1. How will fourth-generation EGFR inhibitors and emerging substitutes impact the Osimertinib Market?
Fourth-generation EGFR inhibitors such as BLU-945 are being designed to target C797S resistance, a key limitation of osimertinib. Over 25 compounds are in preclinical development, with first pivotal trials expected by 2027. Antibody-drug conjugates like patritumab deruxtecan also show promise in later lines, but none has yet demonstrated superiority over osimertinib in a registrational trial.

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