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Sökning: WFRF:(Relander Thomas)

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21.
  • Ellin, Fredrik, et al. (författare)
  • Impact of comorbidity on survival in peripheral T-cell lymphomas : A Swedish Lymphoma Registry study
  • 2018
  • Ingår i: Hematological Oncology. - : Wiley. - 0278-0232. ; 36:1, s. 159-165
  • Tidskriftsartikel (refereegranskat)abstract
    • Comorbidity impacts survival in B-cell lymphoma patients, but the influence in peripheral T-cell lymphomas (PTCLs) has been little studied. To investigate the impact of comorbidity on outcome in PTCL, we identified adult patients with newly diagnosed PTCL from 2000 to 2009 in the Swedish Lymphoma Registry. Data on comorbidity at diagnosis were retrospectively collected according to the Charlson Comorbidity Index (CCI). Comorbid conditions were present in 263 out of 694 (38%) patients. A CCI score of ≥2 was associated with inferior overall survival (OS) (hazard ratio [HR] 1.63, P < .001) and progression-free survival (HR 1.54, P < .001) in multivariate analysis. In patients undergoing front-line autologous stem cell transplantation (auto SCT), CCI >0 was associated with inferior OS (HR 2.40, P = .013). Chemotherapy regimens were classified as curative or low-intensity treatments. Among patients aged ≥75 years (n = 214), low-intensity and curative treatment groups had similar OS (HR 0.8, P = .6), also when adjusted for CCI. In summary, our results demonstrate CCI to be independently associated with survival in PTCLs. Even limited comorbidity impacted survival after front-line auto SCT, which needs to be considered in treatment decisions. Intensive anthracycline-based chemotherapy in elderly PTCL patients might be of limited benefit.
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22.
  • Ellin, Fredrik, et al. (författare)
  • Real world data on prognostic factors and treatment in peripheral T-cell lymphomas: a study from the Swedish Lymphoma Registry.
  • 2014
  • Ingår i: Blood. - : American Society of Hematology. - 1528-0020 .- 0006-4971. ; 124:10, s. 1570-1577
  • Tidskriftsartikel (refereegranskat)abstract
    • Peripheral T-cell Lymphomas (PTCLs) are rare lymphomas with mostly poor outcome with current treatment. Addition of etoposide to CHOP and up-front consolidation with autologous stem cell transplantation (autoSCT) have shown promising results, but have never been tested in randomized trials. As a complement to retrospective analyses of clinical trials, we aimed at analyzing prognostic factors and outcome in an unselected, population-based cohort. Through the Swedish Lymphoma Registry we identified 755 PTCL patients diagnosed during a 10-year period. In addition to International Prognostic Index (IPI) factors, male gender was associated with an adverse overall survival (OS) (HR 1.28, p=0.011) and progression-free survival (PFS) (HR 1.26, p=0.014). In an intention-to-treat analysis in 252 nodal PTCL and EATL patients (excluding ALK-positive ALCL), up-front autoSCT was associated with a superior OS (HR 0.58, p=0.004) and PFS (HR 0.56, p=0.002) compared to patients treated without autoSCT. Addition of etoposide to CHOP resulted in superior PFS in patients up to 60 years (HR 0.49, p=0.008). This study is the largest population-based PTCL cohort reported so far and provides important information on outcome in PTCL outside the setting of clinical trials.
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23.
  • Ellin, Fredrik, et al. (författare)
  • Treatment outcome in T-cell lymphoblastic lymphoma in adults : a population-based study from the Swedish Lymphoma Registry
  • 2014
  • Ingår i: Acta Oncologica. - 0284-186X .- 1651-226X. ; 53:7, s. 927-934
  • Tidskriftsartikel (refereegranskat)abstract
    • Background. T-cell lymphoblastic lymphoma (T-LBL) is a rare neoplasm of precursor lymphoblast origin, for which there is no standard treatment for adults. Results of current treatment strategies in selected populations do exist but are largely unreported for unselected series. Here, we aimed to investigate treatment outcome in a population-based cohort. Material and methods. Patients were identified through the Swedish Lymphoma Registry and data was retrospectively collected for all adult (>= 18 years) Swedish T-LBL patients diagnosed during 2000-2009. Results. A total of 39 patients with median age 40 years (range 18-78) were identified with females being significantly older than males (median age 66 vs. 37, p = 0.027). The five-year overall survival for all patients was 42%. Female gender was associated with shorter survival also when adjusted for treatment strategy and age [hazard ratio (HR) 4.29; p = 0.002]. Thirty patients received intensive chemotherapy, otherwise used for treatment of acute lymphoblastic leukemia (ALL), which resulted in an overall response rate of 97% and a five-year progression-free survival (PFS) of 49%. In this group only CNS involvement at diagnosis predicted shorter PFS (HR 13.3; p = 0.03). Among patients treated with hyper-CVAD the addition of mediastinal irradiation resulted in prolonged time to progression compared to patients receiving only chemotherapy (p = 0.047). The major reason for treatment failure was relapse and in this series 18-fluoro-deoxyglucose positron emission tomography (PET) did not predict this risk. Conclusion. This population-based study indicates that all fit T-LBL patients should be considered for intensive treatment. Our results also suggest a beneficial effect of mediastinal irradiation in combination with hyper-CVAD treatment. Relapsing patients have a dismal outcome irrespective of salvage treatment.
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25.
