Apellis' Empaveli Gains FDA Approval for Broad C3 Glomerulopathy Use, Setting Up Competition with Novartis' Fabhalta on July 29, 2025 Apellis Approved C3 glomerulopathy Empaveli Fabhalta Iptacopan Kidney Diseases membranoproliferative glomerulonephritis Novartis pegcetacoplan Proteinuria United States Food and Drug Administration +