1.
Post-transplant cyclophosphamide-based graft-versus-host disease prophylaxis in HLA-matched and haploidentical donor transplants for patients with Hodgkin lymphoma: a comparative study of the LWP EBMT.: GVHD prophylaxis for patients with Hodgkin lymphoma
Montoro, J., Boumendil, A., Finel, H., Bramanti, S., Castagna, L., Blaise, D., Dominietto, A., Kulagin, A., Yakoub-Agha, I., Tbakhi, A., et al
Transplantation and cellular therapy. 2023
Abstract
BACKGROUND Post-transplant cyclophosphamide (PTCy) has emerged as a promising approach for preventing graft-versus-host disease (GVHD) in allogeneic hematopoietic stem cell transplantation (allo-HSCT). However, there is a lack of studies examining the impact of this GVHD prophylaxis when different donor types are used in patients with Hodgkin lymphoma (HL). OBJECTIVE To compare the outcomes of patients with HL undergoing HSCT from both HLA-matched donors, which include matched sibling donors (MSD) and matched unrelated donors (MUD), and haploidentical donors, using PTCy as GVHD prophylaxis approach in all cohorts. STUDY DESIGN We retrospectively compared transplant outcomes of allo-HSCT from 166 HLA-matched donors (96 siblings and 70 unrelated) and 694 haploidentical donors using PTCy-based GVHD prophylaxis in patients with HL registered in the EBMT database from 2010 to 2020. RESULTS Haploidentical transplantation showed significantly lower platelet engraftment (86% vs 94%, p<0.001) and higher rates of grades II-IV acute GVHD (24% vs 34%, p=0.01) compared to HLA-matched transplantation. The 2-year cumulative incidence of non-relapse mortality (NRM) was significantly lower in the HLA-matched cohort compared to haploidentical cohort (10% vs 18%, p=0.02), resulting in a higher overall survival (OS) rate (82% vs 70%, p=0.002). There were no significant differences observed in terms of relapse, progression-free survival, or GVHD-free relapse-free survival between the groups. In multivariable analysis, haploidentical transplantation was associated with an increased risk of grades II-IV acute GVHD, NRM, and worse OS compared to HLA-matched transplantation. CONCLUSIONS Our findings suggest that, in the context of PTCy-based GVHD prophylaxis, transplantation from HLA-matched donors appears to be a more favorable option compared to haploidentical transplantation.
2.
Outcomes of advanced Hodgkin lymphoma after umbilical cord blood transplantation: a Eurocord and EBMT Lymphoma and Cellular Therapy & Immunobiology Working Party study
Paviglianiti, A., Maio, K. T., Rocha, V., Gehlkopf, E., Milpied, N., Esquirol, A., Chevallier, P., Blaise, D., Gac, A. C., Leblond, V., et al
Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation. 2018
Abstract
Allogeneic stem cell transplantation is an alternative for patients with relapsed or refractory Hodgkin lymphoma (HL) but only limited data on unrelated umbilical cord blood transplantation (UCBT) are available. We analyzed 131 adults with HL who underwent UCBT in EBMT centers from 2003 to 2015. Disease status at UCBT was complete remission (CR) in 59 (47%) and almost all patients had received a previous autologous stem cell transplantation. The 4-year PFS and OS were 26% (95% CI 19-34%) and 46% (95% CI 37-55%), respectively. Relapse incidence was 44% (95% CI 36-54%) and non-relapse mortality (NRM) was 31% (95% CI 23-40%) at 4 years. In multivariate analysis, refractory/relapsed disease status at UCBT was associated with increased relapse incidence (HR=3.14 [95% CI 1.41-7.00], p=0.005) and NRM (HR=3.61 [95% CI 1.58-8.27], p=0.002), lower PFS (HR=3.45 [95% CI 1.95-6.10], p<0.001) and OS (HR=3.10 [95% CI 1.60-5.99], p=0.001). Conditioning regimen with cyclophospamide+fludarabine+2Gy total body irradiation (Cy+Flu+2 GyTBI) was associated with decreased risk of NRM (HR=0.26 [95% CI 0.10-0.64], p=0.004). Moreover, Cy+Flu+2 GyTBI conditioning regimen was associated with a better OS (HR=0.25 [95% CI 0.12-0.50], p<0.001) and PFS (HR=0.51 [95% CI 0.27-0.96], p=0.04). UCBT is feasible in heavily pretreated patients with HL. The reduced intensity conditioning regimen with Cy+flu+2 GyTBI is associated with a better OS and NRM. However, outcomes are poor in patients not in CR at UCBT.