Telitacicept Achieved Primary Endpoint in Phase 3 Clinical Study for Primary Sjögren's Disease with Telitacicept, a Dual BAFF/APRIL Inhibitor

Core Insights - Telitacicept shows potential as a best-in-disease treatment for primary Sjögren's disease, achieving the primary endpoint in a Phase 3 clinical study in China [2][3] - The drug targets both BAFF and APRIL, addressing the autoimmune signaling cascade, which may allow for disease modification rather than just symptom management [3] - Vor Bio plans to submit a Biologics License Application (BLA) for telitacicept in primary Sjögren's disease, marking its fourth approved indication in China [4] Company Overview - Vor Bio is a clinical-stage biotechnology company focused on advancing telitacicept, a dual-target fusion protein, through Phase 3 clinical development to treat autoimmune diseases [5] - The company aims to transform treatment options for serious autoantibody-driven conditions globally [5] Product Details - Telitacicept is designed to selectively inhibit BLyS (BAFF) and APRIL, reducing autoreactive B cells and autoantibody production, which are key drivers of autoimmune diseases [6] - The drug is already approved in China for systemic lupus erythematosus, rheumatoid arthritis, and generalized myasthenia gravis [7] Disease Context - Primary Sjögren's disease is a chronic autoimmune condition characterized by overactive B cells, leading to inflammation and damage to moisture-producing glands [8] - The disease is often underdiagnosed, with significant impacts on patients' daily lives, and currently lacks systemic disease-modifying therapies [10]