  • Kasteng, Frida, et al. (författare)
  • Cost-effectiveness of maintenance rituximab treatment after second line therapy in patients with follicular lymphoma in Sweden
  • 2008
  • Ingår i: Acta Oncologica. - : Informa UK Limited. - 0284-186X .- 1651-226X. ; 47:6, s. 1029-36
  • Tidskriftsartikel (refereegranskat)abstract
    • INTRODUCTION: Rituximab has significantly improved the prognosis for patients with both indolent and aggressive non-Hodgkin's lymphoma. An economic evaluation was carried out to assess the cost-effectiveness in Sweden of rituximab as maintenance therapy for patients with follicular lymphoma in remission after second line therapy. MATERIALS AND METHODS: The incremental cost and effectiveness of rituximab maintenance therapy versus observation were evaluated in a health-state transition model. Primary effect measures were quality-adjusted life-years (QALY) and life-years gained (LYG). Model state transitions were calculated based on progression-free and overall survival data from the EORTC20981 trial. The analysis was made from the perspective of the healthcare provider, including direct medical costs presented in euro, 2007 value. Effects and costs were discounted at a 3% annual rate. The stability of the base case results were tested in one-way and probabilistic sensitivity analyses. RESULTS: The evaluation assessed rituximab maintenance therapy to be associated with an incremental cost per QALY gained of euro 12,600 and an incremental cost per LYG of euro 11,200. The average discounted life expectancy for patients on rituximab maintenance was 1.0 year longer than for patients on observation (5.96 vs. 4.94 years). Rituximab maintenance was associated with an additional 0.9 QALY, and total costs per patient were euro 11,500 higher in the treatment arm, compared to observation. DISCUSSION: The results indicate that rituximab maintenance treatment after successful induction therapy for patients with relapsed/refractory follicular lymphoma in Sweden is cost-effective compared to observation.
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26.
  • Maurer, Matthew J., et al. (författare)
  • International Assessment of Event-Free Survival at 24 Months and Subsequent Survival in Peripheral T-Cell Lymphoma
  • 2017
  • Ingår i: Journal of Clinical Oncology. - 0732-183X. ; 35:36, s. 4019-
  • Tidskriftsartikel (refereegranskat)abstract
    • Purpose Peripheral T-cell lymphomas (PTCLs) have aggressive clinical behavior. We have previously shown that event-free survival (EFS) at 24 months (EFS24) is a clinically useful end point in diffuse large B-cell lymphoma. Here, we assess EFS24 and subsequent overall survival (OS) in large, multinational PTCL cohorts. Patients and Methods Patients with systemic PTCL newly diagnosed from 2000 to 2012 and treated with curative intent were included from the United States and Sweden (initial cohorts) and from Canada (replication cohort). EFS was defined as time from date of diagnosis to progression after primary treatment, retreatment, or death. Subsequent OS was measured after achieving EFS24 or from the time of progression if it occurred within 24 months. OS rates were compared with the age-, sex-, and country-matched general population. Results Seven hundred seventy-five patients were included in the study (the median age at diagnosis was 64 years; 63% were men). Results were similar in the initial and replication cohorts, and a combined analysis was undertaken. Sixty-four percent of patients progressed within the first 24 months and had a median OS of only 4.9 months (5-year OS, 11%). In contrast, median OS after achieving EFS24 was not reached (5-year OS, 78%), although relapses within 5 years of achieving EFS24 occurred in 23% of patients. Superior outcomes after achieving EFS24 were observed in younger patients (≤ 60 years of age: 5-year OS, 91%). Conclusion EFS24 stratifies subsequent outcome in PTCL. Patients with PTCL with primary refractory disease or early relapse have extremely poor survival. However, more than one third of patients with PTCL remain in remission 2 years after diagnosis with encouraging subsequent OS, especially in younger patients. These marked differences in outcome suggest that EFS24 has utility for patient counseling, study design, and risk stratification in PTCL.
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27.
  • Mead, Monica, et al. (författare)
  • Impact of comorbidity in older patients with peripheral T-cell lymphoma : an international retrospective analysis of 891 patients
  • 2022
  • Ingår i: Blood Advances. - : American Society of Hematology. - 2473-9529 .- 2473-9537. ; 6:7, s. 2120-2128
  • Tidskriftsartikel (refereegranskat)abstract
    • Peripheral T-cell lymphoma (PTCL) is a heterogeneous group of aggressive neoplasms with poor outcomes, commonly affecting older patients with comorbidities. This study aims to describe outcomes of older patients with PTCL in a large international cohort. Patients aged $70 years with PTCL diagnosed from 1 January 2010 to 31 December 2015 in the Swedish Lymphoma Registry (SLR) and California Cancer Registry (CCR) were identified. Data on comorbidity were retrospectively collected according to the Charlson Comorbidity Index (CCI), and clinical outcomes were extracted. A total of 891 patients were included (SLR, n 5 173; CCR, n 5 718). Median age was 77 (SLR) and 78 (CCR) years. Included subtypes were as follows: angioimmunoblastic T-cell lymphoma, n 5 226; anaplastic large-cell lymphoma, n 5 122; enteropathy-associated T-cell lymphoma (EATL), n 5 31; hepatosplenic TCL, n 5 7; natural killer–/T-cell lymphoma, n 5 62; PTCL not otherwise specified, n 5 443. CCI data were available in 775 patients (87%), and CCI scores were divided into the groups CCI 5 0 (39%), CCI 5 1 (22%), and CCI . 1 (39%). Median age did not differ among the CCI groups (P 5 .72). Patients with a CCI . 1 had a worse median overall survival (4.4 months) compared with patients with CCI 5 0 (11.9 months) and CCI 5 1 (8.4 months; P, .001). Comorbidity and advancing age in as little as 5-year increments are important adverse factors in this group. Most patients died of lymphoma within a year from diagnosis, underscoring the importance of developing new treatments.
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