Safety and Efficacy of Filgotinib: Up to 4-Year Results From an Open-Label Extension Study of Phase 2 Rheumatoid Arthritis Programs
J Rheumatol. 2021 Feb 1:jrheum.201183. DOI: 10.3899/jrheum.201183.A long-term extension study of filgotinib showed consistent safety profile and sustained efficacy with the drug for up to four years. The DARWIN 3 study, for patients who previously completed either the 24-week DARWIN 1 study (filgotinib + MTX) or the DARWIN 2 study (filgotinib monotherapy), enrolled 739 patients with RA. At the time of analysis, 440 patients had received four years or more of filgotinib. Exposure-adjusted incidence rate per 100 patient-years-of-exposure for TEAEs was 24.6 in th...