Dose-Reduced Conditioning Followed by Allogeneic Stem Cell Transplantation in Patients with Myelofibrosis. Results from a Multicenter Prospective Trial of the Chronic Leukemia Working Party of the European Group for Blood and Marrow Transplantation (EBMT).

Blood ◽  
2007 ◽  
Vol 110 (11) ◽  
pp. 683-683 ◽  
Author(s):  
Nicolaus Kroeger ◽  
Ernst Holler ◽  
Guido Kobbe ◽  
Martin Bornhaeuser ◽  
Rainer Schwerdtfeger ◽  
...  
Keyword(s):  
Stem Cell ◽  
High Risk ◽  
Chronic Gvhd ◽  
Prospective Trial ◽  
Conditioning Regimen ◽  
Working Party ◽  
Unrelated Donor ◽  
Jak2 Mutation ◽  
Cytogenetic Abnormalities ◽  
Excellent Outcome

Abstract The major limitation of allogeneic stem cell transplantatiopn (SCT) in patients (pts) with myelofibrosis is the high treatment related mortality. We performed a prospective multicenter trial of a dose-reduced conditioning regimen, consisting of busulfan (10 mg/kg orally or 8mg/kg i.v), fludarabine (180 mg/m2) and anti-thymocyte globulin (ATG Fresenius: 30–60 mg/kg) followed by allogeneic SCT in pts with myelofibrosis. From 2002 to 2006, 104 pts with a median age of 55 years (range: 32–68) andlow risk with constitutional symptoms (18%) or intermediate risk (n= 58%) and high risk (n=19%) were included. Cytogenetic abnormalities and JAK2 mutation were noted in 22% and 48%, respectively. Bone marrow histology showed advanced fibrosis (MF 2 and 3) in all pts. All but 3 pts received peripheral blood stem cells as graft source either from related (n=33) or unrelated donor (n=71). All but one (1%) pts showed leukocyte and platelet engraftment after a median of 18 and 21 days, respectively. The median duration of leukocyte aplasia was 9 days (range: 3–21). Acute GvHD grade II to IV occurred in 19% and severe aGvHD III/IV in 7%, while chronic GvHD was seen in 32% of the pts. Non-relapse mortality at 1 year was 19% (95% CI: 11–27%) and significantly lower for pts younger than 50 years of age (0% vs 27%, p=0.004) and for pts with low risk vs intermediate/high risk disease (0% vs 27%, p= 0.02). The cumulative incidence of relapse at 3 years was 29% (95%CI: 15–43%). The 3 year overall (OS) and event-free survival (EFS) was 70% (95% CI 60–80%) and 55% (95% CI 42–68%). Significant factors for improved 3 year OS and EFS were age less than 50 years (92% vs 62%, p=0.003 and 79% vs 46%, p= 0,004) and low vs intermediate/high risk (100% vs 62%, p=0.01 and 72% vs 48%, p= 0.02), while no impact on survival was seen for cytogenetic abnormalities, JAK2 mutation status and donor (related vs unrelated). These prospective multicenter study show excellent outcome of an busulafan/fludarabine based reduced conditioning regimen followed by allogeneic SCT in pts with myelofibrosis.

scholarly journals Busulfan, Cyclophosphamide and Melphalan As Conditioning Regimen for Pediatric Patients with AML in 1st or 2nd CR: A Retrospective Analysis from the AIEOP HSCT Registry

Blood ◽  
2018 ◽  
Vol 132 (Supplement 1) ◽  
pp. 2106-2106
Author(s):  
Annalisa Ruggeri ◽  
Marco Zecca ◽  
Franca Fagioli ◽  
Adriana Balduzzi ◽  
Mattia Algeri ◽  
...  
Keyword(s):  
Stem Cell ◽  
High Risk ◽  
Board Of Directors ◽  
Pediatric Patients ◽  
Chronic Gvhd ◽  
Conditioning Regimen ◽  
Disease Status ◽  
Unrelated Donor ◽  
Advisory Committees ◽  
Donor Type

