Donor Selection for Allogeneic Stem Cell Transplantation In Elderly Patients with Advanced MDS: Younger Matched-Unrelated Donor or HLA-Identical Sibling ?

Blood ◽  
2010 ◽  
Vol 116 (21) ◽  
pp. 912-912
Author(s):  
Nicolaus Kröger ◽  
Tatjana Zabelina ◽  
Anja van Biezen ◽  
Axel R. Zander ◽  
Theo de Witte

Abstract Abstract 912 Allogeneic stem cell transplantation from related and unrelated donors is now a reasonable treatment option for elderly patients with advanced MDS. Retrospective studies have shown that donor age is an independent risk factor for outcome of allogeneic stem cell transplantation. By nature there is a strong correlation between patient's age and age of an HLA-identical sibling. Therefore we investigated whether a young matched unrelated donor should be preferred as donor to an elderly HLA-identical sibling in elderly MDS patients who underwent allogeneic stem cell transplantation. We extracted from the MDS-registry of the EBMT 871 patients who received allogeneic stem cell transplantation between 1986 and 2009 and fulfilled the following criterias: 1. patient's age > 50 years, 2. advanced MDS: RAEB, RAEB-t, CMML or sAML, 3. HLA-identical sibling or fully matched unrelated donor transplantation. From those 871 patients with a median age of 57 years (r., 50–73) 706 received stem cells from an HLA-identical sibling and 168 from a matched unrelated donor, either after standard conditioning (n = 387) or after reduced intensity conditioning (n = 481). After a median follow-up of 30 months, the estimated 3 years overall survival did not differ between patients who received stem cells from HLA-identical sibling or from matched unrelated donor (36 % vs. 34 %, p = 0.8). However, the median donor age was significantly higher for HLA-identical sibling than for MUD transplantation: 56 years (r: 35 – 81 y) vs. 34 years (r: 19 – 64) (p < 0.001). While age as continuous variable did not influence survival in HLA-identical sibling transplantation (HR: 1.002, p = 0.8), but did in MUD transplantation (HR: 1.03, p = 0.009), we performed 4 groups according to donor age: HLA-identical sibling transplantation with donor age > 50 years (n = 535) and donor age 30 – 50 years (n = 169) and matched unrelated transplantation with donor age < 30y (n = 60) and donor age > 30y (n = 107). These groups were well balanced according to disease-status, abnormal cytogenetics, and intensity of the conditioning regimen. The estimated 5 years OS for MUD (donorage < 30y) was 41 % and better than for HLA-identical (donor > 50y) with 31 % (p = 0.03) and HLA-identical (donor 30 – 50 y) with 33 % (p = 0.06), but worse than MUD (donor > 30 y) 24 % (p = 0.003). For overall survival, younger donors (< 30y) remained an independent factor for improved survival in a multivariate Cox model: HR: 0.66 (p = 0.03). Other factors influencing survival were disease status (sAML: HR: 1.31, p = 0.03), standard myeloablative conditioning (HR: 1.40, p = 0.002), and abnormal cytogenetic (HR: 1.26, p = 0.07). In comparison to HLA-identical sibling transplantation the hazard ratio for survival remained less than 1 for matched unrelated donors aged 20–35 years (HR: 0.66–0.99), but the hazard ration increased >1 if matched unrelated donor age becomes greater than 35 years. We conclude that for elderly patients (> 50 years) with advanced MDS who need allogeneic stem cell transplantation a younger unrelated donor should be preferred to an HLA-identical sibling donor. Disclosures: No relevant conflicts of interest to declare.

Blood ◽  
2021 ◽  
Vol 138 (Supplement 1) ◽  
pp. 2926-2926
Author(s):  
Wellington F Silva ◽  
Dalila Cysne ◽  
Mariana Nassif Kerbauy ◽  
Iago Colturato ◽  
Ana Carolina Arrais Maia ◽  
...  

