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1.
Arthritis Care Res (Hoboken) ; 70(1): 98-103, 2018 01.
Artículo en Inglés | MEDLINE | ID: mdl-28388813

RESUMEN

OBJECTIVE: To determine the level of agreement of disease flare severity (distinguishing severe, moderate, and mild flare and persistent disease activity) in a large paper-patient exercise involving 988 individual cases of systemic lupus erythematosus. METHODS: A total of 988 individual lupus case histories were assessed by 3 individual physicians. Complete agreement about the degree of flare (or persistent disease activity) was obtained in 451 cases (46%), and these provided the reference standard for the second part of the study. This component used 3 flare activity instruments (the British Isles Lupus Assessment Group [BILAG] 2004, Safety of Estrogens in Lupus Erythematosus National Assessment [SELENA] flare index [SFI] and the revised SELENA flare index [rSFI]). The 451 patient case histories were distributed to 18 pairs of physicians, carefully randomized in a manner designed to ensure a fair case mix and equal distribution of flare according to severity. RESULTS: The 3-physician assessment of flare matched the level of flare using the 3 indices, with 67% for BILAG 2004, 72% for SFI, and 70% for rSFI. The corresponding weighted kappa coefficients for each instrument were 0.82, 0.59, and 0.74, respectively. We undertook a detailed analysis of the discrepant cases and several factors emerged, including a tendency to score moderate flares as severe and persistent activity as flare, especially when the SFI and rSFI instruments were used. Overscoring was also driven by scoring treatment change as flare, even if there were no new or worsening clinical features. CONCLUSION: Given the complexity of assessing lupus flare, we were encouraged by the overall results reported. However, the problem of capturing lupus flare accurately is not completely solved.


Asunto(s)
Técnicas de Apoyo para la Decisión , Lupus Eritematoso Sistémico/diagnóstico , Registros Médicos , Encuestas y Cuestionarios , Competencia Clínica , Consenso , Progresión de la Enfermedad , Humanos , Variaciones Dependientes del Observador , Valor Predictivo de las Pruebas , Reproducibilidad de los Resultados , Índice de Severidad de la Enfermedad
2.
Lupus ; 26(10): 1051-1059, 2017 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-28420054

RESUMEN

Autoantibodies to dense fine speckles 70 (DFS70) are purported to rule out the diagnosis of SLE when they occur in the absence of other SLE-related autoantibodies. This study is the first to report the prevalence of anti-DFS70 in an early, multinational inception SLE cohort and examine demographic, clinical, and autoantibody associations. Patients were enrolled in the Systemic Lupus International Collaborating Clinics (SLICC) inception cohort within 15 months of diagnosis. The association between anti-DFS70 and multiple parameters in 1137 patients was assessed using univariate and multivariate logistic regression. The frequency of anti-DFS70 was 7.1% (95% CI: 5.7-8.8%), while only 1.1% (95% CI: 0.6-1.9%) were monospecific for anti-DFS70. In multivariate analysis, patients with musculoskeletal activity (Odds Ratio (OR) 1.24 [95% CI: 1.10, 1.41]) or with anti-ß2 glycoprotein 1 (OR 2.17 [95% CI: 1.22, 3.87]) were more likely and patients with anti-dsDNA (OR 0.53 [95% CI: 0.31, 0.92]) or anti-SSB/La (OR 0.25 [95% CI: 0.08, 0.81]) were less likely to have anti-DFS70. In this study, the prevalence of anti-DFS70 was higher than the range previously published for adult SLE (7.1 versus 0-2.8%) and was associated with musculoskeletal activity and anti-ß2 glycoprotein 1 autoantibodies. However, 'monospecific' anti-DFS70 autoantibodies were rare (1.1%) and therefore may be helpful to discriminate between ANA-positive healthy individuals and SLE.


Asunto(s)
Proteínas Adaptadoras Transductoras de Señales/inmunología , Autoanticuerpos/inmunología , Lupus Eritematoso Sistémico/inmunología , Factores de Transcripción/inmunología , beta 2 Glicoproteína I/inmunología , Adulto , Estudios de Cohortes , Femenino , Humanos , Modelos Logísticos , Masculino , Análisis Multivariante , Prevalencia
3.
Lupus ; 25(10): 1097-101, 2016 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-27497254

RESUMEN

Clinical trials of investigational agents in systemic lupus erythematosus (SLE) have focused on targeting dysregulated B and T cells; however, recent translational research findings of the importance of the dysregulation of the innate immune system in SLE have led to clinical trials that target interferon. Three biologics that target type I interferons have been tested for their efficacy and safety in active SLE patients; these phase II trials have tested the hypothesis that down-regulation of interferon-regulated gene expression (the interferon signature) lessen the clinical burden of SLE. Rontalizumab, an anti-interferon-α monoclonal antibody, was studied in patients who had discontinued immunosuppressants. This study failed to show efficacy as assessed by both two outcome assessments; however, in low interferon signature patients, response was higher and corticosteroid usage was less in rontalizumab-treated patients. Sifalimumab, another anti-interferon-α monoclonal antibody, was studied in patients who remained on standard of care therapy. This study showed significantly better efficacy in patients treated with two sifalimumab dosages; significant differences were seen in the high interferon signature group. In a similar design and in a similar population as the sifalimumab study, anifrolumab, a monoclonal antibody that binds to a type I interferon receptor, was studied in patients who remained on standard of care therapy. In this study, one dosage group demonstrated efficacy and statistically significant effects were achieved in both tested dosage groups with secondary end points. Oral corticosteroid reduction to ≤7.5 mg daily was achieved in one of the tested dosage groups and organ-specific outcomes were significantly improved in that same group. For all studies, no significant differences in serious adverse effects were seen; although, herpes zoster infections were increased in sifalimumab- and anifrolumab-treated patients and influenza rates were increased in anifrolumab-treated patients. Anifrolumab is currently in pivotal phase III studies. Data appear to support the concept that targeting type I interferon in SLE patients associates with clinical efficacy and safety. Further data are forthcoming from ongoing phase III clinical trials of anifrolumab. Other drug development efforts should be considered that target plasmacytoid dendritic cells and toll like receptors given the effects these components have on interferon production.


