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You are here: Home / Articles / Stay the Course: How to Maintain Remission in Vasculitis

Stay the Course: How to Maintain Remission in Vasculitis

September 9, 2019 • By Jason Liebowitz, MD

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MADRID—During the 2019 European Congress of Rheumatology (EULAR), held June 12–15, speakers addressed the complexity of vasculitis in a Challenges in Clinical Practice session titled, How to Maintain Remission in Vasculitis.

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Although vasculitis appears in many varieties, one commonality exists among these related yet distinct conditions: When there is vital organ or systemic involvement, disease progression can be rapid and life threatening. Example: The five-year survival rate for patients in the French Vasculitis Study Group with systemic necrotizing vasculitides, including polyarteritis nodosa (PAN), granulomatosis with polyangiitis (GPA), microscopic polyangiitis (MPA) and eosinophilic granulomatosis with polyangiitis (EGPA), was only 72% through 1980. However, these rates have improved over the years, with 94% of patients in this cohort who were diagnosed after 2010 surviving five years.1 Additionally, research in the U.S. has shown declining in-hospital mortality and mortality due to end-stage renal disease in GPA since the 1990s.2,3

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Thus, rheumatologists are left with the difficult task of correctly identifying and treating systemic vasculitis while avoiding the long-term side effects of treatment, such as infection, osteoporosis and negative consequences of corticosteroid therapy. They must also evaluate how best to maintain disease remission in patients.

Treatment Options
Loïc Guillevin, MD, professor of medicine and therapeutics, Hôpital Cochin, Université Paris Descartes, France, began the session. He sought to answer several important questions: What is the ideal induction treatment for anti-neutrophil cytoplasmic antibody (ANCA) associated vasculitis, and what is the effect on maintenance treatment? Do patients with ANCA-associated vasculitis need maintenance treatment, and if so, what treatment? How long should patients with these conditions be treated, and what should long-term treatment entail?

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Traditionally, remission in ANCA-associated vasculitis has been achieved with the use of cyclophosphamide and corticosteroids. More recently, rituximab, along with corticosteroids, has become a potential treatment option. In GPA without renal involvement, methotrexate or azathioprine are viable treatment strategies. In some cases, such as EGPA without systemic involvement or signs of poor prognosis, corticosteroids can be used as monotherapy. Prof. Guillevin noted that although remission can be initially achieved with azathioprine, methotrexate or corticosteroid monotherapy, relapse rates are high when treatment is stopped early. Therefore, when immunosuppressants are prescribed to induce remission, a maintenance agent is compulsory.

It’s an exciting time in the area of vasculitis treatment & research, & the next frontier in the field may be devising the best methods to induce & monitor for disease remission.

With regard to cyclophosphamide, the Cyclophosphamide vs. Azathioprine for Early Remission Phase of Vasculitis (CYCAZAREM) trial demonstrated that in patients with generalized vasculitis, withdrawal of cyclophosphamide and substitution of azathioprine after remission did not increase the rate of relapse. This finding indicates that extended treatment with cyclophosphamide is not necessary for maintenance of remission.4 With regard to methotrexate and azathioprine for maintenance of remission in ANCA-associated vasculitis, the two medications were shown to be similar in efficacy in the Wegener’s Granulomatosis–Entretien (WEGENT) trial. But relapse-free survival at 36 months was only 69% in the methotrexate group and 64% in the azathioprine group.5

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Pages: 1 2 3 | Single Page

Filed Under: Conditions, Vasculitis Tagged With: EULAR, giant cell arteritis (GCA), Remission, rituximab, Vasculitis

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  • Researchers Seek the Best Methods to Maintain Remission in Vasculitis
  • Maintenance of Remission in ANCA-Associated Vasculitis
  • Longer Rituximab Therapy Boosts Remission in ANCA-Associated Vasculitis
  • AAV Remission Study: Does Rituximab or Azathioprine Work Best?

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