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Sökning: WFRF:(Lazarevic V)

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  • Johansson, J-E, et al. (författare)
  • Allogeneic haematopoietic stem-cell transplantation with reduced intensity conditioning for advanced stage Hodgkin's lymphoma in Sweden: high incidence of post transplant lymphoproliferative disorder
  • 2011
  • Ingår i: Bone Marrow Transplantation. - : Nature Publishing Group. - 1476-5365 .- 0268-3369. ; 46:6, s. 870-875
  • Tidskriftsartikel (refereegranskat)abstract
    • Allogeneic transplantation after reduced intensity conditioning (allo-RIC) is a treatment option for patients with Hodgkin's lymphoma (HL) relapsing after autologous transplantation. In all, 23 adult patients with HL underwent allo-RIC in Sweden between 2000 and 2007. The median number of previous treatment lines was five and 20 patients (87%) were previously autografted. TRM at 100 days and at 1 year was 13 and 22% respectively. Acute GVHD grades II-IV developed in 7 out of 23 patients (30%) and chronic GVHD in 10 out of 20 patients at risk (50%). The OS and EFS at three years was 59 and 27%, respectively. Four patients (17%) developed post transplant lymphoproliferative disease (PTLD) after a median time of 55 days (range 38-95); two of these patients later died. The study confirmed that allo-RIC is feasible, but associated with a substantial relapse rate: only 20% of the patients were still alive 7 years after the transplant. A finding of high incidence of PTLD needs to be confirmed in a larger trial that includes patients with non-HL and CLL. Bone Marrow Transplantation (2011) 46, 870-875; doi: 10.1038/bmt.2010.238; published online 18 October 2010
  • Lazarevic, Vladimir, et al. (författare)
  • Incidence and prognostic significance of karyotypic subgroups in older patients with acute myeloid leukemia: the Swedish population-based experience.
  • 2014
  • Ingår i: Blood Cancer Journal. - London : Nature Publishing Group. - 2044-5385. ; 4:Feb 28
  • Tidskriftsartikel (refereegranskat)abstract
    • The Swedish population-based acute myeloid leukemia registry contains data from 3251 patients (excluding acute promyelocytic leukemia) diagnosed between 1997 and 2006. Informative cytogenetic data from 1893 patients were retrospectively added, including 1054 patients aged between 60 and 79 years. Clonal abnormalities were found in 57% of the informative karyotypes. Karyotypic patterns differed by age: t(8;21), inv(16) and t(11q23) were more common in younger patients, whereas loss of 5q, 7q and 17p, monosomal karyotype (MK) and complex karyotypes were more common in older patients. Loss of 5q, 7q and 17p often occurred together within MK. Patients with 5 chromosome abnormalities had worse overall survival than those with fewer abnormalities or normal karyotype in all age groups. Loss of 5q, 7q and/or 17p had, in contrast to MK, a further negative impact on survival. Multivariable Cox regression analyses on risk factors in patients <80 years with cytogenetic abnormalities and intensive treatment revealed that age and performance status had the most significant impact on survival (both P<0.001), followed by sex (P=0.0135) and a karyotype including -7/del(7q) (P=0.048).
  • Nahi, Hareth, et al. (författare)
  • An investigation into whether deletions in 9p reflect prognosis in adult precursor B-cell acute lymphoblastic leukemia : a multi-center study of 381 patients
  • 2008
  • Ingår i: Haematologica. - Pavia : Ferrata Storti Foundation. - 1592-8721 .- 0390-6078. ; 93:11, s. 8-1734
  • Tidskriftsartikel (refereegranskat)abstract
    • In acute lymphoblastic leukemia, besides age and white cell count at diagnosis, the cytogenetic abnormalities t(9;22)/BCR-ABL and t(4;11)/MLL-AF4 are important prognostic markers and are often included in the treatment stratification of patients with adult acute lymphoblastic leukemia. Deletions in 9p are seen in about 9% of cases of adult acute lymphoblastic leukemia, but their prognostic impact has been controversial. Cytogenetic data from 381 patients diagnosed with B-precursor acute lymphoblastic leukemia were reviewed. Chromosomal analysis was successful in 240 cases. Of these cases, 18 (8%) had abnormalities in 9p and they were compared with patients with normal karyotypes and patients with t(9;22)/BCR-ABL. Patients with abnormalities of chromosome 9 showed significantly shorter overall survival compared with patients with normal karyotypes. In fact, overall survival was similar to that in the poor prognosis t(9;22)/BCR-ABL-positive group. Our data suggest that chromosomal abnormalities involving 9p may have a significant negative impact on survival in adult B-precursor acute lymphoblastic leukemia.
