Systemic lupus erythematosus (lupus; SLE), Systemic Sclerosis (scleroderma; SSc) and Systemic Vasculitis (SV) are relatively rare rheumatic diseases that disproportionately impact the African American community, and particularly African American women. The causes of lupus, scleroderma and vasculitis are unknown, but thought to include both genetic and environmental factors. We are enrolling lupus, scleroderma, and vasculitis patients, and healthy control subjects. This is not a drug study. The purpose of this study is to better understand the factors that predispose people to develop lupus, scleroderma, and vasculitis. Information about medical, social and family history, medications, physical exam findings, and laboratory tests will be collected for analysis. This study will involve approximately 1360 volunteers.

The purpose of this study is to test whether a drug called NS-229 (the study drug) is a potential treatment for patients with Eosinophilic Granulomatosis With Polyangiitis (EGPA).

NS-229 is an investigational drug that is provided in an oral pill form. An investigational drug is not approved by The US Food and Drug Administration. It can only be used in a research study like this one. In this study, NS-229 will be compared with a placebo (dummy drug), having no active drug in it. This is a randomized study, meaning that you will be assigned by chance (like flipping a coin) to receive either the study drug or placebo. The study is also double-blinded study, meaning you and your study doctor will not know what you are receiving, the NS-229 or placebo.

The study is sponsored by a NS Pharma, Inc. Participation in the study will require 12 visits to the MUSC main campus over approximately 8 months. Visits are much like the your standard of care and include the following procedures: blood draw, urine collection, physician-led assessments of your disease (for example physical exam and medical history review), tests to assess your lung function and health (Pulmonary Function Test (PFT) and spirometry, health questionnaires. You will also be asked to complete a daily diary regarding your medication use and vasculitis symptoms.

Compensation is available for participation