Relapse of idiopathic inflammatory myopathies (IIMs) was seen 65/105 (62%) pts. Higher risk seen w/ ANA positivity (HR 1.13), w/ + histopathology on muscle Bx (HR 1.69), & immunosuppressants use before relapse (HR 0.50). https://t.co/tr0OdvOAPK https://t.co/H3t3u1mDtd