Abstract Allogeneic stem cell transplantation (HSCT) is largely adopted as post-remissional therapy in children with acute myeloid leukemia (AML) in first complete remission (CR1) but with high-risk characteristics (including high-risk cytogenetics or high levels of minimal residual disease at the end of induction therapy) or to rescue patients reaching CR2 after a previous relapse. Busulfan-based regimens represent the standard of care for these patients in association with alkylating agents. One of the most frequent drugs combination used in Europe in pediatric patients is Busulfan, Cyclophosphamide and Melphan (BuCyMel), which provide a potent anti-leukemic effect, despite remarkable extramedullary toxicities, especially in adolescents. We aimed at analyzing the results of children with AML receiving BuCyMel and reported to the AIEOP registry from 2008 to 2015. A total of 182 patients were reported by 15 transplant centers. Median age at HSCT was 9 years (range 0.3-18); 100 patients (55%) were male. Disease status at HSCT was CR1 in 159 (88%) patients and CR2 in the remaining 23 (12%). All patients received the same myeloablative conditioning regimen with BuCyMel and GVHD prophylaxis was mainly based on calcineurin inhibitors, with the addition of methotrexate in unrelated donors recipients. In vivo T-cell depletion/modulation with ATG was used in 90 cases (49.5%). In almost all cases, pharmacokinetics monitoring of Busulfan was performed, with the drug dosage adjusted according to the systemic exposure evaluated after the first dose. Donor type was an HLA-matched family donor (MFD) in 82 (45%) patients and an unrelated donor (UD) in 100 (55%); 154 (85%) patients received bone marrow (BM) as stem cell source, while the remaining patients (15%) were transplanted with peripheral blood stem cells (PBSCs). Median follow up for surviving patients was 39 months (range 1-111). All patients achieved neutrophil engraftment. The cumulative incidence (CI) of grade II-IV and grade III-IV aGVHD was 35% (95%CI 28-42) and 11% (95% CI 7-16), respectively. The CI of aGVHD was not different according to the type of donor, being 37% (95%CI 28-50) and 32% (95%CI 24-46) in MFD and UD, respectively (p=0.38). The CI of chronic GVHD at 3 years was 17% (95%CI 12-24), while that of extensive cGVHD was 6% (95%CI 3-10). No difference was found in the CI of CGVHD according to the donor employed (MFD 15% and UD 19%, p=0.49). Overall, the CI of relapse and non-relapse mortality (NRM) at 3 years was 18% (95%CI 12-26) and 15% (95%CI 10-22), respectively. The CI of relapse and NRM was significantly different according to age at HSCT (using 12 years as cut-off): (Relapse age<12y: 21% (95%CI 15-32) and age>12y: 11% (95%CI 3-32), (p=0.003); NRM age<12y: 10% (95%CI 5-20) and age>12y: 24% (95%CI 15-37), (p=0.005). According to disease status at HSCT the CI of relapse and NRM were as follows: Relapse: CR1: 18% (95%CI 18-26), CR2 15% (95%CI 5-41) p=0.90) and NRM CR1: 14% (95%CI 9-21), CR2 19% (95%CI 8-46) p=0.38). Also, there was no difference in relapse and NRM by donor type, relapse: MFD 16% (95%CI 9-28), UD 19% (95%CI 11-32) p=0.38) NRM: MFD 19% (95%CI 11-34), UD 11% (95%CI 7-20) p=0.62). Causes of deaths were disease recurrence (39%), infections (27%), and GVHD (12%). Three- years overall survival (OS) and disease-free survival (DFS) were 74% (95%CI 67-81) and 68% (95%CI 60-70). DFS was 70% (95%CI 60-77) and 67% (95%CI 47-87) for patients transplanted in CR1 and CR2 respectively, (p=0.39); and was 70% (95%CI 59-81) and 65% (95%CI 53-78), p=0.77, for UD and MFD HSCT recipients, respectively. In conclusion, our results confirm the efficacy of BuCyMel in preventing relapse in a large series of pediatric patients affected by AML in CR1 and CR2. Adolescents represent a population of more fragile patients at risk of developing transplant-related fatalities. Optimization of toxicity profile and supportive care could further improve outcomes. Prospective randomized clinical trials are warranted to assess the best conditioning regimen for children and adolescents with AML. Disclosures Zecca: Chimerix: Honoraria. Locatelli:Bellicum: Consultancy, Membership on an entity's Board of Directors or advisory committees; bluebird bio: Consultancy; Novartis: Consultancy, Membership on an entity's Board of Directors or advisory committees; Miltenyi: Honoraria; Amgen: Honoraria, Membership on an entity's Board of Directors or advisory committees.

Monosomal Karyotype Predicts Poor Outcome for MDS/sAML Patients with Chromosome 7 Abnormalities After Allogeneic Stem Cell Transplantation for MDS/sAML. A Study of the MDS Subcommittee of the Chronic Leukemia Working Party of the European Group for Blood and Marrow Transplantation (EBMT).

Blood ◽  
2009 ◽  
Vol 114 (22) ◽  
pp. 293-293 ◽  
Author(s):  
Michel Van Gelder ◽  
Johannes Schetelig ◽  
Liisa Volin ◽  
Johan Maertens ◽  
Gerard Socié ◽  
...  
Keyword(s):  
Stem Cells ◽  
Stem Cell ◽  
High Risk ◽  
Conditioning Regimen ◽  
Working Party ◽  
Chromosome 7 ◽  
Term Survival ◽  
Cytogenetic Abnormalities ◽  
Poor Outcome ◽  
Monosomal Karyotype

