Ivarmacitinib (AKA SHR-0302) is a JAK1 inhib approved in China. Phase II/III RCT (NCT04481139) in active #AS Rx w/ ivarmacitinib 4 mg (n 187) or placebo (n 186) showing IVRMA @wk 12 IVRMA had signif better ASAS20 response(49% vs 29%) & ASAS40 (32% vs 18%). Also superior: total https://t.co/ilVtrQgHxR