WCN25-1933 WHEN THE SPIKES ARE NOT MEMBRANOUS: AN UNUSUAL PRESENTATION OF FIBRILLARY GLOMERULONEPHRITIS

eGFR over time were substantially lower in pts with CR or UPE <0.5 g/ d vs those who did not achieve these targets.Conclusions: In IgAN, achievement of low proteinuria is strongly predictive of better long-term kidney function.eGFR preservation was more evident in pts who achieved low proteinuria vs those who did not; notably, in pts who achieved CR, the mean rate of kidney function decline (eGFR chronic slope) was <1.0 mL/min/ 1.73 m 2 /y.As SPAR-treated pts achieved proteinuria remission more frequently vs IRB in PROTECT, this analysis further supports the benefit of SPAR for long-term preservation of kidney function.