Kymera Therapeutics, Inc. announced its anticipated 2026 preclinical and clinical milestones across its industry leading oral immunology pipeline. STAT6 Degrader Program: KT-621 is an investigational, first-in-class, once daily, oral degrader of STAT6, the specific transcription factor responsible for IL-4/IL-13 signaling and the central driver of Type 2 inflammation, and currently in Phase 2 clinical testing. Recent KT-621 Updates: In December 2025, the Company reported positive results from the KT-621 BroADen Phase 1b clinical trial in moderate to severe AD patients; In January 2026, the Company initiated the BREADTH Phase 2b clinical trial, a global, randomized, double-blind, placebo-controlled, dose-ranging study evaluating the efficacy, safety and tolerability of three doses of KT-621 in approximately 264 adult patients with moderate to severe eosinophilic asthma over 12 weeks; The Company has completed IND-enabling studies for the program.

partnered Programs: KT-485/SAR447971, a selective, potent, oral IRAK4 degrader, is being advanced in collaboration with Sanofi for immuno-inflammatory diseases, with a Phase 1 clinical trial expected to initiate in 2026. Upon exercise of Gilead's option, which would result in an option exercise payment to Kymera, Gilead would assume all responsibility to develop, manufacture and commercialize all products resulting from the collaboration.