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Safety but Limited Efficacy of Donor Lymphocyte Infusion for Post-transplantation Cyclophosphamide-treated Patients

Abstract

The therapeutic efficacy of donor lymphocyte infusions (DLIs) given after allogeneic hematopoietic cell transplantation (HCT) is limited by risk of graft-versus-host disease (GVHD). Post-transplantation cyclophosphamide (PTCy) effectively prevents severe GVHD, but there are limited data on outcomes of DLIs given to PTCy-treated patients. We reviewed 162 consecutive PTCy-treated patients transplanted between 2015-2022 within the Center for Immuno-Oncology at the National Cancer Institute. Of 38 DLIs given to 21 patients after 22 HCTs, few DLIs were associated with toxicities of acute GVHD (7.8%), cytokine release syndrome (CRS, 7.8%), or chronic GVHD (2.6%), and all occurred in those receiving serotherapy-containing pre-HCT conditioning (50% of HCTs). Seven DLIs resulted in complete response (18.4%), with 5 of these given after HCTs using serotherapy-containing conditioning. Excluding infectious indications, complete response to DLIs given after transplants with versus without serotherapy-containing pre-HCT conditioning were 30% and 4.3%, respectively. Two patients received DLI for infection and experienced complete resolution without GVHD or CRS, although the efficacy cannot be definitively attributable to the DLI. DLIs given to PTCy-treated patients had low toxicity but limited efficacy, although pre-HCT serotherapy may modulate both toxicity and response. Novel strategies are needed to enhance the therapeutic efficacy of post-transplant cellular therapies without aggravating GVHD.

References
1.
Rettig A, Ihorst G, Bertz H, Lubbert M, Marks R, Waterhouse M . Donor lymphocyte infusions after first allogeneic hematopoietic stem-cell transplantation in adults with acute myeloid leukemia: a single-center landmark analysis. Ann Hematol. 2021; 100(9):2339-2350. PMC: 8357755. DOI: 10.1007/s00277-021-04494-z. View

2.
Goldsmith S, Slade M, DiPersio J, Westervelt P, Schroeder M, Gao F . Donor-lymphocyte infusion following haploidentical hematopoietic cell transplantation with peripheral blood stem cell grafts and PTCy. Bone Marrow Transplant. 2017; 52(12):1623-1628. DOI: 10.1038/bmt.2017.193. View

3.
Warlick E, DeFor T, Blazar B, Burns L, Verneris M, Ustun C . Successful remission rates and survival after lymphodepleting chemotherapy and donor lymphocyte infusion for relapsed hematologic malignancies postallogeneic hematopoietic cell transplantation. Biol Blood Marrow Transplant. 2011; 18(3):480-6. PMC: 4107638. DOI: 10.1016/j.bbmt.2011.11.030. View

4.
Przepiorka D, Weisdorf D, MARTIN P, Klingemann H, Beatty P, Hows J . 1994 Consensus Conference on Acute GVHD Grading. Bone Marrow Transplant. 1995; 15(6):825-8. View

5.
Ghiso A, Raiola A, Gualandi F, Dominietto A, Varaldo R, Van Lint M . DLI after haploidentical BMT with post-transplant CY. Bone Marrow Transplant. 2014; 50(1):56-61. DOI: 10.1038/bmt.2014.217. View