View clinical trials related to Systemic Vasculitis.
Filter by:The purpose of this study is to determine whether plasma exchange as well as immunosuppressive therapy are effective in reducing death and end-stage renal disease (ESRD). The trial will also study whether a reduced cumulative dosing regimen of glucocorticoids is as effective as a standard disease regimen. The FDA-OOPD is one of the funding sources for this study.
Granulomatosis with polyangiitis (GPA; Wegener's) is a multi-organ autoimmune disease characterized by necrotizing granulomatous inflammation and vasculitis. Upper respiratory involvement occurs in up to 90% of patients with GPA and is often the first manifestation of the disease. Patients with upper respiratory tract disease are more at risk of local and systemic relapse. Microbial organisms may be involved in inducing disease activity in GPA. Previous culture-dependent studies found that patients with GPA were more likely to be chronic nasal carriers of Staphylococcus aureus compared to non-GPA chronic rhinosinusitis and healthy controls; additionally, GPA patients with S. aureus colonization are more likely to experience a future relapse. This led to a randomized placebo-controlled trial of trimethoprim-sulfamethoxazole (TMP-SMX) which showed this antibiotic/antifungal was effective in preventing relapse in GPA. Whether the benefits of TMP-SMX are related to its antimicrobial properties versus anti-inflammatory effects is still unknown. The objective of this study is to prospectively evaluate the changes in the nasal microbiome, mycobiome, and host immunity in patients with GPA before, during, and after receipt of TMP-SMX for 4 weeks. The target enrollment number is 30 participants, and the investigators will include patients seen at the Penn Vasculitis Center with GPA (diagnosed according to the American College of Rheumatology Classification Criteria or based on investigator's judgment). To analyze nasal microbiome and host immunity, participants will be swabbed with nasal swab and cytobrush for DNA sequencing and other studies. An optional research blood draw is also included. The investigators and coordinators will follow each patient longitudinally over a 6-month period.
The purpose of the study is to evaluate the efficacy of IFX-1 treatment as replacement for glucocorticoid (GC) therapy in subjects with polyangiitis (GPA) or microscopic polyangiitis (MPA).
Granulomatosis with polyangiitis (GPA) is one of antineutrophil cytoplasmic autoantibody (ANCA) - associated vasculitis. Inflammation-induced thrombosis is considered to be a feature of systemic autoimmune diseases. GPA usually involves the upper and lower respiratory tract and renal systems, where necrotizing glomerulonephritis and pulmonary capillaritis are often detected. However, it may also affect other organ systems. Cardiac involvement in GPA occurs in approximately 6% to 44% of cases and is secondary to necrotizing vasculitis with granulomatous infiltrates. Cardiac involvement is an independent predictor of mortality in GPA patients. In this prospective cohort study, consecutive GPA patients who were hospitalized in the Department of Family Medicine, Internal and Metabolic Diseases at the Medical University of Warsaw in Poland are included. In all patients echocardiography and laboratory tests are perform.
The overall objective of this project is to study the influence of modern anti-inflammatory treatments in established inflammatory rheumatic diseases (IRD) on antibody response elicited by pneumococcal vaccination using 13-valent conjugate vaccine in combined schedules with 23-valent polysaccharide vaccine. In addition, the aim is to study the clinical aspects of vaccination regarding: tolerability in immunosuppressed patients with IRD, impact on existing rheumatic disease, possible association with onset of new autoimmune diseases, long-term immunity following pneumococcal vaccination and efficacy in preventing invasive pneumococcal disease. Results from this study are expected to bridge the existing knowledge gap and contribute to body of evidence needed for recommendations and implementation of vaccination program in IRD patients.
The aim of present study is to determine cardiovascular status of children who had KD in past and to identify possible biochemical markers of cardiovascular damage in those patients. In this cross-sectional study children with history of KD will be examined 5 years after receiving intravenous immunoglobulin treatment (IVIG) and compared to healthy controls in terms of: serum levels of endothelial injury markers (circulating endothelial cells, endocan, soluble thrombomodulin, vascular endothelial growth factor (VEGF) and soluble E-selectin), peripheral blood pressure, central blood pressure, arterial stiffness parameters (measured by applanation tonometry), carotid intima media thickness (cIMT), capillaroscopy and echocardiography.
The purpose of this study is to investigate the safety and tolerability of two dose regimens of IFX-1 as add-on to standard of care (SOC) in subjects with GPA and MPA compared with placebo.
Takayasu arteritis (TA) is a vasculitis of unknown origin, resulting in progressive thickening and stenosis of large and medium arteries (the aorta and its major branches, and the pulmonary arteries). First line therapy of TA consists of high dose corticosteroids (CS) (Mukhtyar et al, 2009). Between 20 and 50% of cases respond to CS alone, with subsequent resolution of symptoms and stabilization of vascular abnormalities (Shelhamer et al, 1985; Maksimowicz-McKinnon et al, 2007). Although second-line agents (methotrexate, azathioprine, mycophenolate mofetil, cyclophosphamide) may result in initial remission, relapses remain common when prednisone is tapered (Maksimowicz-McKinnon et al, 2007). Thus, 50% of CS-resistant or relapsing TA patients may achieve sustained remission with the addition of methotrexate (Hoffman et al, 1994). During the last decade, biologics such as anti-tumor necrosis factor alpha (anti-TNFα) and anti-interleukin-6 (anti-IL-6) have been used as third-line treatment in refractory or relapsing TA. Almost 90% of CS-methotrexate resistant TA cases responded to infliximab, an anti-TNFα, and sustained remission was obtained in 37 to 76% of the cases (Schmidt et al, 2012; Comarmond et al, 2012; Mekinian et al, 2012). Tocilizumab, an anti-IL-6 has given similar results with 68% of sustained remission in refractory TA (Abisror et al, 2013). Irrespective of classical cardiovascular risk factors, the systemic inflammation and CS use play a pivotal role in the occurrence of cardiovascular thrombotic events (CVEs) (Roubille et al, 2015). As CVEs overlap with TA complications it is primordial to drastically taper CS in that vasculitis. We therefore aim to analyses prospectively the long term outcome of refractory/relapsing TA patients.
This study will address the following hypothesis: Rituximab therapy leads to an acquired immune deficiency, as demonstrated by impaired vaccine responses, in AAV patients. Aims: 1. To investigate whether rituximab leads to immune deficiency in patients with AAV when compared to both disease and healthy controls. 2. To investigate whether the degree of immune deficiency is associated with the degree of B cell depletion. 3. To investigate whether T-independent vaccine responses are more severely affected than T-dependent vaccine responses after rituximab and whether a conjugated vaccine will overcome this postulated deficit in T independent vaccine responses.
Naltrexone is an FDA approved drug (for alcoholism) that has found widespread use "off-label" to treat pain and improve quality of life at much lower doses than are used for the approved indication. There are a few scientific studies in three conditions (fibromyalgia, Crohn's disease, and multiple sclerosis) that suggest that this drug has benefit and is safe. However, considering the extent of use in other conditions, and uncertainty about the mechanism of action study is needed in a diverse set of diseases, including vasculitis. The purpose of this clinical trial is to determine if low dose naltrexone is effective in improving health-related quality of life (HRQoL) among patients with vasculitis. Although it is a pilot study, a placebo-controlled component is used because of the prominent placebo group effect seen in studies with self-reported subjective outcomes.