scholarly journals Reduced-Intensity Conditioning with Fludarabine, Melphalan, and Total Body Irradiation for Allogeneic Hematopoietic Cell Transplantation: The Effect of Increasing Melphalan Dose on Underlying Disease and Toxicity

2019 ◽  
Vol 25 (4) ◽  
pp. 689-698 ◽  
Author(s):  
George L. Chen ◽  
Theresa Hahn ◽  
Gregory E. Wilding ◽  
Adrienne Groman ◽  
Alan Hutson ◽  
...  
Blood ◽  
2019 ◽  
Vol 134 (Supplement_1) ◽  
pp. 5742-5742
Author(s):  
Han Bi Lee ◽  
Jae-Ho Yoon ◽  
Gi June Min ◽  
Sung-Soo Park ◽  
Silvia Park ◽  
...  

Allogeneic hematopoietic cell transplantation (allo-HCT) preconditioning intensity, donor choice, and graft-versus-host disease (GVHD) prophylaxis for advanced myelofibrosis (MF) have not been fully elucidated. Thirty-five patients with advanced MF were treated with reduced-intensity conditioning (RIC) allo-HCT. We searched for matched sibling (n=16) followed by matched (n=10) or mismatched (n=5) unrelated and familial mismatched donors (n=4). Preconditioning regimen consisted of fludarabine (total 150 mg/m2) and busulfan (total 6.4 mg/kg) with total body irradiation≤ 400cGy. All showed engraftments, but four (11.4%) showed either leukemic relapse (n=3) or delayed graft failure (n=1). Two-year overall survival (OS) and non-relapse mortality (NRM) was 60.0% and 29.9%, respectively. Acute GVHD was observed in 19 patients, and grade III-IV acute GVHD was higher with HLA-mismatch (70% vs. 20%, p=0.008). Significant hepatic GVHD was observed in nine patients (5 acute, 4 chronic), and six of them died. Multivariate analysis revealed inferior OS with HLA-mismatch (HR=6.40, 95%CI 1.6-25.7, p=0.009) and in patients with high ferritin level at post-HCT D+21 (HR=7.22, 95%CI 1.9-27.5, p=0.004), which were related to hepatic GVHD and high NRM. RIC allo-HCT can be a valid choice for advanced MF. However, HLA-mismatch and high post-HCT ferritin levels related to significant hepatic GVHD should be regarded as poor-risk parameters. Disclosures Kim: Handok: Honoraria; Amgen: Honoraria; Celgene: Consultancy, Honoraria; Astellas: Consultancy, Honoraria; Hanmi: Consultancy, Honoraria; AGP: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees; SL VaxiGen: Consultancy, Honoraria; Novartis: Consultancy; Janssen: Honoraria; Daiichi Sankyo: Honoraria, Membership on an entity's Board of Directors or advisory committees; Otsuka: Honoraria; BL & H: Research Funding; Chugai: Honoraria; Yuhan: Honoraria; Sanofi-Genzyme: Honoraria, Research Funding; Novartis: Honoraria, Membership on an entity's Board of Directors or advisory committees. Lee:Alexion: Consultancy, Honoraria, Research Funding; Achillion: Research Funding.


Blood ◽  
2007 ◽  
Vol 110 (11) ◽  
pp. 3059-3059 ◽  
Author(s):  
Wolfgang A. Bethge ◽  
Lange Thoralf ◽  
Martin Bornhaeuser ◽  
Michael Stadler ◽  
Lutz Uharek ◽  
...  

