Combination of Donor Lymphocyte Infusion and Blinatumomab for B-Cell Lymphoblastic Lymphoma Relapse after Allogeneic
Jinichi Mori1,2,3,4, Naoki Shingai5, Takeshi Kobayashi5
1Research Institute of Innovative Medicine, Tokiwa Foundation, Iwaki, Japan.
A woman in her forties with relapsed B-cell lymphoblastic lymphoma was treated with blinatumomab, but the drug proved ineffective. Salvage therapy with clofarabine induced a complete remission, and she received an allogeneic stem-cell transplantation (allo-SCT) from an HLA-matched sibling donor. However, her disease relapsed only 4 months after the allo-SCT. Three courses of combination therapy with donor lymphocyte infusion (DLI) and blinatumomab were administered, and the tumor progression was well controlled for 6 months, leading to a second allo-SCT from an HLA-haploidentical donor. The remission was persistent for approximately 1 year, but the disease relapsed in her central nervous system, and she eventually died. Our case demonstrated the efficacy and safety of concomitant use of DLI and blinatumomab. This combination presumably enhanced a graft-versus-lymphoma effect of allogeneic T-cells without provoking graft-versus-host disease.
A woman in her forties with relapsed B-cell lymphoblastic lymphoma was treated with blinatumomab, but the drug proved ineffective. Salvage therapy with clofarabine induced a complete remission, and she received an allogeneic stem-cell transplantation (allo-SCT) from an HLA-matched sibling donor. However, her disease relapsed only 4 months after the allo-SCT. Three courses of combination therapy with donor lymphocyte infusion (DLI) and blinatumomab were administered, and the tumor progression was well controlled for 6 months, leading to a second allo-SCT from an HLA-haploidentical donor. The remission was persistent for approximately 1 year, but the disease relapsed in her central nervous system, and she eventually died. Our case demonstrated the efficacy and safety of concomitant use of DLI and blinatumomab. This combination presumably enhanced a graft-versus-lymphoma effect of allogeneic T-cells without provoking graft-versus-host disease.
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