Asunto(s)
Anticuerpos Monoclonales/administración & dosificación , Anticuerpos Monoclonales/inmunología , Interferón-alfa/inmunología , Lupus Eritematoso Sistémico/tratamiento farmacológico , Lupus Eritematoso Sistémico/inmunología , Anticuerpos Monoclonales/efectos adversos , Ensayos Clínicos Fase II como Asunto , Relación Dosis-Respuesta a Droga , Humanos , Interferón-alfa/antagonistas & inhibidores , Terapia Molecular Dirigida , Ensayos Clínicos Controlados Aleatorios como Asunto , Resultado del Tratamiento
4.
Lupus Sci Med ; 3(1): e000143, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27099765

RESUMEN

OBJECTIVE: To describe the frequency of myocardial infarction (MI) prior to the diagnosis of systemic lupus erythematosus (SLE) and within the first 2 years of follow-up. METHODS: The systemic lupus international collaborating clinics (SLICC) atherosclerosis inception cohort enters patients within 15 months of SLE diagnosis. MIs were reported and attributed on a specialised vascular event form. MIs were confirmed by one or more of the following: abnormal ECG, typical or atypical symptoms with ECG abnormalities and elevated enzymes (≥2 times upper limit of normal), or abnormal stress test, echocardiogram, nuclear scan or angiogram. Descriptive statistics were used. RESULTS: 31 of 1848 patients who entered the cohort had an MI. Of those, 23 patients had an MI prior to SLE diagnosis or within the first 2 years of disease. Of the 23 patients studied, 60.9% were female, 78.3% were Caucasian, 8.7% black, 8.7% Hispanic and 4.3% other. The mean age at SLE diagnosis was 52.5±15.0 years. Of the 23 MIs that occurred, 16 MIs occurred at a mean of 6.1±7.0 years prior to diagnosis and 7 occurred within the first 2 years of follow-up. Risk factors associated with early MI in univariate analysis are male sex, Caucasian, older age at diagnosis, hypertension, hypercholesterolaemia, family history of MI and smoking. In multivariate analysis only age (OR=1.06 95% CI 1.03 to 1.09), hypertension (OR=5.01, 95% CI 1.38 to 18.23), hypercholesterolaemia (OR=4.43, 95% CI 1.51 to 12.99) and smoking (OR=7.50, 95% CI 2.38 to 23.57) remained significant risk factors. CONCLUSIONS: In some patients with lupus, MI may develop even before the diagnosis of SLE or shortly thereafter, suggesting that there may be a link between autoimmune inflammation and atherosclerosis.

5.
Arthritis Care Res (Hoboken) ; 68(4): 534-43, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-26316325

RESUMEN

OBJECTIVE: The primary objective was to assess the long-term safety of repeated courses of epratuzumab therapy in patients with moderate-to-severe systemic lupus erythematosus. Secondary objectives were to assess long-term efficacy and health-related quality of life (HRQOL). METHODS: Eligible patients from the 12-week, phase IIb, randomized, placebo-controlled EMBLEM study enrolled into the open-label extension (OLE) study, SL0008. In the SL0008 study, patients received 1,200 mg epratuzumab infusions at weeks 0 and 2 of repeating 12-week cycles, plus standard of care. Safety measures included treatment-emergent adverse events (TEAEs) and serious TEAEs. Efficacy measures included combined treatment response, the British Isles Lupus Assessment Group score, the Systemic Lupus Erythematosus Disease Activity Index score, and the physician's and patient's global assessment of disease activity. Total daily corticosteroid dose and HRQOL (by the Short Form 36 health survey) were also assessed. RESULTS: A total of 113 of the 203 patients (55.7%) who entered the SL0008 study continued epratuzumab therapy until study closure (total cumulative exposure: 381.3 patient-years, median exposure: 845 days, and maximum exposure: 1,185 days/approximately 3.2 years). TEAEs were reported in 192 patients (94.6%); most common were infections and infestations (68.0%, 138 patients). Serious TEAEs were reported in 51 patients (25.1%), and 14 patients (6.9%) had serious infections. In patients treated for 108 weeks (n = 116), the median corticosteroid dose was reduced from 10.0 mg/day at OLE screening to 5.0 mg/day at week 108. Improvements in efficacy and HRQOL measures in EMBLEM were maintained in the OLE, while placebo patients exhibited similar improvements in disease activity upon a switch to epratuzumab. CONCLUSION: Open-label epratuzumab treatment was well tolerated for up to 3.2 years, and associated with sustained improvements in disease activity and HRQOL, while steroids were reduced.


