Regeneron Showcases Advances Across Oncology Portfolio and Pipeline at ESMO, Highlighting Novel and Patient-Focused Approach for Difficult-to-Treat Cancers

Core Insights - Regeneron Pharmaceuticals announced new data from the Phase 3 C-POST trial for Libtayo (cemiplimab), focusing on a patient-centric every 6-week dosing regimen for high-risk cutaneous squamous cell carcinoma (CSCC) [1][2] Group 1: Clinical Data and Trial Results - The C-POST trial data will be presented at the ESMO 2025 Meeting, highlighting the efficacy and safety of Libtayo as an adjuvant treatment for CSCC [1][2] - Patients in the trial initially received 350 mg of Libtayo every 3 weeks for 12 weeks, with most switching to every 6-week dosing thereafter, while the safety profile remained consistent with previous findings [2] Group 2: Regulatory and Approval Status - The new data supports the FDA approval of Libtayo as the first immunotherapy for adjuvant treatment of adult patients with high-risk CSCC following surgery and radiation [2] Group 3: Company Overview and Pipeline - Regeneron is focused on developing therapies for over 30 types of solid tumors and blood cancers, with nearly half of its pipeline dedicated to oncology assets [6][26] - Libtayo is a fully human monoclonal antibody targeting the PD-1 immune checkpoint, approved in over 30 countries for various indications, including advanced CSCC and non-small cell lung cancer [8][9]