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Phase 2 Poor Risk DLBCL of TLI and ATG Followed by Matched Allogeneic HT as Consolidation to Autologous HCT

Phase 2
Terminated
Conditions
Lymphoma, B-cell
Lymphoma, Non-Hodgkin
Diffuse Large B-cell Lymphoma (DLBCL)
Malignant Lymphoma, Non-Hodgkin
Interventions
Procedure: Autologous hematopoietic stem cell transplantation (auto-HSCT)
Procedure: Allogeneic hematopoietic stem cell transplantation (allo-HSCT)
Procedure: Total lymphoid irradiation (TLI)
Drug: Anti-thymocyte globulin (ATG)
Registration Number
NCT00482053
Lead Sponsor
Stanford University
Brief Summary

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.

Detailed 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.

Recruitment & Eligibility

Status
TERMINATED
Sex
All
Target Recruitment
3
Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
Auto-HCT followed by Allo-HCT for Poor-risk DLBCLAutologous hematopoietic stem cell transplantation (auto-HSCT)Participants will have peripheral blood stem cells (PBSC, aka progenitor / stem cells) mobilized to peripheral blood with rituximab, chemotherapy (cyclophosphamide or etoposide), and filgrastim; undergo apheresis to collect (self/autologous PBSC), and receive carmustine, etoposide, and cyclophosphamide as conditioning for PBSC infusion as a hematopoietic cell transplant (auto-HCT). Then participants will receive allogeneic HCT (allo-HCT) transplant conditioning \[total lymphoid irradiation (TLI) + anti-thymocyte globulin (ATG)\] followed by allogenic PBSC (allo-HCT) obtained from a human leukocyte antigen (HLA)-matched or single mismatch filgrastim-mobilized donor. Participant allo-HCT transplant is to occur within 150 days of auto-HCT. Post-allo-HCT treatment includes cyclosporine + mycophenolate mofetil (MMF). Subject's participation ends if donor is not identified within 150 days. Pre-medication includes acetaminophen; diphenhydramine; hydrocortisone; \& methylprednisolone.
Auto-HCT followed by Allo-HCT for Poor-risk DLBCLAllogeneic hematopoietic stem cell transplantation (allo-HSCT)Participants will have peripheral blood stem cells (PBSC, aka progenitor / stem cells) mobilized to peripheral blood with rituximab, chemotherapy (cyclophosphamide or etoposide), and filgrastim; undergo apheresis to collect (self/autologous PBSC), and receive carmustine, etoposide, and cyclophosphamide as conditioning for PBSC infusion as a hematopoietic cell transplant (auto-HCT). Then participants will receive allogeneic HCT (allo-HCT) transplant conditioning \[total lymphoid irradiation (TLI) + anti-thymocyte globulin (ATG)\] followed by allogenic PBSC (allo-HCT) obtained from a human leukocyte antigen (HLA)-matched or single mismatch filgrastim-mobilized donor. Participant allo-HCT transplant is to occur within 150 days of auto-HCT. Post-allo-HCT treatment includes cyclosporine + mycophenolate mofetil (MMF). Subject's participation ends if donor is not identified within 150 days. Pre-medication includes acetaminophen; diphenhydramine; hydrocortisone; \& methylprednisolone.
Auto-HCT followed by Allo-HCT for Poor-risk DLBCLTotal lymphoid irradiation (TLI)Participants will have peripheral blood stem cells (PBSC, aka progenitor / stem cells) mobilized to peripheral blood with rituximab, chemotherapy (cyclophosphamide or etoposide), and filgrastim; undergo apheresis to collect (self/autologous PBSC), and receive carmustine, etoposide, and cyclophosphamide as conditioning for PBSC infusion as a hematopoietic cell transplant (auto-HCT). Then participants will receive allogeneic HCT (allo-HCT) transplant conditioning \[total lymphoid irradiation (TLI) + anti-thymocyte globulin (ATG)\] followed by allogenic PBSC (allo-HCT) obtained from a human leukocyte antigen (HLA)-matched or single mismatch filgrastim-mobilized donor. Participant allo-HCT transplant is to occur within 150 days of auto-HCT. Post-allo-HCT treatment includes cyclosporine + mycophenolate mofetil (MMF). Subject's participation ends if donor is not identified within 150 days. Pre-medication includes acetaminophen; diphenhydramine; hydrocortisone; \& methylprednisolone.
