ABSTRACT
Abstract Background: Determining potential predictors of clinical response would allow a more personalized rheumatoid arthritis (RA) treatment approach in heterogeneous populations such as Latin American (LA) patients. Methods: Post hoc analysis to identify baseline characteristics predictive of clinical remission in response to treatment with etanercept (ETN) plus methotrexate (MTX) in LA patients with moderate to severe MTX-resistant RA. We report data from the group of patients who received ETN 50 mg/week plus MTX (ETN + MTX, n = 281) in a clinical trial consisting of an initial 24-week open-label phase, followed by a 104-week extension. Remission was defined as 28-joint Disease Activity Score with erythrocyte sedimentation rate (DAS28-ESR) score < 2.6. Cutoff values to dichotomize baseline variables maximizing the detection of remission were obtained from Receiver Operator Curve analyses. Baseline dichotomized and categorical variables were analyzed altogether in a stepwise logistic regression model. Odds of attaining response at Weeks 24 and 128 were estimated for each significant predictor. Results: At Week 24 and Week 128, 27% (66/241) and 42% (91/219) of patients in the ETN + MTX group achieved remission. On average, patients achieving remission were younger and had lower baseline ESR, lower Physician Global Assessment (PGA) scores, lower total Health Assessment Questionnaire (HAQ) scores, and lower visual analog scale (VAS) Pain scores compared with patients who did not achieve remission. The best subset of baseline variables predicting Week 24 remission in the stepwise regression model were age ≤ 49 years (odds ratio [OR] 2.93), body mass index (BMI) > 28.5 kg/m2 (OR 3.24), disease duration > 3.7 years (OR 2.22), ESR ≤ 42 mm/h (OR 2.72), PGA ≤ 6 (OR 3.21), tender joint count ≤ 14 (OR 2.25), and total HAQ score ≤ 1.6 (OR 2.86). At Week 128, age ≤ 42 years (OR 2.21), SF-36 Mental Health Scale score > 39.6 (OR 2.16), White race (OR 4.07), > 18 swollen joints (OR 2.11), and VAS Pain ≤ 41 (OR 6.05) at baseline were the best subset of significant predictors of remission. Conclusions: In LA patients with RA, younger age, higher BMI, longer disease duration, higher SF-36 Mental Health Scale score, higher swollen joint count, and overall lower disease activity predicted clinical response to ETN + MTX therapy. Trial registration: ClinicalTrials.gov Identifier: NCT00848354.
ABSTRACT
Esta revisión trata de los fundamentos sobre los que descansa el tratamiento actual de la espondilitis anquilosante, enfatizando la participación y la opinión de la comunidad reumatológica nacional. En la temática se incluye la repercusión de la enfermedad aspectos epidemiológicos, laborales, económicos, estado de salud y calidad de vida, propuestas para la identificación de la espondiloartritis axial como la forma más precoz de la espondilitis anquilosante y el análisis de la literatura que dio origen a las recomendaciones terapéuticas actuales. Con relación al último punto, se abordan las recomendaciones ASAS/EULAR para el tratamiento de la espondilitis anquilosante y el nivel de concordancia con la opinión del reumatólogo mexicano y de otros países. Finalmente, se analizan las recomendaciones para iniciar bloqueadores del factor de necrosis tumoral en pacientes con espondilitis anquilosante.
We describe the guidelines for the current treatment of ankylosing spondylitis with an emphasis on the role and outlook of the Mexican rheumatologic community. The topics we analyze include: epidemiological as well as professional, financial, health status, and quality of life aspects. We propose to acknowledge that axial spondyloarthritis is the earliest form of ankylosing spondylitis. Finally we carry out a review of the literature supporting current therapeutic recommendations. Regarding the latter, we approached the ASAS/EULAR recommendations for the treatment of ankylosing spondylitis and their level of agreement with Mexican and other countries' rheumatologists. Finally, we analyzed the recommendations to start tumor necrosis alpha blockers among patients with ankylosing spondylitis.
Subject(s)
Humans , Spondylitis, Ankylosing/therapy , Practice Guidelines as Topic , Mexico , RheumatologyABSTRACT
Se reporta el caso documentado de un varón de 26 años de edad con diagnóstico de lupus eritematoso sistémico (LES) de un año de evolución en quien se demostró ausencia de IgA. La agravación del problema a pesar de las medidas de tratamiento que se describen, condujo a la muerte del paciente. Se discute la posible contribución de la deficiencia de IgA facilitando manifestaciones de hipersensibilidad a medicamentos y se cometa la utilidad de determinar inmunodeficiencia IgA en pacientes con LES para conocer si existe participación de este hecho en el comportamiento clínico