Search for: rheumatoid arthritis    methotrexate    autoimmune disease    biomarker    gene expression    GWAS    HLA genes    non-HLA genes   

ID PMID Title PublicationDate abstract
18232100 Comparison functioning and quality of life of patients with osteoarthritis and rheumatoid 2007 PURPOSE: The aim of this study was to assess the quality of life of the osteoarthritis (OA) and rheumatoid arthritis (RA) patients of Outpatient Clinic Rehabilitation in Poznań. MATERIAL AND METHODS: The study consisted of 97 OA patients, including 86 women and 11 men. Almost 123 patients with RA included of 102 women and 21 men. The mean age of the treated patients with OA was 11.50 and 11.10 years for RA patients. The Polish version of the Arthritis Impact Measurement Scales-2 (AIMS-2) was used to assess the quality of life. AIMS-2 scores range from 0-10, with 0 representing good quality of life, 10 representing poor quality of life. RESULTS: It was showed that the mean score on the AIMS-2 for OA patients was: physical--3.53, affect--4.42, symptom--6.74, social interaction--3.33, role--4.20. Mean score on the AIMS-2 for RA patients was: physical--3.73, affect--4.48, symptom--7.09, social interaction--3.45, role--3.63. The quality of life depended on the sex of these patients. Women of OA and RA patients scored significantly higher in the physical state and symptom then men. Younger patients and suffering shorter than 5 years demonstrated higher evaluation of quality of life in the physical state. The assessment in most of the subscales of the AIMS-2 correlated significantly with Pain, Morning Stiffness and Grip Strength for OA and RA patients. CONCLUSION: This study showed that quality of life of OA and RA depends on gender, age and clinical variables.
18504927 Rheumatoid arthritis and thyroid abnormalities. 2007 Relationships between rheumatoid arthritis (RA) and the thyroid gland have been studied extensively for a long time. The studies of this problem have focused mainly on: (a) the functional and immune thyroid gland abnormalities in patients with previous history of RA, and (b) joint changes in patients with previous autoimmune thyroid diseases. Thyroid dysfunctions in RA patients are most often of autoimmune nature; they are accompanied by elevated thyroid autoantibody titers. The RA patients usually present with eu-, hypo- or hyperthyroid manifestations. The concurrent affection of joints and thyroid gland is related most probably to a genetic predisposition determined by the affiliation to a certain HLA type, most often HLA-DR. Joint abnormalities in thyroid gland disorders may be of different character (generally polyarthritis) and they are due to hypothyroidism. One possible explanation of the presence of two or more autoimmune diseases in one individual is microchimerism - the presence of a small number of fetal cells in the mother as well as maternal cells in the fetus. These data provide grounds for tests to be performed in all cases of RA so that thyroid autoantibodies and thyroid dysfunctions can be detected early and treated adequately.
18157560 The burden of rheumatoid arthritis and access to treatment: determinants of access. 2008 Jan As part of the study "The Burden of Rheumatoid Arthritis (RA) and Patient Access to Treatment", this paper reviews the impact on access to RA drugs of the approval processes, pricing and funding decisions and times to market (access) in different countries. In addition, an overview of health technology assessments (HTA) and the economic literature related to RA treatments is provided. The time from approval to market access ranged from immediate to over 500 days in the countries included in the study. A total of 55 HTA reports were identified, 40 of them in the period between 2002 and 2006; 29 were performed by European HTA agencies, 14 in Canada and 7 in the United States. A total of 239 economic evaluations related to RA were identified in a specialized health economic database (HEED).
