Regeneron Unveils Detailed Phase 3 C-POST Trial Results For Libtayo In High-Risk CSCC Patients

From Nasdaq: 2025-05-31 09:55:00

Regeneron Pharmaceuticals Inc. announced positive results from the Phase 3 C-POST trial, showing that PD-1 inhibitor Libtayo is effective in treating high-risk cutaneous squamous cell carcinoma post-surgery. The trial demonstrated a 68% reduction in the risk of disease recurrence or death, along with significant reductions in locoregional and distant recurrence rates. The data suggests that cemiplimab is a highly active therapy for this type of cancer, with promising outcomes across primary and secondary endpoints. This news provides hope for patients with this aggressive form of skin cancer.



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