Rituximab, fludarabine, and total body irradiation as conditioning regimen before allogeneic hematopoietic stem cell transplantation for advanced chronic lymphocytic leukemia: Long-term prospective multicenter study
Michallet M.,Center Hospitalier Lyon Sud |
Socie G.,Hematology Bone Marrow Transplantation |
Mohty M.,Nantes University Hospital Center |
Sobh M.,Center Hospitalier Lyon Sud |
And 8 more authors.
Experimental Hematology | Year: 2013
To evaluate the efficacy and toxicity of reduced-intensity conditioning (RIC) combining fludarabine, low-dose total body irradiation (TBI) and rituximab before allogeneic hematopoietic stem cell transplantation (allo-HSCT) from human leucocyte antigen (HLA) identical siblings, we conducted a prospective study in patients ≤65 years old with advanced chronic lymphocytic leukemia (CLL) stage B or C in response after a salvage treatment. Conditioning included rituximab (375 mg/m2 on day 5), fludarabine (30 mg/m2 from day 4 to day 2), TBI (2 Gy on day 0), and rituximab (500 mg/m2 on days 1 and 8). Forty patients were included, 34 (85%) were male with a median age of 54 years (range, 35-65 years), 38 (95%) were in B stage, and 2 were in stage C; only 7 patients (17%) were in complete response. Seven (17%) patients did not receive rituximab. Thirty-nine (98%) patients engrafted, 17 patients developed acute graft-versus-host disease (GVHD) grade ≥II with a cumulative incidence at 3 months of 44% (36-52) with a significant protective effect of rituximab (p = 0.02). The cumulative incidence of chronic GVHD was 29% (21-36) at 12 months for both limited and extensive forms. The median overall survival was not reached with 5-years probability of 55% (41-74). The multivariate analysis showed a positive effect of rituximab on overall survival and event-free survival (hazard ratio [HR] = 0.1 [0-0.6], p = 0.02; and HR = 0.1 [0-0.4], p = 0.035, respectively). The association of fludarabine, TBI, and rituximab is feasible, well tolerated, and allows better outcomes in advanced CLL. © 2013 ISEH - Society for Hematology and Stem Cells.
Comparison of Unrelated Cord Blood and Peripheral Blood Stem Cell Transplantation in Adults with Myelodysplastic Syndrome after Reduced-Intensity Conditioning Regimen: A Collaborative Study from Eurocord (Cord blood Committee of Cellular Therapy & Immunobiology Working Party of EBMT) and Chronic Malignancies Working Party
Robin M.,Hematology Bone Marrow Transplantation |
Ruggeri A.,Eurocord International Registry |
Labopin M.,University Pierre and Marie Curie |
Niederwieser D.,University of Leipzig |
And 18 more authors.
Biology of Blood and Marrow Transplantation | Year: 2015
Hematopoietic stem cell transplantation (HSCT) remains the only curative treatment in patients with higher risk myelodysplastic syndrome (MDS), but the choice of the optimal alternative stem cell source is still a subject of debate in patients lacking an HLA-matched sibling donor. Here, we report on a large series of patients with MDS (N=631) transplanted either with mobilized peripheral stem cells (PBs) from unrelated donors (n=502) or with umbilical cord blood transplant (UCB, n=129) as alternative grafts after reduced-intensity conditioning. Neutrophil engraftment was higher after PB (98% versus 78%, P<.0001). Acute graft-versus-host disease (GVHD) was similar after PB (31%) and UCB (29%), and chronic GVHD incidence was higher after PB (41% versus 23%). Two-year nonrelapse mortality was lower after PB (31% versus 42% P=03). There was a better overall survival (OS) and disease-free survival (DFS) after PB (49%±2% versus 30%±4%, P<.0001 and 44%±2% versus 28%±4%, P<.0001). Multivariate analysis confirmed the advantage of PB for treatment-related mortality, OS, and DFS, whereas relative risk of chronic GVHD was similar. A multivariate analysis comparing PB from a 10/10 HLA-matched donor, PB from a 9/10 HLA-matched donor, and UCB showed an advantage on treatment-related mortality, DFS, and OS only in 10/10PB. We conclude that in MDS patients lacking an HLA-matched sibling donor, PB from a 10/10 HLA-matched unrelated donor is the preferred source of hematopoietic stem cells. HLA-mismatched unrelated donor or cord blood seem to give similar inferior results except for neutrophil engraftment, which is delayed after UCB. © 2015 American Society for Blood and Marrow Transplantation.
Robin M.,Hematology Bone Marrow Transplantation |
Giannotti F.,Eurocord International Registry |
Deconinck E.,University of Franche Comte |
Mohty M.,Hematologie |
And 23 more authors.
Biology of Blood and Marrow Transplantation | Year: 2014
To determine whether umbilical cord blood transplantation (UCBT) is an alternative cure for myelofibrosis (MF), we evaluated 35 UCBTs reported to Eurocord. Seven patients had secondary acute myeloid leukemia (AML) at UCBT, and median age at UCBT was 54 years. Twenty-four patients received a reduced-intensity conditioning (RIC) regimen, and 17 of 35 patients received total body irradiation (2 to 12 Gy)-fludarabine-cyclophosphamide (TCF) conditioning. The median follow-up was 24 months. The cumulative incidence of neutrophil recovery at 60 days was 80%. Fifteen patients relapsed after UCBT. The 2-year overall survival and event-free-survival (EFS) rates were 44% and 30%, respectively. All patients given TCF achieved neutrophil and platelet recovery, and the use of TCF was associated with superior EFS in the RIC population (44% versus 0%, P= .001). Patients with transformation to AML had similar outcomes to patients with less advanced stages. In conclusion, despite graft failure remaining a major concern, the role of UCBT in the management of MF, especially using RIC TCF-based regimens, deserves further investigation to improve results. © 2014 American Society for Blood and Marrow Transplantation.
Montefusco V.,Hematology Bone Marrow Transplantation |
Galli M.,Hematology |
Spina F.,Hematology Bone Marrow Transplantation |
Stefanoni P.,Hematology |
And 16 more authors.
Leukemia and Lymphoma | Year: 2014
Immunomodulatory drugs (IMiDs) may favor autoimmune disease (AD) occurrence. We conducted a retrospective study to evaluate AD occurrence among IMiD-treated patients with myeloma. Patients were grouped into three classes depending on the type of IMiD engaged. The first group included patients treated with thalidomide (Thal) (n = 474), the second group with lenalidomide (Len) (n = 140) and patients in the third group were first treated with Thal followed by Len (Thal-Len) (n = 94). Absolute risk of AD was 0.4% for patients treated with Thal, 4.3% for Len and 1.1% for Thal-Len. ADs manifested prevalently as autoimmune cytopenias (55%), although we observed one vasculitis, one optic neuritis, one Graves' disease and one polymyositis. ADs occurred preferentially in the first months of IMiD treatment. A previous autologous transplant was shown to be a significant risk factor. All ADs were managed with IMiD discontinuation and steroids, resolving in a few weeks, except for Graves' disease and polymyositis. © 2014 Informa UK, Ltd.