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Träfflista för sökning "WFRF:(Fagerli Unn Merete) srt2:(2015-2019)"

Sökning: WFRF:(Fagerli Unn Merete) > (2015-2019)

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1.
  • Kolstad, Arne, et al. (författare)
  • Molecular Monitoring after Autologous Stem Cell Transplantation and Preemptive Rituximab Treatment of Molecular Relapse; Results from the Nordic Mantle Cell Lymphoma Studies (MCL2 and MCL3) with Median Follow-Up of 8.5 Years
  • 2017
  • Ingår i: Biology of blood and marrow transplantation. - : ELSEVIER SCIENCE INC. - 1083-8791 .- 1523-6536. ; 23:3, s. 428-435
  • Tidskriftsartikel (refereegranskat)abstract
    • The main objectives of the present study were to monitor minimal residual disease (MRD) in the bone marrow of patients with mantle cell lymphoma (MCL) to predict clinical relapse and guide preemptive treatment with rituximab. Among the patients enrolled in 2 prospective trials by the Nordic Lymphoma Group, 183 who had completed autologous stem cell transplantation (ASCT) and in whom an MRD marker had been obtained were included in our analysis. Fresh samples of bone marrow were analyzed for MRD by a combined standard nested and quantitative real-time PCR assay for Bcl-1/immunoglobulin heavy chain gene (IgH) and clonal IgH rear-rangements. Significantly shorter progression-free survival (PFS) and overall survival (OS) was demonstrated for patients who were MRD positive pre-ASCT (54 patients) or in the first analysis post-ASCT (23 patients). The median PFS was only 20 months in those who were MRD-positive in the first sample post-ASCT, compared with 142 months in the MRD-negative group (P <.0001). OS was 75% at 10 years and median not reached in the MRD-negative group, compared with only 35 months in the MRD-positive group (P <.0001). Of the 86 patients (47%) who remained in continuous molecular remission, 73% were still in clinical remission after 10 years. For all patients, the median time from ASCT to first molecular relapse was 55 months, with a continuous occurrence of late molecular relapses. Fifty-eight patients who experienced MRD relapse received rituximab as preemptive treatment on 1 or more occasions, and in this group, the median time from first molecular relapse to clinical relapse was 55 months. In most cases, rituximab converted patients to MRD negativity (87%), but many patients became MRD-positive again later during follow-up (69%). By multivariate analysis, high-risk Mantle Cell Lymphoma International Prognostic Index score and positive MRD status pre-ASCT predicted early molecular relapse. In conclusion, preemptive rituximab treatment converts patients to MRD negativity and likely postpones clinical relapse. Molecular monitoring offers an opportunity to select some patients for therapeutic intervention and to avoid unnecessary treatment in others. MRD-positive patients in the first analysis post-ASCT have a dismal prognosis and thus are in need of novel strategies.
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2.
  • Pulczynski, Elisa J, et al. (författare)
  • Successful change of treatment strategy in elderly patients with primary central nervous system lymphoma by de-escalating induction and introducing temozolomide maintenance: results from a phase 2 study by The Nordic Lymphoma Group.
  • 2015
  • Ingår i: Haematologica. - : Ferrata Storti Foundation (Haematologica). - 1592-8721 .- 0390-6078. ; 100:4, s. 534-540
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Nordic Lymphoma Group has conducted a phase ll trial in primary central nervous system lymphoma patients applying age-adjusted multi-agent immunochemotherapy regimen, which in elderly patients included temozolomide maintenance treatment. Design and Methods: Patients with newly diagnosed PCNSL aged 18-75 years were eligible. Sixty-six patients (median age 64 years) were enrolled. Two age groups were predefined as those of 18-65 and 66-75 years of age. Results: The overall response rate was 90.8 %. With a median follow-up of 22 months, the 2-year overall survival probability was 60.7 % in patients < 65 years and 55.6% in patients > 65 years (p= 0.40). The estimated progression-free survival at 2 years was 33.1% (CI: 19.1%-47.9%) in patients < 65 years and 44.4% (CI: 25.6%-61.8%) in the elderly subgroup (p=0.74). Median duration of response was 10 months in the younger, not reached in the elderly patients (p=0.33). Four patients aged 64-75 years (6 %) died from treatment related complications. Conclusion: Survival in the two age groups was similar despite a de-escalation of induction treatment in patients > 65 years. Duration of response in elderly patients receiving maintenance temozolomide was longer than in the younger age subgroup. While toxicity during induction is still of concern especially in the elderly patients we conclude from these data that de-escalation of induction therapy in elderly PCNSL patients followed by maintenance treatment seems to be a promising treatment strategy. Trial registration: ClinicalTrials.gov number NCT01458730.
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