Conditioning Intensity in Allogeneic Hematopoietic Cell Transplantation (alloHCT) for Diffuse Large B-Cell Lymphoma (DLBCL)

Blood ◽  
2011 ◽  
Vol 118 (21) ◽  
pp. 501-501 ◽  
Author(s):  
Ulrike Bacher ◽  
Evgeny Klyuchnikov ◽  
Jeanette Carreras ◽  
Jennifer Le-Rademacher ◽  
Ginna G. Laport ◽  
...  

Abstract Abstract 501 Non-myeloablative (NMC) and reduced intensity (RIC) conditioning approaches rely primarily on a graft-vs-lymphoma (GVL) effect and aim at reducing transplant-related mortality (TRM) associated with myeloablative conditioning (MAC). We analyzed outcomes for 396 adults (228 male) receiving alloHCT for DLBCL following MAC (n=165), RIC (n=143) or NMC (n=88) regimens between 2000 and 2009 and reported to the Center for International Blood and Marrow Transplant Research (CIBMTR). Conditioning regimens were classified using consensus criteria. Engraftment, cumulative incidences of acute and chronic graft-vs-host disease (GvHD), TRM, progression and probabilities of progression-free (PFS) and overall survival (OS) were compared between MAC and NMC/RIC. Common MAC regimens were cyclophosphamide (CY) + total body irradiation (TBI) (54%) and busulfan (BU) + CY (23%). Common RIC regimens were fludarabine (Flu) with melphalan (44%) or BU (39%) and for NMC, Flu with CY (48%) and low dose TBI (33%). Practice patterns changed with declining use of MAC regimens after 2003 (> 66% of total being MAC pre-2003 and <33% after). Donors were HLA matched siblings in 40%, 26%, 30% of MAC, RIC and NMC recipients, respectively, with 67% overall receiving unrelated donor (URD) grafts. Significant (p <0.05) baseline differences between the cohorts included: RIC and NMC recipients were older (54% and 58% >50 yrs vs 39% for MAC), more likely to have received prior autoHCT (36% and 51% vs 18%), prior radiation and more prior chemotherapy regimens (55 and 70% vs 44% with >3 regimens) than those with MAC. Recipients of RIC and NMC were less likely to have chemotherapy resistant disease (30% and 26% vs. 42% for MAC); and had a longer median interval from diagnosis to alloHCT (median 27 and 36 mo vs. 17 mo). Day 100 engraftment was more frequent in RIC and NMC recipients (99% and 97% with ANC >500/cu.mm vs. 88% for MAC, p <0.001). Acute (43–44%) and chronic GvHD incidence (37–42% at 5 years) was similar across the groups. Outcomes are summarized in Table 1. TRM at day +100 and at 5 years was significantly higher for MAC compared with RIC and NMC groups (See Table 1). Lymphoma relapse/progression at 5 years was significantly lower for MAC vs. RIC and NMC but 5 year PFS and OS at 5-years did not differ significantly. In multivariable analysis, NMC (HR 0.58, p=0.026) and later year of alloHCT (HR 0.49, p<0.001) were associated with lower TRM while Karnofsky status <90 (HR 1.51, p=0.011), chemo-resistant relapse (HR 2.79, p<0.001) and URD (HR 2.32, p<0.001) were associated with higher TRM. Higher incidence of relapse/progression was associated with NMC (HR 2.14, p=0.003), non-receipt of rituximab prior to alloHCT (HR 1.69, p=0.008) and chemo-resistant disease (HR 2.06, p=0.006). Conditioning intensity did not impact OS and PFS. In selected patients with advanced DLBCL, allogeneic HCT can induce long-term PFS irrespective of the intensity of conditioning with a lower incidence of TRM with RIC and NMC regimens. Due to increased toxicity, the use of MAC regimens has been declining in recent years. However, the incidence of RIC/NMC, risk of relapse/progression was concordantly higher in the RIC/NMC recipients so that survival did not differ significantly between conditioning regimens. Further studies are needed to clarify optimal conditioning strategies for advanced DLBCL aiming to further reduce TRM. Table 1: Parameter Intensity of Conditioning (95% CI) p-value MAC RIC NMC TRM @day +100 at 5 yrs 32% (25–39%) 24% (17–31%) 17% (10–26%) 0.029 56% (48–64%) 47% (38–56%) 36% (26–46%) 0.007 Relapse @ 5 yrs 26% (19–33%) 38% (30–46%) 40% (30–50%) 0.031 OS @ 5 yrs 18% (12–25%) 20% (13–29%) 26% (17–36%) 0.365 PFS @ 5 yrs 18% (12–24%) 15% (9–23%) 25% (16–34%) 0.309 Disclosures: Montoto: Genentech: Research Funding; Roche: Honoraria.