Asunto(s)
Anticuerpos Monoclonales Humanizados/uso terapéutico , Inmunosupresores/uso terapéutico , Lupus Eritematoso Sistémico/tratamiento farmacológico , Corticoesteroides/uso terapéutico , Adulto , Anticuerpos Monoclonales Humanizados/efectos adversos , Brasil , Evaluación de la Discapacidad , Quimioterapia Combinada , Europa (Continente) , Femenino , Humanos , Inmunosupresores/efectos adversos , Lupus Eritematoso Sistémico/diagnóstico , Masculino , Persona de Mediana Edad , Calidad de Vida , Índice de Severidad de la Enfermedad , Encuestas y Cuestionarios , Factores de Tiempo , Resultado del Tratamiento , Estados Unidos
6.
Ann Rheum Dis ; 75(2): 323-31, 2016 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-26338095

RESUMEN

OBJECTIVES: Evaluate efficacy and safety of tabalumab, a human IgG4 monoclonal antibody that binds and neutralises membrane and soluble B-cell activating factor (BAFF) versus placebo plus standard of care (SoC) in patients with systemic lupus erythematosus (SLE). METHODS: This phase III, 52-week study randomised 1164 patients with moderate-to-severe SLE (Safety of Estrogens in Lupus Erythematosus National Assessment-SLE Disease Activity Index ≥6 at baseline). Patients received SoC plus subcutaneous injections of tabalumab or placebo, starting with a loading dose (240 mg) at week 0 and followed by 120 mg every two weeks (120 Q2W, n=387), 120 mg every four weeks (120 Q4W, n=389) or placebo Q2W (n=388). PRIMARY ENDPOINT: proportion of patients achieving SLE Responder Index 5 (SRI-5) response at week 52. RESULTS: Similar proportions of patients in each group achieved SRI-5 response at week 52 (120 Q2W: 31.8%; 120 Q4W: 35.2% and placebo: 29.3%). Key secondary endpoints were not met. In a sensitivity analysis not excluding patients who decreased antimalarials or immunosuppressants, SRI-5 response was achieved with 120 Q4W (37.0% vs 29.8% placebo; p=0.021), but not 120 Q2W (34.1%; p=0.171). Significant reductions in anti-dsDNA antibodies, increases in C3 and C4, and reductions in total B cells and immunoglobulins were observed with tabalumab. No differences were observed between treatment groups in percentage of deaths (120 Q2W: 0.8%; 120 Q4W: 0.5%; placebo: 0.5%), serious adverse events (AEs) (range 11.1-14.4%) or treatment-emergent AEs (range 81.1-82.3%). CONCLUSIONS: Tabalumab had biological activity-changes in anti-dsDNA, complement, B cells and immunoglobulins-consistent with BAFF pathway inhibition. Key clinical efficacy endpoints did not achieve statistical significance. Safety profiles were similar with tabalumab and placebo. TRIAL REGISTRATION NUMBER: NCT01196091.


Asunto(s)
Anticuerpos Monoclonales/administración & dosificación , Factor Activador de Células B/antagonistas & inhibidores , Lupus Eritematoso Sistémico/tratamiento farmacológico , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Anticuerpos Antinucleares/sangre , Anticuerpos Monoclonales Humanizados , Autoanticuerpos/sangre , Factor Activador de Células B/administración & dosificación , Linfocitos B/metabolismo , Biomarcadores/sangre , Población Negra , Complemento C3/metabolismo , Complemento C4/metabolismo , Relación Dosis-Respuesta a Droga , Método Doble Ciego , Esquema de Medicación , Femenino , Humanos , Inyecciones Subcutáneas , Lupus Eritematoso Sistémico/etnología , Masculino , Persona de Mediana Edad , Índice de Severidad de la Enfermedad , Resultado del Tratamiento , Adulto Joven
7.
Lupus ; 24(1): 42-9, 2015 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-25124676

RESUMEN

OBJECTIVE: Anti-C1q has been associated with systemic lupus erythematosus (SLE) and lupus nephritis in previous studies. We studied anti-C1q specificity for SLE (vs rheumatic disease controls) and the association with SLE manifestations in an international multicenter study. METHODS: Information and blood samples were obtained in a cross-sectional study from patients with SLE (n = 308) and other rheumatologic diseases (n = 389) from 25 clinical sites (84% female, 68% Caucasian, 17% African descent, 8% Asian, 7% other). IgG anti-C1q against the collagen-like region was measured by ELISA. RESULTS: Prevalence of anti-C1q was 28% (86/308) in patients with SLE and 13% (49/389) in controls (OR = 2.7, 95% CI: 1.8-4, p < 0.001). Anti-C1q was associated with proteinuria (OR = 3.0, 95% CI: 1.7-5.1, p < 0.001), red cell casts (OR = 2.6, 95% CI: 1.2-5.4, p = 0.015), anti-dsDNA (OR = 3.4, 95% CI: 1.9-6.1, p < 0.001) and anti-Smith (OR = 2.8, 95% CI: 1.5-5.0, p = 0.01). Anti-C1q was independently associated with renal involvement after adjustment for demographics, ANA, anti-dsDNA and low complement (OR = 2.3, 95% CI: 1.3-4.2, p < 0.01). Simultaneously positive anti-C1q, anti-dsDNA and low complement was strongly associated with renal involvement (OR = 14.9, 95% CI: 5.8-38.4, p < 0.01). CONCLUSIONS: Anti-C1q was more common in patients with SLE and those of Asian race/ethnicity. We confirmed a significant association of anti-C1q with renal involvement, independent of demographics and other serologies. Anti-C1q in combination with anti-dsDNA and low complement was the strongest serological association with renal involvement. These data support the usefulness of anti-C1q in SLE, especially in lupus nephritis.


