Eligibility Criteria

Inclusion Criteria:

  • Weight of at least 88 lbs (40 kg)
  • Diagnosis of Wegener’s granulomatosis (WG) or microscopic polyangiitis (MPA) according to the definitions of the Chapel Hill Consensus Conference
  • Newly diagnosed patient of WG or MPA OR must be experiencing a disease flare characterized by: (a) active disease with a BVAS/WG of 3 or greater that would normally require treatment with CYC; OR (b) disease severe enough to require treatment with CYC; OR (c) must be positive for either PR3-ANCA or MPO-ANCA at the screening
  • Willing to use acceptable forms of contraception for the duration of the study and for up to 1 year after stopping study medications
  • Willing to report pregnancies (female participants or male participants’ partners) occurring at any time during the study and for up to 1 year after stopping study medications

Exclusion Criteria:

  • Diagnosis of Churg Strauss syndrome as defined by the Chapel Hill Consensus Conference
  • Have limited disease that would not normally be treated with CYC
  • Requires mechanical ventilation because of alveolar hemorrhage
  • History of severe allergic reactions to human or chimeric monoclonal antibodies
  • Active systemic infection
  • Have a deep-space infection, such as osteomyelitis, septic arthritis, or pneumonia, complicated by pleural cavity or lung abscess, within 6 months prior to study entry
  • History of or current hepatitis B or C infection
  • HIV infected
  • Acute or chronic liver disease that, in the opinion of the investigator, may interfere with the study
  • History of or active cancer diagnosed within the last 5 years. Individuals with squamous cell or basal cell carcinomas of the skin and individuals with cervical carcinoma in situ who have received curative surgical treatment may be eligible for this study.
  • History of anti-glomerular basement membrane (anti-GBM) disease
  • Other uncontrolled disease, including drug and alcohol abuse, that may interfere with the study
  • Pregnancy or breastfeeding

 


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