| Inclusion Criteria: | 1) Patients with confirmed CD20+ follicle center lymphoma that meet the following: a. Histologically confirmed recurrent REAL classification CD20+ follicle center lymphoma, follicular grades I and II, OR b. Histologically confirmed WHO classification CD20+ follicular lymphoma grades 1, 2, or 3a For either classification, the diffuse component of large cleaved cells (if present) cannot be > 50% of cellularity. Patients do not have to express t(14;18) to be eligible.
2) Age </= 75 years of age at time of first registration.
3) Any number of prior regimens (including autologous HCT). The most recent prior regimen must have occurred > 28 days before study enrollment.
4) Patients must demonstrate chemo-sensitive or radiosensitive disease to most recent prior regimen and meet one of the following: a. Patients in 2nd or subsequent CR OR b. Patients in 1st or subsequent PR c. Patients experiencing a relapse that demonstrates a response as defined below: Response is defined as largest nodal mass </= 3 cm and >/= 50% reduction in estimated lymph node volume measured as a product of bi-dimensional measurements. Patients with stable follicular lymphoma are eligible if all lymph node masses are </= 3 cm and are smaller or unchanged in size to the most recent salvage regimen.
5) Patients with HLA-matched donors that meet the following criteria: a. 6/6 HLA-matched related donor. HLA typing must be performed by DNA methods for HLA-A and B at intermediate (or higher) resolution, and DRB1 at high resolution. The donor must be willing to donate peripheral blood stem cells and meet institutional criteria for stem cell donation. The donor must be medically eligible to donate stem cells according to individual transplant center criteria. OR
6) contd from 5. b. 8/8 HLA-matched unrelated donor. HLA typing must be performed by DNA methods for HLA-A, B, Cand DRB1 at high resolution. The donor must be willing to donate peripheral blood stem cells and meet NMDP criteria for stem cell donation. The donor must be medically eligible to donate stem cells according to NMDP criteria.
7) Patients with adequate organ function as measured by: a. Cardiac: Left ventricular ejection fraction at rest > 45%. b. Pulmonary: DLCO, FEV1, FVC > 50% of predicted (corrected for hemoglobin). For patients where pulse oximetry is performed, baseline O2 saturation > 85% (when pulmonary function testing cannot be performed due to age restrictions). c. Hepatic: Bilirubin < 2x the upper limit of normal for age as per local laboratory; ALT and AST < 3x the upper limit of normal as per local laboratory.
8) contd from 7. d. Renal: Calculated or measured creatinine clearance >/= 40 mL/min; if creatinine >/= 1.5 mg/dL then 24 hour urine for measured creatinine clearance should be performed
9) Signed informed consent form.
10) Donor Inclusion Criteria The donor must be medically eligible and consent to donate stem cells according to individual transplant center criteria for related donors or NMDP criteria for unrelated donors. |