Abstract Abstract 293 Background. High-risk MDS/sAML patients have a poor prognosis with conventional therapies. One constant factor predisposing for high risk is the presence of a chromosome 7 abnormality. It is common practice that patients with a chromosome 7 abnormality and other factors that classify them as high-risk are offered allogeneic SCT (alloSCT) as it is believed that this treatment has curative potential. Data on the effect of this approach in these patients are scarce. Methods. The EBMT database was searched for MDS/sAML patients having any chromosome 7 abnormalities and were treated with alloSCT. 278 patients who underwent alloSCT between 1981 and November 2006 were included. Stem cells from related donors were transplanted in 192 patients (177 HLA-identical) while 85 received unrelated grafts. Bone marrow was used as stem cell source in 148 patients while 126 received blood stem cells. Standard conditioning was applied in 222 patients. Sixty-three patients fulfilled the criterion for having complex cytogenetic abnormalities. A monosomal karyotype (MK), defined as at least one monosomy and at least one other chromosomal abnormality (Breems DA et al., JCO 2008;26:4791–7), was present in 63 patients, of whom 23 did not have complex cytogenetic abnormalities. Results. Median follow-up (FU) of patients alive at last FU was 5 years (range, 0–18 years). Estimate 5–year overall (OS), and relapse-free (RFS) survival was 28±5.5% (see figure) and 26±5.5% respectively. The relapse rate at 3, 12 and 60 months was 9±3%, 29±5% and 39±6% respectively. Non-relapse mortality (NRM) at 3, 12 and 60 months was 21±5%, 36±6% and 40±6% respectively. In multivariate models including age, MK, complex karyotype, blasts at alloSCT, donor type, sex match, conditioning regimen, T-cell depletion and year of alloSCT, a MK highly significantly predicted for extremely poor outcome: the adjusted hazard ratios of MK were for OS 2.4 (95% CI, 1.6 to 3.6), for RFS 2.4 (95% CI, 1.7 to 3.9) and for relapse 3.2 (95% CI, 1.8 to 5.7) (p<0.001 for each endpoint). Five-year OS and RFS for patients with a MK were 0% and 0% compared to 37±7% and 34±7% for patients without MK (p<0.001 for both log rank tests) respectively (see figure). Five-year incidences of relapse and NRM of patients with MK were 52±13% and 48±13% compared to 33±7% and 37±7% for patients without MK (gray tests, p=0.002 and p=0.1). Conclusion. This large study of alloSCT for patients with MDS/sAML and any chromosome 7 abnormality shows that long-term survival can be achieved in about 37% of patients without a MK. In contrast, patients with a MK do extremely poor (5-year OS 0%) with standard alloSCT approaches; for these patients new approaches must be explored. Disclosures: Schetelig: Bayer Schering: Research Funding.

Influence of Stem Cell Source On GvH and NRM: Comparison of 10/10 HLA-Matched Unrelated Donor (MUD) with 9/10 HLA-Mismatched Unrelated Donor (MMUD) and Unrelated Cord Blood (UCB) Transplants.

Blood ◽  
2012 ◽  
Vol 120 (21) ◽  
pp. 3135-3135
Author(s):  
Clémence Granier ◽  
Emeline Masson ◽  
Lucie Biard ◽  
Raphael Porcher ◽  
Regis Peffault de la Tour ◽  
...  
Keyword(s):  
Stem Cell ◽  
High Risk ◽  
Chronic Gvhd ◽  
Conditioning Regimen ◽  
Hla Typing ◽  
Unrelated Donor ◽  
Hematopoietic Stem ◽  
Stem Cell Source ◽  
Significant Difference ◽  
Cell Source

Abstract Abstract 3135 Background: When an HLA-matched donor is not available for allogeneic Hematopoietic Stem Cell Transplantation (HSCT), the use of an alternative HLA-mismatched stem cell source may be considered. In Europe, HLA compatibility for HSCT is calculated for 10 alleles (HLA-A, -B, -C, -DRB1, -DQB1). The aim of this study was to retrospectively compare outcomes after transplantation from 10/10 HLA-MUD, 9/10 HLA-MMUD and UCB performed at the Hospital Saint Louis (Paris, Fr). Methods: Patients receiving a first allogeneic transplantation from a 10/10, 9/10 UD or UCB from 2000 to 2011 were included. High resolution HLA typing was performed by PCR SSO and SSP for HLA loci: A, B, C, DRB1 and DQB1. The following variables were studied as risk factors for transplant outcomes: disease, disease risk (standard/high risk), age at transplant, gender, donor/recipient sex-matching, ABO matching, donor/recipient CMV status, conditioning regimen, and use of anti-thymoglobulin (ATG). Results: 355 consecutive patients with hematologic malignancies were analyzed. One hundred and ninety-six were transplanted with MUD, 84 with MMUD (mismatches for HLA-A: 16%, -B: 16%, -C: 39%, -DRB1: 8%, -DQB1: 21%) and 75 with UCB (52% with single and 48% with two UCB unit; 87% of all UCB transplants were 4–6/6 HLA-matched). Median patient age was 31 (range: 5–55). Patient characteristics differed between the 3 groups: (i) median age at transplant: 36 in MUD, 31 in MMUD, 22 in UCB (p<0.0001), (ii) high risk disease: 37%, 51%, 68% (p<0.0001), (iii) CMV negative donor/positive recipient: 31%, 36%, 60% (p<0.0001), (iv) use of ATG: 37%, 64%, 55% (p<0.0001). Cumulative incidences of grade II-IV and grade III-IV acute GvHD disease (aGvHD) were 61% (66% for MUD, 60% for MMUD and 48% for UCB) and 17% (17%, 24% and 15%), respectively. Three-year cumulative incidence of chronic GvHD (cGvHD) was 46% (51% for MUD, 49% for MMUD and 29% for UCB). Three-year NRM was 34% (28% for MUD, 31% for MMUD and 51% for UCB). Graft failure occurred in 15% of UCB patient, 8% in MMUD group and 3% in MUD group (significant difference between UCB and MUD: OR=5.44, 95%CI 1.93–15.3, p=0.001). Multivariate analysis is summarized in table 1. It showed that MMUD tented to have a higher incidence of aGvHD III-IV than MUD and UCB. UCB had a lower incidence of cGvHD than MMUD. No significant effect of HSCT source on NRM was demonstrated. Conclusion: Compared to MMUD, UCB-HSCT induces less cGvHD and non significantly increased NRM. Compared to MUD, MMUD and UCB-HSCT did not result in a clear increase of NRM. UCB and 9/10 HLA-MMUD are both suitable stem cell sources for patients who cannot benefit from 10/10 HLA-MUD transplant. Disclosures: No relevant conflicts of interest to declare.

