GFR refers to Glomerular Filtration Rate which is an important indicator to show how well your kidney function working. Generally speaking, GFR 48 in IgA Nephropathy belongs to stage 2 CKD ( Chronic Kidney Disease) with moderate decreased of kidney function. What is worse, if left untreated, the illness condition will gradually worsen, finally, even develop into kidney failure. So, for these people, they wonder is there some effective treatments aim at improving GFR and treating IgA nephropathy throughly. Fortunately, this article will mainly help you solve this problem.