Abstract Introduction: Allogeneic stem-cell transplantation (HSCT) remains a potentially curative approach for acute lymphoblastic leukemia (ALL), especially for high-risk patients and those with relapsed/refractory disease, although its efficacy is offset by a not negligible toxicity. Adult patients with ALL fare worse in developing countries with low data about the HSCT in this setting. In this study, we aim to describe outcomes and examine risk factors for overall survival (OS), disease-free survival (DFS), cumulative incidence of relapse (CIR), non-relapse mortality (NRM) and graft-versus-host disease (GVHD) after HSCT for ALL in Brazilian centers. Methods: This is a retrospective registry study. Patients with ALL or ambiguous lineage leukemia above 16 years who underwent a first HSCT in 5 Brazilian centers between January 2007 and December 2017 were included. Kaplan-Meier method and competing risk analysis were used. Multivariable analysis (MVA) was performed using Cox regression and the Akaike's information criteria was used for model selection. Cut-offs for continuous variables were calculated through "findcut" R function. Center effect was evaluated by using frailty model. Results: Overall, 275 patients were included with a median age of 31y (range, 16-65). Philadelphia chromosome was found in 35%. Baseline characteristics are summarized in Table 1. Matched sibling donor (MSD), matched unrelated donor (MUD), mismatched unrelated donor (MMUD), haploidentical donor and umbilical cord were reported in 53%, 19%, 9%, 19%, and 5%, respectively. Total body irradiation (TBI) was used in 67% of myeloablative HSCT. Median time to HSCT in CR1 was 7.8 months. Engraftment failure rate was 1.5%. Median follow-up time was 6.4 y. Cumulative incidence of acute grade II-IV and chronic GVHD were 54.2% and 26.2%, respectively. In MVA, the use of MUD (HR=2.3) and increased donor age (HR=1.02) were associated with GVHD. Five-year CIR was 28.1% (95% CI 22.9-33.6) and 5-y NRM was 34.1% (95% CI 28.4-39.8). At D+100, NRM incidence was 22.6%. Central nervous system involvement at the diagnosis (HR=2.2), and disease status (HR 1.8 for CR2+, and HR 7.9 for refractory) increased relapse incidence, whereas the use of peripheral blood graft (HR=0.51) and haploidentical donor (HR=0.4) significantly decreased relapse incidence. In MVA, NRM was increased by patient's age (HR=1.04), refractory status (HR=4.2), MUD (HR=3.8) and donor age (HR=1.02). Center effect was significantly associated with relapse and NRM. Five-year OS and DFS were 40.7% (95% CI 35.1-47.1) and 37.8% (95% CI-32.3-44.1), respectively (Figure 1). Patient's age, donor age and disease status were independently associated with OS and DFS (Table 2). When GVHD (as a time-dependent variable) was introduced in the MVA for OS and DFS, it was associated with decreased OS (HR 4.2, p&lt;0.001) but not with DFS. Pre-HSCT positivity of minimal residual disease (&gt;0.01%) was associated with worse DFS in univariate analysis (HR=1.47) in available cases. Conclusions: This is the largest series of ALL adults receiving HSCT from Brazil. While OS and DFS were similar to published data, NRM was higher. Patient's age and donor age outweighed donor type or graft source in our analysis. Interestingly, haploidentical HSCT related to lower CIR, whereas the use of MUD was associated with higher NRM and GVHD rates. These results impact on donor selection strategy in our country, aiming to timely offer HSCT for high-risk ALL patients in our setting. Figure 1 Figure 1. Disclosures No relevant conflicts of interest to declare.


Blood ◽  
2007 ◽  
Vol 110 (11) ◽  
pp. 1995-1995 ◽  
Author(s):  
Arnon Nagler ◽  
Myriam Labopin ◽  
Avichai Shimoni ◽  
Donald Bunjes ◽  
Pedro Pimentel ◽  
...  