Thiotepa-Based Conditioning for Allogeneic Stem Cell Transplantation (allo-HSCT) in Acute Lymphoblastic Leukaemia (ALL) - a Survey from the Acute Leukemia Working Party (ALWP) of the European Society for Blood and Marrow Transplantation (EBMT)

Blood ◽  
2015 ◽  
Vol 126 (23) ◽  
pp. 4316-4316
Author(s):  
Sandra Eder ◽  
Eric Beohou ◽  
Myriam Labopin ◽  
Jaime Sanz ◽  
Jürgen Finke ◽  
...  
Keyword(s):  
Overall Survival ◽  
Stem Cell ◽  
Chronic Gvhd ◽  
Conditioning Regimen ◽  
Working Party ◽  
Disease Status ◽  
P Value ◽  
Unrelated Donor ◽  
Free Survival ◽  
One Year

Abstract Background Thiotepa is an alkylating compound with an effective antineoplastic activity that was used in the past mainly for solid tumors and lymphoma, partially due to its ability to penetrate the blood-brain-barrier. Moreover, beside its myelosupressive activities, thiotepa has immunosuppressive properties making it an attractive agent to be used in the conditioning pre-transplantation. In the current retrospective registry study, we analyzed thiotepa-based conditioning regimen for allo-HSCT in adult patients with ALL using the EBMT ALWP database. Methods Inclusion criteria were: adults with de novo or secondary ALL who underwent first allo-HSCT between 2000 and July 2014 with a thiotepa-based regimen. Donors were either HLA-matched siblings or matched unrelated donors. Haploidentical and cord blood transplantations were excluded as well as patients who received a previous allo-HSCT. Results A total of 323 patients with adult ALL were identified. Median age was 43 years (range, 18 - 76); 59% were males and 41% females. Disease status at allo-HSCT was CR1 in 48.9%, CR2 in 21.7%, CR3 in 6.2% and 23.2% of the patients had an active disease at time of transplant. Transplantation was performed from a HLA-matched sibling (49.8%) or a matched unrelated donor (51.2%). Sixty-five per cent of patients received a myeloablative and 35% a reduced-intensity conditioning regimen, respectively. Stem cell source was peripheral blood stem cells in 84% of the transplants, while 16% received bone marrow grafts. Neutrophil engraftment (defined as >0.5x109/L) was 98% with a median day of 15 (range, 2 - 41). Platelets engraftment (defined as >20x109/L) was 92% with a median day of 14 (range, 7 - 98). Incidence of acute GvHD (Grade> II) was 26.6%, while chronic GvHD occurred in 35.9% at one year (24.6% with extensive disease). With a median follow-up of 16.8 months, the non-relapse mortality was 12.4% and 25.3% at 100 days and one year, respectively. Relapse incidence at 1 year was 33.3%.The one-year leukemia-free survival and overall survival incidences were 57% and 66%. Table 1 shows the outcome according to donor and disease status at time of allo-HSCT. When looking for conditioning regimen more precisely, comparing thiotepa / busulfan ± melphalan (n=213) to thiotepa / other (n=110), higher relapse incidence at one year (34.9% vs 30.3%, p=0.016) and lower leukemia-free survival (38.8% vs 45.9%, p=0.0203), respectively were observed, without difference in non-relapse mortality (23.8% vs 26.3 %, n.s.) and overall-survival (59.6% vs 51.1%, p=0.109). Conclusion This large survey suggests that TTP-based conditioning therapy in adult ALL is feasible and effective, with main outcomes being comparable to literature published results achieved with other regimens. Table 1. Donor LFS,1 year p-value OS,1 year p-value Relapse,100 days Relapse,1 year p-value NRM,100 days NRM,1 year p-value HLA-matchedsibling 49% 0.0262 62% 0.0133 13.1% 31.9% 0.4641 8.7% 18.3% 0.0042 matchedunrelateddonor 33% 46% 15.2% 34.7% 16.2% 32.1% Table 2. Disease status at allo-HSCT LFS,1 year p-value OS,1 year p-value Relapse,100 days Relapse,1 year p-value NRM,100 days NRM,1 year p-value CR1 49% <0.0001 68% <0.0001 6.4% 27.5% 0.0028 7.6% 22.6% 0.1859 CR2+ 33% 40% 21.5% 39% 17% 27.8% Disclosures Mohty: Riemser: Honoraria, Research Funding.

