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About
This is a Phase II study of allogeneic hematopoietic stem cell transplant (HCT) using a myeloablative preparative regimen (of either total body irradiation (TBI); or, fludarabine/busulfan for patients unable to receive further radiation). followed by a post-transplant graft-versus-host disease (GVHD) prophylaxis regimen of post-transplant cyclophosphamide (PTCy), tacrolimus (Tac), and mycophenolate mofetil (MMF).
Enrollment
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Inclusion and exclusion criteria
-Inclusion Criteria:
Age: ≤ 60 years of age
Performance Status: Karnofsky ≥ 70%, Lansky play score ≥ 70
Consent: Voluntary written consent (adult or legally authorized representative; or parental/guardian)
Adequate Organ Function:
Other Inclusion Criteria:
Women of child bearing potential and sexually active males with partners of child bearing potential must agree to use adequate birth control for the duration of treatment.
Donor Availability: Patients considered for transplantation must have a sufficient graft as based on current criteria of the University of Minnesota Blood and Marrow Transplantation Program
Eligible Diseases and Status: Patients are eligible unless their treatment is to be guided by a higher priority protocol.
Acute Leukemias: Must be in remission by morphology (≤5% blasts). Also a small percentage of blasts that is equivocal between marrow regeneration vs. early relapse are acceptable provided there are no associated cytogenetic markers consistent with relapse.
Acute Myeloid Leukemia (AML) and related precursor neoplasms: 2nd or greater complete remission (CR); first complete remission (CR1) in patients > 60 years old; CR1 in ≤ 60 years old that is NOT considered as favorable-risk.
Favorable risk AML is defined as having one of the following:
Very high risk pediatric patients with AML: Patients <21 years, however, are eligible with (M2 marrow) with < 25% blasts in marrow after having failed one or more cycles of chemotherapy.
Acute lymphoblastic leukemia (ALL)/lymphoma: second or greater CR; CR1 unable to tolerate consolidation chemotherapy due to chemotherapy-related toxicities; CR1 high-risk ALL.
High risk ALL is defined as having one of the following:
Very high risk pediatric patients with ALL: patients <21 years are also considered high risk CR1 if they had M2 or M3 marrow at day 42 from the initiation of induction or M3 marrow at the end of induction. They are eligible once they achieve a complete remission.
Chronic Myelogenous Leukemia excluding refractory blast crisis: To be eligible in first chronic phase (CP1) patient must have failed or be intolerant to one or more tyrosine kinase inhibitors.
Plasma Cell Leukemia after initial therapy, in patients who have achieved at least a partial remission
Myeloproliferative Neoplasms/Myelofibrosis, either primary as a result of polycythemia vera or essential thrombocythemia, with disease risk of intermediate or high-risk according to DIPSS criteria. Blasts must be <10% by bone marrow aspirate morphology.
Myelodysplasia (MDS) IPSS INT-2 or High Risk (i.e. RAEB, RAEBt) or Refractory Anemia with severe pancytopenia, transfusion dependence, or high risk cytogenetics or molecular features. Blasts must be < 10% by a representative bone marrow aspirate morphology.
Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma (CLL/SLL), Marginal Zone B-Cell Lymphoma or Follicular Lymphoma are eligible if there was disease progression/relapse within 12 of achieving a partial or complete remission. Patients who had remissions lasting > 12 months, are eligible after at least two prior therapies. Patients with bulky disease (nodal mass greater than 5 cm) should be considered for debulking chemotherapy before transplant.
Lymphoplasmacytic Lymphoma, Mantle-Cell Lymphoma, Prolymphocytic Leukemia are eligible after initial therapy in CR1+ or PR1+.
Diffuse large Cell NHL > CR/> PR: Patients in CR/PR with initial short remission (<6 months) are eligible, or those who have failed/or are not eligible for autologous transplant.
Lymphoblastic Lymphoma, Burkitt's Lymphoma, and other high-grade NHL after initial therapy if stage III/IV in CR1/PR1 or after progression if stage I/II < 1 year.
Multiple Myeloma beyond PR2: Patients with chromosome 13 abnormalities, first response lasting less than 6 months, or β-2 microglobulin > 3 mg/L, may be considered for this protocol after initial therapy.
Juvenile myelomonocytic leukemia
Biphenotypic/Undifferentiated/Prolymphocytic Leukemias in first or subsequent CR.
MRD positive leukemia (AML, ALL or accelerated/blast phase CML). Selected patients in morphologic CR, but with positive immunophenotypic (flow cytometry) or molecular evidence of MRD may be eligible if recent chemotherapy has not resulted in MRD negative status.
Natural Killer Cell Malignancies
Acquired Bone Marrow Failure Syndromes except for Fanconi Anemia or Dyskeratosis Congenita
Other Leukemia Subtypes: A major effort in the field of hematology is to identify patients who are of high risk for treatment failure so that patients can be appropriately stratified to either more (or less) intensive therapy. This effort is continually ongoing and retrospective studies identify new disease features or characteristics that are associated with treatment outcomes. Therefore, if new features are identified after the writing of this protocol, patients can be enrolled with the approval of two members of the study committee.
Exclusion Criteria:
Primary purpose
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300 participants in 2 patient groups
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Central trial contact
Tamy Grainger
Data sourced from clinicaltrials.gov
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