RT Journal Article SR Electronic A1 Kuznar, Wayne T1 Investigational Selective JAK1 Inhibitor Improves Measures of Disease Activity in RA JF MD Conference Express YR 2013 FD SAGE Publications VO 13 IS 8 SP 18 OP 18 DO 10.1177/155989771308008 UL http://mdc.sagepub.com/content/13/8/18.abstract AB An investigational selective inhibitor of Janus kinase 1 (JAK1) was found to improve clinical endpoints with a favorable safety profile in a Phase 2a dose-ranging study of patients with rheumatoid arthritis (RA). This article discusses the results of a 4-week double-blind, placebo-controlled study of GLPG0634, an orally-available, selective inhibitor of JAK1, in patients with active RA [Vanhoutte FP et al. EULAR 2013 (poster 0229)].