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Zenas BioPharma Announces Upcoming Presentations of Obexelimab Data in IgG4-Related Disease at the IgG4ward! 6th International Symposium on IgG4-Related Disease and ACR Convergence 2026

$ZBIOPress releaseSep 22, 2026, 7:05 AM ETRead the release

Zenas BioPharma (Nasdaq: ZBIO) said new data from the Phase 3 INDIGO trial of obexelimab in IgG4-related disease will be presented at the 6th International Symposium on IgG4-Related Disease (October 8-10, Cambridge, MA) and ACR Convergence 2026 (November 6-11, Orlando, FL). The lineup includes longer-term flare protection and safety data from the INDIGO open-label extension, plus analyses of glucocorticoid-associated toxicity and of influenza and SARS-CoV-2 vaccine responses in treated patients. Obexelimab has been evaluated in nine clinical trials totaling 667 subjects; IgG4-RD affects roughly 20,000 diagnosed patients in the US, with true prevalence estimated closer to 40,000.

Key figures

Drug Name
obexelimab
Phase Of Trial
Phase 3
Clinical trials to date
9
Sunstone topline timing
4Q 2026
Total subjects evaluated
667
Estimated us igg4rd patients
40000
Us diagnosed igg4rd patients
20000

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