17694258 Comparison of in-office magnetic resonance imaging versus conventional radiography in dete 2007 The objective of this study was to compare standard hand radiographs with in-office 0.2 T magnetic resonance imaging (MRI) in monitoring response to therapy in patients with rheumatoid arthritis (RA) who were receiving infliximab, to evaluate the frequency and location of erosions, and to determine if there were differences in outcome based on disease duration at baseline. Patients who satisfied the American College of Rheumatology criteria for RA and were receiving infliximab therapy were evaluated with a baseline and 1-year follow-up MRI. Magnetic resonance images were interpreted by two blinded, board-certified radiologists. Bone erosions were identified as well-defined defects extending through the cortical margin. The mean age of the 48 patients was 58.5 years. The median infliximab dosage was 4 mg/kg. Baseline data showed that 41 patients had abnormal MRIs. The mean time between the baseline and follow-up MRI examinations was 10.5 months. Follow-up MRI revealed regression in 11 patients. Thirty-one patients had both MRIs and radiographs. Magnetic resonance imaging was approximately twice as sensitive as radiography in detecting erosions at baseline. In-office MRI was useful in monitoring disease response after the initiation of infliximab treatment. Magnetic resonance imaging is potentially a very valuable diagnostic tool and prognostic indicator for use in patients with RA.
17013871 Disability, social support, and distress in rheumatoid arthritis: results from a thirteen- 2006 Oct 15 OBJECTIVE: To examine the strength and stability of the relationships between disease-related factors (joint tenderness, pain, and functional disability), social support, and distress over time, and to investigate to what extent disease-related factors and social support can predict distress in short-term and long-term rheumatoid arthritis (RA). METHODS: The study was a Dutch extension of the European Research on Incapacitating Diseases and Social Support and started with 292 patients. After 5 waves of data collection, 129 patients remained. Composite measures were computed following the area under the curve approach. Interaction terms were computed between functional disability and social support satisfaction. Correlational and hierarchical regression analyses were performed. RESULTS: In patients with short-term RA, disease-related factors and social support were important in determining distress. Also, a buffering effect of social companionship was found. In total, 51% of the variance in distress in short-term RA could be explained primarily by mean distress over the previous years. In patients with long-term RA, disease-related factors remained important in determining distress, but to a lesser extent. Seventeen percent of the variance in distress in long-term RA could be explained primarily by mean distress over the years before. CONCLUSION: During the course of the disease, patients may learn to adjust to their disease and its consequences and are able to maintain a normal distress level. The effect of the disease on psychological distress decreased over the years. Some support for the buffering hypothesis of social support was found in short-term RA, but not in long-term RA.
16447237 The LUNDEX, a new index of drug efficacy in clinical practice: results of a five-year obse 2006 Feb OBJECTIVE: To describe the use of the LUNDEX, a new index for comparing the long-term efficacy and tolerability of biologic therapies in rheumatoid arthritis (RA) patients treated in clinical practice. METHODS: Patients (n = 949) with active RA that had not responded to at least 2 disease-modifying antirheumatic drugs (DMARDs) including methotrexate, in whom biologic therapy was being initiated, were included in a structured clinical followup protocol. The protocol included collection of data on diagnosis, disease duration, previous and ongoing DMARD treatment, and dates on which biologic treatment was started and terminated. In addition, data on efficacy measures used for calculating validated response criteria, i.e., the European League Against Rheumatism and American College of Rheumatology response criteria, were collected at fixed time points. Data were prospectively registered from March 1999 through January 2004. The LUNDEX, a new index combining the proportion of patients fulfilling a selected response criteria set with the proportion of patients adhering to a particular therapy, was designed to compare the efficacy of the different therapies. RESULTS: Etanercept had higher overall LUNDEX values compared with infliximab, mostly because of a lower rate of adherence to therapy with infliximab. The relationship between the drugs was consistent irrespective of the response criteria used. CONCLUSION: The LUNDEX is a valuable tool for evaluating drug efficacy in observational studies. It has the advantage of integrating clinical response as well as adherence to therapy in a composite value. Moreover, the LUNDEX has a practical and potentially universal application independent of diagnosis and response criteria.
