Active clinical trials for "Arthritis"

Rheumatoid arthritis is a chronic inflammatory systemic disease. It has a worldwide distribution and can affect all age group. The peak incidence is between fourth and sixth decade. It is more prevalent in women, and it's prevalence in the general population in North America is between 0.2-1.5%. The etiology of RA is unknown, although clusters of the disease in families and high concordance in mono-zydotic twins support genetic predisposition. The prevalence of fatty liver disease in patients with rheumatoid arthritis is currently unknown. We wish to study the link between the two conditions by performing a son graphic imaging of the liver in a cohort of RA patients. If indeed a high prevalence of NAFLD will be found in the RA patients, further support will be landed for the link between inflammation and fatty liver disease. These findings may also have implications regarding the management and follow up of RA patients. The validity of sonographic imaging for detection of fatty liver diseases is currently accepted: On ultrasonographic, fatty infiltration of the liver produces a diffuse increase in echogenicity as compared with that of the kidneys. Ultrasonography has a sensitivity of 89% and a specificity of 93% in detecting steatosis and sensitivity and specificity of 77% and 89% respectively in detecting increase fibrosis. In view of all the above data, we expected to find higher prevalence of fatty liver in the patients with higher inflammation markers compare with patients with lower markers.

Hip implants come in different sizes. Currently, surgeons predict the implant size that will be needed using an analogue method whereby photos of the implant sizes are overlaid on the x-rays. In this study, we propose to use a digital, computerized method of templating which we expect will be more accurate than the overlay method.

Observational and prospective study of the ultrasound response to methotrexate in rheumatoid arthritis patients who started methotrexate

The purpose of this study is to determine the impact that treatment with a cellular concentrate derived from an individual's own fat, known as the stromal vascular fraction (SVF), has on pain and functionality in people with rheumatoid arthritis (RA). SVF contains multiple cellular components, including stem cells, with both regenerative and anti-inflammatory properties. This therapy has shown promise for ameliorating the symptoms of RA. This study is designed to evaluate changes in pain and functionality in individuals with RA for up to 12 months following SVF treatment.

TO TRANSALETE AND VALIDATE DE TORONTO PSORIATIC ARTHRITIS SECREENING QUESTIONAIRE INTO SPANISH

Introduction Rheumatoid arthritis (RA), a chronic autoimmune disease of unknown etiology, .If not managed early , RA can result in irreversible, painful, and disabling joint damage. RA is often diagnosed using predefined criteria that necessitate clinical, laboratory, and radiologic examinations. The prevalence of RA among adults is approximately 1-2% affecting women two to four times more often than men.Although RA risk increases with age, it can manifest at any stage of life, including childhood, adolescence, and adulthood.(1-4)( Karlson EW, Mandl LA, Hankinson SE, Grodstein F, Karlson EW, Mandl LA, Hankinson SE, Grodstein F., Karlson EW, Mandl LA, Hankinson SE, Grodstein F, Karlson EW, Mandl LA, Hankinson SE, Grodstein F) To date, a limited number of RA risk or protective factors have been identified, with genetic predisposition to autoimmune response (eg, HLA-DR4 gene) and repeated environmental exposures (eg, tobacco smoke) playing a major role.(3)(Karlson EW, Mandl LA, Hankinson SE, Grodstein F) Heritability of RA is well-established because the lifetime risk of RA and related autoimmune diseases (namely, systemic lupus erythematosus, ankylosing spondylitis, scleroderma, Sjo¨gren's syndrome, and hypothyroidism) increases 1.5 to 3 times in children of women diagnosed with RA.

Nearly 30% of patients with cutaneous psoriasis (PsO) developed psoriatic arthritis (PsA). Among these patients 20 % will have severe destructive arthritis. The risk of developing PsA is significantly higher in patients with nail involvement (OR = 2.24; 95% CI [1.26-3.98]). The risk is particularly high for the peripheral form of PsA and onycholysis (OR=2.80; 95% CI [1.34-5.85]). Thus the investigators wanted to test the hypothesis that onycholysis, in patients without PsA, is a potential clinical marker of subclinical distal enthesopathy and, by extension, of bone micro-structural alterations. Patients and Methods The investigators will recruit 4 groups of subjects: Patients with peripheral PsA, Patients with psoriatic nail onycholysis, Patients with PsO only Healthy match control subjects. The investigators will assess the presence of enthesopathy by ultrasonography and bone structural damages (by HR-pQCT) in all subjects at baseline and 4 years.

While methotrexate (MTX) remains a treatment of choice for patients with rheumatoid arthritis (RA), psoriasis (PsO) and psoriatic arthritis (PsA), long-term MTX use has been shown to be associated with liver fibrosis and cirrhosis in these patients. In addition, gut dysbiosis has been found to be associated with liver fibrosis and cirrhosis via the gut-liver axis, underscoring the potential role of gut microbiota and bacterial translocation in the pathogenesis of chronic liver diseases in these patients. In this study, we aim to assess the prevalence of advanced liver fibrosis or cirrhosis among these patients on MTX treatment compared to those without, using transient elastography. We also aim to identify the possible risk factor(s) for advanced liver fibrosis or cirrhosis among them. Further, we aim to characterize the difference in fecal microbiota patterns among these three groups of patients. Using a cross-sectional, prospective cohort design, this study will enroll approximately 600 eligible patients, including 300 patients with PsO/PsA and 300 patients with RA, to examine the following hypotheses: Patients on higher cumulative dose of MTX will have higher prevalence of advanced liver fibrosis or cirrhosis compared to those on lower cumulative dose of MTX; Patients with MTX use will have higher prevalence of advanced liver fibrosis or cirrhosis compared to those without MTX use; The fecal microbiota composition will be different between patients with and without MTX treatment; and The fecal microbiota composition will be different between patients with and without advanced fibrosis/cirrhosis while on MTX treatment.

The current situation of Sars-Cov-2 pandemic generates fears in the general population. Among patients receiving long-term immunomodulatory drugs, especially in the context of auto-immune diseases, there may be legitimates interrogations about the appropriateness of continuing treatment, without modification, in the current context. Most patients with Juvenile Rheumatoid Arthritis benefit from long-term immunmodulatory therapy (DMARD - disease modifying anti-rheumatic drug), more or less combined with regular use of non-steroidal anti-inflammatory drugs (NSAIDs) or corticosteroids.The present study will characterize this issue by defining the proportion of patients whose usual treatment of Rheumatoid Arthritis has been modified in relation to the actual sanitary crisis.

Aims of the study: Measurement of serum level of Mac 2 binding protein among patients with psoriasis, psoriatic arthritis and subclinical psoriatic arthritis compared with healthy individuals. Evaluation of MSUS findings in patients with PsA and subclinical psoriatic arthritis Evaluation of the role of serum level of Mac 2 binding protein and MSUS in predicting arthritis among psoriatic patients.