Antengene Enters into a Global Clinical Collaboration with MSD to Evaluate ATG-022 In Combination with KEYTRUDA
“Antengene announced it has entered into a global clinical collaboration with MSD to evaluate the combination of ATG-022, a CLDN18.2-targeting antibody-drug conjugate (ADC), and MSD’s anti-PD-1 therapy, KEYTRUDA® (pembrolizumab) in patients with advanced solid tumors. At the 2025 American Society of Clinical Oncology Gastrointestinal Cancers Symposium (ASCO GI 2025), Antengene presented the latest data from its Phase I/II CLINCH study. Results showed an objective response rate (ORR) of 42.9% and a disease control rate (DCR) of 95.2% in patients with moderate to high CLDN18.2 expression (IHC 2+ ≥ 20%). Additionally, the study demonstrated an ORR of 30.0% and a DCR of 50.0% in patients with low CLDN18.2 expression (IHC 2+ < 20%). ATG-022 also exhibited a favorable safety profile and extended treatment durations, with no observed cases of ophthalmological or neurological toxicities, nor interstitial lung disease.”
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