View clinical trials related to Antiphospholipid Syndrome.
Filter by:Rivaroxaban versus warfarin for stroke patients with antiphospholipid syndrome, with or without SLE (RISAPS): a randomised, controlled, open-label, phase IIb, non-inferiority proof of principle trial. 40 patients will be randomised with a ratio of 1:1 to receive either: - Rivaroxaban 15mg twice daily orally for 24 months or - Warfarin (standard of care in the RISAPS trial) to maintain a target INR of 3.5 (range 3.0-4.0) for 24 months. The primary outcome of the trial is the rate of change in brain white matter hyperintensity (WMH) volume between baseline and 24 months follow up, assessed on brain magnetic resonance imaging (MRI), a surrogate marker of ischaemic damage.
Comparison of capillary whole blood INR determined by LumiraDx Instrument to venous plasma INR determined by laboratory reference method (IL ACL ELITE PRO) for method comparison and assessment of accuracy and bias by regression analysis and other analytical methods.
The investigators hypothesize that the white matter of patients with obstetric antiphospholipid syndrome deteriorates over time
Antiphospholipid syndrome (APS) combines thrombotic (venous and/or arterial) and/or obstetrical manifestations, along with biological anomalies related to the presence of antiphospholipid antibodies. Despite actual treatment recommended by international guidelines, the relapse rate in APS is high and survival is 65% at 15 years. Hydroxychloroquine has demonstrated its efficacy and benefits in the treatment of Systemic Lupus Erythematosus, but there is no current consensus concerning the efficacy of this treatment in the secondary prevention of thrombotic events in primary APS, even though several in vitro experimental and animal model data, along with several clinical studies have suggested a beneficial effect of this drug in this indication. Considering the prevalence of primary APS in the general population and of the number of clinical events observed in patients with primary APS and receiving conventional treatment with vitamin K anticoagulants (VKA), the consortium expects a minimum clinically relevant difference of 70%. Considering a prevalence of thrombotic events for the entire studied primary APS population of 10% at 2 years, the consortium expects a 70% decrease in thrombotic events under Hydroxychloroquine treatment administered in addition to VKA treatment in primary APS, i.e. a 3% prevalence in the Hydroxychloroquine group at 2 years. The consortium proposes a drug trial, phase III, national multicentric, comparative, randomized, superiority, double-blind, controlled with 2 compared groups (Hydroxychloroquine versus placebo) study. The enrolment period will be 24 months. The main aim of this trial is to comparatively assess at 24 months the number of new thrombotic events (venous and arterial) in primary antiphospholipid syndrome in patients treated with VKA plus Hydroxychloroquine versus VKA plus placebo, in a multicentre, prospective randomized, double-blind, versus placebo study.
Antiphospholipid antibodies are autoantibodies directed against phospholipidâbinding proteins. Among these groups of antibodies, lupus anticoagulant (LA) and anticardiolipin antibodies (aCL)
Antiphospholipid antibody syndrome (APS) is an autoimmune disease characterized by systemic thrombosis and bad obstetric history. APS secondary to another medical disorder is the most common. Visual and ocular changes e.g. vaso-occlusive disease of retinal and choroidal vessels are found in patients with secondary APS. Patients with primary APS have also been reported to have ocular changes e.g. retinal vascular occlusion The aim of our study to detect prevalence of ocular changes in women diagnosed with primary APS and correlation of these changes with adverse obstetric outcome. If a correlation is present, ocular findings in women with APS could be used in the future as a predictor for poor obstetric outcome.
Fabry disease, an X-linked disorder of glycosphingolipids that is caused by mutations of the GLA gene that codes for α-galactosidase A, leads to dysfunction of many cell types and includes a systemic vasculopathy. As a result, patients have a markedly increased risk of developing ischemic stroke, small-fiber peripheral neuropathy, cardiac dysfunction and chronic kidney disease. Because this disease is a rare disease most of the time it is misdiagnosed, so in this study we will check out the Prevalence of lysosomal hydrolase alpha-glagtosidase deficiency ( Fabry disease) in patients with Antiphospholipid Syndrome.
Introduction AntiPhospholipid antibody Syndrome (APS) is an acquired autoimmune disorder defined by the presence of persistent thrombosis or obstetric manifestations together with the presence of persistent antiphospholipid antibodies (aPL). Patients are young and at high risk of recurrence. The current challenge is the identification of patients at high risk of organ damage that directly impact morbidity and mortality. Small vessels thrombosis can be asymptomatic but detectable by MRI. Apart from APS, it was shown that the detection of asymptomatic ischemic events identify patients at risk for symptomatic ischemic events. Demonstrating this in patients with APS would prevent thrombotic complications. The investigators' hypothesis is that a significant proportion of patients with APS would have asymptomatic organ involvement. Objectives The primary objective is to determine the frequency of asymptomatic target organ (s) (heart, brain, kidney) in APS patients. Secondary objectives are (i) to determine the frequency of each type of MRI abnormality, (ii) to identify the factors associated with asymptomatic target organ lesion, (iii) to describe the parameters of echocardiography associated with cerebral and cardiac MRI, and (iv) to assess the feasibility of a one-time cardiovascular and brain MRI. Methods and analysis This is a prospective interventional, cross-sectional, non-randomized, monocentric clinical study. The investigators expect to include 50 consecutive patients with APS followed in the department of Vascular Medicine at Nancy University Hospital. Within 15 days post-inclusion, a one-time cardiac and cerebral MRI will be performed. For each patient, the number of target organs involvements will be calculated and the frequencies will be compared by Fisher or chi-2 tests.
detection of anti-ds DNA in patients with rheumatic diseases by two methodes : immunofluorescence & ELISA
This treatment trial evaluates the addition of an anti-tumor necrosis factor-alpha drug, certolizumab, to usual treatment (a heparin agent and low-dose aspirin) in pregnant women with antiphospholipid syndrome (APS) and repeatedly positive tests for lupus anticoagulant (LAC) to determine if this regimen will improve pregnancy outcomes. All enrolled patients will receive certolizumab, and pregnancy outcomes will be compared to those of women with APS and repeatedly positive tests for LAC enrolled in a previous study by the investigators.