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FDA Approves Gazyva for Idiopathic Nephrotic Syndrome, Offering a New Treatment Option
Friday, 16 October, 2026
Keisha L. Gibson, MD, MPH, pediatric nephrologist at the UNC School of Medicine, discusses the approval of Gazyva (obinutuzumab) for patients with childhood-onset idiopathic nephrotic syndrome (INS).INS is a rare, autoimmune kidney disease that is often managed by corticosteroids and/or mycophenolate mofetil. The disease and treatment however, is characterized by unpredictable relapses that cause fatigue, swelling, weight gain and increased susceptibility to infections and clotting. These flare-ups or relapses also lead to anxiety, depression and reduced self-esteem, brought on by the fear of relapse and social isolation. It is usually diagnosed in early childhood and is the most common form of primary glomerular disease in children.Obinutuzumab is a humanized type II anti-CD20 monoclonal antibody that binds to the CD20 antigen, a proven target for CD20+ B cells. It is the first treatment option for INS to be approved in 70 years. It is currently indicated to reduce the risk of relapse in adult and pediatric patients 2 years of age and older with frequently relapsing or steroid dependent childhood-onset INS who are in complete remission.The approval is based on results from the phase 3 INShore clinical trial (NCT05627557). More obinutuzumab-treated patients experienced no relapses after week 8 and were in complete remission at one year (95%) compared with mycophenolate mofetil (MMF) (73%). Analysis of key secondary endpoints showed statistically significant and clinically meaningful benefits with obinutuzumab with an increase in those with overall relapse-free survival, median time to first relapse or death, and fewer relapses from baseline to week 52, all compared with MMF. Additionally, no new safety signals were observed.This approval is significant to patients and families living with INS because it provides an alternative treatment option to daily oral medications and the toxicities associated with chronic steroid use.For more information on this approval, visit https://www.gene.com/media/statements/ps_092526 or https://checkrare.com/fda-approves-gazyva-obinutuzumab-for-treatment-of-childhood-onset-idiopathic-nephrotic-syndrome/To learn more about INS and other rare kidney conditions, visit https://checkrare.com/diseases/kidney-and-urinary-diseases/Rare Discussions is produced by CheckRare, the leading multimedia platform dedicated to advancing education, awareness, and innovation across the rare disease community.Explore additional physician interviews, podcasts, CME activities, and rare disease resources at CheckRare.com.Subscribe to the CheckRare Podcast Network for expert conversations, weekly news, accredited education, and the latest advances across the rare disease community.Part of the CheckRare Podcast Network: Trusted conversations, news, education, and expert insights across the rare disease community.
