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About
This phase II trial studies how well cyclophosphamide works in preventing chronic graft-versus-host disease after allogeneic peripheral blood stem cell transplant in patients with hematological malignancies. Giving chemotherapy and total-body irradiation before transplantation helps stop the growth of cancer cells and prevents the patient's immune system from rejecting the donor's stem cells. Healthy stem cells from a donor that are infused into the patient help the patient's bone marrow make blood cells; red blood cells, white blood cells, and platelets. Sometimes, however, the transplanted donor cells can cause an immune response against the body's normal cells, which is called graft-versus-host disease (GVHD). Giving cyclophosphamide after transplant may prevent this from happening or may make chronic GVHD less severe.
Full description
PRIMARY OBJECTIVES:
I. The primary objective of this study is to assess outcomes when high-dose cyclophosphamide (CY) is administered on days 3 and 4 followed by cyclosporine (CSP) after human leukocyte antigen (HLA)-matched related or unrelated mobilized blood cell transplantation with total-body irradiation (TBI) or busulfan (BU)-based conditioning.
SECONDARY OBJECTIVES:
I. The secondary objective of this study is to assess hematopoietic cell transplantation (HCT) outcomes when withdrawal of CSP is accelerated in patients without acute graft-versus-host disease (GVHD).
OUTLINE: Patients' conditioning regimens are determined by the Clinical Coordinator after consultation with the attending physician. Based on disease, patients receive either TBI or fludarabine and busulfan.
PREPARATIVE REGIMEN: Patients receive TBI twice daily (BID) on days -4 or -3 to -1. Some patients also receive fludarabine intravenously (IV) daily on days -5 to -2 and busulfan IV over 3 hours once daily (QD) or over 2 hours every 6 hours on days -5 to -2. Patients may also undergo central nervous system (CNS) prophylaxis, testicular irradiation, and/or involved field irradiation as per standard practice.
TRANSPLANTATION: Patients undergo allogeneic peripheral blood stem cell transplantation (PBSCT) on day 0 per standard practice.
GVHD PROPHYLAXIS: Patients receive cyclophosphamide IV over 1-2 hours on days 3-4. Patients also receive cyclosporine IV every 12 hours or every 8 hours beginning on day 5 with taper on days 56-126.
Treatment continues in the absence of disease progression or unacceptable toxicity.
After completion of study treatment, patients are followed up at day 180 and then annually for 5 years.
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Inclusion criteria
Acute lymphocytic leukemia (ALL) in morphologic first complete remission (CR1) with high risk features defined as, but not limited to: evidence of adverse cytogenetics such as t(9;22), t(1;19), t(4;11), or mixed-lineage leukemia (MLL) rearrangements; presence of minimal residual disease; progenitor B-cell immunophenotype; high white blood cells (WBC) at diagnosis (> 30,000/ul in B-ALL; > 100,000/ul in T-ALL); or delayed attainment of CR (> 4 weeks) after induction therapy; additional clinical characteristics deemed to confer a high relapse risk may be discussed with and approved by the Principal Investigator (PI)
Acute myeloid leukemia (AML) in CR1 EXCEPT patients with low-risk features defined as:
Acute leukemia in 2nd or greater CR (CR >= 2)
Refractory or relapsed AML with =< 10% bone marrow blasts and no circulating blasts or proven extramedullary disease
AML transformed from myelodysplastic syndrome (MDS) with < 10% bone marrow blasts
MDS with following high risk features:
Chronic myelogenous leukemia (CML) beyond 1st chronic phase or resistant or intolerant to tyrosine kinase inhibitors (adults) or any phase (pediatric < 21 years)
Chronic myelomonocytic leukemia
Philadelphia-negative myeloproliferative disorder
Lymphoma: relapsed chemotherapy-sensitive (complete or partial response) Hodgkin or non-Hodgkin lymphoma
Multiple myeloma-stage III
The patient or legal representative must be able to understand and give written informed consent
DONORS: The donor must be a genotypically HLA-identical sibling, a phenotypically HLA-matched first-degree relative, or an unrelated donor who is molecularly matched with the patient at HLA-A, B, C, DRB1
DONORS: Donors must meet the selection criteria for administration of G-CSF (filgrastim) and apheresis defined by the Foundation for the Accreditation of Cell Therapy (FACT) and will be screened per the American Association of Blood Banks (AABB)
DONORS: Donors must be capable of giving informed consent
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43 participants in 1 patient group
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Data sourced from clinicaltrials.gov
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