Auto-HCT followed by Allo-HCT for Poor-risk DLBCLCarmustineParticipants will have peripheral blood stem cells (PBSC, aka progenitor / stem cells) mobilized to peripheral blood with rituximab, chemotherapy (cyclophosphamide or etoposide), and filgrastim; undergo apheresis to collect (self/autologous PBSC), and receive carmustine, etoposide, and cyclophosphamide as conditioning for PBSC infusion as a hematopoietic cell transplant (auto-HCT). Then participants will receive allogeneic HCT (allo-HCT) transplant conditioning \[total lymphoid irradiation (TLI) + anti-thymocyte globulin (ATG)\] followed by allogenic PBSC (allo-HCT) obtained from a human leukocyte antigen (HLA)-matched or single mismatch filgrastim-mobilized donor. Participant allo-HCT transplant is to occur within 150 days of auto-HCT. Post-allo-HCT treatment includes cyclosporine + mycophenolate mofetil (MMF). Subject's participation ends if donor is not identified within 150 days. Pre-medication includes acetaminophen; diphenhydramine; hydrocortisone; \& methylprednisolone.
Auto-HCT followed by Allo-HCT for Poor-risk DLBCLEtoposideParticipants will have peripheral blood stem cells (PBSC, aka progenitor / stem cells) mobilized to peripheral blood with rituximab, chemotherapy (cyclophosphamide or etoposide), and filgrastim; undergo apheresis to collect (self/autologous PBSC), and receive carmustine, etoposide, and cyclophosphamide as conditioning for PBSC infusion as a hematopoietic cell transplant (auto-HCT). Then participants will receive allogeneic HCT (allo-HCT) transplant conditioning \[total lymphoid irradiation (TLI) + anti-thymocyte globulin (ATG)\] followed by allogenic PBSC (allo-HCT) obtained from a human leukocyte antigen (HLA)-matched or single mismatch filgrastim-mobilized donor. Participant allo-HCT transplant is to occur within 150 days of auto-HCT. Post-allo-HCT treatment includes cyclosporine + mycophenolate mofetil (MMF). Subject's participation ends if donor is not identified within 150 days. Pre-medication includes acetaminophen; diphenhydramine; hydrocortisone; \& methylprednisolone.
Auto-HCT followed by Allo-HCT for Poor-risk DLBCLAnti-thymocyte globulin (ATG)Participants will have peripheral blood stem cells (PBSC, aka progenitor / stem cells) mobilized to peripheral blood with rituximab, chemotherapy (cyclophosphamide or etoposide), and filgrastim; undergo apheresis to collect (self/autologous PBSC), and receive carmustine, etoposide, and cyclophosphamide as conditioning for PBSC infusion as a hematopoietic cell transplant (auto-HCT). Then participants will receive allogeneic HCT (allo-HCT) transplant conditioning \[total lymphoid irradiation (TLI) + anti-thymocyte globulin (ATG)\] followed by allogenic PBSC (allo-HCT) obtained from a human leukocyte antigen (HLA)-matched or single mismatch filgrastim-mobilized donor. Participant allo-HCT transplant is to occur within 150 days of auto-HCT. Post-allo-HCT treatment includes cyclosporine + mycophenolate mofetil (MMF). Subject's participation ends if donor is not identified within 150 days. Pre-medication includes acetaminophen; diphenhydramine; hydrocortisone; \& methylprednisolone.
Auto-HCT followed by Allo-HCT for Poor-risk DLBCLMycophenolate mofetil (MMF)Participants will have peripheral blood stem cells (PBSC, aka progenitor / stem cells) mobilized to peripheral blood with rituximab, chemotherapy (cyclophosphamide or etoposide), and filgrastim; undergo apheresis to collect (self/autologous PBSC), and receive carmustine, etoposide, and cyclophosphamide as conditioning for PBSC infusion as a hematopoietic cell transplant (auto-HCT). Then participants will receive allogeneic HCT (allo-HCT) transplant conditioning \[total lymphoid irradiation (TLI) + anti-thymocyte globulin (ATG)\] followed by allogenic PBSC (allo-HCT) obtained from a human leukocyte antigen (HLA)-matched or single mismatch filgrastim-mobilized donor. Participant allo-HCT transplant is to occur within 150 days of auto-HCT. Post-allo-HCT treatment includes cyclosporine + mycophenolate mofetil (MMF). Subject's participation ends if donor is not identified within 150 days. Pre-medication includes acetaminophen; diphenhydramine; hydrocortisone; \& methylprednisolone.
