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Kymera Therapeutics Announces U.S. FDA Fast Track Designation for KT-621, a First-in-Class, Oral STAT6 Degrader for the Treatment of Atopic Dermatitis
Fast Track designation supported by positive results from the KT-621 BroADen Phase 1b atopic dermatitis (AD) patient trial KT-621 BROADEN2 Phase 2b AD trial
About this update from Kymera Therapeutics, Inc.
[{"type":"text","content":"Fast Track designation supported by positive results from the KT-621 BroADen Phase 1b atopic dermatitis (AD) patient trial KT-621 BROADEN2 Phase 2b AD trial ongoing, with data expected to be reported by mid-2027 and BREADTH Phase 2b trial in asthma on track to initiate in 1Q26 WATERTOWN, Mass., Dec. 11, 2025 (GLOBE NEWSWIRE) -- Kymera Therapeutics, Inc. (NASDAQ: KYMR), a clinical-stage biopharmaceutical company advancing a new class of oral small molecule degrader medicines for immunological diseases, today announced that the U.S. Food and Drug Administration (FDA) has granted Fast Track designation to KT-621, its first-in-class, oral STAT6 degrader, for the treatment of moderate to severe atopic dermatitis (AD). “Atopic dermatitis is a chronic, debilitating disease. Far too many patients are currently untreated and are looking for new options. Receiving Fast Track designation will allow us to explore ways to accelerate the development of KT-621 and reflects the immense opportunity to advance a first-in-industry oral therapy that could address significant gaps within the current treatment landscape,” said Nello Mainolfi, PhD, Founder, President and CEO of Kymera Therapeutics. “Our goal with KT-621 is to deliver a once-a-day oral medicine with the activity and safety of injectable biologics, but in a far more convenient format – broadening access and supporting better outcomes for the millions of adults and children affected by AD and other Type 2-driven diseases around the world.” The Company recently reported positive results from the BroADen Phase 1b AD trial, in which KT-621 demonstrated the potential to provide a once-daily oral treatment for Type 2 inflammatory diseases across every measure evaluated, including STAT6 degradation, biomarker modulation, clinical activity, impact on comorbid Type 2 diseases, and safety. The KT-621 BROADEN2 Phase 2b trial in moderate to severe AD patients is ongoing, with data expected to be reported by mid-2027. The BREADTH Phase 2b trial in asthma is planned to start in the first quarter of 2026. These studies are intended to accelerate KT-621 development and enable dose selection for subsequent parallel Phase 3 registration studies across multiple Type 2 dermatology, gastroenterology and respiratory indications. The FDA’s Fast Track process is designed to get important new medicines to patie...