CD79A and kidney failure: Additionally, the lupus-IgA nephropathy group showed a slightly lower mortality rate compared to the lupus nephritis cohort (5.6% vs. 10.6%).<h4>Conclusion</h4>Lupus with predominantly IgA deposits often follows a more indolent course than primary IgA nephropathy but severe cases with crescentic glomerulonephritis can still progress to renal failure.