Ipixuna

Researchers are studying the safety and tolerability of budoprutug, a humanized monoclonal antibody that targets CD19 cells, in adults with primary membranous nephropathy (PMN). This Phase 2, open-label, multicenter trial focuses on patients who are anti-PLA2R antibody positive and continue to have proteinuria despite optimized RAAS inhibition. The study aims to evaluate three different intravenous dose regimens of budoprutug and their effects on this specific kidney condition. Participants will receive budoprutug through single intravenous doses on Day 1, Day 15, Day 169, and Day 183 within one of three sequential dose groups. Approximately 45 subjects will be enrolled, each receiving treatment according to their assigned dosing schedule. The study includes a follow-up period through Week 48, with additional monitoring for B-cell recovery as needed. During the study, participants will undergo safety assessments including monitoring for treatment-emergent adverse events up to 48 weeks. Researchers will also evaluate pharmacodynamics and preliminary efficacy through laboratory tests and clinical evaluations. Regular visits will include tests for kidney function, protein levels in urine, and blood cell counts, alongside other health assessments to ensure participant safety and gather data on how the drug affects the disease.