Anti-Glomerular Basement Membrane Disease

This study aims to clarify the prognosis of the rare but severe condition anti-glomerular basement membrane disease (anti-GBM disease also known as Goodpastures disease). Specifically, the aim is to investigate how the prognosis is affected by treatment options and disease severity at presentation measured using biomarkers in blood and urine. The study has two arms, one focusing on treatment (A) and one focusing on biomarkers (B). Data from a research subject (patient) can be included in both arms. For inclusion in arm A patients must be diagnosed after 01-01-2010 with available information about treatment and the participating clinic must have a search strategy enabling inclusion of \> 80% of their patients. For inclusion in arm B there is no time limit, but there must be blood and/or urine samples available from the time of diagnosis and information about if the patient was alive six m