P0410SIGNIFICANT BURDEN OF DISEASE DURING MAINTENANCE TREATMENT OF ANCA-ASSOCIATED VASCULITIS (AAV) PATIENTS IN REAL WORLD PRACTICE IN EUROPE

Autor: Peter Rutherford, Dieter Götte
Rok vydání: 2020
Předmět:
Zdroj: Nephrology Dialysis Transplantation. 35
ISSN: 1460-2385
0931-0509
DOI: 10.1093/ndt/gfaa142.p0410
Popis: Background and Aims ANCA associated vasculitis (AAV) is a relapsing remitting long term condition and patients are at risk of organ damage from both active AAV and its therapy in particular high dose and/or prolonged glucocorticoids (GC). The remission maintenance phase of AAV is critical for good long term outcomes including renal preservation as well as preventing AAV relapse. This retrospective study aimed to examine the definition of maintenance, therapy and clinical outcomes in patients managed in routine practice. Method 1478 AAV patients (France, Germany, Italy, Spain and UK) managed by 493 physicians (61% Nephrologists) who completed induction therapy for organ or life threatening AAV and initiated maintenance therapy between 2014-16 were studied. Data were collected retrospectively at the time maintenance was determined to begin by the physician and then at 6, 12, 18 and 36 months. Results 49% had granulomatosis with polyangiitis,; mean age 54.2 years with 56% male. 49% had incident AAV and 51% were studied from the time of a relapse requiring remission induction therapy. 70% received cyclophosphamide and GC and 30% received rituximab and GC as induction treatment with 28% receiving plasma exchange. Physicians defined time of the start of maintenance from induction treatment start with mean of 5.7 months on the basis of fixed time point 40%, starting new drug for maintenance 26%, reaching full remission 26% and no specific criteria 8%. At this time of maintenance start 43% were in full remission vs 50% in partial and 7% refractory. Various maintenance regimes were used, 21% received rituximab (88% 6 monthly and 8% 12 monthly, 4% other) at varying planned doses 34% 1g, 40% 500 mg and 23% 375 mg/m2, 4% other regime. Remission rates varied with patients experiencing disease relapse and many patients experienced adverse events (AE) and infections with prolonged GC use being common. Renal function was relatively unchanged and some patients had worsening eGFR, protein excretion or blood pressure. At the most recent clinical review patients had been followed for a mean of 50.7 months – 6% had died, 38% had relapsed at least once, and 11% required renal replacement therapy. 54% had no vasculitis activity, 26% were ANCA positive without active disease and 19% were still experiencing active disease. 32% were still receiving GCs - 22% of them receiving > 5mg/ day. Conclusion Maintenance therapy is variably defined but typically at 6 months from start of remission induction therapy. Achieving full remission and preventing relapse are still clinical problems and many patients require ongoing GC therapy to maintain remission. Infectious complications and adverse events are common and renal disease remains an ongoing clinical problem.
Databáze: OpenAIRE
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