Overcoming the Negative Impact of Age Using Fludarabine-Based Conditioning Regimens for HLA-Identical Sibling HSCT in Patients with Severe Aplastic Anemia (SAA): A Study from the EBMT-SAA Working Party.

Blood ◽  
2006 ◽  
Vol 108 (11) ◽  
pp. 3007-3007 ◽  
Author(s):  
Sebastien Maury ◽  
Paolo Anderlini ◽  
Romaine Viollier ◽  
Rosi Onetto ◽  
Frederique Garban ◽  
...  
Keyword(s):  
Low Dose ◽  
Negative Impact ◽  
Chronic Gvhd ◽  
Prospective Trial ◽  
Conditioning Regimen ◽  
Disease Free Survival ◽  
Working Party ◽  
Unrelated Donor ◽  
Probability Of Survival ◽  
Conditioning Regimens

Abstract Background: Survival after HSCT from HLA-identical siblings is inferior in SAA patients 30 years or older as compared with younger patients. In order to improve survival in patients >30 years, the use of a less toxic regimen including reduced doses of chemotherapy in combination with ATG, while adding fludarabine, might be an option to explore with the aim to reduce transplant-related mortality. In the unrelated donor setting, we previously showed that a regimen combining fludarabine, ATG, and low-dose cyclophosphamide (CY) provided encouraging disease-free survival in 38 patients (Bacigalupo et al, Bone Marrow Transplant 2005). Patients and Method: In order to evaluate the toxicity profile, engraftment potential, and efficiency of HLA-identical HSCT using such fludarabine-based conditioning regimen, we conducted this study from the EBMT-SAA database, focussing on patients older than 30 years. From November 1996 to February 2005, 45 patients from 27 centres (median age 49 years, range 31–66 years) received HSCT for idiopathic SAA (n=40), or PNH clone-associated SAA (n=5). HSCT was performed either as first-line treatment (n=29), or after failure of ATG/ciclosporine (CsA) (n=10), or failure of a first allogeneic HSCT (n=6). The median interval between diagnosis and HSCT was of 10 months (range 1–350). Various fludarabine-based conditioning regimens were used (see Table), incorporating ATG +/− chemotherapy in the majority of patients (40 out of 45). We analyzed separately the outcome of patients receiving the combination of fludarabine, ATG and low-dose (<200 mg/kg) CY (n=27) from those receiving other fludarabine-based regimens (n=18). Marrow (n=21) or PBSC (n=24) grafts were unmanipulated. GVHD prophylaxis consisted of CsA/methotrexate (n=25), CsA alone (n=11), nothing (n=6), or other (n=3). Results: All patients alive at d21 (n=41) engrafted with a neutrophil (ANC>500/μL) recovery occurring at a median of 16 days after transplant. Acute GVHD occurred in 16 patients with a maximum grade II in 11 patients and grade III-IV in 5. Among 33 evaluable patients, 11 developed chronic GVHD (extensive in 6). With a median follow-up of 21 months, the Kaplan-Meier overall probability of survival was of 54% ± 1%. Infections (n=5) and multi-organ failure (n=3) were the primary causes of death. In univariate (UV) and multivariate (MV) analyses incorporating patient- and transplant-related variables, the only factor significantly associated with better outcome was the type of conditioning, the fludarabine/ATG/low-dose CY combination providing a 77% ± 1% probability of survival versus 24% ± 1% with other regimens (p=.02 in UV and MV analyses). Conclusion: Reduced intensity fludarabine-based conditioning regimen is feasible in SAA patients over the age of 30 and produces encouraging survival, especially when using a fludarabine, ATG and low-dose CY combination. A prospective trial is being conducted within the EBMT-SAAWP using this conditioning regimen.

Allogeneic hematopoietic stem cell transplantation in thalassemia major: results of a reduced-toxicity conditioning regimen based on the use of treosulfan

Blood ◽  
2012 ◽  
Vol 120 (2) ◽  
pp. 473-476 ◽  
Author(s):  
Maria Ester Bernardo ◽  
Eugenia Piras ◽  
Adriana Vacca ◽  
Giovanna Giorgiani ◽  
Marco Zecca ◽  
...  
Keyword(s):  
Stem Cell ◽  
Hematopoietic Stem Cell Transplantation ◽  
Stem Cell Transplantation ◽  
Cell Transplantation ◽  
Hematopoietic Stem Cell ◽  
Cumulative Incidence ◽  
Chronic Gvhd ◽  
Conditioning Regimen ◽  
Unrelated Donor ◽  
Hematopoietic Stem

Abstract Sixty thalassemia patients (median age, 7 years; range, 1-37) underwent allogeneic hematopoietic stem cell transplantation (HSCT) after a preparation combining thiotepa, treosulfan, and fludarabine. Before HSCT, 27 children were assigned to risk class 1 of the Pesaro classification, 17 to class 2, and 4 to class 3; 12 patients were adults. Twenty patients were transplanted from an HLA-identical sibling and 40 from an unrelated donor. The cumulative incidence of graft failure and transplantation-related mortality was 9% and 7%, respectively. Eight patients experienced grade II-IV acute GVHD, the cumulative incidence being 14%. Among 56 patients at risk, 1 developed limited chronic GVHD. With a median follow-up of 36 months (range, 4-72), the 5-year probability of survival and thalassemia-free survival are 93% and 84%, respectively. Neither the class of risk nor the donor used influenced outcome. This treosulfan-based preparation proved to be safe and effective for thalassemia patients given allogeneic HSCT.

