[Descriptive study of the use of DMARD in patients with rheumatoid arthritis or persistent arthritis who start drug treatment in Spain (FIRST)]. / Estudio descriptivo de la utilización de los FAMES en los pacientes con artritis reumatoide o artritis persistente que inician tratamiento farmacológico en España. (ESTUDIO FIRST).

INTRODUCTION: Rheumatoid arthritis is clinically very heterogeneous and variable in its progression, and no one treatment works the same for all patients, as this will depend on the clinical course and specific situations. OBJECTIVE: To describe the treatment with DMARDs established for the first time in patients with rheumatoid arthritis (RA) or persistent arthritis (PA) in routine clinical practice in Spain. MATERIAL AND METHODS: Epidemiological, cross-sectional, uncontrolled, multicenter study in 15 regions of Spain during a period of five months (July to November 2006). We included patients of both genders, aged 18 years and diagnosed with RA according to ACR criteria or PA defined as any arthritis (oligoarthritis or polyarthritis) lasting ≥12 weeks, which would be given DMARD to treat their disease. RESULTS: 1079 patients were recruited, 915 analyzed (33% ♂/♀ 67%) meeting all the criteria required to be evaluated in the study. Mean age of patients was 54.6 (SD=15.4) years. The mean time from onset of symptoms until the 1st visit with the rheumatologist was 6.3 (11.3) months and the time from the 1st visit with the rheumatologist and the start of treatment was 4 (13.5) months. Of the patients tested, 96.7% was treated with at least one DMARD, 62.1% were given NSAIDs, corticosteroids to 59.2% and 3.8% biological therapy. In patients who received DMARDs, 90.3% received treatment with a single DMARD, 9.5% with 2 DMARDs and 0.2% with three DMARDs. In polytherapy, the DMARDs that are most often administered together were MTX + hydroxychloroquine (4.8%), MTX + leflunomide (2.0%) and MTX + sulfasalazine (1.5%). The most frequently used DMARD in monotherapy was MTX (81.3%), followed by leflunomide (4.1%) and hydroxychloroquine (3.2%). In 89.6%, the treatment of first choice was adequate according to the SER. CONCLUSION: The most common pattern of initial treatment of RA is MTX monotherapy. Treatment of RA by rheumatologists has been homogenized in recent years.