  • Rosso, A., et al. (författare)
  • Is there an impact of measurable residual disease as assessed by multiparameter flow cytometry on survival of AML patients treated in clinical practice? A population-based study
  • 2021
  • Ingår i: Leukemia and Lymphoma. - : Taylor & Francis. - 1042-8194 .- 1029-2403. ; 62:8
  • Tidskriftsartikel (refereegranskat)abstract
    • The Swedish national guidelines for treatment of acute myeloid leukemia (AML) recommend analysis of measurable residual disease (MRD) by multiparameter flow cytometry (MFC) in bone marrow in the routine clinical setting. The Swedish AML registry contains such MRD data in AML patients diagnosed 2011–2019. Of 327 patients with AML (non-APL) with MRD-results reported in complete remission after two courses of intensive chemotherapy 229 were MRD-negative (70%), as defined by <0.1% cells with leukemia-associated immunophenotype in the bone marrow. MRD-results were reported to clinicians in real time. Multivariate statistical analysis adjusted for known established risk factors did not indicate an association between MFC-MRD and overall survival (HR: 1.00 [95% CI 0.61, 1.63]) with a median follow-up of 2.7 years. Knowledge of the importance of MRD status by clinicians and individualized decisions could have ameliorated the effects of MRD as an independent prognostic factor of overall survival. © 2021 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.
  • Angenendt, Linus, et al. (författare)
  • Chromosomal Abnormalities and Prognosis in NPM1-Mutated Acute Myeloid Leukemia : A Pooled Analysis of Individual Patient Data From Nine International Cohorts
  • 2019
  • Ingår i: Journal of Clinical Oncology. - : AMER SOC CLINICAL ONCOLOGY. - 0732-183X .- 1527-7755. ; 37:29, s. 2632-2642
  • Tidskriftsartikel (refereegranskat)abstract
    • PURPOSE: Nucleophosmin 1 (NPM1) mutations are associated with a favorable prognosis in acute myeloid leukemia (AML) when an internal tandem duplication (ITD) in the fms-related tyrosine kinase 3 gene (FLT3) is absent (FLT3-ITDneg) or present with a low allelic ratio (FLT3-ITDlow). The 2017 European LeukemiaNet guidelines assume this is true regardless of accompanying cytogenetic abnormalities. We investigated the validity of this assumption.METHODS: We analyzed associations between karyotype and outcome in intensively treated patients with NPM1(mut)/FLT3-ITDneg/low AML who were prospectively enrolled in registry databases from nine international study groups or treatment centers.RESULTS: Among 2,426 patients with NPM1(mut)/FLT3-ITDneg/low AML, 2,000 (82.4%) had a normal and 426 (17.6%) had an abnormal karyotype, including 329 patients (13.6%) with intermediate and 83 patients (3.4%) with adverse-risk chromosomal abnormalities. In patients with NPM1(mut)/FLT3-ITDneg/low AML, adverse cytogenetics were associated with lower complete remission rates (87.7%, 86.0%, and 66.3% for normal, aberrant intermediate, and adverse karyotype, respectively; P < .001), inferior 5-year overall (52.4%, 44.8%, 19.5%, respectively; P < .001) and event-free survival (40.6%, 36.0%, 18.1%, respectively; P < .001), and a higher 5-year cumulative incidence of relapse (43.6%, 44.2%, 51.9%, respectively; P = .0012). These associations remained in multivariable mixed-effects regression analyses adjusted for known clinicopathologic risk factors (P < .001 for all end points). In patients with adverse-risk chromosomal aberrations, we found no significant influence of the NPM1 mutational status on outcome.CONCLUSION: Karyotype abnormalities are significantly associated with outcome in NPM1(mut)/FLT3-ITDneg/low AML. When adverse-risk cytogenetics are present, patients with NPM1(mut) share the same unfavorable prognosis as patients with NPM1 wild type and should be classified and treated accordingly. Thus, cytogenetic risk predominates over molecular risk in NPM1(mut)/FLT3-ITDneg/low AML.
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