On April 3, 2025 BlossomHill Therapeutics, Inc., a privately-held, clinical-stage biotechnology company focused on the design and development of small molecule medicines for treating cancer and autoimmune diseases, reported that an abstract describing the design and discovery of the company’s novel, macrocyclic, reversible, mutant-selective OMNI-EGFR inhibitor, BH-30643, was accepted for a poster presentation at the upcoming American Association for Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting in Chicago, IL on April 29, 2025 (Press release, BlossomHill Therapeutics, APR 3, 2025, View Source [SID1234651799]).
Schedule your 30 min Free 1stOncology Demo!
Discover why more than 1,500 members use 1stOncology™ to excel in:
Early/Late Stage Pipeline Development - Target Scouting - Clinical Biomarkers - Indication Selection & Expansion - BD&L Contacts - Conference Reports - Combinatorial Drug Settings - Companion Diagnostics - Drug Repositioning - First-in-class Analysis - Competitive Analysis - Deals & Licensing
Schedule Your 30 min Free Demo!
"At BlossomHill, we set out to reimagine what an EGFR inhibitor could achieve as a single agent precision medicine," said Dr. Jean Cui, President and Chief Executive Officer of BlossomHill Therapeutics. "Using an intentional design approach, we targeted structural features shared across activating EGFR mutations, creating an opportunity to potently and selectively target a broad spectrum of EGFR positive lung cancers."
"The growing diversity of treatments for different subgroups of EGFR mutations has added complexity – it can be hard for a doctor or patient to know which is the right treatment," said Dr. Geoff Oxnard, Chief Medical Officer of BlossomHill Therapeutics. "We envision that a super-potent EGFR kinase inhibitor could help achieve in this disease the kinds of durable responses we are seeing with next-generation ALK and ROS1 targeted therapies."
The poster title and session information are provided below. Full abstract details, including title and text, are currently available via the AACR (Free AACR Whitepaper) online itinerary planner.
Poster title: Design and discovery of BH-30643: A novel, reversible, mutant-selective macrocyclic EGFR inhibitor invulnerable to common resistance mutations
Abstract number: 5608
Session Title: Kinase and Phosphatase Inhibitors 3, Experimental and Molecular Therapeutics
Session Date/Time: Tuesday, April 29, 2025, 2:00 p.m. – 5:00 p.m. CT
Presenting Author: Jean Cui, Ph.D., Scientific Founder, President and Chief Executive Officer, BlossomHill Therapeutics
A copy of the poster will be available on the BlossomHill website at the beginning of the AACR (Free AACR Whitepaper) poster presentation.
About BH-30643
BH-30643 is a novel, macrocyclic, reversible, mutant-selective OMNI-EGFR inhibitor for patients with locally advanced or metastatic non-small cell lung cancer (NSCLC) bearing EGFR or HER2 mutations. In preclinical studies, BH-30643 demonstrated potent antitumor activity spanning classical EGFR mutations (exon 19 deletions, L858R), atypical EGFR mutations (G719X, L861Q, S768I, etc.), and exon 20 insertions, maintaining potency in the presence of known resistance mutations. BH-30643 is currently being evaluated in the Phase 1/2 global SOLARA study (NCT06706076), which includes dose escalation followed by expansion cohorts to further evaluate BH-30643 across a range of EGFR and HER2 mutations.