Vertex's Phase 3 RAINIER trial of povetacicept in IgA nephropathy met its primary endpoint with a 52% UPCR reduction. The FDA granted rolling review, and Vertex plans full BLA submission by end of March. Shares rose on the news and analyst upgrades.
Vera Therapeutics and the FDA aligned on an earlier ORIGIN 3 eGFR analysis plan to support potential full approval of atacicept for IgA Nephropathy, with results now expected in Q3 2026. The company plans to submit a supplemental BLA in Q4 2026 following positive results. The pivotal trial previously met its primary endpoint with a 46% reduction in proteinuria.
Final phase 3 trial results show atrasentan (Vanrafia®) provides significant long-term kidney function benefits in IgA nephropathy patients, with a 2.59 mL/min/1.73m² eGFR improvement versus placebo. Earlier phase 2 data demonstrated the drug reduces proteinuria by 30.7% when added to standard background therapy. The drug's manufacturer plans to seek traditional FDA approval in 2026 based on these findings.
New research demonstrates machine learning can optimize drug dosing, identifies biomarkers of treatment response, and validates prognostic criteria for long-term kidney survival in pediatric lupus nephritis patients.
Novartis announced final Phase III ALIGN trial results showing Vanrafia (atrasentan) slowed kidney function decline in adults with IgA nephropathy, with a 2.39ml/min/1.73m² eGFR difference versus placebo at week 136.
