Hematopoietic stem cell transplantation for adults with relapsed acute promyelocytic leukemia in second complete remission
Bone marrow transplantation. 2020
We retrospectively compared outcomes of a large series of adult patients with APL in CR2 receiving alloHSCT (n?=?228) or autoHSCT (n?=?341) reported to the European Society for Blood and Marrow Transplantation from January 2004 to December 2018. The 2-year cumulative incidence of non-relapse mortality was significantly higher for alloHSCT 17.3% (95% CI 12.5-22.8) compared with autoHSCT 2.7% (95% CI 1.2-5) (p?=?0.001), while differences in relapse rate were not significant (28% versus 22.9%; p?=?0.28). Leukemia-free survival (LFS) and overall survival (OS) favored autoHSCT with 74.5% (95% CI 69-79.2) and 82.4% (95% CI 77.3-86.5) compared with alloHSCT with 54.7% (95% CI 47.5-61.3) (p?=?0.001) and 64.3% (95% CI 57.2-70.6), respectively (p?=?0.001 and p?=?0.001). Multivariable analysis showed significantly worse LFS after alloHSCT (HR 0.49; 95% CI 0.37-0.67; p?0.0001), older age (p?=?0.001), and shorter time from diagnosis to transplant (p?=?0.00015). Similar results were obtained for OS. The study shows that autoHSCT resulted in better survival outcomes (LFS and OS) for APL in CR2. These results were mainly due to reduced NRM in the autoHSCT as compared to alloHSCT.
Myeloablative conditioning for allo-HSCT in pediatric ALL: FTBI or chemotherapy?-A multicenter EBMT-PDWP study
Bone marrow transplantation. 2020
Although most children with acute lymphoblastic leukemia (ALL) receive fractionated total body irradiation (FTBI) as myeloablative conditioning (MAC) for allogeneic hematopoietic stem cell transplantation (allo-HSCT), it is an important matter of debate if chemotherapy can effectively replace FTBI. To compare outcomes after FTBI versus chemotherapy-based conditioning (CC), we performed a retrospective EBMT registry study. Children aged 2-18 years after MAC for first allo-HSCT of bone marrow (BM) or peripheral blood stem cells (PBSC) from matched-related (MRD) or unrelated donors (UD) in first (CR1) or second remission (CR2) between 2000 and 2012 were included. Propensity score weighting was used to control pretreatment imbalances of the observed variables. 3.054 patients were analyzed. CR1 (1.498): median follow-up (FU) after FTBI (1.285) and CC (213) was 6.8 and 6.1 years. Survivals were not significantly different. CR2 (1.556): median FU after FTBI (1.345) and CC (211) was 6.2 years. Outcomes after FTBI were superior as compared with CC with regard to overall survival (OS), leukemia-free survival (LFS), relapse incidence (RI), and nonrelapse mortality (NRM). However, we must emphasize the preliminary character of the results of this retrospective "real-world-practice" study. These findings will be prospectively assessed in the ALL SCTped 2012 FORUM trial.
Association of Macroeconomic Factors With Nonrelapse Mortality After Allogeneic Hematopoietic Cell Transplantation for Adults With Acute Lymphoblastic Leukemia: An Analysis From the Acute Leukemia Working Party of the EBMT
PURPOSE From a global perspective, the rates of allogeneic hematopoietic cell transplantation (alloHCT) are closely related to the economic status of a country. However, a potential association with outcome has not yet been documented. The goal of this study was to evaluate effects of health care expenditure (HCE), Human Development Index (HDI), team density, and center experience on nonrelapse mortality (NRM) after HLA-matched sibling alloHCT for adults with acute lymphoblastic leukemia (ALL). PATIENTS AND METHODS A total of 983 patients treated with myeloablative alloHCT between 2004 and 2008 in 24 European countries were included. RESULTS In a univariate analysis, the probability of day 100 NRM was increased for countries with lower current HCE (8% vs. 3%; p = .06), countries with lower HDI (8% vs. 3%; p = .02), and centers with less experience (8% vs. 5%; p = .04). In addition, the overall NRM was increased for countries with lower current HCE (21% vs. 17%; p = .09) and HDI (21% vs. 16%; p = .03) and for centers with lower activity (21% vs. 16%; p = .07). In a multivariate analysis, the strongest predictive model for day 100 NRM included current HCE greater than the median (hazard ratio [HR], 0.39; p = .002). The overall NRM was mostly predicted by HDI greater than the median (HR, 0.65; p = .01). Both lower current HCE and HDI were associated with decreased probability of overall survival. CONCLUSION Both macroeconomic factors and the socioeconomic status of a country strongly influence NRM after alloHCT for adults with ALL. Our findings should be considered when clinical studies in the field of alloHCT are interpreted. Copyright ©AlphaMed Press.
Twenty Years of Autologous Stem Cell Transplantation in Diffuse Large B-Cell Lymphoma: A Single Portuguese Center Experience
Acta Medica Portuguesa. 2016;29(3):205-9
INTRODUCTION Diffuse large B-cell lymphoma can be cured in 60% - 70% of patients. Autologous stem cell transplantation is the standard treatment for relapsed disease. This high-intensity treatment after first complete remission in patients with high International Prognostic Index remains controversial and was performed in our department during some years. MATERIAL AND METHODS Retrospective study, review of clinical records. RESULTS This study evaluates the outcome of 113 patients transplanted between 1992 and 2012. Considering status before transplantation patients were divided in groups: a) first complete remission after 1 line of chemotherapy (n = 64); b) first complete remission after > two chemotherapy lines (n = 15); c) second complete remission (n = 15); d) more advanced diseased (n = 19). Chemotherapy used in first line therapy was mainly R-CHOP (n = 71) and CHOP (n = 28). The median follow-up of patients still alive was 34 months (1 - 221). At five years, overall survival was 73% (+/- 5) and disease free survival was 75% (+/- 5). CONCLUSION Conventional chemotherapy followed by autologous stem cell transplant is a safe and efficient option for selected patients. In our series 70% high-risk patients were free from disease with this strategy.