Auto-HCT followed by Allo-HCT for Poor-risk DLBCLRituximabParticipants will have peripheral blood stem cells (PBSC, aka progenitor / stem cells) mobilized to peripheral blood with rituximab, chemotherapy (cyclophosphamide or etoposide), and filgrastim; undergo apheresis to collect (self/autologous PBSC), and receive carmustine, etoposide, and cyclophosphamide as conditioning for PBSC infusion as a hematopoietic cell transplant (auto-HCT). Then participants will receive allogeneic HCT (allo-HCT) transplant conditioning \[total lymphoid irradiation (TLI) + anti-thymocyte globulin (ATG)\] followed by allogenic PBSC (allo-HCT) obtained from a human leukocyte antigen (HLA)-matched or single mismatch filgrastim-mobilized donor. Participant allo-HCT transplant is to occur within 150 days of auto-HCT. Post-allo-HCT treatment includes cyclosporine + mycophenolate mofetil (MMF). Subject's participation ends if donor is not identified within 150 days. Pre-medication includes acetaminophen; diphenhydramine; hydrocortisone; \& methylprednisolone.
Auto-HCT followed by Allo-HCT for Poor-risk DLBCLFilgrastimParticipants will have peripheral blood stem cells (PBSC, aka progenitor / stem cells) mobilized to peripheral blood with rituximab, chemotherapy (cyclophosphamide or etoposide), and filgrastim; undergo apheresis to collect (self/autologous PBSC), and receive carmustine, etoposide, and cyclophosphamide as conditioning for PBSC infusion as a hematopoietic cell transplant (auto-HCT). Then participants will receive allogeneic HCT (allo-HCT) transplant conditioning \[total lymphoid irradiation (TLI) + anti-thymocyte globulin (ATG)\] followed by allogenic PBSC (allo-HCT) obtained from a human leukocyte antigen (HLA)-matched or single mismatch filgrastim-mobilized donor. Participant allo-HCT transplant is to occur within 150 days of auto-HCT. Post-allo-HCT treatment includes cyclosporine + mycophenolate mofetil (MMF). Subject's participation ends if donor is not identified within 150 days. Pre-medication includes acetaminophen; diphenhydramine; hydrocortisone; \& methylprednisolone.
Auto-HCT followed by Allo-HCT for Poor-risk DLBCLCyclophosphamideParticipants will have peripheral blood stem cells (PBSC, aka progenitor / stem cells) mobilized to peripheral blood with rituximab, chemotherapy (cyclophosphamide or etoposide), and filgrastim; undergo apheresis to collect (self/autologous PBSC), and receive carmustine, etoposide, and cyclophosphamide as conditioning for PBSC infusion as a hematopoietic cell transplant (auto-HCT). Then participants will receive allogeneic HCT (allo-HCT) transplant conditioning \[total lymphoid irradiation (TLI) + anti-thymocyte globulin (ATG)\] followed by allogenic PBSC (allo-HCT) obtained from a human leukocyte antigen (HLA)-matched or single mismatch filgrastim-mobilized donor. Participant allo-HCT transplant is to occur within 150 days of auto-HCT. Post-allo-HCT treatment includes cyclosporine + mycophenolate mofetil (MMF). Subject's participation ends if donor is not identified within 150 days. Pre-medication includes acetaminophen; diphenhydramine; hydrocortisone; \& methylprednisolone.
Auto-HCT followed by Allo-HCT for Poor-risk DLBCLCyclosporineParticipants will have peripheral blood stem cells (PBSC, aka progenitor / stem cells) mobilized to peripheral blood with rituximab, chemotherapy (cyclophosphamide or etoposide), and filgrastim; undergo apheresis to collect (self/autologous PBSC), and receive carmustine, etoposide, and cyclophosphamide as conditioning for PBSC infusion as a hematopoietic cell transplant (auto-HCT). Then participants will receive allogeneic HCT (allo-HCT) transplant conditioning \[total lymphoid irradiation (TLI) + anti-thymocyte globulin (ATG)\] followed by allogenic PBSC (allo-HCT) obtained from a human leukocyte antigen (HLA)-matched or single mismatch filgrastim-mobilized donor. Participant allo-HCT transplant is to occur within 150 days of auto-HCT. Post-allo-HCT treatment includes cyclosporine + mycophenolate mofetil (MMF). Subject's participation ends if donor is not identified within 150 days. Pre-medication includes acetaminophen; diphenhydramine; hydrocortisone; \& methylprednisolone.