2020 ◽  
Vol 38 (18) ◽  
pp. 2062-2076 ◽  
Author(s):  
Rohtesh S. Mehta ◽  
Shernan G. Holtan ◽  
Tao Wang ◽  
Michael T. Hemmer ◽  
Stephen R. Spellman ◽  
...  

PURPOSE There is no consensus on the best choice of an alternative donor (umbilical cord blood [UCB], haploidentical, one-antigen mismatched [7/8]–bone marrow [BM], or 7/8-peripheral blood [PB]) for hematopoietic cell transplantation (HCT) for patients lacking an HLA-matched related or unrelated donor. METHODS We report composite end points of graft-versus-host disease (GVHD)–free relapse-free survival (GRFS) and chronic GVHD (cGVHD)–free relapse-free survival (CRFS) in 2,198 patients who underwent UCB (n = 838), haploidentical (n = 159), 7/8-BM (n = 241), or 7/8-PB (n = 960) HCT. All groups were divided by myeloablative conditioning (MAC) intensity or reduced intensity conditioning (RIC), except haploidentical group in which most received RIC. To account for multiple testing, P < .0071 in multivariable analysis and P < .00025 in direct pairwise comparisons were considered statistically significant. RESULTS In multivariable analysis, haploidentical group had the best GRFS, CRFS, and overall survival (OS). In the direct pairwise comparison of other groups, among those who received MAC, there was no difference in GRFS or CRFS among UCB, 7/8-BM, and 7/8-PB with serotherapy (alemtuzumab or antithymocyte globulin) groups. In contrast, the 7/8-PB without serotherapy group had significantly inferior GRFS, higher cGVHD, and a trend toward worse CRFS (hazard ratio [HR], 1.38; 95% CI, 1.13 to 1.69; P = .002) than the 7/8-BM group and higher cGVHD and trend toward inferior CRFS (HR, 1.36; 95% CI, 1.14 to 1.63; P = .0006) than the UCB group. Among patients with RIC, all groups had significantly inferior GRFS and CRFS compared with the haploidentical group. CONCLUSION Recognizing the limitations of a registry retrospective analysis and the possibility of center selection bias in choosing donors, our data support the use of UCB, 7/8-BM, or 7/8-PB (with serotherapy) grafts for patients undergoing MAC HCT and haploidentical grafts for patients undergoing RIC HCT. The haploidentical group had the best GRFS, CRFS, and OS of all groups.


2020 ◽  
Vol 4 (9) ◽  
pp. 2073-2083 ◽  
Author(s):  
Monzr M. Al Malki ◽  
Dongyun Yang ◽  
Myriam Labopin ◽  
Boris Afanasyev ◽  
Emanuele Angelucci ◽  
...  

Abstract We compared outcomes of 1461 adult patients with acute lymphoblastic leukemia (ALL) receiving hematopoietic cell transplantation (HCT) from a haploidentical (n = 487) or matched unrelated donor (MUD; n = 974) between January 2005 and June 2018. Graft-versus-host disease (GVHD) prophylaxis was posttransplant cyclophosphamide (PTCy), calcineurin inhibitor (CNI), and mycophenolate mofetil (MMF) for haploidentical, and CNI with MMF or methotrexate with/without antithymoglobulin for MUDs. Haploidentical recipients were matched (1:2 ratio) with MUD controls for sex, conditioning intensity, disease stage, Philadelphia-chromosome status, and cytogenetic risk. In the myeloablative setting, day +28 neutrophil recovery was similar between haploidentical (87%) and MUD (88%) (P = .11). Corresponding rates after reduced-intensity conditioning (RIC) were 84% and 88% (P = .47). The 3-month incidence of grade II-IV acute GVHD (aGVHD) and 3-year chronic GVHD (cGVHD) was similar after haploidentical compared with MUD: myeloablative conditioning, 33% vs 34% (P = .46) for aGVHD and 29% vs 31% for cGVHD (P = .58); RIC, 31% vs 30% (P = .06) for aGVHD and 24% vs 29% for cGVHD (P = .86). Among patients receiving myeloablative regimens, 3-year probabilities of overall survival were 44% and 51% with haploidentical and MUD (P = .56). Corresponding rates after RIC were 43% and 42% (P = .6). In this large multicenter case-matched retrospective analysis, despite the limitations of a registry-based study (ie, unavailability of key elements such as minimal residual disease testing), our analysis indicated that outcomes of patients with ALL undergoing HCT from a haploidentical donor were comparable with 8 of 8 MUD transplantations.


