NEWTOWN SQUARE, Pa., Dec. 22, 2025 (GLOBE NEWSWIRE) -- ArriVent BioPharma, Inc. (Company or ArriVent) (NASDAQ:AVBP), a clinical-stage company dedicated to accelerating the global development of innovative biopharmaceutical therapeutics, today announced that the first patient has been dosed in the global pivotal Phase 3 ALPACCA study evaluating firmonertinib monotherapy for first-line treatment of EGFR PACC mutant non-small cell lung cancer (NSCLC). Firmonertinib is an oral, once daily, highly brain-penetrant and broadly active mutation-selective EGFR inhibitor.