View clinical trials related to Rheumatoid Arthritis.
Filter by:Rheumatoid arthritis (RA) is a systemic autoimmune inflammatory disorder that can cause substantial pain and joint tenderness, significant joint damage, and serious disability. The treatment goals are minimization of the signs and symptoms of the disease, and the reduction of irreversible joint damage. As the understanding of the pathophysiological mechanisms underlying RA is elucidated, the opportunity to target specific inflammatory processes with new therapies has improved. Rheumatoid arthritis is a T cell-mediated autoimmune disease and there are various therapies, including newer experimental therapies, which target either the activation of T cells or the neutralization of their effector mechanisms. These newer therapies have shown benefit in human and animal models of RA. Extracorporeal photoimmune therapy (ECP) has been shown to be safe and effective in the palliative treatment of the skin manifestations of cutaneous T cell lymphoma. Experimental studies have also demonstrated activity of ECP treatment in several T cell mediated diseases including graft versus-host disease, rejection after organ transplantation, and selected autoimmune diseases. This study will evaluate a cell-based therapy (ECP) in patients who have an inadequate response to disease-modifying antirheumatic drugs (DMARDs) and biological agents to determine if ECP treatment can reduce the signs and symptoms of RA in this refractory patient population.
The purpose of this study is to establish whether RA patients with moderate to severe disease activity with unsustainable response to infliximab 3 mg/kg every 8 weeks have better efficacy with adalimumab 40 mg s.c. eow compared to infliximab 3 mg/kg i.v. every 6 weeks.
The objective of the study is to identify and validate predictive markers of infliximab responsiveness in RA patients by 2 approaches: i) measuring biochemical, immunological and bone markers in sera because of their involvement in pathogenic mechanisms; ii) identifying gene-expression signatures in PBMCs by the transcriptomic analysis. Patients with active RA (ACR criteria) were given i.v. 3 mg/kg infliximab associated with metotrexate at weeks 0, 2, 6, and every 8th week. Infliximab efficacy was evaluated at week 14, using the EULAR response criteria. 1. Just before the starting of infliximab treatment, the following parameters were measured in the sera: i) immunological tests: rheumatoid factor (IgA, IgG, IgM), anti-CCP, autoAb recognizing the 27 C-terminal fragment (ACAST-C27) and domain I (ACAST-DI) of calpastatin, anti-G6PI, anti a-enolase, anti-keratin and anti-perinuclear factor; ii) biochemical markers: CRP, MMP-1, MMP-3, TIMP-1, TIMP-2; markers of bone resorption: pyridinolin, deoxypyridinolin, osteoprotegerin, sRANKL, COMP. The predictive value of each parameter for a response/non-response to infliximab was analysed using Fischer's exact, Mann-Whitney and Chi2 tests. 2. A blood sample was collected just before the onset of infliximab treatment and total RNAs were extracted from the peripheral blood mononuclear cells. The [33P] radiolabeled mRNAs were hybridized (duplicate or triplicate) over a set of 10.000 human cDNA probes spotted at a high density on nylon membranes. Data were normalized and filtered to allow the comparison between RNA samples. Statistical analyses were performed with the R software and hierarchical clustering was performed with the Cluster and Tree View softwares.
The objective of the study is to identify and validate predictive markers of anakinra responsiveness in RA patients by a transcriptomic approach. Patients with active RA (ACR criteria) were given subcutaneous anakinra (100mg/d) 3 associated with metotrexate. Anakinra efficacy was evaluated at week 12, using the EULAR response criteria. A blood sample was collected just before the onset of anakinra treatment and total RNAs were extracted from the peripheral blood mononuclear cells. The [33P] radiolabeled mRNAs were hybridized (duplicate or triplicate) over a set of 10.000 human cDNA probes spotted at a high density on nylon membranes. Data were normalized and filtered to allow the comparison between RNA samples. Statistical analyses were performed with the R software and hierarchical clustering was performed with the Cluster and Tree View softwares.
To investigate whether cyclosporine, added to methotrexate and steroid, increases the possibility of inflammatory management early in the disease; furthermore to investigate the possible steroid-sparing effect of cyclosporine in patients with recently diagnosed rheumatoid arthritis.
The purpose of this study is to monitor the performance of the DePuy PROXIMA™ hip in the treatment of patients with hip joint disease requiring a total hip replacement. Patients who enter the study will be evaluated at regular intervals following hip surgery using patient, clinical and x-ray assessments. A subset of patients will undergo scans to allow the bone mineral density of the bone surrounding the implant to be monitored
The purpose of this study is to monitor the performance of the Pinnacle™ Cup with a polyethylene-on-metal bearing combination in the treatment of patients with hip joint disease requiring a total hip replacement. Patients who enter the study will be evaluated at regular intervals following hip surgery using patient, clinical and x-ray assessments.
The purpose of this study is to monitor the performance of the Summit™ hip in the treatment of patients with hip joint disease requiring a total hip replacement. Patients who enter the study will be evaluated at regular intervals following hip surgery using patient, clinical and x-ray assessments.
The purpose of this study is to monitor the performance and determine the metal ion release of the DePuy ASR™ System in the treatment of patients with hip joint disease requiring hip resurfacing surgery. Patients who enter the study will be evaluated at regular intervals following hip surgery using patient, clinical and x-ray assessments. A subset of patients will also have blood samples taken at regular intervals to allow the metal ion levels to be determined and undergo scans to allow the bone mineral density of the bone surrounding the implant to be monitored. DePuy decided to close this Study in 4Q 2009. The Study was terminated with effect from December 2010 to allow for the completion of the 5 year follow up assessments. Please note that subsequent to this decision DePuy voluntarily recalled the ASR products on 24 August 2010. Additional information regarding this voluntary recall and the follow-up of patients affected by the recall can be found at the following links http://www.mhra.gov.uk/Publications/Safetywarnings/MedicalDeviceAlerts/CON079157 and http://www.depuy.com/countries_list.
The purpose of this study is to monitor the performance and determine the metal ion release of the Pinnacle™ Cup with a metal-on-metal bearing combination in the treatment of patients with hip joint disease requiring a total hip replacement. Patients who enter the study will be evaluated at regular intervals following hip surgery using patient, clinical and x-ray assessments. A subset of patients will also have blood samples taken at regular intervals to allow the metal ion levels to be determined.