Blood ◽  
2010 ◽  
Vol 116 (21) ◽  
pp. 2305-2305 ◽  
Author(s):  
Robert J Soiffer ◽  
Jennifer LeRademacher ◽  
Vincent T Ho ◽  
Fangyu Kan ◽  
Andrew Artz ◽  
...  

Abstract Abstract 2305 HCT using RIC regimens has increased steadily over the past decade. In vivo administration of anti-T cell antibodies, such as alemtuzumab and anti-thymocyte globulin (ATG) preparations, is often employed to promote engraftment and limit graft-versus-host disease (GVHD). While these antibodies might reduce the severity and incidence of GVHD, they may also blunt the allo-immune graft-versus-tumor effect of HCT. Transplant outcomes after in vivo T-cell depletion (n=584 ATG; n=213 alemtuzumab) were compared to those after T-cell replete (n=879) RIC transplants for myeloid and lymphoid malignancies. Patients were aged 21–69 yrs and transplanted from 2000–2007. Median follow-up of patients is 3 years. Conditioning regimens consisted of an alkylating agent (melphalan, busulfan, or cyclophosphamide) with fludarabine. 792 patients (47%) received allografts from a HLA-matched sibling, 650 (39%) from an 8/8 and 234 (14%) from a 7/8 HLA-matched unrelated donor. In vivo T-cell depletion was used for 35% of matched sibling HCT, 57% of 8/8 and 64% of 7/8 HLA matched unrelated donor HCT. Results of multivariable analysis adjusted for age, disease and disease stage, donor, year of transplant, conditioning regimen, and GVHD prophylaxis are shown in Table below. Grade 2–4 acute GVHD was lower with alemtuzumab containing regimens (20%) than ATG containing (41%) or T replete (42%) regimens. Chronic GVHD occurred in 27% of recipients of alemtuzumab, 43% of ATG, and 57% of T replete regimens, respectively. Compared to T-cell replete regimens, relapse risks were higher with ATG and alemtuzumab containing regimens (38%, 49% and 51%, respectively) and non-relapse mortality, higher with ATG containing regimens only. Treatment failure (relapse or death) was higher with both ATG and alemtuzumab containing regimens compared to T replete regimens. Overall mortality was highest with ATG containing regimens. These observations are independent of disease, disease status and donor type including 7/8 HLA-matched HCT. The 3-year probabilities of disease-free survival (DFS) were 25%, 30% and 39% with ATG-containing, alemtuzumab-containing and T-cell replete regimens, respectively. Corresponding probabilities for overall survival were 38%, 50% and 46%. There were no differences in disease-free and overall survival at 3-years by ATG source or dose. The incidence of EBV-PTLD was higher with alemtuzumab and ATG containing compared to T-cell replete regimens (2% vs. 2% vs. 0.2%). These results suggest in-vivo T-cell depletion with RIC regimens containing an alkylating agent and fludarabine significantly lowers DFS despite lower GVHD. The routine use of in-vivo T-cell depletion in this setting warrants a cautious approach in the absence of a prospective randomized trial. Alemtuzumab vs. T-cell replete ATG vs. T-cell replete Alemtuzumab vs. ATG Hazard ratio, p-value Hazard ratio, p-value Hazard ratio, p-value Grade 2-4 acute GVHD 0.33, p<0.0001 0.88, p=0.12 0.38, p<0.001 Grade 3-4 acute GVHD 0.42, p<0.0001 0.86, p=0.20 0.48, p=0.001 Chronic GVHD 0.34, p<0.0001 0.69, p<0.0001 0.49, p<0.0001 Non-relapse mortality 1.04, p=0.85 1.34, p=0.01 0.78, p=0.19 Relapse 1.54, p=0.0001 1.53, p<0.0001 1.01, p=0.94 Treatment failure 1.40, p=0.0003 1.46, p<0.0001 0.96, p=0.67 Overall mortality 1.09, p=0.46 1.25, p=0.002 0.87, p=0.22 Disclosures: No relevant conflicts of interest to declare.


Blood ◽  
2013 ◽  
Vol 122 (21) ◽  
pp. 547-547 ◽  
Author(s):  
John Koreth ◽  
Kwang Woo Ahn ◽  
Joseph Pidala ◽  
James L. Gajewski ◽  
Hailin Wang ◽  
...  