Asunto(s)
Anticuerpos Antinucleares/sangre , Complemento C1q/inmunología , ADN/inmunología , Lupus Eritematoso Sistémico/inmunología , Adulto , Estudios de Casos y Controles , Proteínas del Sistema Complemento/deficiencia , Estudios Transversales , Femenino , Humanos , Lupus Eritematoso Sistémico/etnología , Nefritis Lúpica/etnología , Nefritis Lúpica/inmunología , Masculino , Persona de Mediana Edad , Proteinuria/sangre , Enfermedades Reumáticas/inmunología , Sensibilidad y Especificidad , Adulto Joven
8.
Arthritis Care Res (Hoboken) ; 66(9): 1374-9, 2014 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-24497416

RESUMEN

OBJECTIVE: The Medical Outcomes Study Short Form 36 (SF-36) is recommended to assess quality of life (QOL) in systemic lupus erythematosus (SLE). The aim of the current study was to assess QOL over time in the first 5 years of a multicenter inception cohort of patients with SLE. METHODS: An inception SLE cohort was assembled according to a standardized protocol between 2000 and 2012. In addition to clinical and laboratory assessments, patients completed the SF-36 at yearly intervals. Only patients who had ≥5 completed QOL questionnaires were included in these analyses. Generalized estimating equation models were run separately for each of the 8 subscales and for the physical and mental component summary scores, adjusting for repeated measures by patients. RESULTS: A total of 495 patients were included. The mean ± SD disease duration at the first visit was 5.3 ± 4.1 months. The mean ± SD age at enrollment was 35.8 ± 13.2 years. All 8 subscales and the 2 summary scores showed improvement in the first 2 years from enrollment. Between years 2 and 5, none of the subscales or summary scores showed any change. Minimum clinically important improvement was achieved by 35-56% of the patients and was influenced by demographic and disease factors. CONCLUSION: Unlike late-stage lupus, where QOL is stable over time, in patients with early disease, all subscales improve in early followup up to 2 years. Therefore, the SF-36 may be a sensitive outcome measure in early disease in patients with SLE.


Asunto(s)
Lupus Eritematoso Sistémico/diagnóstico , Calidad de Vida , Adulto , Estudios de Cohortes , Progresión de la Enfermedad , Femenino , Estado de Salud , Humanos , Masculino , Persona de Mediana Edad , Índice de Severidad de la Enfermedad , Encuestas y Cuestionarios , Adulto Joven
9.
Actas Urol Esp ; 36(8): 461-6, 2012 Sep.
Artículo en Español | MEDLINE | ID: mdl-22824081

RESUMEN

INTRODUCTION: We sought to identify the prevalence, presentation, treatment, and prognosis of acute arthritis secondary to intravesical bacilli Calmette-Guérin (BCG) therapy for bladder cancer. METHODS: We performed a structured, systematic review of the English language literature pertaining to BCG and reactive arthritis among bladder cancer patients. We extracted data pertaining to prevalence, presentation, management, and prognosis. RESULTS: We extracted 23 individual case reports and 4 review articles. Thirty-nine patients -31 (80%) male and 8 (20%) female- were described in these publications; we also identified 1 patient from our institution. Although prevalence estimates of reactive arthritis range from 0.5 to 1.0% of all bladder cancer patients receiving BCG, the true prevalence remains unclear. Polyarthritis (68%) and fever (58%) were the most common presenting symptoms. Among patients presenting with joint pain, the knees (41%), ankles (26%), and wrists (19%) were most often affected. The most common time of presentation was immediately following the 4th instillation of a 6-week induction course (25%). Initial therapy in 100% of patients was discontinuation of BCG. Other therapies included nonsteroidal anti-inflammatory drugs (NSAIDs) (25%); steroids (8%); anti-tubercular medications (8%); and combined NSAIDs, steroids, and anti-tubercular medications (20%). CONCLUSIONS: Reactive arthritis is an infrequent but potentially severe complication of intravesical BCG for bladder cancer that typically presents with polyarthritis and fever during induction. The most common treatments include immediate discontinuation of BCG and systemic anti-inflammatory therapy. Further studies are needed to determine prevalence, pathophysiology, and long-term prognosis.


Asunto(s)
Adyuvantes Inmunológicos/efectos adversos , Artritis Reactiva/inducido químicamente , Vacuna BCG/efectos adversos , Neoplasias de la Vejiga Urinaria/tratamiento farmacológico , Femenino , Humanos , Masculino , Neoplasias de la Vejiga Urinaria/diagnóstico , Neoplasias de la Vejiga Urinaria/terapia
10.
Arthritis Care Res (Hoboken) ; 64(1): 132-7, 2012 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-21954226

RESUMEN

OBJECTIVE: We describe disease activity, damage, and the accrual of key autoantibodies in an inception systemic lupus erythematosus (SLE) cohort. METHODS: The Systemic Lupus International Collaborating Clinics (SLICC) International Research Network, comprising 27 centers from 11 countries, has followed an inception cohort of SLE patients yearly according to a standardized protocol. Of these patients, 298 were followed for a minimum of 5 years and constitute the study population. Disease activity was assessed using the SLE Disease Activity Index 2000 (SLEDAI-2K) and damage was assessed using the SLICC/American College of Rheumatology Damage Index (SDI). Antinuclear antibody (ANA), anti-DNA, and anticardiolipin antibody (aCL) levels and lupus anticoagulant were assessed yearly. Descriptive statistics were generated and repeated-measures general linear models were used to evaluate SLEDAI-2K and SDI over time between whites and nonwhites. RESULTS: Of the 298 patients, 87% were women, 55% were white, 12% were African American, 14% were Asian, 16% were Hispanic, and 2% were categorized as "other." At enrollment, the mean age was 35.3 years, the mean SLEDAI-2K score was 5.9, and the mean disease duration was 5.5 months. Mean SLEDAI-2K scores decreased in the first year and then remained low. SLEDAI-2K scores were significantly lower at each year in whites compared to nonwhites. Mean SDI scores increased progressively over 5 years; there was no significant difference between whites and nonwhites. As expected, ANA positivity was high and anti-DNA positivity was relatively low at enrollment, and both increased over 5 years. Although lupus anticoagulant increased slightly over 5 years, aCL positivity did not. CONCLUSION: Disease activity in newly diagnosed patients decreases over their first 5 years, while damage increases. Antibody positivity ran variable courses over this period.


