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Kymera Therapeutics Presents New Preclinical Data on STAT3 Degraders at the Society for Immunotherapy of Cancer’s (SITC) 36th Annual Meeting
WATERTOWN, Mass., Nov. 12, 2021 (GLOBE NEWSWIRE) -- Kymera Therapeutics, Inc. (NASDAQ: KYMR), a clinical-stage biopharmaceutical company advancing targeted

About this update from Kymera Therapeutics, Inc.
[{"type":"text","content":"WATERTOWN, Mass., Nov. 12, 2021 (GLOBE NEWSWIRE) -- Kymera Therapeutics, Inc. (NASDAQ: KYMR), a clinical-stage biopharmaceutical company advancing targeted protein degradation (TPD) to deliver novel small molecule protein degrader medicines, today presented new preclinical data from its STAT3 degrader program at the Society for Immunotherapy of Cancer’s (SITC) 36th Annual Meeting, taking place from November 10 - 14, 2021 in Washington, D.C. and virtually. The results reveal Kymera’s potent and selective STAT3 degraders exhibited anti-tumor activity in multiple preclinical animal models of solid and hematologic malignancies that respond poorly to immunotherapies. Administration of a tool STAT3 degrader, KTX-201, led to molecular and cellular changes in the tumor microenvironment that were predictive of favorable responses to checkpoint inhibition. Consistent with these findings, KTX-201 sensitized these tumors to anti-PD1 treatment when administered in combination, leading to durable anti-tumor responses and development of long-term immunological memory. “These encouraging findings underscore the potential power of targeted protein degradation (TPD) to address a range of cancers driven by STAT3, an undruggable transcription factor with effects on both tumor cells and the tumor microenvironment,” said Jared Gollob, MD, Chief Medical Officer at Kymera Therapeutics. “We believe our novel data offer critical insights into the antitumor activity of Kymera’s STAT3 degraders, particularly their potential to synergize with immunotherapies such as checkpoint blockade – which only work in a small percentage of patients – thereby providing a rationale for selectively degrading STAT3 to sensitize cancers to immune checkpoint inhibition in the clinic.” STAT3 is a transcription factor activated through a variety of different cytokine and growth factor receptors via Janus kinases (JAKs), as well as through oncogenic fusion proteins and mutations in STAT3 itself. Long considered an “undruggable” target, STAT3 hyperactivation is prominent in numerous liquid and solid tumors, including clinically aggressive lymphomas. Kymera is developing selective STAT3 degraders for the treatment of hematological malignancies and solid tumors, as well as autoimmune diseases and fibrosis. Kymera’s STAT3 degraders have previously demonstrated strong anti-tumor eff...