Abstract Oral Busulfan (Bu) is the historical backbone of pre-allogeneic stem cell transplantation (alloSCT) conditioning regimen. However, oral Bu has an erratic and unpredictable absorption with wide inter and also intra-patient (pt) variability. In contrast, I.V. Busulfan (IV Bu) is with more predictable pharmacokinetics and favorable toxicity profile. In order to assess the impact of the use of IV Bu, the ALWP of the EBMT performed a survey in AML pts who received IV-Bu as part of their pre-alloSCT conditioning regimen. 36 EBMT centers participated in this study: 9 centers performed more than 10 transplants each. Overall, 271 alloSCT were analyzed. Age was 44 (range, 16–67) years. 146 were males (54%) and 125 (46%) were females. Disease status at alloSCT was CR1-53%, CR2-16%, primary refractory-13%, Rel1-12%, Rel2-5% and untreated-1%.77% of the pts were with intermediate, 15% with poor and 8% with good risk cytogenetics, respectively. Median WBC at diagnosis was 26×109/L. Conditioning consisted of IV Bu and cyclophosphamide (IV BuCy) in 52%, IV Bu and fludarabine (IV BuFlu) in 38% and various other IV Bu containing regimens in 10% of the pts, respectively. Overall, conditioning was myeloablative in 80% and reduced-intensity (RIC) in 20% of the alloSCT, respectively. Donors were: identical siblings-59%, matched unrelated-28%, mismatched unrelated-10%, mismatched family donors-2%, syngeneic 1%. 83% of the pts were transplanted with mobilized PBSC grafts while 17% received BM grafts. GVHD prophylaxis consisted of CSA and MTX in 85% of the transplants. With median follow up of 24 (range, 1–66) months, 53% of the pts are alive while 47% have died. Day 100 mortality was 7%. The incidence of veno-occlusive disease of the liver (VOD) was 10.4%. VOD was more frequent in pts that were transplanted from unrelated donors in comparison to those who were transplanted from sibling donors (18% vs. 5%, respectively). It was also more common after myeloablative conditioning than RIC (11.5% vs. 5.5%, respectively). Median age of pts with VOD was 42(17–65) years, not different than the age of the whole group, but they had more advanced disease (primary refrectory-35%, Rel2-30%). Day of onset of VOD was +10(range, 1–162). VOD was severe in only 15% of the pts and only 6 pts died of VOD. All together 30% of the pts with VOD are alive. Overall, alloSCT transplant related mortality (TRM) was 22±4% for pts transplanted at CR1 vs 33±8% for pts transplanted at advanced disease. Similarly, leukemia free survival (LFS) for pts transplanted at CR1 was 55±4% vs. 21+5% for pts transplanted in advanced disease. In summary, IV Bu based conditioning reduced the incidence and severity of VOD post alloSCT for AML as compared to published figures for historical controls. A randomized trial assessing VOD incidence and TRM using IV BuCy vs. IV BuFlu with 2 vs. 4 days of IV Bu, respectively may be indicated.


Blood ◽  
2009 ◽  
Vol 114 (22) ◽  
pp. 1201-1201
Author(s):  
Nicolaus Kröger ◽  
Tatjana Zabelina ◽  
Marion Heinzelmann ◽  
Georgia Schilling ◽  
Christine Wolschke ◽  
...  

