Journal
ANNALS OF THE RHEUMATIC DISEASES
Volume 73, Issue 1, Pages 108-113Publisher
BMJ PUBLISHING GROUP
DOI: 10.1136/annrheumdis-2013-203460
Keywords
Spondyloarthritis; NSAIDs; TNF-alpha
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Funding
- Merck Sharp Dohme Corp.
- Merck & Co., Inc., Whitehouse Station, NJ
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Objective To investigate whether biologic-free remission can be achieved in patients with early, active axial spondyloarthritis (SpA) who were in partial remission after 28weeks of infliximab (IFX)+naproxen (NPX) or placebo (PBO)+NPX treatment and whether treatment with NPX was superior to no treatment to maintain disease control. Method Infliximab as First-Line Therapy in Patients with Early Active Axial Spondyloarthritis Trial (INFAST) Part 1 was a double-blind, randomised, controlled trial in biologic-naive patients with early, active, moderate-to-severe axial SpA treated with either IFX 5mg/kg+NPX 1000mg/d or PBO+NPX 1000mg/d for 28weeks. Patients achieving Assessment of SpondyloArthritis international Society (ASAS) partial remission at week 28 continued to Part 2 and were randomised (1:1) to NPX or no treatment until week 52. Treatment group differences in ASAS partial remission and other efficacy variables were assessed through week 52 with Fisher exact tests. Results At week 52, similar percentages of patients in the NPX group (47.5%, 19/40) and the no-treatment group (40.0%, 16/40) maintained partial remission, p=0.65. Median duration of partial remission was 23weeks in the NPX group and 12.6weeks in the no-treatment group (p=0.38). Mean Bath Ankylosing Spondylitis Disease Activity Index scores were low at week 28, the start of follow-up treatment (NPX, 0.7; no treatment, 0.6), and remained low at week 52 (NPX, 1.2; no treatment, 1.7). Conclusions In axial SpA patients who reached partial remission after treatment with either IFX+NPX or NPX alone, disease activity remained low, and about half of patients remained in remission during 6months in which NPX was continued or all treatments were stopped.
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