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Information on incidence, and factors associated with mortality is a prerequisite to improve outcome after hematopoietic stem cell transplantation (HSCT). Therefore, 55′668 deaths in 114′491 patients with HSCT (83.7% allogeneic) for leukemia were investigated in a landmark analysis for causes of death at day 30 (very early), day 100 (early), at 1 year (intermediate) and at 5 years (late). Mortality from all causes decreased from cohort 1 (1980–2001) to cohort 2 (2002–2015) in all post-transplant phases after autologous HSCT. After allogeneic HSCT, mortality from infections, GVHD, and toxicity decreased up to 1 year, increased at 5 years; deaths from relapse increased in all post-transplant phases. Infections of unknown origin were the main cause of infectious deaths. Lethal bacterial and fungal infections decreased from cohort 1 to cohort 2, not unknown or mixed infections. Infectious deaths were associated with patient-, disease-, donor type, stem cell source, center, and country- related factors. Their impact varied over the post-transplant phases. Transplant centres have successfully managed to reduce death after HSCT in the early and intermediate post-transplant phases, and have identified risk factors. Late post-transplant care could be improved by focus on groups at risk and better identification of infections of “unknown origin”., The study was funded by the European Group for Blood and Marrow Transplantation EBMT

We have measured the electron and hole mobility in blends of poly(2-methoxy-5-(3',7'-dimethyloctyloxy)-p-phenylene vinylene) (MDMO-PPV) and [6,6]-phenyl C-61-butyric acid methyl ester (PCBM) with varying MDMO-PPV/PCBM composition. It is shown that the electron mobility in the PCBM-rich phase gradually increases up to 80 wt.% PCBM, due to an increased number of percolated pathways from bottom to top electrode. In contrast to the expectations the hole mobility in the MDMO-PPV phase shows a similar behavior as a function of fullerene concentration; Starting at 40 wt.% with the value of pristine MDMO-PPV the hole mobility strongly increases and saturates beyond 67 wt.% at a value which is more than two order of magnitude higher. The large enhancement of the hole mobility and its saturation is related to recent findings on the film morphology of this material system.

Allogeneic haematopoietic-cell transplantation (allo-HCT) is a potentially curative therapy for high-risk myelodysplastic syndrome (MDS). Reduced-intensity conditioning (RIC) is usually associated with lower non-relapse mortality (NRM), higher relapse rate and similar overall-survival (OS) as myeloablative-conditioning (MAC). Fludarabine/treosulfan (FT) is a reduced-toxicity regimen with intense anti-leukaemia activity and a favourable toxicity profile. We investigated post-transplant outcomes in 1722 MDS patients following allo-HCT with FT (n=367), RIC (n=687) or MAC (n=668). FT and RIC recipients were older than MAC recipients, median age 59, 59 and 51years, respectively (P&nbsp

The EBMT Chronic Malignancies Working Party performed a retrospective analysis of 215 patients who underwent a second allo-HCT for myeloma between 1994 and 2017, 159 for relapse and 56 for graft failure. In the relapse group, overall survival (OS) was 38% (30–46%) at 2 years and 25% (17–32%) at 5 years. Patients who had a HLA-identical sibling (HLAid-Sib) donor for their first and second transplants had superior OS (5 year OS: HLAid-Sib/HLAid-Sib: 35% (24–46%); Others 9% (0–17%), p p = 0.03). More as opposed to fewer than 2 years between transplants was associated with superior 5-yr OS (31% (21–40%) vs. 10% (1–20%), P = 0.005). On multivariate analysis, consecutive HLA-identical sibling donor transplants conferred a significant OS advantage (0.4 (0.24–0.67), p

Patients with t-MN have a poor prognosis with median overall survival < 1 year due to high risk features of the disease and refractoriness to chemotherapy. HSCT represents the only curative treatment. Outcome after HSCT has progressively improved over time with a last EBMT study showing a 2-year OS at 44% in patients with secondary leukemia (79% post MPN or MDS) (BBMT 2018: 1406). Previous large studies showed survival < 30% in patients transplanted for t-MN (Blood. 2010:1850; Haematologica 2009:542). We recently reported in patients transplanted for a leukemia arising from MDS, MPN and CMML that the primary disease impacts the outcome, particularly patients with a previous MPN had the worst outcome (BJH, 2019: 725). We report here outcome of patients who received HSCT for a t-MN (excluding post MDS, MPN and CMML) with the hypothesis that the primary cancer impacts the outcome. From EBMT registry, patients with MDS or AML occurring after a primary cancer who received a HSCT between 01/06 and 12/16 were included. OS and RFS were analyzed using Kaplan Meier curves and log-rank test, relapse and NRM were analyzed as competing risks with cumulative incidence curves and Gray's test. 2334 patients were identified. Primary cancers were CLL in 102, non-Hodgkin lymphoma (NHL) in 668, Hodgkin lymphoma (HL) in 235, plasma cell disease (PCD) in 111, breast cancer in 643 and other solid tumor (ST) in 575. 981 patients had MDS and 1353 had AML at time of transplantation. Performance status by Karnofsky score was 90 or higher in 1376 (59%) patients. 722 (31%) patients were transplanted from HLA matched sibling donor (SIB) and 843 (36%) received a myelo-ablative conditioning regimen (MAC). 1307 patients were in remission at time of transplantation: 29% of MDS and 76% of AML patients. Three-year OS and RFS were 34 and 32% respectively. OS was significantly better in patients with AML in CR (43%) than not in CR (21%). OS and DFS were impacted by the primary cancer: post NHL (30 and 27%), post HL (29 and 28%), post ST (34% for both), post breast cancer (41 and 37%), post CLL (34 and 31%) and post PCD (32 and 25%) (p The multiple variables models includes age, regimen intensity, donor type, Karnofsky score, t-MN category (AML in CR, AML not in CR, MDS) and the primary type of cancer. Patients with HL (HR: 1.36, p=0.005) or NHL (HR: 1.31, p=0.001) had a higher adjusted risk for OS than patients with other primary diseases. Other risk factors for OS were t-MN type (AML not in CR, HR: 1.45, AML in CR, HR: 0.76, MDS = reference, p Conclusion: A quarter to one third of patients with t-MN can be cured by HSCT which was influenced by type of t-MN and performance status. The type of primary cancer influenced also the outcome with lower mortality, especially NRM in patients with previous solid tumor or PCD as compared to patients with lymphoma. Disclosures Robin: Novartis Neovii: Research Funding. Beelen:Medac GmbH Wedel Germany: Consultancy, Honoraria. Kroeger:DKMS: Research Funding; Neovii: Honoraria, Research Funding; Celgene: Honoraria, Research Funding; Riemser: Research Funding; JAZZ: Honoraria; Sanofi-Aventis: Honoraria; Novartis: Honoraria, Research Funding; Medac: Honoraria. Platzbecker:Celgene: Consultancy, Honoraria, Research Funding; Novartis: Consultancy, Honoraria, Research Funding; Abbvie: Consultancy, Honoraria. Finke:Riemser: Honoraria, Other: research support, Speakers Bureau; Neovii: Honoraria, Other: research support, Speakers Bureau; Medac: Honoraria, Other: research support, Speakers Bureau. Blaise:Pierre Fabre medicaments: Honoraria; Molmed: Consultancy, Honoraria; Sanofi: Honoraria; Jazz Pharmaceuticals: Honoraria. Chevallier:Daiichi Sankyo: Honoraria; Incyte: Consultancy, Honoraria; Jazz Pharmaceuticals: Honoraria.