Abstract Allogeneic hematopoietic cell transplantation (HCT) using reduced intensity conditioning (RIC) regimens offers a potential curative therapy to patients with advanced NHL. RIC HCT induces potent graft-versus-lymphoma effects with best results in patients with low tumor burden at time of HCT. Combined use of radioimmunotherapy (RIT) with RIC may increase anti-lymphoma activity of RIC while HCT provides rescue from hematologic toxicity of RIT. This may allow dose escalation of RIT. A multicenter phase I/II study of allogeneic HCT combining RIT using yttrium-90-ibritumomab tiuxetan (Y90-CD20) with two RIC regimens for treatment of patients with NHL has been initiated. Patients with indolent NHL (Arm A) receive RIT with Y90-CD20 (0.4 mCi/kg) on day −14 combined with RIC using fludarabine (30 mg/m^2 day −4 to−2) and 2 Gy TBI (day 0). Patients with aggressive NHL (Arm B) receive an escalated dose of Y90-CD20 (0,6–0,8 mCi/kg) on day −14 combined with RIC using fludarabine (30 mg/m^2 day −8 to−4), melphalan (140 mg/m^2 day −3) and campath (20–30 mg day −3 to−2). For postgrafting immunosuppression either CSA/MMF (Arm A) or CSA alone (Arm B) is used. To date, 31 patients have been enrolled (Arm A=23, Arm B=8). Diagnoses in Arm A were FL (n=12), MCL (n=6), CLL (n=4) and Immunocytoma (n=1). Diagnoses in Arm B were DLBCL (n=6), blastoid MCL (n=1) and transformed CLL (n=1). Median age was 55 (range, 34–67) years. PBSC grafts were either from matched related (n=10) or matched unrelated donors (n=21). All patients were high risk with refractory disease or relapse after preceding HCT. Disease status after salvage therapy at time of HCT was in Arm A: CR=1, PR=18, SD=4 and in Arm B: PR=8. No additional toxicity due to RIT was observed. Engraftment was rapid and sustained with no graft rejections. In Arm A median time to >500 granulocytes/μL was 13 (range, 0–69) days and to >20000 platelets/μL 3 (range, 0–69) days (in 11 patients platelets never dropped <20000/μL). In Arm B median time to >500 granulocytes/μL was 17 (range, 9–23) days and to >20000 platelets/μL 11 (range, 8–29) days. TRM in the first 100 days was 3%, overall 19%. Incidence of grade II-IV GVHD in Arm A was 35% (II=3, III=4, IV=1) and in Arm B 25% (II=2). Best disease response observed was in Arm A: CR=18, PR=5 and in Arm B: CR=3, PR=5. To date, 16/23 patients in Arm A and 6/8 patients in Arm B are alive with a median follow-up of 271 (range, 20–390) days, resulting in a Kaplan-Meier 1 year survival estimate of 65% in Arm A and 62% in Arm B. Causes of death were infection=5, GVHD=1, relapse=1 in Arm A and relapse=2 in Arm B. A combination of RIT with RIC is feasible with no additional toxicity due to RIT and stable engraftment in all patients. Preliminary response data suggest that this strategy may improve early post-transplant disease control, but long-term disease-free survival remains to be determined.


Blood ◽  
2008 ◽  
Vol 112 (11) ◽  
pp. 3272-3272
Author(s):  
Boglarka Gyurkocza ◽  
Thai M. Cao ◽  
Rainer F. Storb ◽  
Thoralf Lange ◽  
Wendy Leisenring ◽  
...  

Abstract We analyzed data from 38 patients (median age = 56, range: 8 – 68 years) with acute leukemia (n=15), chronic idiopathic myelofibrosis (n=6), myelodysplastic syndrome with or without myeloproliferative disorder (n=5), chronic myeloid leukemia (n=4), non- Hodgkin lymphoma (n=4), aplastic anemia (n=2), multiple myeloma (n=1) and renal cell carcinoma (n=1), who underwent salvage allogeneic hematopoietic cell transplantation (HCT) for allograft failure. In 14 cases the original donors were used for second HCT, while in 24 cases different donors were identified (Table 1). Conditioning regimens for first HCTs included total body irradiation (TBI; 2 Gy) with or without fludarabine (Flu; n=28), myeloablative regimens (busulfan-cyclophosphamide, n=6; cyclophosphamide-TBI, n=2); and other, cyclophosphamide-anti-thymocyte globulin-based regimens (n=3). Conditioning for salvage HCT consisted of Flu 30 mg/m2/day on days -4 to -2 followed by TBI of 3 (n=24) or 4 (n=14) Gy on day 0. Cyclosporine and mycophenolate mofetil were used for postgrafting immunosuppression. The median time between first and salvage HCTs was 91 (range, 29 to 1004) days. Sustained second grafts were achieved in 34 patients (89%), while grafts failed in 4 patients (11%), all of whom had idiopathic myelofibrosis. With a median follow-up among surviving patients of 2.0 (range, 0.3 to 7.8) years, the 2 and 4 year Kaplan-Meier survival estimates were 49% (95% CI: 31%, 66%) and 42% (95% CI: 23%, 61%), respectively. The 2 year relapse-rate and non-relapse mortality were 36% (95% CI: 20%, 52%) and 25% (95% CI: 11%, 41%), respectively. The cumulative incidences of grades 2–4 acute and moderate-severe chronic graft-versus-host disease (GVHD) at 2 years were 42% and 41%, respectively. Four patients with chronic GVHD discontinued systemic immunosuppressive therapy at a median of 2.5 years. Within the limitations of the small patient numbers studied, TBI dose (3 vs. 4 Gy), same vs. different donors for salvage HCT, donor type (related, unrelated, HLA-haploidentical related vs. double umbilical cord), and HCT comorbidity scores did not appear to affect outcomes. Based on this retrospective multicenter analysis, we conclude that graft failure following allogeneic HCT can be effectively overcome by second transplantation using conditioning with Flu and low dose TBI (3 or 4 Gy), which should be further investigated in a prospective manner. Table 1. Donors in 1st and 2nd HCTs. HLA-MURD: HLA-matched unrelated donor; HLA-MMURD: HLA-mismatched unrelated donor, UCB: umbilical cord blood. 2nd HCT Different Donor 1st HCT Same Donor HLA-MURD HLA-MMURD Double UCB HLA-haploidentical HLA-identical sibling 11 11 - - - - HLA-MURD 17 3 10 4 - - HLA-MMURD 8 - 1 7 - - Double UCB 2 - - - 1 1


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