16904829 Coping with rheumatoid arthritis pain in daily life: within-person analyses reveal hidden 2006 Dec 15 This study examined the association between history of depression and day-to-day coping with rheumatoid arthritis (RA) pain. The sample was 188 RA-diagnosed participants, 73 of whom were identified by a structured clinical interview as having a history of major depression. None had current major depression. All participated in a 30-day prospective study in which they made end-of-day ratings of their arthritis pain, the strategies for how they coped with their pain, their appraisals of daily pain, and daily mood. Hierarchical linear models evaluated whether individuals with and without depression history differed in their average pain and the other daily measures; and separately, whether they differed in their within-person associations between pain and the daily measures (e.g., the day-to-day contingency between pain and mood). All analyses controlled for current mild depressive symptoms, neuroticism, and age. Previously depressed individuals were indistinguishable from their never depressed peers in their average pain and the other daily measures; however, the previously depressed exhibited significantly stronger associations between pain and several aspects of their daily emotional experience, suggesting more pain-contingent well-being. For individuals with a history of depression, increases in daily pain corresponded with more frequent efforts to cope with their pain by venting their emotions, significantly stronger impairments in mood, and, if they were also presently distressed, reduced perceptions of control over their pain, compared to the never depressed. Patterns suggest that formerly depressed individuals exhibit a hidden vulnerability in how they manage chronic pain. This vulnerability is best revealed by a daily process approach.
17219061 Ganoderma lucidum polysaccharide peptide reduced the production of proinflammatory cytokin 2007 Jul The aim of the current study was to elucidate the potential therapeutic effect of Ganoderma lucidum polysaccharide peptide (GL-PP) in rheumatoid arthritis (RA). The effects of GL-PP on cell proliferation and cytokine production were studied in RA synovial fibroblasts (RASF). GL-PP significantly inhibited the proliferation of RASF. Following the incubation with GL-PP, production of interleukin (IL)-6 and monocyte chemoattractant protein (MCP)-1 in RASF were significantly increased as expressed as percentage change from basal values. However, the actual effects were minimal due to the low basal values. When RASF were activated by IL-1beta or lipopolysaccharides, IL-8 and MCP-1 production increased many folds. GL-PP significantly suppressed their productions. The inhibitory effects of GL-PP on cytokine production in RASF were at least in part, by inhibiting the nuclear factor-kappa B (NF-kappaB) transcription pathway. Our results demonstrated that GL-PP had the unique ability to modulate cytokine production in RASF and warrants further investigation into its mechanism of action.
18066611 Statin treatment for rheumatoid arthritis: a promising novel indication. 2008 Mar The results of several cross-sectional trials suggest that patients with rheumatoid arthritis (RA) have increased vascular risk and cardiovascular mortality. It was demonstrated that inflammation plays a pivotal role in the pathogenesis of both RA and atherosclerosis. This association may explain the high incidence of cardiovascular disease in RA patients. A number of recent studies show that routine statin use in patients with RA offers considerable advantages. Statin treatment has been supported to exert a beneficial effect on disease activity, swollen joint count, endothelial dysfunction, and arterial stiffness in RA patients. These improvements are coupled with a mild to moderate improvement in plasma markers of inflammation, such as C-reactive protein and erythrocyte sedimentation rate. Statins have a satisfactory safety profile with relatively few adverse effects. In the absence of side effects and contraindications, it may be reasonable to consider statin use in selected cases, particularly in patients with a long history of active RA who are at increased cardiovascular risk.
17641894 The adaptation, reliability and validity testing of the Estonian version of the Health Ass 2007 Nov The aim of our study was the adaptation of the Health Assessment Questionnaire's Disability Index (HAQ-DI) for Estonia along with the assessment of its psychometric properties. The linguistic validation included phases of translation, back translation and testing on patients. Reliability and validity were tested on a sample of 50 rheumatoid arthritis patients by administering the HAQ-DI and the comparator instruments at two visits; disease activity and radiological stage were assessed. The participants were asked to comment on the questionnaires. The HAQ-DI was easily translatable into Estonian. It showed good test-retest reliability, internal consistency, and ability to discriminate between different levels of self-perceived severity. Comparison with the comparators and performed assessments demonstrated expected convergent and divergent validity. Still, the participants' comments revealed issues disregarded during the adaptation process. We recommend the Estonian HAQ-DI for rheumatoid arthritis clinical studies and trials; some aspects of the adaptation process are highlighted for further discussion.
