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About
The purpose of this study is to determine if double autologous then allogeneic hematopoietic cell transplant may offer an improved treatment option for patients with relapsed diffuse large B-cell lymphoma (DLBCL) who are not likely to be cured by the conventional transplantation regimen.
Full description
This study tests a tandem transplant approach that starts with transplantation of the participant's own hematopoietic (blood) cells, eg, autologous hematopoietic cell transplant (auto-HCT) as preparation for an subsequent matched-donor allogeneic HCT (allo-HCT).
Participants will be have progenitor cells (stem cells) mobilized into the peripheral blood with rituximab, chemotherapy (cyclophosphamide or etoposide), and filgrastim (G-CSF); undergo apheresis to collect autologous peripheral blood stem cells (PBSC, aka hematopoietic cells); and be re-infused with ≥ 3 x 10e6 CD34+ cells/kg (auto-HCT). Subsequently, participants will receive therapeutic, non-myeloablative chemotherapy (carmustine + cyclophosphamide + etoposide), then transplant conditioning [total lymphoid irradiation (TLI) + anti-thymocyte globulin (ATG)] followed by ≥ 2 x 10e6 CD34+ cells/kg allogeneic PBSC obtained from a human leukocyte antigen (HLA)-matched or HLA single allele / antigen-mismatched donor (allo-HCT). Donors will be mobilized with 16 µg/kg filgrastim. Participant allo-HCT transplant is to occur within 150 days of auto-HCT. Post-allo-HCT infusion treatment includes cyclosporine and mycophenolate mofetil (MMF)
Subject's participation ends if a suitable matched donor is not identified within the 150 days.
Pre-medication treatments administered during this study may include acetaminophen; diphenhydramine; hydrocortisone; and methylprednisolone.
Enrollment
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Inclusion and exclusion criteria
INCLUSION CRITERIA
Age 18 to 70 years.
Histologically-proven diffuse large B-cell lymphoma (DLBCL) by the World Health Organization (WHO) classification.
Relapse after achieving initial remission or failure to achieve initial remission. Patients with residual radiographic abnormalities after primary therapy are eligible if abnormalities are postive by fluorodeoxyglucose (FDG)-positron emission tomography (PET) (FDG-PET).
Receipt of 2 cycles of second-line therapy and FDG-PET positive per Stanford (central) review. FDG-PET to be done 2 weeks after cycle 2 of second line chemotherapy.
Eastern Cooperative Oncology Group (ECOG) performance status < 2
Matched related or unrelated donor identified and available
Bone marrow biopsy and cytogenetic analysis within 8 weeks of registration
Pretreatment serum bilirubin < 2 x the institutional upper limit of normal (ULN)
Serum creatinine < 2 x the institutional ULN and measured or estimated creatinine clearance > 60 mL/min by the following formula (all tests must be performed within 28 days prior to registration):
EKG within 42 days prior to registration with no significant abnormalities suggestive of active cardiac disease
Patients must have a radionuclide ejection fraction within 42 days of registration. If the ejection fraction is < 40%, the patient will not be eligible. If the ejection fraction is 40-50%, the patient will have a cardiology consult.
Corrected diffusion capacity > 55%.
Sexually active males are advised to use an accepted and effective method of birth control
Women of child-bearing potential are advised to use an accepted and effective method of birth control
Patients must sign and give written informed consent in accordance with institutional and federal guidelines. Patients must be informed of the investigational nature of this study.
EXCLUSION CRITERIA
DONOR ELIGIBILITY
Primary purpose
Allocation
Interventional model
Masking
3 participants in 1 patient group
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Data sourced from clinicaltrials.gov
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