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Disease-modifying antirheumatic drug-free sustained remission in rheumatoid arthritis

Journal Contribution - Journal Article

Subtitle:an increasingly achievable outcome with subsidence of disease symptoms

OBJECTIVE: Disease-modifying antirheumatic drug (DMARD)-free sustained remission, the sustained absence of synovitis after cessation of DMARD therapy, is a relevant long-term outcome of rheumatoid arthritis (RA) if (1) its occurrence is promoted by treatment and (2) this status reflects resolution of symptoms and disability. This study investigated both items.

METHODS: 1007 patients with RA diagnosed between 1993 and 2011, included in the Leiden Early Arthritis Clinic, were studied on achieving DMARD-free sustained remission. Patients included in 1993-1995 were initially treated with non-steroidal anti-inflammatory drugs, in 1996-1998 mild DMARDs were started early, from 1999 onwards methotrexate was initiated promptly and from 2005 onwards disease activity score (DAS)-steered treatment was common. Remission rates were compared using Kaplan-Meier curves and Cox proportional regression.

RESULTS: In total, 155 patients achieved DMARD-free sustained remission. Specific treatment strategies were significantly associated with achieving remission (p<0.001). Cox regression adjusted for anticitrullinated protein antibody/rheumatoid factor, swollen joint count, erythrocyte sedimentation rate, C-reactive protein revealed HRs for DMARD-free sustained remission of 1.13 (95% CI 0.48 to 2.64) in patients diagnosed in 1996-1998, 2.39 (1.07 to 5.32) in patients treated with early methotrexate (inclusion 1999-2004) and 3.72 (1.60 to 8.62) in those treated early with methotrexate and DAS-steered therapy (inclusion 2005-2011). At the time of remission, the Health Assessment Questionnaire was at the level of the general population (median 0.13, IQR 0-0.63). Also, patient-rated visual analogue scale (VAS) morning stiffness, fatigue, pain and disease activity were low (median (IQR) mm, 14 (2-27), 10 (0-47), 6 (0-20), 7 (0-20), respectively).

CONCLUSIONS: More intensive treatment strategies increased the chance for DMARD-free sustained remission, indicating that RA chronicity can be influenced. Patients with RA achieving DMARD-free sustained remission have a normalised functional status.

Journal: Ann Rheum Dis
ISSN: 0003-4967
Issue: 5
Volume: 75
Pages: 867-873
Keywords:Adult, Aged, Antirheumatic Agents/therapeutic use, Arthritis, Rheumatoid/blood, Biomarkers/blood, Blood Sedimentation, C-Reactive Protein/metabolism, Female, Follow-Up Studies, Humans, Kaplan-Meier Estimate, Male, Middle Aged, Remission Induction, Severity of Illness Index, Treatment Outcome