Auto-HCT followed by Allo-HCT for Poor-risk DLBCLAcetaminophenParticipants will have peripheral blood stem cells (PBSC, aka progenitor / stem cells) mobilized to peripheral blood with rituximab, chemotherapy (cyclophosphamide or etoposide), and filgrastim; undergo apheresis to collect (self/autologous PBSC), and receive carmustine, etoposide, and cyclophosphamide as conditioning for PBSC infusion as a hematopoietic cell transplant (auto-HCT). Then participants will receive allogeneic HCT (allo-HCT) transplant conditioning \[total lymphoid irradiation (TLI) + anti-thymocyte globulin (ATG)\] followed by allogenic PBSC (allo-HCT) obtained from a human leukocyte antigen (HLA)-matched or single mismatch filgrastim-mobilized donor. Participant allo-HCT transplant is to occur within 150 days of auto-HCT. Post-allo-HCT treatment includes cyclosporine + mycophenolate mofetil (MMF). Subject's participation ends if donor is not identified within 150 days. Pre-medication includes acetaminophen; diphenhydramine; hydrocortisone; \& methylprednisolone.
Auto-HCT followed by Allo-HCT for Poor-risk DLBCLDiphenhydramineParticipants will have peripheral blood stem cells (PBSC, aka progenitor / stem cells) mobilized to peripheral blood with rituximab, chemotherapy (cyclophosphamide or etoposide), and filgrastim; undergo apheresis to collect (self/autologous PBSC), and receive carmustine, etoposide, and cyclophosphamide as conditioning for PBSC infusion as a hematopoietic cell transplant (auto-HCT). Then participants will receive allogeneic HCT (allo-HCT) transplant conditioning \[total lymphoid irradiation (TLI) + anti-thymocyte globulin (ATG)\] followed by allogenic PBSC (allo-HCT) obtained from a human leukocyte antigen (HLA)-matched or single mismatch filgrastim-mobilized donor. Participant allo-HCT transplant is to occur within 150 days of auto-HCT. Post-allo-HCT treatment includes cyclosporine + mycophenolate mofetil (MMF). Subject's participation ends if donor is not identified within 150 days. Pre-medication includes acetaminophen; diphenhydramine; hydrocortisone; \& methylprednisolone.
Auto-HCT followed by Allo-HCT for Poor-risk DLBCLHydrocortisoneParticipants will have peripheral blood stem cells (PBSC, aka progenitor / stem cells) mobilized to peripheral blood with rituximab, chemotherapy (cyclophosphamide or etoposide), and filgrastim; undergo apheresis to collect (self/autologous PBSC), and receive carmustine, etoposide, and cyclophosphamide as conditioning for PBSC infusion as a hematopoietic cell transplant (auto-HCT). Then participants will receive allogeneic HCT (allo-HCT) transplant conditioning \[total lymphoid irradiation (TLI) + anti-thymocyte globulin (ATG)\] followed by allogenic PBSC (allo-HCT) obtained from a human leukocyte antigen (HLA)-matched or single mismatch filgrastim-mobilized donor. Participant allo-HCT transplant is to occur within 150 days of auto-HCT. Post-allo-HCT treatment includes cyclosporine + mycophenolate mofetil (MMF). Subject's participation ends if donor is not identified within 150 days. Pre-medication includes acetaminophen; diphenhydramine; hydrocortisone; \& methylprednisolone.
Auto-HCT followed by Allo-HCT for Poor-risk DLBCLMethylprednisoloneParticipants will have peripheral blood stem cells (PBSC, aka progenitor / stem cells) mobilized to peripheral blood with rituximab, chemotherapy (cyclophosphamide or etoposide), and filgrastim; undergo apheresis to collect (self/autologous PBSC), and receive carmustine, etoposide, and cyclophosphamide as conditioning for PBSC infusion as a hematopoietic cell transplant (auto-HCT). Then participants will receive allogeneic HCT (allo-HCT) transplant conditioning \[total lymphoid irradiation (TLI) + anti-thymocyte globulin (ATG)\] followed by allogenic PBSC (allo-HCT) obtained from a human leukocyte antigen (HLA)-matched or single mismatch filgrastim-mobilized donor. Participant allo-HCT transplant is to occur within 150 days of auto-HCT. Post-allo-HCT treatment includes cyclosporine + mycophenolate mofetil (MMF). Subject's participation ends if donor is not identified within 150 days. Pre-medication includes acetaminophen; diphenhydramine; hydrocortisone; \& methylprednisolone.
Primary Outcome Measures
NameTimeMethod
Event-free Survival (EFS) Per Protocol48 months

