Haploidentical Peripheral Blood Stem Cell Transplantation with Post-Transplantation Cyclophosphamide in Primary Refractory Acute Myeloid Leukemia

Blood ◽  
2015 ◽  
Vol 126 (23) ◽  
pp. 4411-4411
Author(s):  
Sarita Rani Jaiswal ◽  
Sumita Chatterjee ◽  
Aditi Chakrabarti ◽  
Sneh Bhargava ◽  
Ray Kunal ◽  
...  

Abstract In a pilot study, 75 patients with Primary Refractory (PRef) AML without matched family donors were offered post-transplantation cyclophosphamide (PTCY) based haploidentical peripheral blood stem cell (PBSC) transplantation. Twenty-seven patients (36%) opted for haploidentical transplantation with or without further chemotherapy. There was no difference in the patient or disease characteristics amongst patients undergoing transplantation or not. The conditioning regimen comprised of FluCyMel (n=5), FluBuMel (n=17) and FluTreoTBI (n=5). MMF was tapered between days 14 and 21 posttransplant in the absence of GVHD and cyclosporine A was tapered between days 60 and 90. The progression free survival at a median follow-up of 25 months was 36.6% and 0% in the transplant and the non-transplant group (p=0.0001). Prompt engraftment was noted at a median of 14 days irrespective of disease status or conditioning regimens. Cumulative incidences of acute graft-versus-host disease (GVHD) and chronic GVHD were 26.6% and 8% respectively. The overall incidence of infections remained low, with CMV reactivation and invasive aspergillosis occurring in 9 and 2 patients respectively. CMV disease was diagnosed in 2 patients. Non-relapse mortality at 1 year was 16.7%. The incidence of disease progression was 54%. Factors positively impacting progression free survival were < 15% marrow blasts at transplant and a Natural Killer Cell Ligand Mismatch (NKLMM) donor. NKLMM, Haplotype or B scores had no impact on CMV infection or GVHD. However, Bx Haplotype was associated with lower NRM (5%, 95%CI-1-9) compared to 48.6% (95%CI 28.2-69.0) in AA Haplotype (p=0.01). Disease status did not impact the overall survival (p=0.11) in the HSCT cohort. In fact, NKLMM donors with B haplotype had the greatest impact on overall survival in both the HSCT cohort (71.4%, 95%CI 54.3-88.5%) compared to 20% (95%CI 8.8-31.2, p=0.01) in those without the same. Our data suggests PTCY based Haploidentical PBSC transplantation is feasible in patients with PRef AML and donor NKLMM might improve progression free survival, provided the conditioning protocol and the post-grafting therapy offer the optimum platform for alloreactivity of NK cells. Disclosures No relevant conflicts of interest to declare.

Blood ◽  
1999 ◽  
Vol 94 (2) ◽  
pp. 455-464 ◽  
Author(s):  
O. Ringdén ◽  
M. Remberger ◽  
V. Runde ◽  
M. Bornhäuser ◽  
I.W. Blau ◽  
...  

Peripheral blood stem cell (PBSC) transplants from HLA-A, -B, and -DR compatible unrelated donors (n = 45) were compared with bone marrow (BM; BM group, n = 45). Eighteen patients received CD34-selected PBSC (CD34 group). The PBSCs contained more mononuclear cells, CD34+, CD3+, and CD56+cells compared with marrow (P < .001). Engraftment was achieved in all 45 patients in the BM group, in 43 of 45 (95%) in the PBSC group, and in 14 of 18 (78%) in the CD34 group (P < .01). In multivariate analysis, a short time to absolute neutrophil count (ANC) equal to 0.5 × 109/L was associated with the PBSC/CD34 groups (P < .001) and granulocyte colony-stimulating factor (G-CSF) treatment (P = .017). A short time to platelets equal to 50 × 109/L was associated with PBSC (P = .003) and no methotrexate (P = .015). Grades II-IV acute graft-versus-host disease (GVHD) was 20% in the BM controls, 30% in the PBSC group, and 18% in the CD34 group (not significant [NS]). The probability of chronic GVHD was 85% in the BM group, 59% in the PBSC group, and 0% in the CD34 group (P < .01). One-year transplant-related mortality was 21% and 27% and survival was 53% and 54% in the BM and PBSC groups, respectively (NS). The 2-year relapse-free survival was 41% and 46% in the two groups, respectively.


Blood ◽  
1999 ◽  
Vol 94 (2) ◽  
pp. 455-464 ◽  
Author(s):  
O. Ringdén ◽  
M. Remberger ◽  
V. Runde ◽  
M. Bornhäuser ◽  
I.W. Blau ◽  
...  

Abstract Peripheral blood stem cell (PBSC) transplants from HLA-A, -B, and -DR compatible unrelated donors (n = 45) were compared with bone marrow (BM; BM group, n = 45). Eighteen patients received CD34-selected PBSC (CD34 group). The PBSCs contained more mononuclear cells, CD34+, CD3+, and CD56+cells compared with marrow (P &lt; .001). Engraftment was achieved in all 45 patients in the BM group, in 43 of 45 (95%) in the PBSC group, and in 14 of 18 (78%) in the CD34 group (P &lt; .01). In multivariate analysis, a short time to absolute neutrophil count (ANC) equal to 0.5 × 109/L was associated with the PBSC/CD34 groups (P &lt; .001) and granulocyte colony-stimulating factor (G-CSF) treatment (P = .017). A short time to platelets equal to 50 × 109/L was associated with PBSC (P = .003) and no methotrexate (P = .015). Grades II-IV acute graft-versus-host disease (GVHD) was 20% in the BM controls, 30% in the PBSC group, and 18% in the CD34 group (not significant [NS]). The probability of chronic GVHD was 85% in the BM group, 59% in the PBSC group, and 0% in the CD34 group (P &lt; .01). One-year transplant-related mortality was 21% and 27% and survival was 53% and 54% in the BM and PBSC groups, respectively (NS). The 2-year relapse-free survival was 41% and 46% in the two groups, respectively.