No Improvement of Overall-Survival in Children with High-Risk Acute Myeloid Leukemia by Stem Cell Transplantation in 1st Complete Remission.

Blood ◽  
2006 ◽  
Vol 108 (11) ◽  
pp. 320-320 ◽  
Author(s):  
Dirk Reinhardt ◽  
Bernhard Kremens ◽  
Martin Zimmermann ◽  
Josef Vormoor ◽  
Michael Dworzak ◽  
...  
Keyword(s):  
Overall Survival ◽  
High Risk ◽  
Complete Remission ◽  
Children And Adolescents ◽  
Chronic Gvhd ◽  
Conditioning Regimen ◽  
Disease Free Survival ◽  
Hla Typing ◽  
Unrelated Donor ◽  
The Impact

Abstract One aim of the AML-BFM 98 study was to evaluate prospectively the impact of matched sibling donor (MSD)-SCT in 1st complete remission (CR) in children with high-risk (HR)-AML. Patients: Between 7/1998 and 3/2004 494 children and adolescents were enrolled in the studies AML-BFM 98 and the AML-BFM 98 Interim 2003. Patients with favorable cytogenetics [t(8;21), inv(16), t(15;17)], corresponding morphology (AML FAB M1/2 with Auer rods, M4eo, M3) and < 5% blasts on day 15 were defined as standard risk (SR)-group (n=177). All others were stratified to HR-group (n=317) and eligible for SCT in 1st CR. Out of 275 patients achieving 1st CR (87%) 63 patients had a MSD and 188 had no MSD (intent-to-treat group, ITT) while 24 patients had to be excluded due to missing HLA typing or initial refusal to SCT. Thirty-six patients received MSD-SCT (=as-treated group), another two children were transplanted from a matched unrelated donor (MUD) although an MSD was available. The reasons not performing SCT in 1st CR in the remaining 25 children with a donor available were early relapse (n=7), death in CR (n=2), clinical reasons (n=8), or refusal of SCT (n=8). Chemotherapy (CHT) only was given in 192 patients (n=167 without MSD, n=25 with a MSD). Another 21 children were transplanted from an unrelated donor (n=18), family donor (n=1), haploidentical donor (n=2). The reasons were slow response, very poor cytogenetics or other clinical reasons. Treatment: All patients received double induction and consolidation. MSD-SCT in 1st was scheduled after 4 blocs of treatment. Children who were not transplanted in 1st CR received intensification and a 1-year maintenance therapy. The recommended conditioning regimen consisted in busulfan and cyclophosphamide. Results ITT analysis revealed no significant differences in of 5 year disease-free survival (DFS) and overall survival (OS) between children with or without a donor (no donor vs. donor: DFS 43±4% vs. 47±7% plog rank 0.52; OS 56±4% vs. 58±9%, plog rank 0.16). The as-treated analysis gave similar results: CHT only vs. MSD-SCT: DFS 35±11% vs. 59±9% p Mantel-byar 0.13; OS 59±13% vs. 62±12%, p Mantel-byar 0.51). The major reasons of treatment failures were relapses in all groups [CHT only n=100 (52%), MSD-SCT n=13 (34%), MUD-SCT n=9 (50%)]. A 2nd CR was achieved in 71% of the CHT only group (n=74). After SCT in 2nd CR, OS was 40±6%. By contrast, only two children (9%) of 22 children after relapse following SCT in 1st CR could be salvaged. Severe late adverse events (e.g. severe chronic GvHD CTC grade IV, destruction of big joints, intracerebral bleedings) were more frequent in children transplanted in 1st CR (15%) than in those with CHT only (including SCT in 2nd CR; 5%, p×2< 0.05). Conclusion: In the population-based, prospective multi-center study AML-BFM 98 allogeneic MSD-SCT in 1st CR showed no advantage in children and adolescents with HR-AML. Considering the higher toxicity of allogeneic SCT, in the ongoing trial AML-BFM 2004, this SCT (MSD or MUD) is restricted to patients in 2nd CR and refractory AML.

Successful Engraftment Using Varied Stem Cell Sources, Low Toxicity, and Long-Term Survival Using a Bu/Flu/ATG Reduced Intensity Allogeneic Transplantation in High Risk Pediatric Patients Ineligible for Myelablative Therapy: Results of the Pediatric Blood and Marrow Transplant Consortium (PBMTC) Study ONC0313.

