News

People with ANCA-associated vasculitis (AAV) that affects their kidneys are at a significantly increased risk of kidney failure if they show a high proportion of inflamed glomeruli (the organ’s filtering units) on biopsies collected at diagnosis, a study has found. The study, “Renal histopathological predictors of…

High blood levels of the immune protein C4 are significantly associated with greater kidney-specific disease activity and a higher chance of developing kidney failure with microscopic polyangiitis (MPA), the most common type of ANCA-associated vasculitis (AAV), a study shows. For this reason, measuring blood C4 levels may help predict…

Nearly all ANCA-associated vasculitis (AAV) patients undergoing a bronchoscopy — a minimally invasive procedure to examine the lungs and air passages — at disease onset show lung involvement, a study reported. Bleeding from the alveoli, the tiny air sacs in the lungs where gases are exchanged, also was the most…

Blood levels of ANCAs — the disease-causing antibodies that give ANCA-associated vasculitis (AAV) its name — can be used to help distinguish AAV from other conditions in which ANCAs might also be present, a study showed. Higher levels of the antibodies at diagnosis also were significantly tied to greater…

The severity of anemia, or low levels of oxygen-carrying hemoglobin, is significantly associated with certain kidney lesions in people with ANCA-associated vasculitis (AAV) and kidney involvement, a study showed. These findings “reflect an additional aspect of anemia pathophysiology [disease mechanisms] in ANCA-associated renal vasculitis,” the researchers wrote. The study,…

Granulomatosis with polyangiitis (GPA) is the most common type of ANCA-associated vasculitis (AAV) in Italy and is linked to worse symptoms and higher mortality and healthcare costs than microscopic polyangiitis (MPA), another common AAV type, a study finds. Using immunosuppressive glucocorticoids was also associated with higher costs…

Treatment with rituximab has a similar efficacy to cyclophosphamide — both of them standard immunosuppressive therapies — in reducing short-time mortality in adults with life-threatening ANCA-associated vasculitis (AAV), a study in Japan found. Moreover, rituximab was associated with a significantly lower risk of fungal infections relative to cyclophosphamide. However,…

A treatment regimen that combines low-dose glucocorticoids and rituximab is just as effective at controlling ANCA-associated vasculitis (AAV) as a standard regimen of high-dose glucocorticoids and rituximab, according to two-year data from a clinical trial. The long-term findings indicate that, while the efficacy is comparable, the risk of serious…

Lower-than-normal counts of lymphocytes, a type of immune cell, are linked to a higher risk of severe infection in older adults with microscopic polyangiitis (MPA), the most common type of ANCA-associated vasculitis (AAV), according to a new Japanese study. In fact, the study found that “56 severe infectious…

The ANCA Renal Risk Score, known as the ARRS, was found to be better than standard methods at predicting the likelihood of kidney failure in children with ANCA-associated vasculitis (AAV) who have kidney inflammation, a study in China showed. “Our findings suggest that ARRS is an independent risk factor…