Blood ◽  
2006 ◽  
Vol 108 (11) ◽  
pp. 326-326 ◽  
Author(s):  
John A. Thompson ◽  
Richard I. Fisher ◽  
Michael L. LeBlanc ◽  
Joseph M. Unger ◽  
Stephen J. Forman ◽  
...  

Abstract Purpose: To determine the effect of post-transplant immunotherapy with Interleukin-2 (IL-2) on the progression-free and overall survival of patients with non-Hodgkin’s lymphoma (NHL) after autologous stem cell transplantation and to assess the toxicity of post-transplant IL-2 therapy. Patients and Methods: Patients with previously treated low, intermediate, or high grade NHL (except Working Formulation Groups A and I) were treated with high-dose cyclophosphamide, etoposide, and total body irradiation (TBI) and an autologous peripheral blood stem cell transplant (PBSCT). Twenty-eight to 80 days after PBSCT, patients were randomized to treatment with IL-2 versus observation. Results: Between January 1995 and July 2004, three hundred ninety-four patients with low-grade (n=61) or intermediate-high grade NHL (n=315) were registered at one of 39 SWOG transplant centers. One hundred ninety patients did not proceed to randomization, because of patient refusal (44), grade V toxicity (30), disease progression (28), toxicity (28), or other reasons. Two hundred four patients were randomized to treatment with continuous infusion intravenous IL-2 (9 ×106 units/m2/day for four days followed five days later by 1.6 ×106 units/m2/day for 10 days) versus observation. The 4-year progression-free survival estimate for all eligible patients is 34%, and the 4-year overall survival estimate is 52%. There was no difference in progression-free survival (hazard ratio (HR) of IL-2 to observation = 0.90; p = 0.56) nor in overall survival (HR of IL-2 to observation = 0.88; p = 0.55). There were no deaths related to IL-2 treatment. Grade IV IL-2-related toxicities included hematologic (n=10), cardiovascular (4), renal/bladder (2), flu-like symptoms (1), lung (1), metabolic (1), and neurologic (1) and were reversible in all cases. Conclusions: These results confirm earlier SWOG findings that a regimen of cylophosphamide, etoposide and TBI followed by PBSCT can be administered to patients with relapsed or refractory NHL with acceptable toxicity and with encouraging progression-free and overall survival. Post-transplant therapy with IL-2 given at this dose and schedule of administration had no significant effect on post-transplant relapse, progression-free survival or overall survival.


Blood ◽  
2009 ◽  
Vol 114 (22) ◽  
pp. 3381-3381
Author(s):  
Byung Woog Kang ◽  
Shi Nae Kim ◽  
Joon Ho Moon ◽  
Joo-Seop Jung ◽  
Goon-Jae Cho ◽  
...  

Abstract Abstract 3381 Poster Board III-269 This study compared the results of allogeneic peripheral blood stem cell transplantation (PBSCT) from unrelated and related donors, and involved 235 consecutive patients from 10 centers who received an allogeneic PBSCT for hematological malignancies between Jan 2004 and Dec 2008. Among these patients, 160 (68.1%) received an HLA-matched related PBSCT and 75 (31.9%) a matched unrelated PBSCT. Sixty-five patients (27.7%) had a high-risk disease status at transplantation. The cumulative incidence of acute graft-versus-host disease (GVHD) was 43.9% for the related PBSCT group and 59.3% for the unrelated PBSCT group (P-value:0.011). Although the cumulative incidence of chronic GVHD was no different between the related (54.2%) and unrelated (64.9%; P-value:0.199) PBSCT groups, the cumulative incidence of extensive chronic GVHD was higher among the unrelated PBSCT group (34.9%) than among the related PBSCT group (17.0%; P-value:0.015). Plus, the unrelated PBSCT group showed a higher cumulative incidence of CMV infection (44.6%) than the related PBSCT group (26.8%; P-value:0.002). The overall survival rate at four-year was 58.2% versus 49.1% (p=0.698) and the cumulative incidence of relapse 28.4% versus 25.0% (P-value:0.289) for the related and unrelated PBSCT groups, respectively. Among the factors examined, unrelated PBSCT (P-value:0.024), the CD34-positive cell count (>6 × 106/kg; P-value:0.041), and CMV infection (P-value:0.066) were all related with a higher incidence of extensive chronic GVHD. However, in a multivariate analysis, only unrelated PBSCT was identified as a risk factor for the development of extensive chronic GVHD (hazard ratio=2.012, 95% confidence interval=1.006-4.023; P-value:0.048). In conclusion, the overall survival and relapse incidence were not significantly different between the related and unrelated PBSCT groups. However, a higher incidence of CMV infection and extensive chronic GVHD was observed in the unrelated PBSCT group. Disclosures: No relevant conflicts of interest to declare.


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