Blood ◽  
2007 ◽  
Vol 110 (11) ◽  
pp. 623-623
Author(s):  
Michael A. Pulsipher ◽  
Haydar Frangoul ◽  
Michel Duval ◽  
Rakesh Goyal ◽  
Peter J. Shaw ◽  
...  
Keyword(s):  
Stem Cell ◽  
High Risk ◽  
Chronic Gvhd ◽  
Allogeneic Transplantation ◽  
High Rate ◽  
Unrelated Donor ◽  
Group Setting ◽  
Term Survival ◽  
Cell Sources ◽  
Reduced Intensity

Abstract The role of reduced intensity conditioning (RIC) regimens in pediatric pts is unclear. To define the feasibility and toxicity of a bu/flu/ATG approach in pediatric pts ineligible for myeloablative transplant, we completed a trial at 25 North American and Australian institutions participating in the PBMTC. Forty six pediatric pts (age 2–20yrs, med 11) were enrolled with the following stem cell sources: 8 related donor (RD) BM (2 mismatched); 8 RD-PBSC; 10 unrelated donor (UD) BM; 8 UD-PBSC; 12 UD-CB. Qualifying indications included a previous allogeneic (n=22) or autologous (n=7) transplant, severe organ toxicity (n=8), invasive fungal infection (n=3), and other comorbidities (n= 6 pts, 4 with Down syndrome). Diagnoses included ALL (4 CR2; 11 CR3, 1 secondary), AML (7 CR2; 3 CR3; 3 secondary, 2 PR2+), MLL (1 CR3), CML (1 CR3), HD (3 CR3, 1 PR3), B-NHL (1 PR3), MDS (1 RA; 6 secondary), and JMML (1 PR2, 1 PR3). Patients received busulfan 0.8mg/kg/dose IV x 8 doses (target AUC 900–1100 uM/min), fludarabine 30mg/m2/d x 6 days, and thymoglobulin, 2.5 mg/m2/d x 1 day for RD and x 4 days for UD and UCB. GVHD prophylaxis consisted of cyclosporine (CSP) and mycophenylate mofetil (MMF, 15mg/kg bid). MMF was stopped at day +30 for RD and CB recipients and tapered between d +40–100 for UD recipients. CSP was tapered between d+42–100 for RD and d+100–180 for UD and UCB. Four pts rejected their grafts (9%), one after mismatched RD-BM, two after UD-BM and one after UCB. Two pts died prior to day 100 due to toxicity (4%) and the overall NRM was 11%. Acute GVHD occurred in 9/33 evaluable patients (grade I 9%, grade II 18%, no grade III-IV) and chronic GVHD occurred in 7/28 (25%) evaluable pts. Median follow up is 17 months (range 1–45 m). Two year EFS (events: rejection, relapse, death in remission) is 38% (SE 8) and 2yr OS is 51% (SE 9). No difference in outcome was noted based upon stem cell source, history of previous BMT vs. none, or ALL vs. myeloid disease vs. lymphoma. A trend toward improved survival was noted in “intermediate risk” patients (ALL CR2, AML CR2, and primary MDS without h/o previous BMT: 2yr OS 67 vs. 31%, intermediate vs. high risk, p=0.1). Patients who had undergone transplantation trended toward better survival when their previous myeloablative regimen did not contain TBI (2yr OS 82 vs. 31%, non-TBI vs. TBI, p=0.09). In conclusion, RIC using bu/flu/ATG in a cooperative group setting leads to engraftment in >90% of high risk pediatric pts using related or unrelated BM or PBSC, or unrelated CB. In spite of significant prior therapy, high risk disease, and a high rate of comorbidities in this cohort, the risk of NRM or GVHD is low. Prolonged survival has occurred not only in pts with myeloid disease (2yr OS 43% (SE 12)), but also in pts with ALL (2yr OS 49% (SE 15)), and lymphoma (2yr OS 50% (SE 35)). Flu/bu/ATG is a promising approach for pediatric pts ineligible for myeloablative transplant.

Fludarabine, Amsacrine, High-Dose Cytarabine and Total Body Irridation Followed by Allogeneic Stem Cell Transplantation for the Treatment of High Risk or Relapsed Acute Lymphoblastic Leukemia.

Blood ◽  
2007 ◽  
Vol 110 (11) ◽  
pp. 5086-5086
Author(s):  
Fabian Zohren ◽  
Thorsten Graef ◽  
Ingmar Bruns ◽  
Akos Czibere ◽  
Fenk Roland ◽  
...  
Keyword(s):  
Stem Cell ◽  
High Risk ◽  
Stem Cell Transplantation ◽  
Cell Transplantation ◽  
Chronic Gvhd ◽  
Good Condition ◽  
White Blood Count ◽  
High Dose ◽  
Unrelated Donor ◽  
Grade Iii

