage of participants who experienced chronic GVHD. Chronic GVHD is graded using NIH consensus criteria and Seattle criteria.
Time frame: 1 year post intervention
Engraftment
Percentage of patients who engrafted neutrophils and platelets.
Time frame: Day 60
Graft Failure
Percentage of participants who failed to engraft.
Time frame: Day 60
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