Transcenta Updates Encouraging Efficacy Data from First-line Triple Combo Trial of Osemitamab (TST001) for G/GEJ Cancer at ESMO 2024

Updated results with longer follow-up reveal confirmed ORR of 68% and median PFS of 14.2 months in patients with CLDN18.2 high or medium expression, known PD-L1 CPS (n=66).

PRINCETON, N.J. and SUZHOU, China, Sept. 18, 2024 /PRNewswire/ — Transcenta Holding Limited (“Transcenta”) (HKEX: 06628), a global clinical stage biopharmaceutical company with fully-integrated capabilities in discovery, research, development and manufacturing of antibody-based therapeutics, today announced the updated results from the cohort-G data for Osemitamab (TST001) plus Nivolumab and CAPOX as the first-line treatment for the patients with advanced G/GEJ cancer (TranStar102). The updated data continues to show encouraging efficacy from previously disclosed data at ASCO 2024.

The results showed that in patients with known CLDN18.2 and PD-L1 status, the median progression-free survival (mPFS) reached 14.2 months for those with H/M CLDN18.2 expression, with a confirmed objective response rate of 68%. The vast majority of these patients are PD-L1 CPS