Asunto(s)
Lupus Eritematoso Sistémico/diagnóstico , Corticoesteroides/uso terapéutico , Adulto , Negro o Afroamericano/estadística & datos numéricos , Anticuerpos Anticardiolipina/sangre , Anticuerpos Antinucleares/sangre , Pueblo Asiatico/estadística & datos numéricos , Biomarcadores/sangre , Estudios de Cohortes , Costo de Enfermedad , ADN/inmunología , Progresión de la Enfermedad , Europa (Continente)/epidemiología , Femenino , Hispánicos o Latinos/estadística & datos numéricos , Humanos , Modelos Lineales , Inhibidor de Coagulación del Lupus/sangre , Lupus Eritematoso Sistémico/sangre , Lupus Eritematoso Sistémico/tratamiento farmacológico , Lupus Eritematoso Sistémico/etnología , Lupus Eritematoso Sistémico/inmunología , Masculino , Persona de Mediana Edad , América del Norte/epidemiología , Sistema de Registros , Índice de Severidad de la Enfermedad , Factores de Tiempo , Población Blanca/estadística & datos numéricos , Adulto Joven
11.
Ann Rheum Dis ; 70(10): 1726-32, 2011 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-21893582

RESUMEN

OBJECTIVE: Neuropsychiatric events occur unpredictably in systemic lupus erythematosus (SLE) and most biomarker associations remain to be prospectively validated. This study examined a disease inception cohort of 1047 SLE patients to determine which autoantibodies at enrolment predicted subsequent neuropsychiatric events. METHODS: Patients with a recent SLE diagnosis were assessed prospectively for up to 10 years for neuropsychiatric events using the American College of Rheumatology case definitions. Decision rules of graded stringency determined whether neuropsychiatric events were attributable to SLE. Associations between the first neuropsychiatric event and baseline autoantibodies (lupus anticoagulant (LA), anticardiolipin, anti-ß(2) glycoprotein-I, anti-ribosomal P and anti-NR2 glutamate receptor) were tested by Cox proportional hazards regression. RESULTS: Disease duration at enrolment was 5.4 ± 4.2 months, follow-up was 3.6 ± 2.6 years. Patients were 89.1% female with mean (±SD) age 35.2 ± 13.7 years. 495/1047 (47.3%) developed one or more neuropsychiatric event (total 917 events). Neuropsychiatric events attributed to SLE were 15.4% (model A) and 28.2% (model B). At enrolment 21.9% of patients had LA, 13.4% anticardiolipin, 15.1% anti-ß(2) glycoprotein-I, 9.2% anti-ribosomal P and 13.7% anti-NR2 antibodies. LA at baseline was associated with subsequent intracranial thrombosis (total n=22) attributed to SLE (model B) (HR 2.54, 95% CI 1.08 to 5.94). Anti-ribosomal P antibody was associated with subsequent psychosis (total n=14) attributed to SLE (model B) (HR 3.92, 95% CI 1.23 to 12.5, p=0.02). Other autoantibodies did not predict neuropsychiatric events. CONCLUSION: In a prospective study of 1047 recently diagnosed SLE patients, LA and anti-ribosomal P antibodies are associated with an increased future risk of intracranial thrombosis and lupus psychosis, respectively.


Asunto(s)
Autoanticuerpos/sangre , Biomarcadores/sangre , Lupus Eritematoso Sistémico/complicaciones , Lupus Eritematoso Sistémico/inmunología , Trastornos Mentales/diagnóstico , Adulto , Métodos Epidemiológicos , Femenino , Humanos , Trombosis Intracraneal/epidemiología , Trombosis Intracraneal/etiología , Inhibidor de Coagulación del Lupus/sangre , Lupus Eritematoso Sistémico/diagnóstico , Masculino , Trastornos Mentales/epidemiología , Trastornos Mentales/etiología , Persona de Mediana Edad , Pronóstico , Trastornos Psicóticos/epidemiología , Trastornos Psicóticos/etiología , Proteínas Ribosómicas/inmunología , Adulto Joven
12.
Lupus ; 20(3): 250-5, 2011 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-21362750

RESUMEN

Systemic lupus erythematosus (SLE) is characterized by multiple autoantibodies and complement activation. Recent studies have suggested that anti-nuclear antibody (ANA) positivity may disappear over time in some SLE patients. Anti-double-stranded DNA (dsDNA) antibody titers and complement levels may vary with time and immunosuppressive treatment, while the behavior of anti-extractable nuclear antigen (ENA) over time is less well understood. This study sought to determine the correlation between historical autoantibody tests and current testing in patients with SLE. Three hundred and two SLE patients from the ACR Reclassification of SLE (AROSE) database with both historical and current laboratory data were selected for analysis. The historical laboratory data were compared with the current autoantibody tests done at the reference laboratory and tested for agreement using percent agreement and Kappa statistic. Serologic tests included ANA, anti-dsDNA, anti-Smith, anti-ribonucleoprotein (RNP), anti-Ro, anti-La, rheumatoid factor (RF), C3 and C4. Among those historically negative for immunologic markers, a current assessment of the markers by the reference laboratory generally yielded a low percentage of additional positives (3-13%). However, 6/11 (55%) of those historically negative for ANA were positive by the reference laboratory, and the reference laboratory test also identified 20% more patients with anti-RNP and 18% more with RF. Among those historically positive for immunologic markers, the reference laboratory results were generally positive on the same laboratory test (range 57% to 97%). However, among those with a history of low C3 or C4, the current reference laboratory results indicated low C3 or C4 a low percentage of the time (18% and 39%, respectively). ANA positivity remained positive over time, in contrast to previous studies. Anti-Ro, La, RNP, Smith and anti-dsDNA antibodies had substantial agreement over time, while complement had less agreement. This variation could partially be explained by variability of the historical assays, which were done by local laboratories over varying periods of time. Variation in the results for complement, however, is more likely to be explained by response to treatment. These findings deserve consideration in the context of diagnosis and enrolment in clinical trials.