17977487 Quality of life in patients with rheumatoid arthritis: does abatacept make a difference? 2007 Sep Rheumatoid arthritis (RA) is a chronic, progressive, autoimmune disease that, in addition to causing joint damage, is associated with pain, fatigue, disability and functional loss, which can substantially decrease a patient's quality of life (QoL). Along with improvements in signs and symptoms, QoL benefits have become increasingly important in optimizing treatment outcomes in RA. Measurements of QoL have previously been under-used in all areas of medicine and only recently have clinical trials included them as a measure of treatment effectiveness. The existence of a positive relationship between improvements in signs and symptoms and concomitant improvements in QoL provides additional evidence that QoL measures are useful benchmarks for evaluating the effectiveness of treatment for RA. Furthermore, since these outcome measures evaluate the real-life, patient-centered benefits of RA therapies, they are likely to become increasingly central to the assessment of disease impact in clinical trials and practice, and to both drug approval and reimbursement decisions. This article reviews the impact of abatacept, a selective co-stimulation modulator, on the QoL of patients with active RA across a number of pivotal clinical trials. Firstly, an overview of the key QoL measurements used in abatacept clinical trials is provided, including those such as the Short Form-36, Health Assessment Questionnaire and Visual Analog Scale for pain, sleep and fatigue. We then present QoL data obtained in a wide range of patients with RA, including those with an inadequate response to either methotrexate or anti-tumor necrosis factor therapy, who have been treated with abatacept. Analysis of these data demonstrates that abatacept therapy has the potential to improve QoL across a range of patients with RA.
19036231 Two-year follow-up in an early rheumatoid arthritis patient treated with etanercept: radio 2008 Oct This case report describes an excellent clinical and radiological response in an eRA patient treated with Etanercept; however, it indicates that joint damage may progress, despite a sustained clinical remission, after Etanercept suspension.
16984941 Risk and predictors of infection leading to hospitalisation in a large primary-care-derive 2007 Mar BACKGROUND: The increased mortality observed in patients with rheumatoid arthritis is partly due to an increased occurrence of serious infections. A retrospective study from the Mayo Clinic found that infection risk is increased in rheumatoid arthritis. In particular, serious infection was associated with severe disease and use of corticosteroids. Robust estimates are required from prospective studies of incident cases. OBJECTIVE: To examine the risk of infection leading to hospitalisation and potential factors associated with this risk in an unselected population of patients with inflammatory polyarthritis. DESIGN: A prospective cohort study comparing infection incidence in new-onset patients with inflammatory polyarthritis with local population experience. PATIENTS AND METHODS: 2108 patients with inflammatory polyarthritis from a community-based register were studied and followed up annually (median 9.2 years). The rate of hospitalisations for serious infection was compared with the rate of hospitalisations in the regional population. The contribution of potential predictors was assessed by undertaking a within-cohort analysis. RESULTS: Overall, the incidence of infection was more than two and a half times that of the general population (varying by site). History of smoking, corticosteroid use and rheumatoid factor were found to be significantly independent predictors of infection-related hospitalisation. Patients with inflammatory polyarthritis with all three factors were more than seven times as likely to be hospitalised compared with the rest of the cohort. DISCUSSION: These findings provide background data on the risk of infection associated with rheumatoid arthritis, and are of particular interest given the current awareness of the risk of infection associated with anti-tumour necrosis factoralpha treatments.