Event-free survival (EFS) through 4 years, as assessed in participants with poor-risk recurrent or primary refractory DLBCL treated with TLI and ATG followed by matched allogeneic hematopoietic cell transplantation as a consolidation to HCT. Event is defined as tumor progression or death.

Secondary Outcome Measures
NameTimeMethod
Median Time to Neutrophil Engraftment After Autologous Transplantwithin 1 month

Reported as neutrophil engraftment after autologous transplant, defined as absolute neutrophil count (ANC) \> 500/µL, counting from the day of transplant.

Median Time to Platelet Engraftment After Autologous Transplantwithin 1 month

Reported as platelet engraftment after autologous transplant, defined as platelet count \> 20,000/µL, counting from the day of transplant.

Median Time to Neutrophil Engraftment After Allogeneic Transplantwithin 1 month

Reported as neutrophil engraftment after allogeneic transplant, defined as absolute neutrophil count (ANC) \> 500/µL, counting from the day of transplant.

Median Time to Platelet Engraftment After Allogeneic Transplantwithin 1 month

Reported as platelet engraftment after allogeneic transplant, defined as platelet count \> 20,000/µL, counting from the day of transplant.

Incidence of Chronic Graft vs Host Disease (GvHD)3 years

The incidence of chronic graft vs host disease (GvHD) is reported as any events within 3 years. Note that GvHD was assessed per investigator judgement. There was no protocol-specified criteria of GvHD.

Overall Survival (OS)3 years

To evaluate the overall and transplant related mortality rate, reported as the number of subjects remaining alive 3 years after transplant.

Trial Locations

Locations (1)

Stanford University School of Medicine

🇺🇸

Stanford, California, United States

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