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Sökning: WFRF:(Flossmann O)

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1.
  • Harper, Lorraine, et al. (författare)
  • Pulse versus daily oral cyclophosphamide for induction of remission in ANCA-associated vasculitis: long-term follow-up
  • 2012
  • Ingår i: Annals of the Rheumatic Diseases. - : BMJ Publishing Group. - 1468-2060. ; 71:6, s. 955-960
  • Tidskriftsartikel (refereegranskat)abstract
    • Introduction The previously reported randomised controlled trial of a consensus regimen of pulse cyclophosphamide suggested that it was as effective as a daily oral (DO) cyclophosphamide for remission induction of antineutrophil cytoplasm autoantibodies-associated systemic vasculitis when both were combined with the same glucocorticoid protocol (CYCLOPS study (Randomised trial of daily oral versus pulse Cyclophosphamide as therapy for ANCA-associated Systemic Vasculitis published de groot K, harper L et al Ann Int Med 2009)). The study had limited power to detect a difference in relapse. This study describes the long-term outcomes of patients in the CYCLOPS study. Methods Long-term outcomes were ascertained retrospectively from 148 patients previously recruited to the CYCLOPS Trial. Data on survival, relapse, immunosuppressive treatment, cancer incidence, bone fractures, thromboembolic disease and cardiovascular morbidity were collected from physician records retrospectively. All patients were analysed according to the group to which they were randomised. Results Median duration of follow-up was 4.3 years (IQR, 2.95-5.44 years). There was no difference in survival between the two limbs (p=0.92). Fifteen (20.8%) DO and 30 (39.5%) pulse patients had at least one relapse. The risk of relapse was significantly lower in the DO limb than the pulse limb (HR=0.50, 95% CI 0.26 to 0.93; p=0.029). Despite the increased risk of relapse in pulse-treated patients, there was no difference in renal function at study end (p=0.82). There were no differences in adverse events between the treatment limbs. Discussion Pulse cyclophosphamide is associated with a higher relapse risk than DO cyclophosphamide. However, this is not associated with increased mortality or long-term morbidity. Although the study was retrospective, data was returned in 90% of patients from the original trial.
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  • Lyons, Paul A., et al. (författare)
  • Genome-wide association study of eosinophilic granulomatosis with polyangiitis reveals genomic loci stratified by ANCA status
  • 2019
  • Ingår i: Nature Communications. - : Nature Publishing Group. - 2041-1723 .- 2041-1723. ; 10
  • Tidskriftsartikel (refereegranskat)abstract
    • Eosinophilic granulomatosis with polyangiitis (EGPA) is a rare inflammatory disease of unknown cause. 30% of patients have anti-neutrophil cytoplasmic antibodies (ANCA) specific for myeloperoxidase (MPO). Here, we describe a genome-wide association study in 676 EGPA cases and 6809 controls, that identifies 4 EGPA-associated loci through conventional case-control analysis, and 4 additional associations through a conditional false discovery rate approach. Many variants are also associated with asthma and six are associated with eosinophil count in the general population. Through Mendelian randomisation, we show that a primary tendency to eosinophilia contributes to EGPA susceptibility. Stratification by ANCA reveals that EGPA comprises two genetically and clinically distinct syndromes. MPO+ ANCA EGPA is an eosinophilic autoimmune disease sharing certain clinical features and an HLA-DQ association with MPO+ ANCA-associated vasculitis, while ANCA-negative EGPA may instead have a mucosal/barrier dysfunction origin. Four candidate genes are targets of therapies in development, supporting their exploration in EGPA.
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3.
  • Walsh, Michael, et al. (författare)
  • Long-Term Follow-Up of Cyclophosphamide Compared with Azathioprine for Initial Maintenance Therapy in ANCA-Associated Vasculitis.
