Core Opinion - Regeneron Pharmaceuticals received a positive opinion from the European Medicines Agency's Committee for Medicinal Products for Human Use for Libtayo as an adjuvant treatment for adult patients with high-risk cutaneous squamous cell carcinoma (CSCC) after surgery and radiation [1][2] Clinical Trial Results - The Phase 3 C-POST trial demonstrated that Libtayo significantly reduced the risk of disease recurrence or death by 68% compared to placebo, with a hazard ratio of 0.32 and a p-value of less than 0.0001 [1][2] - In the trial, locoregional or distant recurrence rates were lower in the Libtayo group (4% vs. 17% for locoregional and 5% vs. 13% for distant recurrence) compared to placebo [2] Safety Profile - The safety profile of Libtayo in this trial was consistent with its known safety profile in advanced cancers, with adverse events occurring in 91% of patients receiving Libtayo and 89% in the placebo group [3] - Grade ≥3 adverse events were reported in 24% of the Libtayo group compared to 14% in the placebo group, with hypertension being the only grade ≥3 adverse event occurring in more than 2% of patients in the Libtayo arm [3] Trial Design - The C-POST trial was a randomized, placebo-controlled, double-blind, multicenter global study involving 415 patients at high risk of CSCC recurrence [4][5] - Participants received either Libtayo or placebo for up to 48 weeks, with specific dosing regimens outlined [5] About CSCC - Cutaneous squamous cell carcinoma (CSCC) is a common type of non-melanoma skin cancer, with a projected 40% increase in incidence in the EU by 2040 [6] Regeneron's Commitment to Cancer Treatment - Regeneron aims to develop transformative medicines for cancer, leveraging scientific innovation and a deep understanding of biology and genetics [7][8] - The company has a robust pipeline focused on various solid tumors and blood cancers, with Libtayo being a key asset [8][27]