Allogeneic Hematopoietic Stem Cell Transplantation Using a Non-myeloablative Preparative Regimen of Total Lymphoid Irradiation and Anti-thymocyte Globulin for Older Patients With Relapsed Lymphoid Malignancies

Inclusion criteria

• Any patient with one of the following hemato-lymphoid malignancies or syndromes in whom allogeneic stem cell transplantation is warranted. Specific disease categories include: non-follicular indolent advanced stage Non-Hodgkin Lymphomas, Mantle Cell Lymphoma, Marginal zone lymphoma, MALT, T cell lymphoma, Chronic Lymphocytic or prolymphocytic Leukemia, Hodgkin Disease, and Waldenström macroglobulinemia. T-cell NOS, angioimmunoblastic lymphoma, HTLV1, T-gamma/delta, anaplastic lymphoma and Sezeay syndromes can be included after careful assessment by the PI and the protocol steering committee.
• Patients must be at least in partial remission (according to standard criteria) after salvage therapy and before (~one month) the start of the conditioning regimen.
• Patient age >50 and less than 66 years, or for patients <50 years of age but because of pre-existing medical conditions or prior therapy are considered to be at high risk for regimen-related toxicity associated with conventional myeloablative transplants.
• A fully HLA-identical sibling or matched unrelated donor is available (10/10 HLA match). Patients with one antigen mismatched donors can be considered but only after discussion with the transplant team and the Principal Investigator.
• Patient must be competent to give consent.

Exclusion criteria

• Patients with progressive hematolymphoid malignancies despite conventional therapies, and not in partial remission during the month preceding transplantation.
• Patients with DLBCL or cutaneous T cell lymphoma
• Uncontrolled CNS involvement with disease
• Fertile men or women unwilling to use contraceptive techniques during and for 12 months following treatment
• Females who are pregnant
• Organ dysfunction defined as follows:
• Cardiac function: ejection fraction <30% or uncontrolled cardiac failure
• Pulmonary: DLCO <40% predicted
• Renal: Serum creatinine >1.0 mg/dL; if serum creatinine >1.0 mg/dL, then the estimated glomerular filtration rate (GFR) must be >60 mL/min/1.73 m²
• Liver function abnormalities: elevation of bilirubin to > 3 mg/dl and/or transaminases >4x the upper limit of normal
• Karnofsky performance score < 70%
• Patients with poorly controlled hypertension on multiple antihypertensives
• Documented fungal disease that is progressive despite treatment
• Viral infections: HIV positive patients. Hepatitis B and C positive patients will be evaluated on a case by case basis
• Psychiatric disorders or psychosocial problems which in the opinion of the primary physician or Principal Investigator would place the patient at unacceptable risk from this regimen.
• Patients with prior malignancies diagnosed > 5 years ago without evidence of disease are eligible. Patients with a prior malignancy treated < 5 years ago but have a life expectancy of > 5 years for that malignancy are eligible.