Shanghai – September 20, 2026 -- Abbisko Therapeutics Co., Ltd. (HKEX: 02256.HK) reported that its oral FGFR2/3 inhibitor lavengratinib achieved a mean increase of 2.4 cm/year in annualized height velocity among children with achondroplasia in the lowest-dose cohort of a Phase II trial, with a 100% responder rate.