View clinical trials related to SLE.
Filter by:The purpose of this study is to assess the clinical efficacy, safety, PK, and PD of multiple dose levels of ESK-001 compared with placebo in adult patients with SLE.
Serological positivity for anti Ro-SSA antibodies is frequently found in pathologies such as Sjogren's Syndrome and SLE. Worldwide, approximately 0.5-1% of women of reproductive age are positive for Ro-SSA antibodies, and in 1-2% of these women, pregnancy will be complicated by cardiac abnormalities of the fetus, particularly varying degrees of atrioventricular block. It is essential to promptly identify patients with fetal heart rhythm abnormalities to prevent both intrauterine deaths and the birth of newborns with third-degree atrioventricular block, requiring lifelong cardiac pacing. At the moment, the only means to identify these alterations is represented by fetal cardiac ultrasound. Fetal atrioventricular block can develop within a few hours in these patients and fetal ultrasound, normally performed no more frequently than once every two weeks, does not allow for the timely identification of these conditions and therefore for pharmacological intervention. Using home fetal heart rate monitoring, carried out directly by patients three times a day with the aid of a special device that allows easy identification of the fetal heart rhythm, would allow rapid recognition of rhythm alterations and early access to confirmation tests and possible therapies. Fetal heart rhythm surveillance could detect a medically reversible disease that, if untreated, would progress to lifelong cardiac pacing, with its many associated comorbidities. Applying such protocol in pregnant women anti-Ro/SSA positive could become standard practice. The main objectives of this study are: - Estimation of the incidence of the development of fetal AV conduction abnormalities in patients with positivity for Ro/SSA autoantibodies; - Estimation of the reliability of home monitoring of fetal heart rate with fetal Doppler device in detecting fetal atrioventricular conduction disturbances; - Evaluation of the results of the therapy administered early, immediately after the diagnosis of fetal atrioventricular conduction disorders.
To establish the efficacy of a community-based POL (Popular Opinion Leader) intervention with two different trainings designed to increase COVID-19 vaccine and booster uptake and reduce hesitancy among social networks of Black individuals with rheumatic conditions. The investigators will also determine the structure and composition of the personal and outreach social networks of POLs.
In Latin America, information about patients with systemic lupus erythematosus (SLE) is limited. Multicenter studies are needed to obtain "real world data '' and to carry out longer follow-ups. The purpose of this project is to design a cohort of Argentinian patients with SLE to describe "our real setting" and to identify possible limitations in access to specialized consultations and treatments.
Assess cardiovascular affection and subclinical atherosclerosis in patients with systemic lupus using the non invasive flow mediated dilation. evaluate the role of uric acid as independent marker of cardiovascular risk in systemic lupus patient
Over the past few years, growing evidences revealed that clearance of apoptotic cells by phagocytosis can result in powerful anti-inflammatory and immunosuppressive effects. In vivo, apoptotic cells are cleared rapidly by neighboring cells, macrophages and related scavengers. Defective clearance of apoptotic cells has been linked closely to autoimmunity and persistent inflammatory disease. Several phagocytic receptors, bridging molecules produced by phagocytes and 'eat-me' signals on apoptotic cells are coordinately involved in mediating clearance of apoptotic cells. Complement receptors (CR3, CR4), collection, CD14, CD36 (Class B scavenger receptor), class A scavenger receptor, asialoprotein receptor, Mer receptor kinase were reported to recognize apoptotic cells. The best characterized system for clearance of apoptotic cells is the recognition of phosphatidylserine (PS) on apoptotic cells by phosphatidylserine receptor (PSR). Milk fat globule- epidermal growth factor 8 (MFG-E8) is an opsonin that bridges phagocytes (by interacting with α vβ3, αvβ5 integrins via RGD motif) and apoptotic cells (by binding PS through Factor V/VIII-C domain). Activated macrophages produce and secret MFG-E8. MFG-E8 is a critical component in PSR-mediated phagocytosis of apoptotic cells. The dominant negative mutant MFG-E8, D89E, that carried a mutated RGD motif inhibited phagocytosis of apoptotic cells in vitro. Injection of D89E into wild type mice induced autoantibodies and IgG deposition on glomeruli. Macrophages from MFG-E8 deficiency (MFG-E8-/-) mice were impaired in engulfment of apoptotic cells, which can be restored by adding recombinant MFG-E8. The female MFG-E8-/- mice spontaneously produced high titer of autoantibodies and developed lupus-like glomerulonephritis at the age of week 40. Defective clearance of apoptotic cells is closely related to development of autoimmunity. In the past 4 years, a growing number of molecules were recognized as receptors for the PS exposed on the apoptotic cells. These molecules were capable of mediating phagocytic clearance, rendering anti-inflammatory cytokines in the phagocytes, and modulating T cell responses. The specific aim of this proposal is to study genetic polymorphism in MFG-E8, PSR and other factors implicated in phagocytic clearance of apoptotic cells among Taiwanese. By comparing the polymorphism between patients with autoimmune disease (SLE or RA) and healthy control subjects, we will investigate if genetic variations among individuals of genes encoding proteins involved in clearance of apoptotic cells contribute to the pathogenesis of systemic autoimmune diseases SLE and RA.
Decoy receptor 3 (DcR3), a new member of tumor necrosis factor receptor (TNFR) superfamily, is a decoy receptor for FasL and could inhibit FasL-induced apoptosis, has recently been shown to induce costimulation of T cells. Systemic lupus erythematosus (SLE) is an autoimmune disease with pathogenic autoantibodies and immune complexes results from abnormal immune responses including T and B lymphocyte hyperactivity, and formation of pathogenic subsets of autoantibodies. Rhematoid arthritis (RA) is a multi-systemic autoimmune disease characterized by persistent inflammatory synovitis. Activated T lymphocytes infiltration to synovium is strongly correlated with the symptoms. DcR3 mRNA is expressed in peripheral-blood T cells and is up-regulated after antigenic stimulation. The DcR3 gene has been demonstrated to be overexpressed in patients with sclerosis or SLE; however, role of DcR3 in SLE and RA as well as the effects of DcR3 on T cell immune response is still not clear. This study is to investigate role of DcR3-induced T cell activation in SLE and RA. The genetic polymorphisms of DcR3 in association with SLE and RA will be studied to elucidate the genetic factors associated with development of SLE and RA. For further explore the possible molecular mechanisms of elevated DcR3 in association with SLE, we attempt to study whether DcR3 could induce T cell activation via costimualtion and/or inhibit the activation induced cell death (AICD) of activated T cells in SLE and RA. This study will provide a new direction of therapy in reverse T cell hyper-reactivity in SLE and RA.