Abstract In myeloablative unrelated donor allogeneic hematopoietic cell transplantation (HCT) a 1-locus HLA-mismatch (-A, -B, -C, -DRB1) is associated with lower survival compared to fully matched pairs. However data in reduced-intensity and non-myeloablative conditioning (together called RIC) HCT are limited. We analyzed adult AML/ALL/CML/MDS recipients of first 8/8 HLA-matched or 1-locus mismatched unrelated donor (MUD, MMUD) RIC HCT performed in the period 1999-2011 and registered in the CIBMTR. HLA-A, -B, -C and -DRB1 loci were typed in all pairs at high resolution; -DQB1 and -DPB1 loci could not be evaluated in all pairs. Transplants involving ex-vivo T-cell depletion, CD34+ selection, or post-transplant cyclophosphamide were excluded. Overall survival (OS) was the primary outcome. Secondary outcomes included non-relapse mortality (NRM), relapse, disease-free survival (DFS) and acute and chronic GVHD. Individual locus mismatch was also assessed. Apart from HLA matching, variables related to patient (age, race, sex, KPS, diagnosis, disease-risk), donor (age, parity), both (sex match/ABO match/CMV match) treatment (conditioning intensity, TBI use, in-vivo T-cell depletion (ATG), graft source (PB, BM) and GVHD prophylaxis (CyA-, Tac-based)) were considered. 2588 RIC HCT (8/8 MUD: 2025; 7/8 MMUD: 563) from 144 centers and 12 countries were analyzed. Median follow up in 8/8 MUD and 7/8 MMUD was 38 and 48 months respectively. Diagnoses were AML (65%), ALL (8%), CML (7%), MDS (20%). Conditioning intensity was RIC (79%), NMA (21%). 58% received in-vivo T-cell depletion. Graft source was PBSC (85%), BM (15%). GVHD prophylaxis was Tac-based (70%), CyA-based (27%). Mismatches involved HLA-A (188), -B (81), -C (219), and -DRB1 (75); with -DPB1 and -DQB1 typing available in 1382 and 2502 cases respectively. Compared to 8/8 MUD, 7/8 MMUD recipients were more likely to be younger and ethnic minorities and to have older and parous donors. In univariate analyses DQB1- and -DPB1 mismatch was not associated with worse OS, DFS, or NRM and was not further evaluated. There was a trend toward more grade II-IV acute GVHD in -DPB1 double (p=0.02) but not single mismatches. In multivariate models 7/8 MMUD RIC HCT had worse grade II-IV and III-IV acute GVHD, NRM, DFS and OS, but not relapse or chronic GVHD (Table). No significant interactions were identified between degree of HLA matching and other clinical variables. Adjusted 1- and 3-year NRM for 8/8 MUD vs. 7/8 MMUD was 20.4% vs. 28.9% (p<0.0001) and 29.2% vs. 38.1% (p<0.0007) respectively. Adjusted 1- and 3-year OS was 54.7% vs. 48.8% (p=0.01) and 37.4% vs. 30.9% (p=0.005) respectively (Figure). There was no difference between allele and antigen mismatches. HLA-A, -B, -C, and -DRB1 locus mismatches were each associated with 1 or more impaired outcomes (acute GVHD, NRM, DFS, and/or OS). Table 1 7/8 vs. 8/8 HLA HR (95% CI) p-value Acute GVHD II-IV 1.29 (1.09-1.53) 0.003 Acute GVHD III-IV 1.69 (1.00-3.36) 0.05 Chronic GVHD 1.11 (0.96-1.28) 0.15 Relapse 1.01 (0.87-1.17) 0.92 NRM 1.52 (1.29-1.79) <0.0001 DFS 1.20 (1.07-1.34) 0.0015 OS 1.25 (1.11-1.40) 0.0001 Compared to 8/8 MUD, both 7/8 allele and antigen MMUD RIC HCT have greater treatment toxicity and worse survival, of a magnitude similar to that seen in myeloablative transplantation. An isolated mismatch at HLA-A, -B, -C, or -DRB1 was associated with 1 or more adverse outcomes. In unrelated donor RIC HCT, matching for all alleles of HLA-A, -B, -C and -DRB1 loci results in superior outcomes. Disclosures: No relevant conflicts of interest to declare.


Blood ◽  
2009 ◽  
Vol 114 (22) ◽  
pp. 3324-3324
Author(s):  
Yasser Khaled ◽  
Sung Choi ◽  
David A Hanauer ◽  
Pavan Reddy

