Rituximab for maintenance of remission in ANCA-associated vasculitis: expert consensus guidelines - Executive summary

Anti-neutrophil cytoplasm antibody (ANCA)-associated vasculitis (AAV) encompasses three disease phenotypes: granulomatosis with polyangiitis (GPA), microscopic polyangiitis (MPA) and eosinophilic granulomatosis with polyangiitis (EGPA). Considerable improvements in therapy mean induction of remission occurs in most patients with AAV [1-4]. However, disease relapse continues to pose a burden to patients. Morbidity accrues with relapses through disease-related damage and adverse effects of therapies to manage these relapses, negatively impacting on quality of life [5]. Rituximab (RTX), a monoclonal antibody targeting CD20, leads to peripheral B cell depletion. This has been successfully trialled, and is licensed, for the induction and maintenance of remission in AAV [2, 3]. RTX is increasingly being used for the maintenance of remission in patients with AAV, to reduce the risk of relapse and its consequences [6]. Other commonly used agents that have been trialled for the maintenance of remission in AAV include azathioprine, methotrexate and mycophenolate [7-9]. The decision to select RTX for the maintenance of remission is multifactorial, including but not limited to, patient-related factors and preferences, previous treatment and response, consideration of the overall risk of relapse, and access to therapy. These guidelines have been developed by a group of physicians practising in the UK.