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The Role of Donor Lymphocyte Infusion (DLI) in Post-Hematopoietic Cell Transplant (HCT) Relapse for Chronic Myeloid Leukemia (CML) in the Tyrosine Kinase Inhibitor (TKI) Era.

ABSTRACT: Treatment for relapse of chronic myeloid leukemia (CML) following hematopoietic cell transplantation (HCT) includes tyrosine kinase inhibitors (TKIs) with or without donor lymphocyte infusions (DLIs), but the most effective treatment strategy is unknown. This study was performed through the Center for International Blood and Marrow Transplant Research (CIBMTR) database. We retrospectively reviewed all patients reported to the CIBMTR registry from 2002 to 2014 who underwent HCT for CML and were alive 30 days postrelapse. A total of 215 HCT recipients relapsed and were analyzed in the following groups: (1) TKI alone (n = 128), (2) TKI with DLI (n = 48), and (3) DLI without TKI (n = 39). In multivariate analysis, disease status prior to HCT had a significant effect on overall survival (OS). Patients who received a DLI alone compared with a TKI with a DLI had inferior survival (hazard ratio, 2.28; 95% confidence interval, 1.23 to 4.24; P= .009). Those who received a TKI alone had similar survival compared with those who received a TKI with a DLI (P = .81). These data support that despite use of TKIs pretransplantation, TKI salvage therapy continues to provide significant survival following relapse in patients with CML following HCT. These data do not suggest that adding a DLI to a TKI adds an improvement in OS.

SUBMITTER: Schmidt S

PROVIDER: S-EPMC7367282 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature

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The Role of Donor Lymphocyte Infusion (DLI) in Post-Hematopoietic Cell Transplant (HCT) Relapse for Chronic Myeloid Leukemia (CML) in the Tyrosine Kinase Inhibitor (TKI) Era.

Schmidt Sarah S Liu Ying Y Hu Zhen-Huan ZH Williams Kirsten M KM Lazarus Hillard M HM Vij Ravi R Kharfan-Dabaja Mohamed A MA Ortí Guillermo G Wiernik Peter H PH Weisdorf Daniel D Kamble Rammurti T RT Herzig Roger R Wirk Baldeep B Cerny Jan J Bacher Ulrike U Chaudhri Naeem A NA Nathan Sunita S Farhadfar Nosha N Aljurf Mahmoud M Gergis Usama U Szer Jeffrey J Seo Sachiko S Hsu Jack W JW Olsson Richard F RF Maharaj Dipnarine D George Biju B Hildebrandt Gerhard C GC Agrawal Vaibhav V Nishihori Taiga T Abdel-Azim Hisham H Alyea Edwin E Popat Uday U Sobecks Ronald R Scott Bart L BL Holter Chakrabarty Jennifer J Saber Wael W

Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation 20200214 6

Treatment for relapse of chronic myeloid leukemia (CML) following hematopoietic cell transplantation (HCT) includes tyrosine kinase inhibitors (TKIs) with or without donor lymphocyte infusions (DLIs), but the most effective treatment strategy is unknown. This study was performed through the Center for International Blood and Marrow Transplant Research (CIBMTR) database. We retrospectively reviewed all patients reported to the CIBMTR registry from 2002 to 2014 who underwent HCT for CML and were a ...[more]

PMID: 32062061

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Project description:ImportanceThe optimal treatment approach to patients with acute myeloid leukemia (AML) who relapse after an allogeneic hematopoietic cell transplant (allo-HCT) remains elusive. No randomized clinical trial comparing survival outcomes of a second allo-HCT (allo-HCT2) vs donor lymphocyte infusion (DLI) has been conducted to date.ObjectiveTo compare overall survival (OS) after an allo-HCT2 or DLI in relapsed AML after a first allo-HCT.Design, setting, and participantsA retrospective registry study from the Acute Leukemia Working Party of the European Society for Blood and Marrow Transplantation involving 418 adults who received an allo-HCT2 (n = 137) or DLI (n = 281) for postallograft-relapsed AML. Analysis was assessed on the principle of intent-to-first received intervention. The data were collected from November 21, 2015, to May 15, 2017, and analysis was performed June 1, 2017.Main outcomes and measuresNumber of patients with relapsed AML who are alive after 2 years and 5 years from receiving an allo-HCT2 or DLI.ResultsOf the 418 patients, 228 (54.5%) were men; mean age was 46.2 years (interquartile range, 36.5-56.9 years). There was no apparent difference in OS whether an allo-HCT2 or DLI was prescribed (2-year OS with allo-HCT2, 26%; 5-year OS with allo-HCT2, 19%; 2-year OS with DLI, 25%; 5-year OS with DLI, 15%; P = .86). Overall survival was better if either of these procedures was offered when the patient was in complete remission (hazard ratio, 0.55; 95% CI, 0.41-0.74; P < .001). Conversely, OS was low for patients relapsing within less than 6 months after an allo-HCT1, regardless of the treatment prescribed (5-year OS: allo-HCT2, 9%; 95% CI, 1%-17% vs DLI, 4%; 95% CI, 1%-8%; P = .86).Conclusion and relevanceHeterogeneity of the patient-, disease-, and treatment-related characteristics limit the ability to recommend one approach over another. Findings of this study highlight that best outcomes seem to be achieved in patients relapsing 6 or more months from an allo-HCT1 or those in complete remission at the time of either allo-HCT2 or DLI.

Dataset Information

The Role of Donor Lymphocyte Infusion (DLI) in Post-Hematopoietic Cell Transplant (HCT) Relapse for Chronic Myeloid Leukemia (CML) in the Tyrosine Kinase Inhibitor (TKI) Era.

Publications

The Role of Donor Lymphocyte Infusion (DLI) in Post-Hematopoietic Cell Transplant (HCT) Relapse for Chronic Myeloid Leukemia (CML) in the Tyrosine Kinase Inhibitor (TKI) Era.

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