Abstract Abstract 3324 Poster Board III-212 The NIH Consensus recognizes nephrotic syndrome (NS) as part of the chronic GVHD symptomatology, but this manifestation is rare and the incidence and outcomes have not been well-defined. To characterize this complication, we conducted an IRB-approved retrospective review of 626 consecutive patients (age > 16 yrs: related donor [RD], n=352; unrelated donor [URD], n=274) who underwent allogeneic hematopoietic cell transplantation (HCT) between October 2000 and December 2007 at the University of Michigan. Data abstraction was facilitated by the use of an electronic medical record search engine (EMERSE) that allowed for efficient identification of key concepts based on a specified set of key words and phrases (e.g. “GVHD,” “proteinuria,” and “nephrotic syndrome”). Conditioning regimens included full intensity (FIC) in 470 patients and reduced intensity (RIC) in 156 patients. Nephrotic range proteinuria was identified in 17 of the patients, which is the largest cohort reported to date following allogeneic HCT. Renal biopsy confirmed the diagnosis in seven of these patients. The median time to onset of NS was 7.3 months (range 1.4 – 40.6 months) following allogeneic HCT. Clinical manifestations included hypoalbuminemia (100%), hypercholesterolemia (82%), edema (76%), renal impairment (65%), and thrombosis (29%). The overall cumulative incidence of NS was 2.9%: 2.4% in FIC and 4.6% in RIC HCT recipients; and 2.3% in RD and 3.7% URD HCT recipients. Of note, in patients who received irradiation-based conditioning regimens, there was an increased cumulative incidence of NS compared to those who did not, 4.8% versus 2.1%, respectively. Diagnostic symptoms of chronic GVHD based upon the NIH Consensus was seen in 65% (n=11) of the patients, all of whom were on immunosuppressive therapy at the time of diagnosis of NS. Prior history of acute GVHD was seen in 65% (n=11) of the patients. Interestingly, history of symptomatic cystitis was seen in 53% (n=9) of the patients, eight of whom had BK virus detected in the urine. The management and treatment for NS was variable. All of the patients received systemic steroids (0.25 mg/kg – 2 mg/kg), with or without mycophenolate mofetil and a calcineurin inhibitor. Additional therapy with rituximab was administered in nine patients. Durable remission with no further recurrence of proteinuria was observed in 47% of the patients (n=8). The median time to response was 4.8 months (range 0.3 – 13.5 months). Recurrence of proteinuria was seen in 29% of the patients (n=5), and primary refractory proteinuria was observed in 23% of the patients (n=4). Overall survival for the cohort was 49.5% at 4 years (confidence interval 24% - 75%) with median follow up of 5.1 years. The median survival from diagnosis of NS was 2.5 years. As of May 2009, eight patients are alive and nine have died. The causes of death include GVHD (n=6), relapse (n=2) and unknown (n=1). NS is a rare but important complication following allogeneic HCT. Early recognition of the clinical presentations and identification of high-risk groups may limit the potential morbidity and mortality associated with NS. Patient MUD/MRD PB vs BM Age at TP Conditioning Regimen DX Proteinuria estimate (g/24h) Gender GVHD Regimen Kidney Biopsy 1 MUD PB 53 FluBuTLI MPD 5.5 F Tacro/MTX Minimal change GN 2 MUD PB 56 FluBuTLI MM 14 M Tacro/MTX Membranous GN 3 MRD PB 57 BuCy MDS 14 M Tacro/MTX Membranous GN 4 MUD PB 55 BAC AML 3.4 M Tacro/MTX N/A 5 MRD PB 30 CVB NHL 3.74 M Tacro/MTX Membranous GN 6 MRD PB 47 BAC AML 10 M Tacro/MTX Membranous GN 7 MUD PB 49 FluBuTLI NHL 6.9 M Tacro/MMF N/A 8 MUD PB 38 BuCy AML 8.7 F Tacro/MMF N/A 9 MUD BM 18 CyATG Aplastic Anemia 4.22 F Tacro/MTX N/A 10 MRD PB 34 BAC AML 5.96 F Tacro/MTX N/A 11 MUD PB 61 FluBuTLI MDS 13.27 M Tacro/MTX N/A 12 MRD PB 26 BuCy CMML 3.58 F Tacro/MMF N/A 13 MRD PB 63 FluBuTLI NHL 4.54 F Tacro/MMF/MTX N/A 14 MUD PB 55 BuCy AML 22.57 M Tacro/MTX/Etanercept Minimal change GN 15 MRD PB 59 CVB-R NHL 3.37 M Tacro/MMF N/A 16 MRD PB 62 FluBuTLI AML 5.47 F Tacro/MMF/MTX Membranous GN 17 MUD PB 46 CyTBI AML 7.96 F Tacro/MTX/Etanercept N/A MUD = matched unrelated donor; MRD = matched related donor; PB = peripheral blood; BM = bone marrow; GN = glomerulonephritis; N/A = non applicable; MTX = methotrexate; MMF = mycophenolate mofetil; FluBuTLI = Fludarabine, Busulfan, Total Lymphoid Irradiation; BuCy = Busulfan, Cytoxan; BAC = Busulfan, Ara-C, Cytoxan; CVB = Cytoxan, Etoposide, BCNU; CyATG = Cytoxan, ATG Disclosures Hanauer: UMERSE, LLC: Consultancy, Patents & Royalties.


