Clinical Research Directory

Safety and Immunogenicity of the Live Attenuated Tetravalent Butantan-Dengue Vaccine in Autoimmune Rheumatic Diseases

The goal of this clinical trial is to evaluate whether the live attenuated tetravalent Butantan-Dengue vaccine (Butantan-DV) is safe and capable of inducing an immune response in patients aged 12 to 59 years with autoimmune rheumatic diseases (ARDs) who are clinically stable and under low-grade or no immunosuppression, as well as in healthy volunteers matched by sex and age. The main questions it aims to answer are: Does the vaccine induce adequate seroconversion in patients with ARDs compared to healthy controls? What is the frequency and intensity of common adverse events after vaccination in ARDs patients? Does physical activity levels and nutritional status influence vaccine-induced immune response in patients with ARDs? Researchers will compare patients with ARDs to healthy controls to evaluate if the vaccine elicits similar immune responses and safety profiles. All participants will: * receive a single 0.5 mL dose of the Butantan-DV vaccine via subcutaneous injection; * undergo blood sample collection before and after vaccination (baseline, Day 42, and Day 400) to assess antibody and cellular responses; * attend follow-up visits on Days 7, 14, and 42 for safety monitoring and laboratory tests; * report any symptoms or adverse events using a standardized diary for 42 days; * be followed for up to one year for long-term safety and immunogenicity assessments. * wear a device for 14 consecutive days to assess current and habitual physical activity levels. * answer three non-consecutive 24-hour dietary recalls, including at least one weekend day to assess nutritional status. * collect blood samples one-year after vaccination to access immunogenicity and cellular response. Researcher will also perform subgroups analysis in: A viremia subgroup (50 patients and 50 healthy controls) will provide additional samples on Days 1, 7, 14, 28, 42, and-if viremia is detected-Day 68, to evaluate post-vaccination viremia and its duration. An immunogenicity subgroup (\~20% of participants, n=96) will undergo cellular immune response testing via flow cytometry to evaluate T-cell responses.

PR3-AAV Resilient Remission or PRRR

The 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).

Hydroxychloroquine in ANCA Vasculitis Evaluation

The purpose of this study is to find out whether hydroxychloroquine, in addition to background treatments, reduces disease activity in patients with Anti-Neutrophilic Cytoplasmic Autoantibodies (ANCA) Vasculitis, a group of autoimmune diseases. Hydroxychloroquine and is an established, effective, safe and inexpensive therapy, widely used in other autoimmune diseases such as lupus and rheumatoid arthritis. The study is open to adults diagnosed with certain types of vasculitis, called Granulomatosis Polyangiitis (GPA), Microscopic Polyangiitis (MPA) or Eosinophilic Granulomatosis with Polyangiitis (EGPA). Participants will be eligible if they are treated with background medication to control their vasculitis disease and have a low level of disease activity as defined by a Birmingham Vasculitis Activity Score (BVAS) of greater than 3. Participants will be randomly placed in 1 of 2 groups. Both groups will be given background medication. One group will receive hydroxychloroquine and the other will receive placebo. Participants will be on treatment for 1 year. 76 ANCA Vasculitis participants will be recruited (38 in each treatment arm) from UK vasculitis specialist centres.

VCRC Tissue Repository

The purpose of this study is to collect existing tissue specimens from subjects enrolled in Vasculitis Clinical Research Consortium (VCRC) studies. Analysis of these tissue specimens and linked clinical data collected through VCRC studies may lead to the identification and development of a series of translational research projects. Results of these studies will provide vasculitis researchers with insight into the causes of these diseases and generate new ideas for diagnostic tests and therapies, and will be of great interest to the larger communities of researchers investigating vasculitis and other autoimmune, inflammatory, and vascular diseases.

One-Time DNA Study for Vasculitis

The purpose of this study is to identify genes that increase the risk of developing vasculitis, a group of severe diseases that feature inflammation of blood vessels. Results of these studies will provide vasculitis researchers with insight into the causes of these diseases and generate new ideas for diagnostic tests and therapies, and will be of great interest to the larger communities of researchers investigating vasculitis and other autoimmune, inflammatory, and vascular diseases.

Study Evaluating SC291 in Subjects With Severe r/r B-cell Mediated Autoimmune Diseases (GLEAM)

SC291-102 is a Phase 1 study to evaluate SC291 safety and tolerability, preliminary clinical response, cellular kinetics and exploratory assessments for subjects with severe autoimmune diseases.

Fourth-gen CAR T Cells Targeting BCMA/CD19 for Refractory Systemic Lupus Erythematosus (SLE)

This study is a preliminary investigation, with a single-group design, not randomized and transparent, focusing on treatment. Its purpose is to identify the highest dose of BH002 injection (CD19-BCMA CAR-T cells) that patients suffering from resistant systemic lupus erythematosus can tolerate.