Filgotinib Efficacy and Safety - 3 Years Later Filgotinib, the rheumatoid arthritis (RA) oral drug that never made it to the U.S. market but is sold across Europe, Great Britain, and Japan, remained effective for 3 years for most registration trial participants who continued in… https://t.co/eABIG1Kal6 https://t.co/7ZphZALniE