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Long-term efficacy of remission-maintenance regimens for ANCA-associated vasculitides

Abstract : Objective - To compare long-term efficacy of remission-maintenance regimens in patients with newly diagnosed or relapsing antineutrophil cytoplasmic antibodies (ANCA)-associated vasculitides. Methods - The 28-month Maintenance of Remission using Rituximab in Systemic ANCA-associated Vasculitis trial compared rituximab with azathioprine to maintain remission in patients with newly diagnosed or relapsing granulomatosis with polyangiitis, microscopic polyangiitis or renal-limited ANCA-associated vasculitis. Thereafter, prospective patient follow-up lasted until month 60. The primary endpoint was the major-relapse rate at month 60. Relapse and serious adverse event-free survival were also assessed. Results - Among the 115 enrolled patients, only one was lost to follow-up at month 60. For the azathioprine and rituximab groups, respectively, at month 60, the major relapse-free survival rates were 49.4% (95% CI 38.0% to 64.3%) and 71.9% (95% CI 61.2% to 84.6%) (p=0.003); minor and major relapse-free survival rates were 37.2% (95% CI 26.5% to 52.2%) and 57.9% (95% CI 46.4% to 72.2%) (p=0.012); overall survival rates were 93.0% (95% CI 86.7% to 99.9%) and 100% (p=0.045) and cumulative glucocorticoid use was comparable. Quality-adjusted time without symptoms and toxicity analysis showed that rituximab-treated patients had 12.6 months more without relapse or toxicity than those given azathioprine (p<0.001). Antiproteinase-3-ANCA positivity and azathioprine arm were independently associated with higher risk of relapse. HRs of positive ANCA to predict relapse increased over time. Conclusion - The rate of sustained remission for ANCA-associated vasculitis patients, following rituximab-based or azathioprine-based maintenance regimens, remained superior over 60 months with rituximab, with better overall survival. Trial registration number - NCT00748644.
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Contributor : Laurent Jonchère <>
Submitted on : Monday, June 11, 2018 - 2:58:04 PM
Last modification on : Wednesday, February 24, 2021 - 3:22:06 PM

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Benjamin Terrier, Christian Pagnoux, Elodie Perrodeau, Adexandre Karras, Chahera Khouatra, et al.. Long-term efficacy of remission-maintenance regimens for ANCA-associated vasculitides. Annals of the Rheumatic Diseases, BMJ Publishing Group, 2018, 77 (8), pp.1150-1156. ⟨10.1136/annrheumdis-2017-212768⟩. ⟨hal-01812523⟩



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