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Objectives: The aim of the present study was to provide real-world evidence for factors predicting long-term remission in a longitudinal study of rheumatoid arthritis (RA) patients., Methods: Long-term remission was defined by meeting American Rheumatism Association (ARA) criteria for remission and prednisolone dose ≤ 5 mg/d for at least 5 years. Patients in this cohort were treated by tight control strategy using step-up combination therapy with conventional synthetic DMARDs (csDMARDs), biologic DMARDs. The parameters associated with long-term remission were subjected to univariate analysis, and parameters with P-values of < 0.1 in univariate analysis were included in a multivariate regression analysis., Results: One thousand two hundred and eighty-six RA subjects were considered for eligibility, and finally, 499 patients were included in the study. Median duration of follow-up was 108 months. Long-term remission occurred in 157 (31.5%) patients. Median time to long-term remission was 8 (5, 41) months. Predictors of long-term remission were absence of flare during the course of disease, occurrence of sustained remission during 6 months after starting therapy, age at the disease onset > 60, being anti-citrullinated protein antibodies (ACPA) negative, and Disease Activity Score-28 (DAS28) at cohort entry ≤ 5.1., Conclusion: In real-world practice, long-term remission occurs in 31.5% of patients treated with a tight control strategy. Absence of flare during the course of disease, occurrence of sustained remission during 6 months after starting therapy, age at the disease onset > 60, being ACPA negative, and DAS28 at baseline ≤ 5.1 are independent predictors of long-term remission. Key Points • In real-world practice, long-term remission occurs in 31.5% of patients treated with a tight control strategy. • Median time to long-term remission was 8 months. • Absence of flare during the course of disease, occurrence of sustained remission during 6 months after starting therapy, age at the disease onset >60, being ACPA negative, and DAS28 at baseline ≤ 5.1 are independent predictors of long-term remission., (© 2023. The Author(s), under exclusive licence to International League of Associations for Rheumatology (ILAR).)

Objective: Palindromic rheumatism (PR) is characterized by self-resolving and short duration attacks of arthritis/periarthritis. The present study was performed to report the results of PR treatment with methotrexate (MTX)., Methods: We reviewed the charts of 152 patients with diagnosis of PR. Inclusion criteria were diagnosis of PR according to the criteria of Weismann, age ≥16, active disease and treatment with MTX for at least 6 months. Disease outcome was assessed by reaching remission and prevention of disease evolution to chronic arthritis. Remission was defined as stopping the attacks for 12 weeks and prednisolone dose ≤5 mg/d. MTX treatment failure was defined as failure to achieve remission, the need to add other disease-modifying antirheumatic drugs and disease progression to chronic arthritis., Results: Fifty-nine patients were included in the study. Median duration of follow-up was 43 months. Attacks were controlled in 89.8% of patients. In 80% of the patients remission occurred during 12 months after starting treatment with MTX. Treatment failed in 20.3% of patients. Wrist joint involvement and positive rheumatoid factor (RF) were significantly more common in the MTX treatment-failed group. In RF positive patients evolution to rheumatoid arthritis was more common than in RF negative patients. No significant differences were observed in remission rate and evolution to rheumatoid arthritis in anticitrullinated C peptide positive and negative patients., Conclusions: The present study, demonstrated the efficacy of MTX in controlling PR in seropositive and seronegative patients over a median of 43 months of treatment., (© 2022 Asia Pacific League of Associations for Rheumatology and John Wiley & Sons Australia, Ltd.)