Abstract Abstract 1201 Poster Board I-223 Introduction: Autologous stem cell transplantation followed by a dose-reduced conditioning and allogeneic stem cell transplantation from HLA-identical siblings has become a treatment option for patients with multiple myeloma. However, only a minority of the patients with multiple myeloma has an HLA-identical sibling and the experience using unrelated donor in this setting is limited. Patients and Methods: From 1997 to 2007, 73 patients (male:45; female:28) with multiple myeloma stage II/III and a median age of 49 years (r, 29-64) were included in a prospective trial to determine the efficacy of a tandem auto-allogeneic stem cell transplantation SCT) from HLA-identical sibling (n=24) or unrelated donors (n=45). Unrelated donor were either fully HLA matched (n=29) or had one mismatch (n=16).Deletion 13q14 could be analyses in 64 pts was found to be positive in 66% of the pts. Del13q14 was more present in patient with unrelated (n=42) than with related (n=22) donors. Stem cell source was PBSC (n=69) or bone marrow (n=4). Induction-chemotherapy consisted of a median of 4 cycles anthracycline-based therapy in 60 pts, or of thalidomide- (n=3) or bortezomib- (n=8) based regimen. 6 pts did not respond to induction therapy and received salvage chemotherapy before autologous SCT. Conditioning prior auto SCT consisted of melphalan 200mg/m2. After a median of 110 days (range 39-228) patients received a reduced intensity regimen with melphalan (140 mg/m2)/fludarabine regimen followed by allogeneic SCT from related (n=24) or unrelated (n=45) donors. GvHD prophylaxis consisted of anti-lymphocyte globulin (ATG-Fresenius®), cyclopsorin A and short course of MTX. Results: No primary or secondary graft failure was observed and leukocyte engraftment was achieved after a median of 15 days (range, 9-27), respectively. Acute graft-versus-host disease (GvHD) grade II to IV occurred in 38% and chronic GvHD in 22% of the patients. Limited GvHD was seen in 16 % and extensive GvHD was seen in 6 % of the patients. There was no difference regarding incidence of GvHD between HLA-identical sibling and unrelated donors. Overall response rate at day 100 was 94% including 55% complete remission (CR) and did not differ between related and unrelated SCT. Cumulative incidence (CI) of non-relapse mortality at one year was 20% (95% CI:11-29%) and did not differ between MUD and MRD (21 vs 17%, p 0.35). The cumulative incidence of relapse at 3 and 5 years was 30% (95% CI:19-41%) and 42% (95% CI: 29-55%), respectively with no difference between related and unrelated SCT at 5 years: 36 vs 44%(p= 0.6). The only significant factor for higher relapse incidence at 5 years was the presence of del13q14 (60 vs 20%, p= 0.007). After a median follow up of 40 months (r., 26-100), the estimated 5-year progression-free (PFS) and overall survival (OS) rates were 31% (95%CI: 19-43%) and 54% (95% CI: 42-64%), respectively, with no difference between related and unrelated SCT. Due to the higher relapse incidence only presence of del13q resulted in a significant worse 5- year OS and DFS (45 vs 77%, p=0.02 and 18 vs 57%, p=0.04). Conclusions: Unrelated donors as stem cell source for auto-allogeneic tandem stem cell transplantation for newly diagnosed myeloma patients resulted in similar NRM, relapse-incidence, DFS and OS than HLA-identical sibling transplantation and can therefore be used as alternative stem cell source. Outcome after transplantation is better for patients lacking del 13q14. Disclosures: No relevant conflicts of interest to declare.


Blood ◽  
2009 ◽  
Vol 114 (22) ◽  
pp. 3387-3387 ◽  
Author(s):  
Nicolaus Kröger ◽  
Tatjana Zabelina ◽  
Christine Wolschke ◽  
Heinrich Lellek ◽  
Thomas Stübig ◽  
...  