2019 ◽  
Vol 3 (3) ◽  
pp. 360-369 ◽  
Author(s):  
Peter Dreger ◽  
Anna Sureda ◽  
Kwang Woo Ahn ◽  
Mary Eapen ◽  
Carlos Litovich ◽  
...  

Abstract This study retrospectively compared long-term outcomes of nonmyeloablative/reduced intensity conditioning (NMC/RIC) allogeneic hematopoietic cell transplantation (allo-HCT) from a haploidentical family donor (haplo-HCT) using posttransplant cyclophosphamide (PTCy) with those of matched sibling donor (MSD) and matched unrelated donor (MUD) with or without T-cell depletion (TCD+/TCD−) in patients with relapsed diffuse large B-cell lymphoma (DLBCL). Adult patients with DLBCL who had undergone their first NMC/RIC allo-HCT between 2008 and 2015 were included. Recipients of haplo-HCT were limited to those receiving graft-versus-host disease (GVHD) prophylaxis with PTCy. GVHD prophylaxis in MSD was limited to calcineurin inhibitor (CNI)–based approaches without in vivo TCD, while MUD recipients received CNI-based prophylaxis with or without TCD. Outcome analyses for overall survival (OS) and progression-free survival (PFS), nonrelapse mortality (NRM), and disease relapse/progression were calculated. A total of 1438 patients (haplo, 132; MSD, 525; MUD TCD+, 403; and MUD TCD−, 378) were included. Patients with haplo donors were significantly older, had a better performance status and had more frequently received total body irradiation-based conditioning regimens and bone marrow grafts than MSD and MUD TCD+ or TCD−. 3-year OS, PFS, NRM and relapse/progression incidence after haplo-HCT was 46%, 38%, 22%, and 41%, respectively, and not significantly different from outcomes of matched donor transplants on multivariate analyses. Haplo-HCT was associated with a lower cumulative incidence of chronic GVHD compared with MSD, MUD TCD+/TCD−. NMC/RIC haplo-HCT with PTCy seems to be a valuable alternative for patients with DLBCL considered for allo-HCT but lacking a matched donor.


Blood ◽  
2006 ◽  
Vol 108 (11) ◽  
pp. 3034-3034 ◽  
Author(s):  
Larry D. Anderson ◽  
Brenda M. Sandmaier ◽  
Michael B. Maris ◽  
Dietger Niederwieser ◽  
Edward Agura ◽  
...  

Abstract While toxicities and transplant related mortality (TRM) have limited the use of conventional allogeneic HCT to younger patients (pts) without significant medical comorbidities, WM is a disease that affects primarily older pts with a median age of 63 years at diagnosis. Here we examined the safety and efficacy of nonmyeloablative (NM) HCT for patients with refractory WM, where anti-tumor effects are provided by graft-versus-tumor immune responses rather than from conditioning therapy. Twelve pts with refractory WM were treated within the institutions of the Seattle Consortium using HLA-matched related donor (n=7) or unrelated donor (URD) (n=5) HCT. NM conditioning consisted of 2 Gy TBI with (n=8) or without (n=4) fludarabine (30 mg/m2/day x 3 days). Eleven pts received unmodified G-CSF-mobilized peripheral blood mononuclear cells, and 1 pt received URD bone marrow. Post-grafting immunosuppression consisted of mycophenolate mofetil and either cyclosporine or tacrolimus. The median age was 58 (range 44–65) years and median time from diagnosis to allogeneic HCT was 6.6 (range 1.5–20) years. Pts had received a median of 4.5 (2–8) prior regimens. The median follow-up after HCT was 14 (range 1–85) months overall, and median follow-up for surviving pts (n=7) was 17 (range 4–85) months. All pts except 1 have stably engrafted with &gt;95% donor CD3+ T cell chimerism. Acute GVHD grades II, III, IV, and extensive chronic GVHD occurred in 50%, 8%, 0%, and 58% of pts, respectively. TRM was 17%. Responses (4 CR and 6 PR) were seen in 10 of 11 (91%) evaluable pts while 1 had progressive disease. The non-evaluable pt died from early non-relapse causes. The median time to CR was 12 (6–32) months for the 4 CR pts, and 1 of the PR patients still has a declining IgM at 10 months. Only 1 of the 10 responders has had WM progression, though 1 pt in CR died from relapsed diffuse large B-cell lymphoma (DLBCL) 16 months after allografting despite no longer having a monoclonal IgM spike. This pt had been allografted in tandem following an auto transplant with BEAM conditioning for transformation of WM to DLBCL. Of the 7 sibling transplants, all had a response (3 CR and 4 PR). Of 5 pts receiving URD allografts, 1 had a CR, 2 had a PR, 1 was not evaluable due to TRM on day 29, and 1 pt failed to respond and died of progressive IgM myeloma 12 months after HCT. One pt with a PR had heavily pretreated disease (pancytopenic pre-HCT) and died of host-derived AML 10 months after HCT. The Kaplan-Meier estimates of 5 year overall and progression free survival were 59% and 61%, respectively. In summary, graft-versus-tumor effects that develop slowly following NM allogeneic HCT have been observed in the majority of pts with refractory WM. These graft-versus-WM effects occurred in the absence of serious GVHD and with low TRM. NM allogeneic HCT provides a new treatment option for WM pts and may result in long-term disease control. Figure Figure