Asunto(s)
Autoanticuerpos/sangre , Autoanticuerpos/inmunología , Inmunoensayo/historia , Inmunoensayo/métodos , Lupus Eritematoso Sistémico/inmunología , Anticuerpos Antinucleares/sangre , Anticuerpos Antinucleares/inmunología , Biomarcadores/sangre , Ensayos Clínicos como Asunto , Historia del Siglo XX , Historia del Siglo XXI , Humanos
13.
Ann Rheum Dis ; 70(6): 961-7, 2011 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-21342917

RESUMEN

OBJECTIVE: To examine change in health-related quality of life in association with clinical outcomes of neuropsychiatric events in systemic lupus erythematosus (SLE). METHODS: An international study evaluated newly diagnosed SLE patients for neuropsychiatric events attributed to SLE and non-SLE causes. The outcome of events was determined by a physician-completed seven-point scale and compared with patient-completed Short Form 36 (SF-36) health survey questionnaires. Statistical analysis used linear mixed-effects regression models with patient-specific random effects. RESULTS: 274 patients (92% female; 68% Caucasian), from a cohort of 1400, had one or more neuropsychiatric event in which the interval between assessments was 12.3 ± 2 months. The overall difference in change between visits in mental component summary (MCS) scores of the SF-36 was significant (p<0.0001) following adjustments for gender, ethnicity, centre and previous score. A consistent improvement in neuropsychiatric status (N=295) was associated with an increase in the mean (SD) adjusted MCS score of 3.66 (0.89) in SF-36 scores. Between paired visits when the neuropsychiatric status consistently deteriorated (N=30), the adjusted MCS score decreased by 4.00 (1.96). For the physical component summary scores the corresponding changes were +1.73 (0.71) and -0.62 (1.58) (p<0.05), respectively. Changes in SF-36 subscales were in the same direction (p<0.05; with the exception of role physical). Sensitivity analyses confirmed these findings. Adjustment for age, education, medications, SLE disease activity, organ damage, disease duration, attribution and characteristics of neuropsychiatric events did not substantially alter the results. CONCLUSION: Changes in SF-36 summary and subscale scores, in particular those related to mental health, are strongly associated with the clinical outcome of neuropsychiatric events in SLE patients.


Asunto(s)
Vasculitis por Lupus del Sistema Nervioso Central/diagnóstico , Índice de Severidad de la Enfermedad , Adulto , Femenino , Humanos , Vasculitis por Lupus del Sistema Nervioso Central/psicología , Vasculitis por Lupus del Sistema Nervioso Central/terapia , Masculino , Trastornos Mentales/etiología , Persona de Mediana Edad , Pronóstico , Estudios Prospectivos , Calidad de Vida , Escuelas de Salud Pública , Resultado del Tratamiento , Adulto Joven
14.
Lupus ; 20(5): 453-62, 2011 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-21148601

RESUMEN

The Lupus Foundation of America (LFA) convened an international working group to obtain a consensus definition of disease flare in lupus. With help from the Paediatric Rheumatology International Trials Organization (PRINTO), two web-based Delphi surveys of physicians were conducted. Subsequently, the LFA held a second consensus conference followed by a third Delphi survey to reach a community-wide agreement for flare definition. Sixty-nine of the 120 (57.5%) polled physicians responded to the first survey. Fifty-nine of the responses were available to draft 12 preliminary statements, which were circulated in the second survey. Eighty-seven of 118 (74%) physicians completed the second survey, with an agreement of 70% for 9/12 (75%) statements. During the second conference, three alternative flare definitions were consolidated and sent back to the international community. One hundred and sixteen of 146 (79.5%) responded, with agreement by 71/116 (61%) for the following definition: "A flare is a measurable increase in disease activity in one or more organ systems involving new or worse clinical signs and symptoms and/or laboratory measurements. It must be considered clinically significant by the assessor and usually there would be at least consideration of a change or an increase in treatment." The LFA proposes this definition for lupus flare on the basis of its high face validity.


Asunto(s)
Lupus Eritematoso Sistémico/diagnóstico , Terminología como Asunto , Enfermedad Aguda , Técnica Delphi , Humanos , Internacionalidad
15.
Ann Rheum Dis ; 70(1): 54-9, 2011 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-20833737

RESUMEN

AIMS: To compare the British Isles Lupus Assessment Group (BILAG) 2004, the Safety of Estrogens in Lupus Erythematosus National Assessment (SELENA) flare index (SFI) and physician's global assessment (PGA) in assessing flares of disease activity in patients with systemic lupus erythematosus (SLE). METHODS: Sixteen patients with active SLE were assessed by a panel of 16 rheumatologists. The order in which the patients were seen was randomised using a 4×4 Latin square design. Each patient's flare status was determined at each assessment using the BILAG 2004 activity index; the SFI and a PGA. A group of five specialists designated each patient into severe, moderate, mild or no flare categories. RESULTS: The rate of complete agreement (95% CI) of the four individual examining physicians for any flare versus no flare was 81% (55% to 94%), 75% (49% to 90%) and 75% (49% to 90%) for the BILAG 2004 index, SELENA flare instrument and PGA, respectively. The overall agreement between flare defined by BILAG 2004 and the SFI was 81% and when type of flare was considered was 52%. Intraclass correlation coefficients (95% CI), as a measure of internal reliability, were 0.54 (0.32 to 0.78) for BILAG 2004 flare compared with 0.21 (0.08 to 0.48) for SELENA flare and 0.18 (0.06 to 0.45) for PGA. Severe flare was associated with good agreement between the indices but mild/moderate flare was much less consistent. CONCLUSIONS: The assessment of flare in patients with SLE is challenging. No flare and severe flare are identifiable but further work is needed to optimise the accurate 'capture' of mild and moderate flares.


