Adding Azathioprine to Remission‐Induction Glucocorticoids for Eosinophilic Granulomatosis With Polyangiitis (Churg‐Strauss), Microscopic Polyangiitis, or Polyarteritis Nodosa Without Poor Prognosis Factors

Addition of AZA to glucocorticoids for the induction of remission of nonsevere SNVs does not improve remission rates, lower relapse risk, spare steroids, or diminish the EGPA asthma/rhinosinusitis exacerbation rate.