View clinical trials related to Rheumatoid Arthritis.
Filter by:This study aims to evaluate the effects of abatacept, a CTLA4-Ig fusion protein that binds cluster of differentiation antigen 80 (CD80)/86 (B7-1/B7-2), on subclinical myocarditis in rheumatoid arthritis (RA) through its effect on T cell subpopulations. RA patients without clinical CVD, biologic naïve, and with inadequate response to methotrexate (MTX), will undergo cardiac fluorodeoxyglucose (FDG) positron emission tomography (PET)/computerized tomography (CT) imaging to assess myocardial inflammation. Studies that investigate the impact of treatment on subclinical myocarditis in RA, a possible contributor to heart failure, while exploring potential underlying mechanisms (i.e., different T cell subpopulations), are needed for a better understanding of their relevance in the pathogenesis of heart failure in RA and survival improvement in these patients with excess risk for cardiovascular death. If the investigator hypothesis is confirmed and treatment with abatacept decreases and/or suppresses or prevents myocardial inflammation in RA, this will have multidisciplinary implications that could lead to changes in the current management of RA patients at high risk for cardiovascular events. Similarly, identification of T cell subpopulations in RA patients with myocardial FDG uptake will shed light into the underlying cellular mechanisms of myocardial injury and serve to guide the use of therapies that prevent their pathogenicity. The objectives of this study are to compare the change in myocardial FDG uptake in RA patients treated with abatacept vs adalimumab, and identify T cell subpopulations associated with myocardial FDG uptake in each treatment arm. RA patients will be randomized in an unblinded, 1:1 ratio to treatment with abatacept vs adalimumab. A cardiac FDG PET/CT will be performed at baseline and 16 weeks post-biologic treatment. T cell subpopulations associated with myocardial FDG uptake will be evaluated at both points in time with their transcriptional phenotype outlined by RNA sequencing.
Rheumatic diseases regroup a variety of disorders affecting the locomotor system including joints, muscles, connective tissues and soft tissues around the joints and bones. Inflammation and/or autoimmune reactions contribute to the aetiology of many rheumatic diseases. Such autoimmune conditions, commonly referred to as inflammatory rheumatic diseases (IRD), include arthritis of various origins such as rheumatoid arthritis (RA), psoriatic arthritis (PsA) or spondylarthritis (SpA). Patients with autoimmune diseases such as RA or SpA are in higher risk of fractures compared to the general population. Initial pharmacotherapies for IRD remain NSAID treatment for pain relief, and anti-resorptive agents (e.g., TNF-alpha blockers) which aim at reducing bone loss and preventing occurrence of new bone erosions. Yet current treatments may have strong side effects and are not always effective (e.g., 35-40% of the patients treated with TNF-alpha inhibitors will initially or progressively loose response). Therefore there is a need for further treatment modalities in IRD, which would focus on both suppressing inflammation and treating bone disorders. Current research studies indicate that Bone Therapeutics' allogeneic osteoblastic cells exhibit in vitro potent immunosuppressive and anti-inflammatory properties (in addition to osteo-regenerative and immune-privileged properties). The present research study aims at investigating in vitro the properties of these osteoblastic cells in the context of inflammatory rheumatic diseases. In this purpose, in vitro assays will be used to test these immunosuppressive effects on peripheral blood mononuclear cells (PBMCs) of subjects diagnosed with RA, PsA and SpA.
This study will assess the mental health and clinical benefits of Mindfulness Based Stress Reduction (MBSR) in patients with rheumatic disease who have anxiety or depression. MBSR, an interactive form of meditation that includes gentle yoga, will be taught by a certified instructor over an eight-week period. Mental health surveys will be conducted within one month of the study start and end as well as mid-course. Clinical assessments will be conducted within one-month of the study start and end.
This study is a multi-center, prospective, non-controlled post-market surveillance study. The primary objective of this study is to confirm the safety and performance of the CLS Brevius stem with Kinectiv technology by obtaining implant survivorship and clinical outcomes data for the commercially available stem.
The study is a multi-center, prospective, non-controlled, consecutive cohort post market surveillance study. The objective of this study is to obtain survival and clinical outcome data on the Hyperion® system in primary and revision total hip arthroplasty.
The purpose of this study is to investigate experimental medication BMS-986251 taken by mouth in healthy patients and patients with average to very serious Psoriasis (a condition characterized by itchy, dry skin with a scaly rash).
In rheumatoid arthritis (RA) the clinical response to anti-TNFα is related to an increase in the number or in the function of Treg lymphocytes in the peripheral blood of patients. This observation suggests the central role of Tregs in homeostasis of the immune response during RA. In the literature the Tregs frequency and phenotype in the peripheral blood are well documented, however the analyses done on the Tregs in inflamed environment are still fragmentary or disparate. In this project Tregs phenotype as well as expression of several transcripts will be analysed in order to better characterize the Treg cell subsets within the synovial fluid. Moreover, the local inflammatory cytokines (TNF, IL-6 and IL-1) may affect both the phenotype and the suppressive function of these Tregs and a comparison between peripheral and tissue Tregs will allow us to better understand the cause of functional loss. Outcomes: Primary outcome: Identification and characterization of the Tregs subpopulation present in the synovial fluid for RA patients suffering an episode of acute arthritis. Secondary outcomes: compare the phenotypic and expression profile of the Tregs present in the synovial fluid with the Tregs present in the peripheral blood of RA patients suffering from an episode of acute arthritis.
A post market, prospective, non-randomized, multi-center, open-label, clinical study using survivorship as the reference performance goal to study the safety and efficacy of the Titan Modular Shoulder System 2.5 when used for primary shoulder arthroplasty.
This study will evaluate the long term performance and safety data for the Cadence™ Total Ankle System (CTAS) when used for primary arthroplasty in patients with primary arthritis (e.g. degenerative disease), secondary arthritis (e.g. post-traumatic, avascular necrosis, if minimally 2/3 of the talus is preserved), and systemic arthritis of the ankle (e.g. rheumatoid arthritis, hemochromatosis)
A post market, non-randomized, multi-center, open-label,clinical study using survivorship to study the safety and efficacy of the Integra® TITAN™ Total Shoulder System 1.0 (TAS) when used for total shoulder arthroplasty.