Asunto(s)
Lupus Eritematoso Sistémico/diagnóstico , Índice de Severidad de la Enfermedad , Antirreumáticos/uso terapéutico , Humanos , Lupus Eritematoso Sistémico/tratamiento farmacológico , Variaciones Dependientes del Observador , Pronóstico , Reproducibilidad de los Resultados
16.
Arthritis Care Res (Hoboken) ; 62(6): 881-7, 2010 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-20535799

RESUMEN

OBJECTIVE: To describe vascular events during an 8-year followup in a multicenter systemic lupus erythematosus (SLE) inception cohort and their attribution to atherosclerosis. METHODS: Clinical data, including comorbidities, were recorded yearly. Vascular events were recorded and attributed to atherosclerosis or not. All of the events met standard clinical criteria. Factors associated with atherosclerotic vascular events were analyzed using descriptive statistics, t-tests, and chi-square tests. Stepwise multivariate logistic regression was used to assess the association of factors with vascular events attributed to atherosclerosis. RESULTS: Since 2000, 1,249 patients have been entered into the cohort. There have been 97 vascular events in 72 patients, including: myocardial infarction (n = 13), angina (n = 15), congestive heart failure (n = 24), peripheral vascular disease (n = 8), transient ischemic attack (n = 13), stroke (n = 23), and pacemaker insertion (n = 1). Fifty of the events were attributed to active lupus, 31 events in 22 patients were attributed to atherosclerosis, and 16 events were attributed to other causes. The mean +/- SD time from diagnosis to the first atherosclerotic event was 2.0 +/- 1.5 years. Compared with patients followed for 2 years without atherosclerotic events (n = 615), at enrollment, patients with atherosclerotic vascular events were more frequently white, men, older at diagnosis of SLE, obese, smokers, hypertensive, and had a family history of coronary artery disease. On multivariate analysis, only male sex and older age at diagnosis were associated factors. CONCLUSION: In an inception cohort with SLE followed for up to 8 years, there were 97 vascular events, but only 31 were attributable to atherosclerosis. Patients with atherosclerotic events were more likely to be men and to be older at diagnosis of SLE.


Asunto(s)
Aterosclerosis/complicaciones , Aterosclerosis/epidemiología , Internacionalidad , Lupus Eritematoso Sistémico/complicaciones , Lupus Eritematoso Sistémico/epidemiología , Adulto , Anciano , Aterosclerosis/diagnóstico , Estudios de Cohortes , Femenino , Estudios de Seguimiento , Humanos , Lupus Eritematoso Sistémico/diagnóstico , Masculino , Persona de Mediana Edad , Sistema de Registros , Adulto Joven
17.
Ann Rheum Dis ; 69(3): 529-35, 2010 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-19359262

RESUMEN

OBJECTIVES: To determine the frequency, accrual, attribution and outcome of neuropsychiatric (NP) events and impact on quality of life over 3 years in a large inception cohort of patients with systemic lupus erythematosus (SLE). METHODS: The study was conducted by the Systemic Lupus International Collaborating Clinics. Patients were enrolled within 15 months of SLE diagnosis. NP events were identified using the American College of Rheumatology case definitions, and decision rules were derived to determine the proportion of NP disease attributable to SLE. The outcome of NP events was recorded and patient-perceived impact determined by the SF-36. RESULTS: 1206 patients (89.6% female) with a mean (+/-SD) age of 34.5+/-13.2 years were included in the study. The mean disease duration at enrollment was 5.4+/-4.2 months. Over a mean follow-up of 1.9+/-1.2 years, 486/1206 (40.3%) patients had > or =1 NP events, which were attributed to SLE in 13.0-23.6% of patients using two a priori decision rules. The frequency of individual NP events varied from 47.1% (headache) to 0% (myasthenia gravis). The outcome was significantly better for those NP events attributed to SLE, especially if they occurred within 1.5 years of the diagnosis of SLE. Patients with NP events, regardless of attribution, had significantly lower summary scores for both mental and physical health over the study. CONCLUSIONS: NP events in patients with SLE are of variable frequency, most commonly present early in the disease course and adversely impact patients' quality of life over time. Events attributed to non-SLE causes are more common than those due to SLE, although the latter have a more favourable outcome.


Asunto(s)
Lupus Eritematoso Sistémico/complicaciones , Trastornos Mentales/complicaciones , Enfermedades del Sistema Nervioso/complicaciones , Adulto , Métodos Epidemiológicos , Femenino , Humanos , Lupus Eritematoso Sistémico/diagnóstico , Masculino , Trastornos Mentales/diagnóstico , Persona de Mediana Edad , Enfermedades del Sistema Nervioso/diagnóstico , Calidad de Vida , Adulto Joven
18.
Arthritis Rheum ; 59(5): 721-9, 2008 May 15.
Artículo en Inglés | MEDLINE | ID: mdl-18438902

RESUMEN

OBJECTIVE: To determine the short-term outcome of neuropsychiatric (NP) events upon enrollment into an international inception cohort of patients with systemic lupus erythematosus (SLE). METHODS: The study was performed by the Systemic Lupus International Collaborating Clinics. Patients were enrolled within 15 months of SLE diagnosis and NP events were characterized using the American College of Rheumatology case definitions. Decision rules were derived to identify NP events attributable to SLE. Physician outcome scores of NP events and patient-derived mental component summary (MCS) and physical component summary (PCS) scores of the Short Form 36 were recorded. RESULTS: There were 890 patients (88.7% female) with a mean +/- SD age of 33.8 +/- 13.4 years and mean disease duration of 5.3 +/- 4.2 months. Within the enrollment window, 271 (33.5%) of 890 patients had at least 1 NP event encompassing 15 NP syndromes. NP events attributed to SLE varied from 16.5% to 33.9% using alternate attribution models and occurred in 6.0-11.5% of patients. Outcome scores for NP events attributed to SLE were significantly better than for NP events due to non-SLE causes. Higher global disease activity was associated with worse outcomes. MCS scores were lower in patients with NP events, regardless of attribution, and were also lower in patients with diffuse and central NP events. There was a significant association between physician outcome scores and patient MCS scores only for NP events attributed to SLE. CONCLUSION: In SLE patients, the short-term outcome of NP events is determined by both the characteristics and attribution of the events.


