RT Journal Article SR Electronic T1 Reasons for Biologic and Targeted Synthetic Disease-modifying Antirheumatic Drug Cessation and Persistence of Second-line Treatment in a Rheumatoid Arthritis Dataset JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP jrheum.190535 DO 10.3899/jrheum.190535 A1 Peter Youssef A1 Bruno Marcal A1 Peter Button A1 Matt Truman A1 Paul Bird A1 Hedley Griffiths A1 Lynden Roberts A1 Kathleen Tymms A1 Geoff Littlejohn YR 2019 UL http://www.jrheum.org/content/early/2020/06/25/jrheum.190535.abstract AB Objective To provide real-world evidence about the reasons why Australian rheumatologists cease biologic (b) and targeted synthetic (ts) disease-modifying antirheumatic drugs (DMARD) when treating patients with rheumatoid arthritis (RA), and to assess (1) the primary failure rate for first-line treatment, and (2) the persistence on second-line treatments in patients who stopped first-line tumor necrosis factor inhibitors (TNFi). Methods This is a multicenter retrospective, noninterventional study of patients with RA enrolled in the Australian Optimising Patient outcome in Australian RheumatoLogy (OPAL) dataset with a start date of b/tsDMARD between August 1, 2010, and June 30, 2017. Primary failure was defined as stopping treatment within 6 months of treatment initiation. Results Data from 7740 patients were analyzed; 6914 patients received first-line b/tsDMARD. First-line treatment was stopped in 3383 (49%) patients; 1263 (37%) were classified as primary failures. The most common reason was “lack of efficacy” (947/2656, 36%). Of the patients who stopped first-line TNFi, 43% (1111/2560) received second-line TNFi, which resulted in the shortest median time to stopping second-line treatment (11 months, 95% CI 9–12) compared with non-TNFi. The longest second-line median treatment duration after first-line TNFi was for patients receiving rituximab (39 months, 95% CI 27–74). Conclusion A large proportion of patients who stopped first-line TNFi therapy received another TNFi despite evidence for longer treatment persistence on second-line b/tsDMARD with a different mode of action. Lack of efficacy was recorded as the most common reason for making a switch in first-line treatment of patients with RA.