17 October 2025 - Positive opinion based on results of Phase 3 C-POST trial that show Libtayo significantly reduced the risk of disease recurrence or death by 68% compared to placebo (hazard ratio: 0.32; 95% confidence interval: 0.20-0.51; p<0.0001), the primary endpoint of the trial.
Regeneron Pharmaceuticals today announced that the EMA's CHMP has adopted a positive opinion for Libtayo (cemiplimab) as an adjuvant treatment for adult patients with cutaneous squamous cell carcinoma at high risk of recurrence after surgery and radiation.