  • 2014
  • Ingår i: Clinical Journal of the American Society of Nephrology. - : Amer Soc Nephrology. - 1555-905X. ; 9:9, s. 1571-1576
  • Tidskriftsartikel (refereegranskat)abstract
    • Treatment with azathioprine within 3 months of remission induction with cyclophosphamide is a common treatment strategy for patients with ANCA-associated vasculitis. This study comprised patients undergoing long-term follow-up who were randomly allocated to azathioprine after 3-6 months or after 12 months of cyclophosphamide treatment.DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: Patients from 39 European centers between 1995 and 1997 with a new diagnosis of ANCA-associated vasculitis that involved the kidneys or another vital organ were eligible. At the time of diagnosis, participants were randomly allocated to convert to azathioprine after 3-6 months (the azathioprine group) or after 12 months of cyclophosphamide (the cyclophosphamide group). Patients who did not achieve a remission within 6 months were excluded. This study assessed relapses, ESRD, and death during long-term follow-up.RESULTS: Patients were allocated to the azathioprine group (n=71) and the cyclophosphamide group (n=73). Of these patients, 63 (43.8%) developed a relapse, 35 (24.3%) developed a renal relapse, 13 (9.0%) developed ESRD, and 21 (14.6%) died. Although there were worse outcomes in the azathioprine group, none were statistically significant. The subdistribution hazard ratio [sHR] for relapse was 1.63 (95% confidence interval [95% CI], 0.99 to 2.71), the composite of relapse or death hazard ratio [HR] was 1.59 (95% CI, 1.00 to 2.54), the ESRD sHR was 1.71 (95% CI, 0.56 to 5.19), and the death HR was 0.75 (95% CI, 0.32 to 1.79).CONCLUSIONS: It remains uncertain whether converting to azathioprine after 3-6 months of induction cyclophosphamide therapy is as effective as converting after 12 months. Outcomes are still poor for this group of patients and further research is required to determine the optimal timing of maintenance therapy.
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  • Heijl, Caroline, et al. (författare)
  • Incidence of malignancy in patients treated for antineutrophil cytoplasm antibody-associated vasculitis: follow-up data from European Vasculitis Study Group clinical trials.
  • 2011
  • Ingår i: Annals of the Rheumatic Diseases. - : BMJ Publishing Group. - 1468-2060. ; 70, s. 1415-1421
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVES: /st> Because standard immunosuppressive treatment for antineutrophil cytoplasm antibody-associated vasculitis (AAV) (granulomatosis with polyangiitis (Wegener's) (GPA) and microscopic polyangiitis (MPA)) has been associated with a significant risk of developing cancer, the cancer incidence of treated AAV patients was assessed. METHODS: /st> This analysis concerned 535 patients with newly diagnosed AAV from 15 countries who had been enrolled between 1995 and 2002 in four European clinical trials. Over the period 2004-7, study participants' follow-up events were updated, including cancers diagnosed. Age, sex and area-standardised incidence ratios (SIR) and their 95% CI were calculated by linkage to five national cancer databases. RESULTS: /st> During the 2650 person-years' observation period, 50 cancers were diagnosed in 46 patients. SIR (95% CI) were 1.58 (1.17 to 2.08) for cancers at all sites, 1.30 (0.90 to 1.80) for cancers at all sites excluding non-melanoma skin cancer (NMSC), 2.41 (0.66 to 6.17) for bladder cancer, 3.23 (0.39 to 11.65) for leukaemia, 1.11 (0.03 to 6.19) for lymphoma and 2.78 (1.56 to 4.59) for NMSC. Subgroup SIR for cancers at all sites were 1.92 (1.31 to 2.71) for GPA and 1.20 (0.71 to 1.89) for MPA. CONCLUSIONS: /st> Cancer rates for AAV patients treated with conventional immunosuppressive therapy exceeded those expected for the general population. This cancer excess was largely driven by an increased incidence of NMSC. The smaller cancer risk magnitude in this cohort, compared with previous studies, might reflect less extensive use of cyclophosphamide in current treatment protocols. Longer follow-up data are warranted to appraise the risk of developing cancers later during the course of AAV.
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