Abstract |
Unmanipulated haploidentical peripheral blood stem cell transplantation (haplo-PBSCT) has been an established treatment to cure high-risk leukemia/ lymphoma. Relapse is the main cause of treatment failure for patients with relapsed/refractory disease or with very high-risk gene mutations such as TP53, TET2, and DNMT3a. In this study, we aimed to establish the tolerance and efficacy of prophylactic donor lymphocyte infusion (DLI) with G-CSF-primed peripheral blood progenitors for prevention of relapse in these very high-risk patients after haplo-PBSCT. The prophylactic DLI was given at a median of 77 days after transplantation in 31 of 45 consecutive patients with very high-risk leukemia/ lymphoma. The median dose of CD3+ cells for infusion was 1.8 × 107/kg. The 100-day incidences of acute graft-versus-host disease (GVHD) grades 2-4 and 3-4 after DLI were 55.3% and 10.2%. The 2-year incidences of chronic GVHD and severe chronic GVHD were 52.0% and 18.2%. The 2-year incidences of non-relapse mortality and relapse were 33.1% and 32.5%. The 2-year probabilities of overall survival and relapse-free survival were 40.1% and 31.9%. Poor-risk gene mutations (p = 0.029), disease in non-remission status prior to transplantation (p = 0.005), and donors older than 40 years of age (p = 0.043) were associated with relapse after DLI. In multivariate analysis, disease in non-remission status prior to transplantation was an independent risk factor of relapse (hazard ratio = 4.079; p = 0.035). These data showed the feasibility of the prophylactic DLI in the haplo-PBSCT setting and the anti-leukemic efficacy in very high-risk leukemia/ lymphoma.
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Authors | Xiao-Ning Gao, Ji Lin, Shu-Hong Wang, Wen-Rong Huang, Fei Li, Hong-Hua Li, Jing Chen, Li-Jun Wang, Chun-Ji Gao, Li Yu, Dai-Hong Liu |
Journal | Annals of hematology
(Ann Hematol)
Vol. 98
Issue 1
Pg. 185-193
(Jan 2019)
ISSN: 1432-0584 [Electronic] Germany |
PMID | 30143831
(Publication Type: Clinical Trial, Journal Article, Observational Study)
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Chemical References |
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Topics |
- Adolescent
- Adult
- Allografts
- Blood Donors
- Disease-Free Survival
- Female
- Graft vs Host Disease
(etiology, genetics, mortality, prevention & control)
- Humans
- Incidence
- Leukemia
(genetics, mortality, prevention & control)
- Lymphocyte Transfusion
- Lymphoma
(genetics, mortality, prevention & control)
- Male
- Middle Aged
- Mutation
- Neoplasm Proteins
(genetics)
- Peripheral Blood Stem Cell Transplantation
- Recurrence
- Retrospective Studies
- Survival Rate
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