Abstract Abstract 3387 Poster Board III-275 <>Introduction: Allogeneic stem cell transplantation after a dose-reduced conditioning has become a reasonable treatment option for elderly patients with MDS/sAML. For patients with high number of blasts prior transplantation, the risk of relapse is considerably. To reduce the risk of relapse after dose-reduced allograft we performed a study using an anthracycline based induction chemotherapy (amsacrine, cytosine-arabinoside, fludarabine) followed immediately by a reduced intensity conditioning therapy consisting of busulfan (8mg/kg). Patients and Methods: Between November 2005 and November 2008, 49 patients with MDS (n = 24), CMML (n = 8) and sAML (n = 17) and a median age of 61 years (r: 26 – 73) and a median number of 13% blasts were included. Stem cell source were unrelated (n = 43) or related donor (n = 6). Results: No graft failure was observed and the median time to leukocyte engraftment (> 1.0 × 109 /l) was only 10 days (r: 7 – 32). The incidence of acute graft-versus-host disease grade II to IV was 39 % and of grade III / IV was 14 %. Chronic GvHD was noted in 57 % of the patients, which was limited in 35 % and extensive in 32 % of the patients. After a median follow-up of 15 months (r: 3 – 35) the two-years estimated disease-free and overall survival was 49 % (95 % CI 33 – 65 %) and 54 % (95 % CI 39 – 69 %), respectively. The 1 year cumulative incidence of treatment-related mortality was 29 % (95 % CI 15 – 43 %). The 2 year cumulative incidence of relapse was 18 % (95 % CI 6 – 30 %). Patients with fully matched related or unrelated donor had a better survival than patients transplanted from mismatched donor (69 % vs. 37 %; p=0.06). Conclusions: A sequential approach using anthracycline based induction chemotherapy followed immediately by a busulfan based reduced conditioning regimen and allogeneic stem cell transplantation from related and unrelated donors resulted in a fast engraftment and a relative low risk of relapse in elderly patients with advanced MDS or sAML. To lower the therapy related mortality a careful donor selection is mandatory. Disclosures: No relevant conflicts of interest to declare.


Blood ◽  
2009 ◽  
Vol 114 (22) ◽  
pp. 2308-2308
Author(s):  
Nicolaus Kröger ◽  
Avichai Shimoni ◽  
Georgia Schilling ◽  
Rainer Schwerdtfeger ◽  
Martin Bornhäuser ◽  
...  

Abstract Abstract 2308 Poster Board II-285 Introduction: Dose-reduced conditioning followed by allogeneic stem cell transplantation has become a treatment option for patients with multiple myeloma. However, the experience using unrelated donor is limited. Patients and Methods: From 2002 to 2007, 49 myeloma patients with relapse to a prior autologous SCT were included in a prospective multicenter trial to determine the efficacy of a reduced melphalan (140 mg/m2)/fludarabine regimen followed by allogeneic SCT from unrelated donors. GvHD prophylaxis consisted of anti-lymphocyte globulin (ATG-Fresenius®), cyclopsorin A and short course of MTX. Results: No primary or secondary graft failure was observed and all patients showed leukocyte and platelet engraftment after a median of 15 and 19 days, respectively. Acute graft-versus-host disease (GvHD) grade II to IV occurred in 25% and chronic GvHD in 35% of the patients. Limited GvHD was seen in 29 % and extensive GvHD was seen in 6 % of the patients. Overall response rate at day 100 was 95% including 46% complete remission (CR). Cumulative incidence (CI) of non-relapse mortality at one year was 25% (95% CI: 13-37%) and significantly lower for HLA matched compared to mismatched SCT (10% vs. 53%, p=0.001). During follow-up 22 patients experienced relapse (54 %) resulting in a cumulative incidence of relapse at 1, and 3 years of 27% (95% CI: 14-40%) and 55% (95% CI: 40-70%), respectively. The median time to relapse was 318 days (r: 56 – 861). After a median follow up of 43 months, the estimated 5-year progression-free (PFS) and overall survival (OS) rates were 20% and 26%, respectively and were significantly better for matched in CR at day 100 (41 vs. 7%, p=0.04 and 56 vs. 16%, p=0.02). Conclusions: Allogeneic stem cell transplantation from unrelated donors after a reduced intensity regimen is feasible, but an optimal donor selection is mandatory for a low non-relapse mortality. The high relapse incidence remains a major concern should be improved by including posttransplant strategies to upgrade remission status. Disclosures: No relevant conflicts of interest to declare.


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