Kymera Therapeutics Presents Positive Late-Breaking Data from Non-Interventional Study in Patients with Hidradenitis Suppurativa at the Society for Investigative Dermatology 2021 Annual Meeting
Data provide further evidence for the central role of IRAK4 in inflammation in hidradenitis suppurativa and support both the degrader rationale for targeting IRAK4 and KT-474 development
KT-474 is in Phase 1 clinical development as a first-in-class oral IRAK4 degrader for the treatment of immune-inflammatory diseases, such as atopic dermatitis, hidradenitis suppurativa, rheumatoid arthritis, and potentially others
WATERTOWN, Mass., May 03, 2021 (GLOBE NEWSWIRE) -- Kymera Therapeutics, Inc. (NASDAQ: KYMR), a clinical-stage biopharmaceutical company advancing targeted protein degradation to deliver novel small molecule protein degrader medicines, today presented positive late-breaking data in patients with hidradenitis suppurativa (HS) from its non-interventional study of patients with HS or atopic dermatitis (AD). The non-interventional study is evaluating expression of IRAK4 and other mediators of inflammation in the skin and blood of patients with HS or AD and the ex vivo effect of the IRAK4 degrader KT-474. The late-breaking data presentation is available at the Society for Investigative Dermatology (SID) 2021 Annual Meeting, being held virtually May 3-8, 2021 (LB819: Multiple mediators of inflammation correlate with IRAK4 expression in the skin of hidradenitis suppurativa patients and are blocked by the IRAK4 protein degrader KT-474 in TLR-activated monocytes).
The non-interventional study is designed to characterize IRAK4 expression and its relationship to inflammatory biomarkers in diseased tissues of HS or AD patients, as well as demonstrate ex vivo proof of mechanism with KT-474. Conducted in collaboration with Afsaneh Alavi, MD, at York Dermatology Clinic and Research Center in Ontario, Canada, the non-interventional trial enrolled 30 patients with HS and 10 patients with AD. Interim data from HS patients, including IRAK4 expression in the skin and blood of HS patients and ex vivo treatment of whole blood with KT-474, were previously presented at the 5th Annual Symposium on Hidradenitis Suppurativa Advances (SHSA) in October 2020. The presentation at the SID Annual Meeting includes the full HS dataset for IRAK4 and inflammatory gene transcripts in skin, as well as data from healthy subject skin and from healthy monocytes treated ex vivo with KT-474 prior to toll-like receptor (TLR) stimulation. Additional study results, including data from patients with AD, are expected to be presented later this year.
“IRAK4 plays a central role in inflammation through its control of TLR and IL-1R signaling, and these data from our non-interventional study showing upregulation of gene transcripts for multiple mediators of inflammation in active HS skin lesions that correlates with IRAK4 protein expression support the relevance of the IRAK4 signaling pathway in HS,” said Jared Gollob, MD, Chief Medical Officer at Kymera Therapeutics. “The ability of KT-474 to inhibit TLR-mediated upregulation of many of these same genes in monocytes, a key driver of inflammation in HS with overexpression of IRAK4 relative to other immune cell subsets, further points to the central role of IRAK4 in HS skin lesions and underscores the potential of an IRAK4 degrader to impact the clinical manifestations of HS.”
Data highlights include:
“HS is a chronic and debilitating inflammatory skin disease with critical unmet medical needs that call for the development of new and better treatments,” said Dr. Alavi, Principal Investigator and currently at Mayo Clinic in Rochester, MN. “These new results linking IRAK4 protein expression to the pleiotropic inflammation in HS skin lesions suggest that selective IRAK4 targeting with KT-474 coud have a broad anti-inflammatory effect with the potential to improve patient outcomes.”
“The dataset generated in HS patients continues to validate the role of IRAK4 as a key focal mediator of inflammation in this serious disease and derisks both our target selection, as well as our development strategy, for KT-474, the first IRAK4 degrader and first heterobifunctional small molecule protein degrader to enter clinical development outside of oncology. Our ongoing Phase 1 trial in healthy volunteers and patients with HS or AD provides us with the opportunity to generate one of the most robust datasets in the targeted protein degradation field to date, including proof-of-biology in TLR/IL-1R-driven skin diseases using the same biomarker assays established in the non-interventional study,” said Nello Mainolfi, PhD, Co-Founder, President and CEO, Kymera Therapeutics.
The presentation is available on demand from May 3-31, 2021 and is available for download at https://www.kymeratx.com/scientific-resources/.
About IRAK4 and KT-474
Kymera is collaborating with Sanofi on the development of degrader candidates targeting IRAK4, including KT-474 (SAR444656), outside of the oncology and immuno-oncology fields.
About Kymera Therapeutics
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