Blood ◽  
2006 ◽  
Vol 108 (11) ◽  
pp. 3146-3146 ◽  
Author(s):  
Thai M. Cao ◽  
Schickwann Tsai ◽  
Linda Kelley ◽  
Stephen C. Alder ◽  
Thomas C. Fuller ◽  
...  

Abstract Comprehensive analyses of unrelated donor (URD) and recipient HLA-matching for allogeneic hematopoietic cell transplantation (AHCT) have demonstrated better outcomes when allele typing is performed using high-resolution nucleotide sequence-based techniques. To evaluate survival following myeloablative AHCT using allele-level HLA-matched URD as compared with HLA-identical sibling donors, we analyzed outcomes for 430 patients treated at our center between March 1991 and April 2005. Sequence-based allele typing was retrospectively performed for HLA-A, B, C, DR and DQ when not done at time of AHCT for URD (n = 124; 29%) and non-sibling related donors (n = 19; 4%). Donors were HLA-identical siblings (n = 276; 64%), HLA allele-matched URD (n = 52; 12%), single HLA-locus mismatched donors (n = 52; 12%), or > 1 locus mismatched donors (n = 50; 12%). The median age at transplant was 23.4 years (range: 0.2 – 61). The most common diagnoses were AML (n = 107; 25%), CML (n = 90; 21%), ALL (n = 86; 20%) and MDS (n = 50; 12%). Total body irradiation-based preparative regimens were used for 283 patients (66%). Bone marrow (BM) was the graft for 388 patients (90%) and GCSF-mobilized peripheral blood stem cells (PBSC) for the remaining 42 (10%). Graft-versus-host disease (GVHD) prophylaxes were cyclosporine and methotrexate (n = 327; 76%), long methotrexate (n = 42; 10%), T-cell depletion (n = 19; 4%), or other regimens (n = 42; 10%). With a median follow-up of 4.8 years (range: 0.2 – 12.1), the 5-year estimate of overall survival (OS) for the entire group was 48.2% (95% CI: 45.7 – 50.7) and transplant-related mortality (TRM) was 31.4% (95% CI: 28.8 – 34). As shown in the Table, OS and TRM were indistinguishable between AHCT performed with HLA-identical siblings compared with HLA allele-matched URD. There was also no difference in grade III – IV acute GVHD (P = .46) between these two groups whereas there was a trend towards more extensive chronic GVHD (HR 1.8; 95% CI: 0.9 – 3.6; P = 0.12) for the URD recipients. Using a multivariate analysis to adjust for advanced disease, age (> vs ≤ 30 years), graft (BM vs PBSC) and female-to-male gender mismatch, there remained no difference in OS between HLA-identical siblings and HLA allele-matched URD (P = 0.67). These results demonstrate that key outcomes (OS, TRM, and severe acute GVHD) are equivalent in recipients of grafts from either allele-level 10/10 HLA-matched URD or HLA-identical siblings. Overall Survival TRM Number Hazard Ratio 95% CI P value Hazard Ratio95% CI P value HLA-ID Sibling 276 1 - - 1 - - HLA-ID URD 52 1.1 0.7 – 1.7 0.67 0.8 0.4 – 1.6 0.58 1 Locus MM 52 1.3 0.9 – 2.0 0.19 1.4 0.8 – 2.4 0.25 > 1 Locus MM 50 2.0 1.4 – 2.9 < 0.001 2.6 1.7 – 4.1 < 0.001


Blood ◽  
2010 ◽  
Vol 116 (21) ◽  
pp. 364-364 ◽  
Author(s):  
Mary Jo Lechowicz ◽  
Manza Agovi ◽  
Jeanette Carreras ◽  
Hillard M. Lazarus ◽  
Ginna G. Laport ◽  
...  