Asunto(s)
Enfermedades del Sistema Nervioso Central/epidemiología , Cooperación Internacional , Lupus Eritematoso Sistémico/psicología , Adulto , Estudios de Cohortes , Comorbilidad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Pruebas Neuropsicológicas
19.
Arthritis Rheum ; 58(3): 843-53, 2008 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-18311802

RESUMEN

OBJECTIVE: To examine, in an inception cohort of systemic lupus erythematosus (SLE) patients, the association between neuropsychiatric (NP) events and anti-ribosomal P (anti-P), antiphospholipid (lupus anticoagulant [LAC], anticardiolipin), anti-beta2-glycoprotein I, and anti-NR2 glutamate receptor antibodies. METHODS: NP events were identified using the American College of Rheumatology case definitions and clustered into central/peripheral and diffuse/focal events. Attribution of NP events to SLE was determined using decision rules of differing stringency. Autoantibodies were measured without knowledge of NP events or their attribution. RESULTS: Four hundred twelve patients were studied (87.4% female; mean +/- SD age 34.9 +/- 13.5 years, mean +/- SD disease duration 5.0 +/- 4.2 months). There were 214 NP events in 133 patients (32.3%). The proportion of NP events attributed to SLE varied from 15% to 36%. There was no association between autoantibodies and NP events overall. However, the frequency of anti-P antibodies in patients with central NP events attributed to SLE was 4 of 20 (20%), versus 3 of 107 (2.8%) in patients with other NP events and 24 of 279 (8.6%) in those with no NP events (P = 0.04). Among patients with diffuse NP events, 3 of 11 had anti-P antibodies (27%), compared with 4 of 111 patients with other NP events (3.6%) and 24 of 279 of those with no NP events (8.6%) (P = 0.02). Specific clinical-serologic associations were found between anti-P and psychosis attributed to SLE (P = 0.02) and between LAC and cerebrovascular disease attributed to SLE (P = 0.038). There was no significant association between other autoantibodies and NP events. CONCLUSION: Clinically distinct NP events attributed to SLE and occurring around the time of diagnosis were found to be associated with anti-P antibodies and LAC. This suggests that there are different autoimmune pathogenetic mechanisms, although low sensitivity limits the clinical application of testing for these antibodies.


Asunto(s)
Autoanticuerpos/sangre , Inhibidor de Coagulación del Lupus/inmunología , Vasculitis por Lupus del Sistema Nervioso Central/inmunología , Vasculitis por Lupus del Sistema Nervioso Central/psicología , Adulto , Anticuerpos Anticardiolipina/sangre , Estudios de Cohortes , Femenino , Humanos , Cooperación Internacional , Vasculitis por Lupus del Sistema Nervioso Central/diagnóstico , Masculino , Persona de Mediana Edad , Receptores de Glutamato/inmunología , Proteínas Ribosómicas/inmunología , beta 2 Glicoproteína I/inmunología
20.
Rheumatology (Oxford) ; 47(3): 334-8, 2008 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-18238794

RESUMEN

OBJECTIVES: Androgen deficiency has been associated with the development of systemic lupus erythematosus (SLE). The aim of this study was to test the efficacy of testosterone patches vs placebo in female SLE patients with baseline mild-to-moderate disease activity in a randomized, double-blind, single-centre placebo-controlled trial. METHODS: Patients received testosterone (150 microg) or placebo transdermal patches for 12 weeks. Patients were assessed at 4-weekly intervals for disease activity using the Safety of Oestrogens in Lupus Erythematosus National Assessment-SLE Disease Activity Index (SELENA-SLEDAI), Systemic Lupus Activity Measure-Revised (SLAM-R) and The British Isles Lupus Assessment Group (BILAG) indices, physician global assessment (PGA), quality of life using the SF-36 survey and sexual functioning using the Derogatis score. Data were analysed using two sample t-tests to compare the mean difference from baseline to week 12 in the testosterone patch and placebo groups. RESULTS: Thirty-four patients were recruited in to each group. There was no significant baseline difference between the groups in age, race or marital status. There was no significant difference between treatment groups in the mean change in SELENA-SLEDAI (0.547 +/- 3.72, P > 0.60), nor in PGA or BILAG system scores. The mean change in SLAM-R score was statistically different (2.06, S.D. 3.3, P = 0.01) but was not considered clinically meaningful. Health transition also showed a small change (P < 0.03). There was no significant difference in the Derogatis scores or toxicity. CONCLUSIONS: Testosterone patches were safe but did not significantly affect disease activity, quality of life or sexual functioning. Increased use of steroids in the placebo group may have confounded the study results.


Asunto(s)
Preparaciones de Acción Retardada/administración & dosificación , Lupus Eritematoso Sistémico/diagnóstico , Lupus Eritematoso Sistémico/tratamiento farmacológico , Testosterona/uso terapéutico , Administración Cutánea , Adulto , Relación Dosis-Respuesta a Droga , Método Doble Ciego , Femenino , Estudios de Seguimiento , Humanos , Persona de Mediana Edad , Probabilidad , Valores de Referencia , Medición de Riesgo , Índice de Severidad de la Enfermedad , Absorción Cutánea/efectos de los fármacos , Resultado del Tratamiento
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