17922666 TNF antagonist safety in rheumatoid arthritis: updated evidence from observational registr 2007 Although the efficacy of tumor necrosis factor (TNF) antagonists for the treatment of rheumatoid arthritis (RA) has been established in randomized controlled trials (RCTs), safety concerns have emerged, particularly with regard to risk of infection, malignancy, and cardiovascular (CV) outcomes. Because of the shorter duration and limited number of patients enrolled in RCTs, evidence regarding the risk of rare adverse outcomes is frequently inconclusive. Longterm observational studies, as well as RCT meta-analyses, provide additional safety data. This review discusses the emerging evidence from observational registries on the risk of infection, malignancy, and CV outcomes associated with TNF antagonists.
18937634 Emerging therapeutics for rheumatoid arthritis. 2008 Therapeutics options for rheumatoid arthritis (RA) have increased tremendously in the past decade with the introduction of biological agents in 1999. Several different cellular and cytokine targets have been identified, with specific inhibitors now approved to treat RA, including the tumor necrosis factor (TNF) antagonists (adalimumab, etanercept, infliximab), an interleukin 1 (IL1) antagonist (anakinra), an inhibitor of T cell co-stimulation (abatacept), and a selective depleter of B cells (rituximab). As research has progressed, additional promising targets have been identified. Results from RA studies using several new agents have been reported in the last year. Some of these compounds are similar to agents already available, with additional TNF inhibitors (certolizumab pegol, golimumab) and agents targeting CD20 (ocrelizumab, ofatumumab, TRU-015) in development. Other agents are directed toward new cytokine targets, including IL-6 (tocilizumab), and lymphotoxin pathways (briobacept), as well as other B-cell targets, to include BLyS and APRIL (belimumab, atacicept). Additional small molecule therapies have been studied that are directed against intracellular kinases, including JAK-3 and Syk. This article provides a brief update of data from selected clinical trials in RA, highlighting efficacy, and mechanism-based safety concerns.
17714062 The use of TNF-alpha blocking agents in rheumatoid arthritis: an update. 2007 Sep TNF-alpha has been found to play a pivotal role in the pathogenic mechanisms of rheumatoid arthritis (RA). Drugs targeting TNF-alpha have been developed to neutralise the deleterious effects of this inflammatory cytokine. There are, at present, three drugs available for the treatment of RA patients with active disease who are refractory to conventional treatments including methotrexate: 2 monoclonal antibodies, infliximab and adalimumab, and a fusion protein with p75 receptors, etanercept. These three agents have proved to be effective and safe in large placebo-controlled trials enrolling patients with established or early disease and showed effectiveness in controlling signs and symptoms of the disease, improving quality of life and in slowing and even arresting the progression of radiographic damage. With the long-term surveillance of these drugs were described serious adverse events, particularly infections such as tuberculosis, especially with infliximab. The risk for malignancies under TNF-alpha antagonists, especially lymphoma, remains controversial. Specific recommendations are given by international experts for selecting and monitoring RA patients with TNF-alpha antagonists. Other drugs targeting TNF-alpha such as PEGylated molecules (CDP870 or certolizumab) are in development. These new biological therapies blocking TNF-alpha undoubtedly constitute a considerable advancement in the management of RA, but careful evaluation at the initiation of the treatment and long-term surveillance of the patients receiving such drugs remains necessary.
16719936 Aspects of early arthritis. Traditional DMARD therapy: is it sufficient? 2006 There is increasing evidence for beneficial effects of early DMARD (disease-modifying antirheumatic drug) therapy over delayed treatment in patients who present with arthritis of recent onset. However, no universal consensus exists concerning the choice of initial drug or whether single drugs or combinations should be given as initial treatments. Recent studies have focused on the benefits of various strategies in which treatments were tailored to achieve low levels of disease activity, as assessed using validated response criteria. These studies demonstrated superiority of 'aggressive' over 'conventional' approaches. Whether the inclusion of tumour necrosis factor antagonists or other biologic targeted therapies in such strategies confers additional benefits in terms of improved long-term outcomes must be clarified by further studies. Assessment of risks in the individual patient, allowing individual 'tailoring' of the initial treatment, would be desirable.