Abstract Abstract 364 Patients (pts) with advanced stage CTCL have a poor prognosis with standard therapy whereas AHCT possibly is curative. Published experience with AHCT for CTCL is modest. We report the outcomes of a large cohort of CTCL pts receiving AHCT (N=133) reported to the CIBMTR from 2000–2009. The majority of pts 129 (97%) were diagnosed with Mycosis Fungoides or Sezary Syndrome. Only 8 (6%) received AHCT in a complete remission (CR) while 46 pts (35%) never achieved CR pre-AHCT. Most pts (83%) were transplanted beyond 12 months from diagnosis. Median (range) time from diagnosis to transplant is 29 (4-206) months. Peripheral blood was the main graft source (83% vs. 14% marrow and 3% cord blood). Donor types included: 66 HLA-identical siblings (50%), 56 unrelated donors (42%), 11 from other related donors (8%). Reduced intensity conditioning (RIC) was used in 64%. Recipients of RIC were on average older (median age 51 vs. 44 yr for myeloablative) and transplanted in later study years. Among the myeloablative regimens, cyclophosphamide with total body irradiation was the most common (38%) whereas among RIC, fludarabine in combination with busulfan, cyclophosphamide or melphalan was used in 50%. GVHD prophylaxis regimens varied. Overall mortality at 30 and 100 days was 7% and 16%, respectively. Overall survival at 6 mo and 2 yr was 75% (95% CI 67–82%) and 44% (95% CI 34–53%), respectively. Conditioning intensity was not different statistically for the overall survival of these pts (figure 1). Treatment related mortality (TRM) at 6 mo and 2 yr was 10% (95% CI 5–17%). Progression/relapse of CTCL was 44% (95% CI 34–54%) at 6 mo and 58% (95% CI 47–68%) at 2 yr. Progression free survival at 6 mo was 46% (95% CI 36–57%) and at 2 yr 32% (95% CI 23–42%). The incidence of grade II-IV acute GVHD was 36% (95% CI 22–50%) and of chronic GVHD 31% (95% CI 19–45%) in a subset of reported pts. Infection as a cause of death does not seem to be increased in CTCL transplanted pts. Conditioning intensity did not impact TRM or the risk of progression. This very large series of allogeneic HCT demonstrates feasibility in pts with advanced CTCL with a low TRM and long term progression free survival in approximately one third of pts. Progressive disease was the primary cause of treatment failure in this cohort of pts with advanced disease. Figure 1. Figure 1. Disclosures: No relevant conflicts of interest to declare.


2021 ◽  
Vol 5 (4) ◽  
pp. 975-983
Author(s):  
Michael R. Grunwald ◽  
Mei-Jie Zhang ◽  
Hany Elmariah ◽  
Mariam H. Johnson ◽  
Andrew St. Martin ◽  
...  

Abstract We compared outcomes in 603 patients with myelodysplastic syndrome (MDS) after HLA-haploidentical relative (n = 176) and HLA-matched unrelated (n = 427) donor hematopoietic cell transplantation (HCT) from 2012 to 2017, using the Center for International Blood and Marrow Transplant Research database. All transplantations used reduced-intensity conditioning regimens. Total-body irradiation plus cyclophosphamide and fludarabine was the predominant regimen for HLA-haploidentical relative donor HCT, and graft-versus-host disease (GVHD) prophylaxis was uniformly posttransplantation cyclophosphamide, calcineurin inhibitor, and mycophenolate. Fludarabine with busulfan or melphalan was the predominant regimen for HLA-matched unrelated donor HCT, and GVHD prophylaxis was calcineurin inhibitor with mycophenolate or methotrexate. Results of multivariate analysis revealed higher relapse (hazard ratio [HR], 1.56; P = .0055; 2-year relapse rate, 48% vs 33%) and lower disease-free survival (DFS) rates after HLA-haploidentical relative donor HCT (HR, 1.29; P = .042; 2-year DFS, 29% vs 36%). However, overall survival (OS) rates did not differ between donor type (HR, 0.94; P = .65; 2-year OS, 46% for HLA-haploidentical and 44% for HLA-matched unrelated donor HCT) because of mortality associated with chronic GVHD. Acute grade 2 to 4 GVHD (HR, 0.44; P &lt; .0001) and chronic GVHD (HR, 0.36; P &lt; .0001) were lower after HLA-haploidentical relative donor HCT. By 2 years, probability of death resulting from chronic GVHD was lower after HLA-haploidentical relative compared with HLA-matched unrelated donor HCT (6% vs 21%), negating any potential survival advantage from better relapse control. Both donor types extend access to transplantation for patients with MDS; strategies for better relapse control are desirable for HLA-haploidentical relative donor HCT, and effective GVHD prophylaxis regimens are needed for unrelated donor HCT.


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