08/10/2025 Regeneron's cemiplimab has been approved by the US FDA for the adjuvant Tx of CSCC (Ref) The US FDA approved Regeneron Pharmaceuticals' Libtayo® (cemiplimab; PD-1 inhibitor) as an adjuvant treatment for adult patients with cutaneous squamous cell carcinoma (CSCC) at high risk of recurrence after surgery and radiation. The approval is based on results from the pivotal Phase 3 C-POST trial of adjuvant Libtayo vs placebo in patients with CSCC at high risk of recurrenc