Leeds study of 44 patients idiopathic inflamm myopathy (IIM) pts Rx w/ rituximab showed a 70% response 4-6 mos post RTX. Responders had higher TIS (50·0 vs 17·5). Using highly sensitive flow cytometry, @ 2 wks responders had lower #s memory B cells & Plasmablasts. Is there a role https://t.co/JDvVZ1KEIY