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BlossomHill Therapeutics Announces Collaboration with Foundation Medicine to Develop First Companion Diagnostic for BH-30643 in EGFR C797S Mutated Non-Small Cell Lung Cancer

$BLSMPress releaseOct 22, 2026, 7:00 AM ETRead the release

BlossomHill Therapeutics announced a collaboration with Foundation Medicine to develop the first companion diagnostic assay for the EGFR C797S resistance mutation, the most common driver of resistance to osimertinib in EGFR-mutant NSCLC. The CDx assay will be validated using the ongoing Phase 1/2 SOLARA trial (NCT06706076) of BH-30643, a macrocyclic mutant-selective OMNI-EGFR inhibitor with Fast Track designation for the C797S population.

Key figures

Drug Name
BH-30643
Phase Of Trial
Phase 1/2
Trial Name
SOLARA
Trial Sites
more than 40 sites in 10 countries

AI analysis

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    BLSM: BlossomHill Therapeutics Announces Collaboration with Foundation Medicine to Develop First Companion Diagnostic for BH-30643 in EGFR C797S Mutated Non-Small Cell Lung Cancer — AI Analysis | Signal8