Efficacy and Safety for Telitacicept in the Remission Maintenance Treatment of ANCA-associated Vasculitis...
ANCA-associated VasculitisMaintenance TherapyThis study is a prospective, open-labelled, randomized, controlled, single-center clinical trial. The aim of this study is to compare the remission rate of patients treated with Telitacicept combined with azathioprine and azathioprine alone in remission-maintenance treatment of AAV.
PR3-AAV Resilient Remission or PRRR
Granulomatosis With PolyangiitisMicroscopic Polyangiitis1 moreThe purpose of this study is to evaluate the efficacy and safety of obinutuzumab for the treatment of proteinase 3 Anti-Neutrophil Cytoplasmic Antibody (ANCA)-Associated Vasculitis (PR3-AAV).
Maintaining or Stopping Immunosuppressive Therapy in Patients With ANCA Vasculitis and End-stage...
Anti-Neutrophil Cytoplasmic Antibody-Associated VasculitisEnd Stage Renal DiseaseThis prospective randomized trial aims to evaluate the feasibility, risk and benefit of the discontinuation of immunosuppressive maintenance treatments in AAV (Antineutrophil Cytoplasmic Autoantibodies (ANCA)-associated vasculitis) patients who have reached ESRD (end-stage renal disease). Our hypothesis is that discontinuation of immunosuppressive therapy in AAV patients with ESRD will not expose these patients to an excessive risk of extra-renal AAV relapse, while reducing the rate of complications due to immunosuppression, particularly infections. Patients with ESRD related to AAV will be randomized into 2 arms: arm 1: discontinuation (or not initiation) of maintenance treatment (Experimental group) arm 2: maintenance (or initiation) of immunosuppressive treatment (Control group). The main objective of this study is to demonstrate a superiority of immunosuppression discontinuation in ESRD-AAV patients compared to standard maintenance immunosuppressive therapy in terms of severe prejudicial event-free survival at 24 months. The second objectives include the frequency of major and minor relapses, of infectious episodes and leukopenia in both groups and the establishment of a prospective database regarding the outcome of ESRD-AAV patients.
Biocollection of Patients With ANCA Associated Vasculitis
ANCA-associated VasculitisAs rare disease, vasculitis affects a small number of patients, the cohorts available in the literature are few and the pathophysiological mechanisms remain to be elucidated. The collection of standardized data within a patientheque as part of a multi-year follow-up will facilitate the study of the characteristics of these diseases. This may, in particular, address the main objective of identifying predictors of relapse, as well as secondary objectives for predictive factors of mortality, infectious, cardiovascular or neoplastic complications that affect the prognosis of vasculitis in order to establish a more appropriate management of the patients concerned.
Soluble CD95 Ligand Role in the Pathophysiology of Antineutrophil Cytoplasmic Antibody (ANCA) Associated...
ANCA Associated VasculitisThe study aims at defining the role of soluble CD95 Ligand in the physiopathology of a rare group of inflammatory diseases: ANCA associated vasculitis. Soluble CD95 Ligand might have a prognostic and diagnostic interest as well as potential for the discovery of new therapeutic strategies.
Rituximab and Belimumab Combination Therapy in PR3 Vasculitis
ANCA Associated VasculitisGranulomatosis With PolyangiitisMechanistic study to assess whether dual B-cell immunotherapy by co-administration of rituximab and belimumab will result in improvements in biological endpoints, functional outcomes and clinical status compared to rituximab with placebo.
Abatacept for the Treatment of Relapsing, Non-Severe, Granulomatosis With Polyangiitis (Wegener's)...
Granulomatosis With Polyangiitis (Wegener's)Granulomatosis With Polyangiitis2 moreMulti-center, randomized, double-blind, placebo-controlled trial to evaluate the efficacy of abatacept to achieve sustained glucocorticoid-free remission in patients with relapsing non-severe granulomatosis with polyangiitis (Wegener's) (GPA) . Participants will be randomized 1:1 to receive either abatacept 125 mg or placebo administered by subcutaneous injection once a week. Participants will continue on study treatment for a minimum of 12 months unless they experience a disease relapse or disease flare. Participants who experience a non-severe disease relapse, non-severe disease worsening, or who have not achieved remission by month 6 will have the option of entering an open-label trial period whereby they would receive open-label abatacept.
Studies of the Natural History, Pathogenesis, and Outcome of Idiopathic Systemic Vasculitis
Takayasu's ArteritisGiant Cell Arteritis3 moreBackground: - Vasculitis is a group of diseases that inflame and damage blood vessels and tissue. It can cause many medical problems. Few tests can diagnose the disease, and none can reliably predict a relapse. Researchers want to study people s genes and follow people over time to see how the disease affects them. Objective: - To learn the signs, symptoms, imaging tests, genetic markers, and blood tests that can help identify people with vasculitis and predict what will happen to them over time. Eligibility: People age 3 and older who have or are thought to have vasculitis, or are related to someone with it. Healthy volunteers. Design: Participants will be evaluated by a doctor who has expertise caring for patients with vasculitis. Participants will give a blood sample. Some will give a urine sample. Some participants may have brushings or biopsies taken from the inside lining of the nose. Images of participants blood vessels may be taken using scans. For some scans, participants will lie on a table that moves in and out of a cylinder that takes pictures. For some scans, a contrast agent may be injected into an arm vein. Other scans may use a radioactive form of sugar. Healthy minors will not have scans. Some participants will answer questionnaires. - Some participants will have their tests done at NIH. Others will have their doctor take the blood, saliva, or cheek swab samples and send them to NIH. Some participants will have one visit lasting 1-2 (but sometimes up to 4) days. Some participants may have follow-up visits every 3 - 6 months, indefinitely.
Multicenter Cohort Study of AAV in Hunan of China
ANCA Associated VasculitisThis study aimed to explore the incidence of Anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) progression and its association with adverse consequences. It will enroll approximately 500 AAV patients in Hunan province of China and follow-up for at least 5 years. Demographic characteristics, clinical and laboratory data will be collected at baseline and every follow-up. The principal clinical outcomes of the study consist of end stage renal disease (ESRD) and death.
Study of Salvage Therapy to Treat Patients With Granulomatosis With Polyangiitis
Granulomatosis With PolyangiitisAnti-neutrophil Cytoplasmic Antibody-associated VasculitisThe purpose of this study is to identify the most promising therapeutic strategy for patients with granulomatosis with polyangiitis and inadequate response to standard of care therapy. It will evaluate the efficacy to induce remission of three different salvage strategies including: a combination of rituximab with addition of a conventional disease-modifying antirheumatic drugs (either methotrexate, azathioprine or mycophenolate mofetil, but preferentially methotrexate); tocilizumab; or abatacept.