CStone Pharma-B (02616) announced that the 2025 European Society for Medical Oncology (ESMO) Annual Congress will be held from October 17-21, 2025, in Berlin, Germany. Abstracts for the company's core clinical pipeline CS2009 (PD-1/VEGF/CTLA-4 tri-specific antibody) ongoing Phase I dose escalation clinical data and CS5001 (ROR1 antibody-drug conjugate [ADC]) ongoing Phase Ib clinical study design have been published on ESMO's official website.
The CS2009 abstract covers only Phase I baseline data from 9 patients as of May 8, 2025 (abstract submission deadline), designed to meet ESMO's abstract submission requirements. At the upcoming ESMO congress, CStone Pharma will present preliminary data from CS2009's Phase I dose escalation clinical study in approximately 70 advanced solid tumor patients in poster format. This will mark the world's first clinical data publication for a PD-1/VEGF/CTLA-4 tri-specific antibody to date.