Abstract In this prospective study we examined the use of an intensified conditioning regimen followed by allogeneic blood-stem-cell transplantation (BSCT) for the treatment of young adults in physically good condition with relapsed or high risk acute lymphoblastic leukaemia (ALL). Eleven patients with ALL received FLAMSA chemotherapy (fludarabine 30mg/m2 - cytarabine 2000mg/m2 -amsacrine 100 mg/m2 on day −10, − 9, − 8and −7), Anti-Thymocyte-Globulin (ATG 20 mg/kg BW on day −6, −5 and −4) and fractionated TBI (2 x 2 Gy on day −3, − 2 and −1) followed by matched unrelated donor (n=10) or matched sibling donor (n=1) SCT. The principle reasons for high risk stratification were refractory disease during first-line induction therapy (6, 55%), relapse (2, 18%), extramedullary disease manifestation (1, 9%), ALL subtype (6, 55%), unfavorable cytogenetics (5, 45%) and white blood count >30000 μL at time of diagnosis (3, 27%). After a median follow-up time of 604 days (range 202 – 1042 days) 8 patients (73%) are alive and 3 patients (27%) died. The median overall survival was not reached. Two patients died after relapse on days +121 and +449, another patient died from treatment related complications (HUS-TTP) on day +87. One patient relapsed on day +200 and is currently alive, the remaining 7 patients are alive and free of desease. Treatment related toxicities were acceptable. With 6 out of 11 patients developing grade III/IV infections during neutropenia, infectious complications remained of major importance. Other non-haematological side effects seen within this group of patients were less frequent and almost exclusively limited to gastrointestinal toxicities. Five patients (45%) had grade III/IV mucositis and 5 patients (45%) had grade III/IV nausea, while 4 patients (36%) showed grade III/IV diarrhoea. There was no case of acute toxicity related to the cardiavascular or central nervous system. The incidence of acute GvHD (aGvHD) was 36% (n = 4) and limited to grades II-III. Eight patients were evaluable for chronic GvHD (cGvHD). Out of those 4 patients (36%) developed cGvHD (3 limited disease, 1 extensive disease). We conclude that allogeneic transplatation after the FLAMSA-ATG-TBI regimen is feasible and provides effective therapy for this group of high-risk patients.

Low Relapse without Excessive Transplant-Related Mortality Following Allogeneic Stem Cell Transplantation in Patients with High Risk Secondary Acute Myeloblastic Leukaemia and Myelodysplastic Syndromes, Long-Term Outcomes in a Single Centre Experience.

Blood ◽  
2009 ◽  
Vol 114 (22) ◽  
pp. 4308-4308
Author(s):  
Jean El-cheikh ◽  
Luca Castagna ◽  
Sabine Furst ◽  
Catherine Faucher ◽  
Benjamin Esterni ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Stem Cell ◽  
High Risk ◽  
Stem Cell Transplantation ◽  
Cell Transplantation ◽  
Conditioning Regimen ◽  
Unrelated Donor ◽  
Allogenic Stem Cell Transplantation ◽  
Related Mortality

Abstract Abstract 4308 Allogenic stem cell transplantation (Allo-SCT) as a therapy for secondary acute myeloid leukaemia (sAML) and myelodisplastic syndromes (MDS) is the most powerful treatment option. However, (Allo-SCT) is also complicated by a high risk for treatment-related morbidity and mortality. We analysed retrospectively the data of 70 patients transplanted at our institution from June 1995 to december 2008, 44 patients (63%) with sAML and 26 patients (37%) with MDS was treated with (Allo-SCT); median age at diagnosis was 41 years, (15-70), and the median age of 42, 5 years (16-70) at transplantation; The conditioning regimen was myeloablative combining (cyclophosphamide and TBI) in 16 patients (23%) and 54 patients (77%) was with a reduced intensity conditioning (RIC) regimens combining fludarabine, busulfan, and antithymocyte globulin; 11 patients (16%) were infused with bone marrow (BM), 55 patients (79%) peripherical blood stem cells (PBSC), and 4 patients (5%) cord blood cells; in 49 cases (70%) donor was a HLA identical sibling and in 21 (30%) was a matched unrelated donor; 41 patients (59%) carried high risk cytogenetic features, like (7q-, 5q-, > 3 alterations), while was normal in 24 patients (34%), and in 5 patients (7%) was unknown. Disease status at transplantation was as follow: CR in 24 patients (34%), 34 patients (49%) was refractory or in progression after treatment, and 12 patients (17%) was with a stable disease. With a median follow-up of 55 months (3-150), 30 patients (43%) are alive, the overall survival OS at 2 years and 5 years was 48 % and 39% respectively, and after ten years of follow up, OS was 30%, 95%CI [17.8-50.8]. We observed also that 26 % of refractory patients and 54% of patients in CR are alive at five years of transplantation. The probability of progression after transplantation at five and ten years was 31% with 95%CI [20.-46.5]. 2 years and 5 years treatment related mortality (TRM) was 23% and 26% respectively, and no modification at ten year, 95%CI [14.3-37.3]. TRM occurred in 16 patients (23%). Cause of death was; infections in 5 patients (7%), GvHD in 3 patients (4%), GvHD and infection in 3 patients (4%), multi organ failure (MOF) in 5 patients (7%). In multivariate analysis; OS, PFS or TRM, were not influenced by donor type (HLA id sibling vs others), conditioning regimen (RIC vs MAC), and stem cell source (bone marrow vs PBSC). Allogenic stem cell transplantation can be considered as a good option for the treatment of patients with high risk sAML and MDS when compared with the remission rate at five years of the other nonallogeneic SCT therapies. Disclosures: No relevant conflicts of interest to declare.

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