17334829 Item response theory methods can improve the measurement of physical function by combining 2007 May OBJECTIVE: To compare the measurement properties of the Modified Health Assessment Questionnaire [MHAQ], the SF-36((R)) Health Survey 10 item Physical Functioning scale [PF10], and scores from an item response theory (IRT) based scale combining the two measures. STUDY DESIGN: Rheumatoid arthritis (RA) patients (n = 339) enrolled in a multi-center, randomized, double-blind, placebo-controlled trial completed the MHAQ and the SF-36 pre- and post-treatment. Psychometric analyses used confirmatory factor analysis and IRT models. Analyses of variance were used to assess sensitivity to changes in disease severity (defined by the American College of Rheumatism (ACR)) using change scores in MHAQ, PF10, and IRT scales. Analyses of covariance were used to assess treatment responsiveness. RESULTS: For the entire score range, the 95% confidence interval around individual patient scores was smaller for the combined (total) IRT based scale than for other measures. The MHAQ and PF10 were about 70% and 50% as efficient as the total IRT score of physical functioning in discriminating among ACR groups, respectively. The MHAQ and PF10 were also less efficient than the total IRT score in discriminating among treatment groups. CONCLUSIONS: Combining scales from the two short forms yields a more powerful tool with greater sensitivity to treatment response.
18958746 Stem cell transplantation in rheumatoid arthritis. 2008 Dec The therapeutic potential of high dose cytotoxic therapy and stem cell transplantation (SCT) in severe rheumatoid arthritis (RA) was originally supported by animal studies and serendipitous clinical cases where allogeneic and autologous procedures were shown to ameliorate and potentially cure the disease. Phase I and Phase II clinical studies established the feasibility, safety and efficacy of autologous stem cell mobilisation and transplantation. Although it was clear that the effects of high dose chemotherapy and autologous SCT could safely achieve profound responses, sustained control of disease usually required the reintroduction of disease modifying agents. Responses were improved with dose escalation of the conditioning regimen, and also with post-SCT therapy, such as rituximab, but were not observed with graft manipulation. Phase III studies were attempted, but recruitment was compromised by the increasingly widespread use of biological anti-rheumatic agents. Autologous SCT is now only reasonably considered in relatively rare patients whose disease has resisted conventional and biological treatments, and small numbers of cases continue to be registered with the EBMT. Occasional patients treated with allogeneic and syngeneic SCT continue to stimulate academic interest, particularly as some appear to be cured, but significant logistical and toxicity issues mean that routine and widespread application is unrealistic. In summary, SCT continues to have a limited therapeutic potential in rare patients with RA refractory to modern therapy and sufficient fitness for the procedure. From a scientific perspective, ablation of the dysfunctional rheumatoid immune system and its reconstruction with SCT has provided useful insights into the pathophysiology of RA.
16463231 [Diagnostic and prognostic significance of antibodies against citrullinated peptides]. 2006 Feb 10 Antibodies against citrullinated peptides are highly specific for rheumatoid arthritis. With second generation ELISA-kits, CCP-antibodies have a specificity of > 96 % and a sensitivity of 68 %. CCP-antibodies can be detected several years before the onset of clinical symptoms. They are, thus, ideally suited for the differential diagnosis between early forms of rheumatoid arthritis and other inflammatory arthritides. As CCP-antibodies are associated with aggressive and treatment resistant courses of rheumatoid arthritis, their high predictive value can be useful in therapeutic strategy decisions in order to verify early treatment with disease modifying drugs or biologicals in line with modern treatment approaches to start aggressive therapy early to prevent bone erosions. In contrast to their role in differential diagnosis and prediction of aggressive disease, however, CCP-antibodies are of no value in monitoring treatment as they do not change essentially over prolonged periods of time.