Biotheryx Presents Preclinical CDK4/6 and SOS1 Protein Degrader Data at AACR 2023 Annual Meeting

18 Apr 2023
AACRPROTACsLicense out/in
Data for CDK4/6 and SOS1 programs highlight differentiated therapeutic profiles
BTX-9341 nominated as development candidate for CDK4/6 degrader program for the treatment of solid tumors, currently in IND-enabling studies
SAN DIEGO, CA, USA I April 17, 2023 I Biotheryx, Inc., a biopharmaceutical company discovering and developing a portfolio of first-in-class protein degraders with a focus on validated targets in cancer and inflammatory disease, today announced data presentations on two first-in-class programs at the American Association for Cancer Research (AACR) 2023 Annual Meeting held in Orlando, Florida, on April 14–19, 2023. The presentations highlight preclinical data for bifunctional degraders of cyclin-dependent kinase (CDK) 4/6 for the treatment of solid tumors, and bifunctional degraders of son of sevenless homolog 1 (SOS1) for the treatment of KRAS mutant cancers. Additionally, the Company has nominated BTX-9341 as a development candidate for the CDK4/6 degrader program and has commenced IND-enabling studies.
"Biotheryx is advancing first-in-class bifunctional degraders developed through our PRODEGY platform to overcome common resistance mechanisms to existing inhibitors and provide differentiated treatment possibilities for people facing cancer," said Philippe Drouet, President and Chief Executive Officer of Biotheryx. "At AACR, we are proud to share encouraging preclinical data that highlights the potential of these exciting programs. BTX-9341, our oral CDK4/6 development candidate, has demonstrated superior efficacy in preclinical models of ER+/HER2- breast cancer when compared to CDK4/6 inhibitorsCDK4/6 inhibitors, superior blood-brain-barrier penetration while importantly also showing the ability to be effective in models resistant to existing CDK4/6 inhibitorsCDK4/6 inhibitors. Similarly, in preclinical KRAS mutant cancer models, our SOS1 degraders resulted in greater than 90% degradation of SOS1 in tumors and led to significant tumor growth inhibition."
AACR 2023 Presentation Details:
Title: Discovery of CDK4/6 bifunctional degraders for ER+/HER2- breast cancer and triple negative breast cancer
Presenter: Hannah Majeski, Ph.D., Principal Scientist - Biology
Abstract #: 1553
Session: Cell Cycle/Cell Proliferation Inhibitors for Cancer Therapy
Session Date and Time: Monday, April 17, 2023, at 9:00 a.m. ET
Highlights:
Title: Development of bifunctional CRBN-SOS1 degraders for treatment of mutant KRAS cancers
Presenter: Kyle Begovich, Ph.D., Senior Scientist - Biology
Abstract #: 1578
Session: New Therapeutic Targeted Agents
Session Date and Time: Monday, April 17, 2023, at 9:00 a.m. ET
Highlights:
Following the presentations at the meeting, PDF copies of the presentations and posters will be available in the "Publications and Presentations" section of Biotheryx's website.
Biotheryx is a biopharmaceutical company discovering and developing a portfolio of first-in-class protein degraders, including bifunctional degraders and molecular glues. Our initial focus is on deploying the differentiated potential of degraders towards validated targets in cancer and inflammatory disease. Members of our founding and scientific teams previously developed the first U.S. Food and Drug Administration (FDA) approved modulators of Cereblon, the most widely validated E3 ligase involved in protein degradation, and we have applied our expertise in Cereblon binding to build our proprietary PRODEGY platform. Our pipeline of bifunctional degraders includes BTX-9341, the first-ever degrader of CDK4/6 for solid tumors, and the first-ever degraders of SOS1 for pan-KRAS mutant cancers and PDE4 for inflammatory diseases. Our pipeline of molecular glues includes BTX-1188, a rationally designed, dual-targeting molecular glue degrader of GSPT1 and IKZF1/3 for acute myeloid leukemia and solid tumors, and undisclosed oncology targets through our research collaboration and license agreement with Incyte. For more information, please visit www.biotheryx.com and engage with us on LinkedIn.
SOURCE: Biotheryx
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